bluuebunny/crossref_metadata_2025 huggingface dataset:
UJI ADAPTASI BEBERAPA JENIS VARIETAS PADI (Oryza sativa L.) PADA TANAH SULFAT MASAM DENGAN TINGKAT PENGAPURAN YANG BERBEDA
Authors: Suyanto Agus , Setiawan Setiawan , Rahayu Sri
Published: August 2023

Penelitian dilaksanakan di Green House Fakultas Pertanian UPB Pontianak pada bulan Mei sampai Agustus 2020. Metode penelitian menggunakan Rancangan Acak Kelompok (RAK) pola faktorial. Faktor pertama jenis varietas (V1) yang terdiri dari 6 taraf yaitu : V1 = Varietas Lokal Bangkok, V2 = Varietas Argo Ketapang, V3 = Varietas Inpari 32, V4 = Varietas Padi Hitam SIGE F1, V5 = Varietas Padi Tahan Rebah TAB F1, V6 = Varietas Sertani 14. Faktor kedua dosis kapur (K) dengan 3 taraf yaitu : K0 = 0gr (0 ton/ha), K1= 5gr (1 ton/ha) dan K2= 10gr (2 ton/ha). Variabel yang diamati adalah tinggi tanaman, jumlah anakan, jumlah anakan produktif, panjang malai, jumlah bulir permalai, berat bulir permalai, berat 100 bulir gabah kering giling dan berat gabah kering giling per rumpun. Pengaruh interaksi perlakuan jenis varietas dan dosis kapur berpengaruh tidak nyata pada semua variabel pengamatan yang diamati, demikian pula perlakuan dosis kapur berpengaruh tidak nyata pada semua variabel pengamatan yang diamati. Perlakuan jenis varietas berpengaruh sangat nyata terhadap tinggi tanaman, jumlah anakan, jumlah anakan produktif, panjang malai, jumlah bulir permalai, berat bulir permalai, berat 100 bulir gabah kering giling dan berat bulir per rumpun. Perlakuan V5 menunjukkan hasil terbaik pada variabel pengamatan tinggi tanaman (107.22 cm), panjang malai (30.06 cm), jumlah bulir permalai (222.56 bulir), berat bulir permalai (5.44 g ), berat 100 bulir gabah kering giling (3.14 g) dan berat gabah kering giling per rumpun (54.72 g). Perlakuan V4 menunjukan hasil terbaik pada variabel jumlah anakan (33.67 anakan) dan perlakuan V2 menunjukan hasil terbaik pada variabel jumlah anakan produktif (27.39 anakan).
PENGARUH OLAH TANAH DAN KOMBINASI PEMUPUKAN TERHADAP PERTUMBUHAN DAN HASIL SORGUM (Sorgum bicolor [ L.] Moench) PADA MUSIM TANAM KE-7 DI GEDUNG MENENG
Authors: Puspitarini Cicilia , Hadi Muhammad Syamsoel , Lumbanraja Jamalam , Kamal Muhammad
Published: August 2023

Permasalahan yang terjadi pada budidaya sorgum adalah teknik budidaya yang kurang optimal seperti pengolahan tanah dan pemupukan. Peningkatan produksi sorgum dapat dilakukan dengan pengolahan tanah dan pemupukan untuk mendapatkan kondisi tanah yang baik sehingga unsur hara dapat diserap tanaman menuju keberlanjutan budidaya. Penelitian ini dilaksanakan di LTPD Fakultas Pertanian Universitas Lampung pada Juli-Oktober 2021. Penelitian ini bertujuan untuk mengetahui pengaruh pengolahan tanah, dosis pupuk, dan interaksi olah tanah dan dosis pupuk terhadap pertumbuhan dan hasil sorgum pada musim tanam ke-7. Penelitian disusun dengan rancangan acak kelompok dengan perlakuan terdiri dari pengolahan tanah dan pemupukan. Hasil penelitian menunjukkan bahwa: sistem olah tanah minimum menunjukkan pertumbuhan yang lebih tinggi dibandingkan olah tanah intensif, perlakuan dosis pupuk penuh menghasilkan pertumbuhan dan hasil yang lebih tinggi dibandingkan dosis pupuk setengah, penerapan olah tanah minimum dan dosis pupuk penuh menghasilkan pertumbuhan yang tinggi dibandingkan kombinasi lainnya
ZONASI AGROKLIMAT KABUPATEN LAMPUNG TENGAH UNTUK TANAMAN PADI BERBASIS GEOGRAPHIC INFORMATION SYSTEM
Authors: Ridwan Ridwan , Amin Muhammad , Asmara Sandi
Published: August 2023

Klasifikasi iklim di Indonesia diperlukan untuk menyederhanakan iklim yang jumlahnya sangat beragam. Sistem klasifikasi yang cukup sering digunakan di Indonesia  adalah  klasifikasi  Schmidt  –  Ferguson  dan  Oldeman.  Lokasi  dalam penelitian ini adalah Kabupaten Lampung tengah. Dalam penentuan tipe iklim Kabupaten Lampung Tengah didapatkan 2 tingkat kategori kesesuaian iklim Schmidt- Ferguson terhadap padi. Kategori Sangat Sesuai (SS) sebesar 68.087,22 ha dari 45,29% luas total lahan sawah dan untuk kategori Sesuai (S) sebesar 82.235,04 ha dari 54,71% luas total lahan sawah. Pada kesesuaian iklim Oldeman terhadap padi didapatkan  2  tingkat  kategori.  Luas  untuk  Kategori  Sangat  Sesuai  (SS) sebesar 146.097,48 ha dari 97,17% luas total lahan sawah dan untuk kategori Sesuai (S) sebesar 4.252,54 ha dari 2,83% luas total lahan sawah. Analisa kesesuaian padi dilakukan untuk mendapatkan zona agroklimat padi berdasarkan peta guna lahan sawah dan 5 faktor pembatas wilayah, yaitu: 1) Klasifikasi iklim oldeman, 2) Klasifikasi iklim Schmidt-Ferguson, 3) Suhu, 4) Kelembaban, dan 5) Kemiringan lereng. Ke-5 faktor tersebut akan di-overlay menggunakan Quantum GIS. Hasil dari analisa ini adalah bahwa Kabupaten Lampung Tengah didominasi kategori Sesuai (S) yang dimana baik untuk kegiatan pertanian terutama tanaman padi. Wilayah kabupaten lampung Tengah terdapat 3 kategori tingkat kesesuaian  terhadap tanaman padi. Pada kategori Sangat Sesuai (SS) sebesar 104.088,48 ha dari 69,21% luas total lahan sawah, untuk kategori Sesuai (S) sebesar 45.915,96 ha dari 30,53% luas total lahan sawah, dan kategori Tidak Sesuai (TS) sebesar 389,09 ha dari 0,25% luas total lahan sawah.
IMPLEMENTASI REFUGIA SEBAGAI TANAMAN UTAMA PADA PERANCANGAN LANSKAP TAMAN WISATA “WONGSOTIRTO AGRO PARK” KABUPATEN LAMPUNG SELATAN
Authors: Astuti Elisabeth Ivana Nancy , Widagdo Setyo , Sudiono Sudiono , Rugayah Rugayah
Published: August 2023

Wongsotirto Agro Park (WA Park) merupakan salah satu objek wisata yang berpotensi dikembangkan sebagai agrowisata yang menerapkan prinsip pertanian organik, salah satunya pengendalian hama hayati dengan tanaman refugia.  Refugia selain berfungsi sebagai habitat musuh alami hama juga memiliki fungsi untuk menambah estetika tapak.  Penelitian ini bertujuan untuk merancang implementasi refugia sebagai tanaman utama pada perancangan lanskap di Wongsotirto Agro Park (WA Park), Tanjung Bintang, Kabupaten Lampung Selatan dengan menggunakan metode perencanaan lanskap, yaitu inventarisasi, analisis, sintesis, konsep, dan desain.  Perancangan tanaman refugia sebagai tanaman utama pada tapak WA Park dapat mengoptimalkan fungsi estetika refugia sebagai soft material yang dekoratif untuk menciptakan suasana semarak, serta dapat memenuhi fungsi ekologi refugia sebagai mikrohabitat buatan yang berfungsi untuk menyediakan tempat hidup, makanan, dan inang alternatif bagi musuh alami hama di lahan budidaya sekitar tapak.  Implementasi refugia pada taman wisata WA Park dilakukan dengan penanaman refugia pada area taman buah, taman sayur, sawah organik, bedding plant area saung, island park, tanaman border, dan taman bunga untuk menciptakan kondisi tapak yang estetis dan fungsional.
PENGARUH LAMA PERENDAMAN BENIH DALAM LARUTAN CaCO3 TERHADAP PERTUMBUHAN BIBIT KAKAO (Theobroma cacao L.) PADA MEDIA TANAM YANG BERBEDA
Authors: Gaol Ericson Uli Lumban , Sugiatno Sugiatno , Edy Akari , Susanto Herry
Published: August 2023

Pulp kakao mengandung kadar air dan gula yang tinggi sehingga menjadi media perkembangbiakan bagi mikroorganisme.  Hal ini dapat mempengaruhi penurunan daya berkecambah benih dan mempercepat kerusakan benih.  Oleh karena itu dilakukan penelitian lama perendaman benih kakao dalam larutan CaCO3 sebagai bahan peluruh pulp pada benih dan dikombinasi dengan komposisi media tanam yang berbeda.  Penelitian bertujuan untuk mengetahui pengaruh lama perendaman benih dalam larutan CaCO3 dan komposisi media tanam yang berbeda terhadap pertumbuhan bibit kakao.  Penelitian dilakukan pada September hingga Desember 2020 di rumah plastik Desa Labuhan Dalam, Kecamatan Tanjung Senang, Bandar lampung dan Laboratorium Benih, Fakultas Pertanian, Universitas Lampung, Gedong Meneng, Bandar Lampung.  Penelitian menggunakan rancangan kelompok teracak sempurna (RKTS), pengelompokkan berdasarkan ukuran diameter buah.  Faktor pertama lama perendaman benih kakao dalam larutan CaCO3 yang terdiri atas tanpa perendaman, 30, 60, 120, dan 240 menit. Faktor kedua komposisi media tanam yang terdiri atas campuran arang sekam + pupuk kandang, pasir + pupuk kandang, dan pasir + arang sekam + pupuk kandang.  Homogenitas ragam diuji dengan uji Barlett, aditivitas data diuji dengan uji Tukey. Jika asumsi terpenuhi, data dianalisis ragam kemudian dilakukan uji Beda Nyata Terkecil (BNT) pada taraf 5%.  Hasil penelitian menunjukkan bahwa lama perendaman benih kakao dalam larutan CaCO3 tidak berpengaruh terhadap pertumbuhan bibit, komposisi media tanam  pasir + arang sekam + pupuk kandang memberikan hasil terbaik pada semua peubah yang diamati, dan tidak terjadi interaksi antara komposisi media tanam dan lama perendaman benih kakao terhadap pertumbuhan bibit.
PENGARUH GULUDAN DAN PEMUPUKAN TERHADAP KEHILANGAN UNSUR HARA DAN C-ORGANIK AKIBAT EROSI SERTA PRODUKSI SINGKONG (Manihot esculenta Crantz.) TAHUN KETUJUH DI LABORATORIUM LAPANG TERPADU FAKULTAS PERTANIAN UNIVERSITAS LAMPUNG
Authors: Nainggolan Andreas Februando , Banuwa Irwan Sukri , Buchari Henrie , Afandi Afandi , Aini Septi Nurul , Septiana Liska Mutiara
Published: August 2023

Erosi merupakan salah satu penyebab terjadinya degradasi lahan yang dapat menyebabkan hilangnya unsur hara dan bahan organik dari perakaran tanah. Hilangnya unsur hara dan bahan organik dari daerah perakaran tanah akan menimbulkan penurunan produksi tanaman. Pembuatan guludan dan pemberian pupuk merupakan upaya untuk mengurangi terjadinya erosi. Penelitian ini bertujuan untuk mengetahui pengaruh guludan dan pemupukan terhadap kehilangan unsur hara dan C-Organik akibat erosi serta produksi singkong. Penelitian tahun ketujuh ini dilaksanakan pada bulan Februari—Desember 2021 di Laboratorium Lapang Terpadu Fakultas Pertanian Universitas Lampung. Penelitian ini dirancang menggunakan rancangan acak kelompok lengkap dengan dua faktor perlakuan yaitu guludan dan pemupukan dengan empat kali ulangan. Hasil penelitian menunjukkan bahwa perlakuan guludan memotong lereng memberikan hasil yang lebih baik dalam mengurangi kehilangan unsur hara dan C-Organik dibandingkan guludan searah lereng, namun tidak mempengaruhi produksi singkong. Sebaliknya perlakuan pemberian pupuk menghasilkan produksi yang lebih tinggi dibandingkan tanpa pemberian pupuk, namun tidak berpengaruh pada kehilangan unsur hara dan C-Organik.
RESPONS TANAMAN KACANG HIJAU (Phaseolus radiatus L.) TERHADAP APLIKASI FUNGI MIKORIZA ARBUSKULAR (FMA) DAN DOSIS BAHAN ORGANIK YANG BERBEDA PADA TANAH ULTISOLS
Authors: Hidayat Kuswanta Futas , Husna Husna , Rini Maria Viva
Published: August 2023

Penelitian ini bertujuan untuk mengetahui respons tanaman kacang hijau terhadap aplikasi FMA, mengetahui respons tanaman kacang hijau terhadap aplikasi bahan organik dengan dosis berbeda, dan mengetahui apakah respons tanaman kacang hijau terhadap aplikasi FMA ditentukan oleh dosis bahan organik. Percobaan dilakukan di Laboratorium Lapang Terpadu Fakultas Pertanian Universitas Lampung dan Laboratorium Produksi Perkebunan Jurusan Agroteknologi Fakultas Pertanian Universitas Lampung dari bulan Agustus hingga November 2018. Rancangan perlakuan disusun secara faktorial (2x5) dalam rancangan kelompok teracak sempurna (RKTS) dengan tiga ulangan. Faktor pertama adalah aplikasi FMA yang terdiri dari dua taraf yaitu tanpa FMA (M0) dan dengan FMA (M1). Faktor kedua adalah dosis bahan organik yang terdiri dari lima taraf yaitu B0 (0 ton/ha), B1 (5 ton/ha), B2 (10 ton/ha), B3 (15 ton/ha), dan B4 (20 ton/ha). Homogenitas ragam antarperlakuan diuji dengan uji Bartlett dan kemenambahan data diuji dengan uji Tukey. Jika asumsi terpenuhi yaitu ragam antarperlakuan homogen dan data bersifat menambah maka data dianalisis ragam. Pemisahan nilai tengah diuji dengan uji polinomial ortogonal pada taraf 5%. Hasil penelitian menunjukkan bahwa aplikasi FMA meningkatkan pertumbuhan dan produksi kacang hijau lebih tinggi melalui peningkatan tinggi tanaman, jumlah cabang, bobot akar segar, bobot tajuk kering, bobot akar kering, jumlah bintil, jumlah bintil efektif, serapan P, bobot 50 butir biji, bobot biji per tanaman, dan persentase infeksi akar; aplikasi bahan organik hingga dosis 20 ton/ha mampu meningkatkan pertumbuhan dan produksi kacang hijau melalui variabel tinggi tanaman, jumlah cabang, bobot tajuk segar, bobot akar segar, jumlah bintil, jumlah bintil efektif, serapan P, bobot 50 butir biji, dan bobot biji per tanaman; dan respons tanaman kacang hijau terhadap aplikasi FMA tidak ditentukan oleh dosis bahan organik.
PENGARUH BATUAN FOSFAT ALAM YANG DIASIDULASI DENGAN LIMBAH CAIR TAHU PADA PERTUMBUHAN DAN PRODUKSI TANAMAN JAGUNG
Authors: Sanjaya Purba , Febriyanti Kartika Hikmahniar , Niswati Ainin , Sunyoto Sunyoto , Hidayat Kuswanta Futas
Published: August 2023

Pemupukan adalah kegiatan perawatan tanaman yang umumnya dilakukan untuk untuk meningkatkan ketersediaan unsur hara yang dibutuhkan oleh tanaman. Terdapat beberapa jenis unsur hara makro yang dibutuhkan oleh tanaman dalam jumlah banyak, salah satunya adalah fosfor. Secara umum, fosfor ditambahkan dalam bentuk pupuk TSP, NPK, atau SP36. Namun demikian, fosfor juga dapat ditambahkan melalui batuan fosfat yang tersedia dia alam.  Tujuan dari penelitian ini adalah untuk menentukan dosis terbaik batuan fosfat yang telah diasidulasi dengan limbah cair tahu untuk pertumbuhan dan produksi tanaman jagung. Penelitian ini dilakukan di lapangan percobaan BPTP Natar dan Laboratorium Ilmu Tanah Fakultas Pertanian Universitas Lampung mulai bulan Juni 2018 hingga September 2018. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) dengan 3 ulangan. Hasil penelitian menunjukkan bahwa dosis 350 kg ha-1 memberikan hasil terbaik untuk bobot biji jagung kering sebesar 3,37 kg per petak, dibandingkan dengan perlakuan tanpa pupuk sebesar 2,15 kg per petak. Terdapat korelasi positif yang signifikan antara serapan fosfor dan bobot per petak. Artinya, semakin tinggi serapan fosfor, semakin meningkat bobot tangkai kering dan bobot biji jagung pada pertanaman tersebut.
REKOMENDASI PEMUPUKAN N, P, K SPESIFIK LOKASI UNTUK TANAMAN LADA BERDASARKAN STATUS HARA DI KABUPATEN PIDIE PROPINSI ACEH
Authors: Yusra Yusra , Khusrizal Khusrizal , Nasruddin Nasruddin , Muliana Muliana , Saputra Dika
Published: August 2023

Kabupaten Pidie salah satu kawasan di Provinsi Aceh yang memberikan kontribusi terhadap tanaman lada. Sejak tahun 2019, produksi lada di kabupaten ini semakin menurun dari 27 ton dengan luas lahan 143 ha dengan produktifitas 189 kg/ha menjadi 19 ton dengan luas lahan 147 ha dengan produktifitas 129,25 kg/ha pada tahun 2020, dan turun lagi menjadi 13 ton dengan luas lahan yang meningkat yaitu 162 ha dengan produktifitas 80,25 kg/ha pada tahun 2021.Mengingat potensi pengembangan lada di Kabupaten Pidie masih sangat menjanjikan, perlunya dilakukan identifikasi kadar hara tanah dan tanaman lada, sehingga menjadi dasar  penentuan dosis pupuk N, P, K spesifik lokasi. Penelitian ini bertujuan untuk mengidentikfikasikan kadar hara tanah dan tanaman sebagai dasar rekomendasi pupuk N, P, K spesifik lokasi. Metode yang digunakan dalam penelitian ini adalah dengan pengambilan sampel tanah dan jaringan tanaman pada lahan lada petani di Kecamatan Padang Tiji, Gelumpang Tiga dan Titeue Kabupaten Pidie Propinsi Aceh. Sampel tanah dianalisis N-total, P-tersedia dan K-dd, sedangkan sampel tanaman untuk analisis N, P dan K. Hasil penelitian menunjukkan  bahwa kandungan N-total, P tersedia dan K-dd tanah di Kecamatan Padang Tiji, Gelumpang Tiga dan Titeue Kabupaten Pidie berkisar dari 0,19 - 0,29 % (rendah - sedang), 0,95 – 2,91 ppm (sangat rendah), 0,13 – 0,28 me/100g (rendah), sedangkan kandungan hara N, P dan Ktanaman masing - masing berkisar dari 1,45 – 2,21 % (rendah - optimum), 0,07 – 0,20 % (rendah – optimum) dan 0,50 – 0,69 % (rendah). Rekomendasi pupuk untuk tanaman lada di Kecamatan Padang Tiji  Urea (203,70 – 294,15 kg/ha), SP-36 (374,61 – 436,99 kg/ha) dan KCl (tidak perlu penambahan), Kecamatan Gelumpang Tiga Urea (168,91 – 293,46 kg/ha), SP-36 (374,69 – 432,92 kg/ha) dan KCl (tidak perlu penambahan), Kecamatan Titeue   Urea (212,39 – 293,87 kg/ha), SP-36 (428,83 – 441,67kg/ha) dan KCl (176,33 – 379,68 kg/ha).
PENGARUH PENGOLAHAN TANAH DAN PEMUPUKAN TERHADAP POPULASI DAN BIOMASSA CACING TANAH PADA TANAMAN JAGUNG (Zea mays) MUSIM KE-5
Authors: Pratiwi Thesya , Yusnaini Sri , Lumbanraja Jamalam , Dermiyati Dermiyati
Published: August 2023

Kegiatan pengolahan tanah yang dilakukan petani saat ini kurang memperhatikan keberlanjutannya, sehingga banyak lahan yang terdegradasi.  Pengolahan tanah secara berlebih dapat menyebabkan struktur tanah berubah dan kandungan bahan organik menurun.  Untuk itu perlu dilakukan perbaikan lahan dengan menerapkan sistem pengolahan tanah konservasi diantaranya olah tanah minimum (OTM) dan tanpa olah tanah (TOT).  Penelitian ini bertujuan untuk 1) mempelajari pengaruh penerapan sistem olah tanah terhadap populasi dan biomassa cacing tanah, 2) mempelajari pengaruh pemupukan terhadap populasi dan bimassa cacing tanah 3) mempelajari pengaruh interaksi antara sistem olah tanah dan aplikasi pemupukan terhadap populasi dan biomassa cacing tanah.  Perlakuan yang diterapkan terdiri dari 2 faktor yaitu sistem olah tanah (T) dan pemupukan (P).  Sistem olah tanah terdiri dari olah tanah minimum (T0) dan olah tanah intensif (T1).  Sedangkan aplikasi pupuk terdiri dari tanpa pupuk (P0), dengan pupuk (P1).Penelitian dilaksanakan pada bulan Desember sampai dengan April 2020 di Laboratorium Lapang Terpadu Fakultas Pertanian, Universitas Lampung.  Hasil penelitian menunjukkan bahwa olah tanah berpengaruh nyata terhadap populasi dan biomassa cacing tanah pada pengamatan 40 hari setelah tanam (HST) dan 90 HST di kedalaman 0-10 cm.  Hasil penelitian menunjukkan bahwa olah tanah berpengaruh nyata terhadap total biomassa cacing tanah pada 40 HST dan 90 HST.  Terdapat korelasi positif antara kadar air tanah dengan populasi cacing tanah pada pengamatan 40 HST dan biomassa cacing tanah pada pengamatan 40 HST dan 90 HST.  Sedangkan C-organik berkorelasi nyata dengan populasi dan biomassa cacing tanah pada pengamatan 40 HST.
PENGARUH MASA SIMPAN PUPUK HAYATI BERISI ISOLAT BAKTERI TERPILIH DARI RIMPANG NANAS DAN TANDAN KOSONG KELAPA SAWIT TERHADAP PERTUMBUHAN DAN PRODUKSI TANAMAN MENTIMUN (Cucumis sativus L.)
Authors: Amir Fakhri , Dermiyati Dermiyati , Ratih Suskandini , Arif Syamsul
Published: August 2023

Penelitian ini bertujuan untuk mengetahui masa penyimpanan pupuk hayati untuk menentukan kemampuan isolat bakteri bertahan hidup dan mengetahui pengaruh isolat bakteri terpilih asal rimpang nanas, tandan kosong kelapa sawit, dan isolat bakteri terpilih gabungan serta interaksi kedua perlakuan terhadap pertumbuhan dan produksi tanaman mentimun.  Rancangan penelitian ini menggunakan Rancangan Acak Kelompok (RAK) yang disusun secara faktorial 6x4 dengan 3 ulangan.  Faktor yang pertama adalah masa simpan pupuk hayati selama 6 bulan penyimpanan. Faktor kedua tanpa isolat bakteri, isolat bakteri terpilih asal rimpang nanas (RN) dengan kerapatan awal 3,63x108 CFU mL-1, tandan kosong kelapa sawit (TKKS) dengan kerapatan awal 4,27x108 CFU mL-1, dan isolat bakteri terpilih gabungan (RN+TKKS).  Hasil penelitian menunjukkan masa simpan tidak berpengaruh nyata, namun pemberian isolat bakteri terpilih berpengaruh nyata terhadap panjang tanaman, bobot basah brangkasan, bobot kering brangkasan, bobot buah dan diameter buah.  Panjang tanama yang diberi  isolat bakteri RN dan TKKS lebih tinggi dibandingkan gabungan (RN+TKKS), namun tidak berbeda dibandingkan dengan tanpa isolat bakteri. Pada bobot kering brangkasan isolat bakteri terpilih RN lebih tinggi dibandingkan TKKS, dan gabungan, namun tidak berbeda dibandingkan dengan tanpa isolat bakteri. Interaksi antara isolat bakteri RN dan masa simpan 4 bulan memiliki bobot basah brangkasan tanaman mentimun lebih tinggi dibandingkan jenis isolat lainnya dan tanpa isolat bakteri.
Chemical Constituent of Acacia auriculiformis Wood Extractives and Their Antioxidant Activity
Authors: Prayogo Yanico Hadi , Batubara Irmanida , Sari Rita Kartika , Egra Saat , Yamauchi Kosei , Mitsunaga Tohru , Syafii Wasrin
Published: August 2023

Acacia auriculiformis showed good potential to be developed as a raw material for bioactive compounds. The heartwood of A. auriculiformis is still rarely explored. The purpose of this study was to identify the bioactive components of the heartwood. Six compounds were identified from the heartwood through nuclear magnetic resonance and mass spectroscopy, namely the C-3,4',7,8 hydroxyl substituted flavonoids and chalcone. Two methylated teracacidins and chalcone-like teracacidin were identified for the first time in the A. auriculiformis heartwood, along with three known compounds. These compounds showed good radical scavenging and reduction activity, compared to crude extract and ascorbic acid, using three different antioxidant assays. The molecular structure-dependent activity was observed to affect the trend of the different antioxidant activities. This finding shows good potential for further development of plant parts of A. auriculiformis from Indonesia as new raw materials for medicines.
Keywords: Acacia auriculiformis, antioxidant, chalcone, flavonoid, heartwood
Análisis exploratorio de la Escala de Actitudes hacia el Amor Hendrick & Hendrick en estudiantes de una universidad privada de Arequipa
Authors: Arias Gallegos Walter , Zevallos Canaza Carla
Published: August 2023

En esta investigación de corte psicométrico pretende valorar la validez y la confiabilidad de la Escala de Actitudes hacia el Amor de Hendrick y Hendrick, en un amuestra de 106 estudiantes universitarios de la carrea de Psicología de una universidad privada de la ciudad de Arequipa (Perú). Se trata de un estudio preliminar y exploratorio que sigue los criterios de la teoría clásica de los tests y la teoría factorial. Los resultados indican que la prueba tiene una estructura de tres factores que explica el 38,64% de la varianza total. Se eliminaron 29 ítems y solo se mantuvieron tres estilos de amor: Storge, Manía y Ágape, que obtuvieron índices de confiabilidad adecuados.
Efectos del programa “Chabuca Granda en la escuela” en el fortalecimiento de la identidad cultural en adolescentes de educación secundaria.
Authors: Arévalo Cárdenas Charles Anyhony
Published: August 2023

El objetivo de la investigación fue evaluar la eficacia del programa educativo "Chabuca Granda en la Escuela" en el desarrollo de la identidad cultural en adolescentes escolares del distrito de San Martín de Porras de Lima Perú. Se utilizo un enfoque cuantitativo de diseño cuasi experimental, la muestra fue no aleatoria de 52 estudiantes, pertenecientes del VI ciclo de educación básica regular del nivel secundaria. La muestra se dividió en un grupo control y experimental de 26 estudiantes. Se aplicó el pre test Escala de Identidad Cultural a ambos grupos.  Se aplico al grupo   experimental el “programa Chabuca Granda en la escuela, el cual consistió de 12 sesiones relacionadas con la obra de la cantautora mientras q el grupo control no se sometió a dicho programa. Al término de la intervención se les aplico el mismo instrumento a ambos grupos. Los resultados evidenciaron un incremento significativo en fortalecimiento de la identidad cultural de los estudiantes del grupo experimental en las dimensiones: costumbres, tradiciones, interculturalidad, modo de vida y valoración de la obra de Chabuca Granda. Se recomienda aplicar el programa educativo en otros niveles educativos para   el afianzamiento de la identidad cultural.
Usporedba učinkovitosti različitih vrsta zaštitnih maski u smanjenju prijenosa virusa SARS-CoV-2
Authors: Kovačević Irena , Papić Ivona , Ozimec Vulinec Štefanija , Kovačević Čorak Karla , Hošnjak Ana Marija , Krikšić Valentina
Published: August 2023

Introduction. Protective equipment has become globally used to protect against respiratory infections in healthcare workers and sick patients. With the emergence of the SARS-CoV-2 virus and the global pandemic, the role of protective masks in reducing the transmission of the new virus has become the subject of much research. Although the protective mask has a significant role in reducing the transmission of infections, wearing it also has certain adverse effects. Aim. The aim of this review is to show the effectiveness of different types of protective masks in reducing the transmission of the SARS-CoV-2 virus, as well as the comparison of adverse effects when wearing protective masks. Methods. The method for analyzing the topic of the effectiveness of protective masks included reviews of papers found on the Google search engine, Medline database (via PubMed) and Hrcak. Included in the analysis are scientific papers with clinical trials or review papers, in English and Croatian, regardless of methodology, published since 2020. Included works include topics such as medical masks, respirators, cloth masks and their materials, effectiveness and importance of use, and adverse effects of wearing protective masks. A total of 2,110 articles, original and review papers were found, of which, after a detailed reading and analysis of several authors, 11 were selected that meet the eligibility criteria of this review paper.Results. There are filter half-masks with/without valve, surgical masks and hygienic or cloth masks. A surgical mask may provide better protection than a cloth mask, although this may depend on the layers and material the masks are made of. Respirator masks are somewhat more effective than surgical masks, but the difference turned out to be insignificant. The most common side effects of wearing masks for a long time are increased secretion of sputum, cough, dyspnea, difficulty when communicating, lack of closeness and feelings of insecurity. Conclusion. A face mask protects against infection and is associated with a reduced risk of infection. The habit of wearing a mask and the correct way of wearing it proved to be important factors in reducing the risk of infection.
Passive Quantitative Easing: Bond Supply Effects through a Halt to Debt Issuance
Authors:   Federal Reserve Bank of San Francisco, Christensen Jens H. E. , Hetland Simon Thinggaard ,   Danish National Bank
Published: August 2023

This article presents empirical evidence of a supply-induced transmission channel to longterm interest rates caused by a halt to government debt issuance. This is conceptually equivalent to a central bank operated asset purchase program, commonly known as quantitative easing (QE). However, as it involves neither asset purchases nor associated creation of central bank reserves, we refer to it as passive QE. For evidence, we analyze the response of Danish government bond risk premia to a temporary halt in government debt issuance announced by the Danish National Bank. The data suggest that declines in longterm yields during its enforcement reflected both reduced term premia, consistent with supply-induced portfolio balance effects, and increased safety premia, consistent with safe assets scarcity effects.
Sociología de las religiones: una aproximación desde los manuales de la disciplina
Authors: Ruiz Andrés Rafael
Published: August 2023

A partir de una selección de manuales de sociología de las religiones publicados en las últimas décadas, la presente nota de investigación explora las claves analíticas y los paradigmas de la disciplina en la actualidad. El debate sobre la secularización, las problemáticas en torno al concepto ‘religión’ y la emergencia de nuevas pers­pectivas constituyen los tres ejes a partir de los que exploraremos las ideas fundamentales de los manuales seleccionados. La necesidad de definición del fenómeno religioso a partir de la expe­riencia vivida y cotidiana y la reducción a mínimos de las categorías de estudio constituyen dos de los consensos básicos entre las distintas perspectivas de sociología de las religiones, cuyo debate continúa girando esencialmente en torno al cuestionamiento sobre la secularización.
Hacia una sociología visual Epistemologías y experiencias con la fotografía en México
Authors: Moncrieff Zabaleta Henry , Espinoza Nieto Lucía
Published: August 2023

El siguiente artículo destaca la importancia epistemológica y metodológica de la sociología visual. Se explica el “hecho social-visual” como dispositivo teórico y técnico que funciona a través de la reflexividad, el sentido y la experiencia social de quienes tienen el “poder de ver” y en donde recaen sus miradas; en otras palabras, el mundo social y perceptivo de quienes son “vistos”. Se desentraña así un conocimiento sociológico de cómo se puede mirar y ser mirado. Recuperamos nuestras investigaciones, donde la fotografía funge como plataforma de interacción visual, la primera sobre el impacto de la reclusión en el ámbito doméstico y la segunda sobre la escenificación de jóvenes precarizados más allá de la porno-violencia.
Programa bebê precioso
Authors: Mucha Fátima , Blume Luziane Bombazar , Cemin Juliana , Duca Ana Paula , Santos Rosane Sampaio
Published: August 2023

Objetivo: Descrever os indicadores de risco para o desenvolvimento em bebês de um Programa de acompanhamento neuropsicomotor. Métodos:  Estudo retrospectivo, descritivo, com análise quantitativa e correlação dos critérios de riscos de crianças egressas da Unidade de Tratamento Intensivo Neonatal de Joinville-SC, no período de 2009 a 2019. Resultados: No total de 1044 prontuários, 48,7%, com idade gestacional menor ou igual a 33 semanas, 35,9% ventilação mecânica, 33% malformação congênita e 32,4% peso menor ou igual a 1500 gramas. A idade gestacional e o peso ao nascer foram associados a ventilação mecânica, malformação, apneia e hemorragia. E a idade menor ou igual a 33 semanas apresentou maior associações a infecção grave, meningite neonatal, síndrome hipóxico isquêmica (p=0,00).  Conclusão: A prematuridade e baixo peso ao nascer estiveram associados a diferentes fatores de risco e devem ser monitorados em bebês, visando melhoria no cuidado e atenção a saúde e desenvolvimento integral da criança.
Palavras-chave: Recém-nascido prematuro; Desenvolvimento infantil; Atenção Primária à Saúde; Fatores de risco.
Final Report: The Presidential Advisory Commission on the Future of Agriculture & Food Production in a Drying Climate
Authors: Condon L.E. , Ruiz J. , Antin P. , Buizer J. , Collinge S. , Esquerra N.L. , Ikner L.A. , Megdal S.B. , Patten K.J.
Published: August 2023

Located in one of the most arid portions of the country, Arizona’s food production systems are increasingly threatened by drying climate, and there is growing concern that this trend poses an existential threat to food production in Arizona. In response to this urgent issue, UArizona President Dr. Robert C. Robbins created the Presidential Advisory Commission on the Future of Agriculture & Food Production in a Drying Climate. The Commission was tasked with assessing critical threats to agriculture and food production, identifying the most promising solutions, and determining how UArizona can best impact the future. This report reflects the Commission’s study and information gathering through listening sessions and surveys of community members across the University and the state of Arizona.
First Report of Meloidogyne javanica Infecting Strawberry (Fragaria × ananassa) in the United States
Authors: Oliveira Clemen J. , Riva Gabrieli , Brito Janete A. , Xue Ruimim , Desaeger Johan A.
Published: August 2023

Strawberry (Fragaria × ananassa) is native to temperate regions. However, it has been produced in tropical areas, as a seasonal crop including in Florida, USA during the winter months. In March 2022, root galls resembling those induced by root-knot nematodes (Meloidogyne spp.) were observed in declining strawberry plants ‘WinterstarTM FL 05-107’ growing in an organic-certified research site in Hillsborough County, Florida, USA. To our knowledge, M. hapla is the only root-knot species reported to infect strawberry in Florida. Preliminary molecular analyses, including newly synthesized DNA sequences (TW81/AB28 = OQ469833 - OQ469836; D2A/D3B= OQ473043 - OQ473047) using extracted nematode females from the strawberry roots, initially identified the RKN as M. javanica. Nematode species confirmation was further performed using the morphology of the female perineal patterns and isozyme analysis, mainly esterase (EST) and malate dehydrogenase (MDH), DNA sequencing, (NAD5-F/NAD5-R) and the SCAR primer set (Fjav/Rjav), species-specific for M. javanica. Isozyme analyses, EST= J3, which is specific for M. javanica and MDH=N1, as well as the morphology of female perineal patterns, agreed with data previously reported for M. javanica. A pathogenicity test on strawberry ‘WinterstarTM FL 05-107’ transplants was performed using 10,000 eggs of the original M. javanica population, which induced galls on strawberry plants (Gall index, GI = 4.1) with egg masses clearly visible outside of the roots, producing an average of 1,344 eggs/gram of fresh root and 9,201 ± 4,206 eggs/root system. No galls or egg masses were observed on non-inoculated plants. Tomato ‘HM 1823’ was used as a control for the viability of the inoculum and showed numerous galls and egg masses (GI=5.0;).

The newly obtained DNA sequences using NAD5-F/NAD5-R (OQ474970 – OQ474972) were compared with other sequences available in the GenBank and were shown to be 100% identical to five M. javanica populations from Polk County, Florida, USA (OM418745 – OM418749) and the complete mitochondrion genome of M. javanica (NC026556). To our knowledge, this is the first report of M. javanica infecting strawberry in the United States.
The The Challenge of Using the Transcendental Principle in the Law of Marriage in Indonesia
Authors: Sanjaya Umar Haris , Rohidin Rohidin , Ummah Karimatul
Published: August 2023

Marriage law in Indonesia is a law based on God. This divine basis is applied in Article 1 of Law Number 1 of 1974 on Marriage that marital relations are based on the belief in the One and Only God. In practice, this is overlooked when it comes to law enforcement in court applications. The waiver has the potential to occur if it is related to interfaith marriages/marriages between religions and beliefs in court, lack of public knowledge, or is considered a violation of the right to marry. Remembering that marriage is one's privacy. This article aims to analyze the transcendental principle in Law Number 1 of 1974 on Marriage and to elaborate the enforcement of the transcendental principle in court. This article uses the methodology juridical and normative research, which means that research is using principle of law and doctrine to answer the legal issues. This results show that the practice of transcendental principle is the nature of God Almighty, so every marriage must be based on this principle. Another finding, there are attempts to change this principle through judicial review but are always rejected by the court in Constitutional Court. Transcendental principle has not been able to answer the needs of each society individually. It is because there are still people who ignore this principle.
Efektivitas Proses Mediasi Dalam Perkara Perceraian Di Pengadilan Agama Jakarta Timur
Authors: Litti Nur Lina Afifah , Sina Gula Rajiv Nazry Faizullah , Ray M. Hapis , Fahrurazi Fahrurazi , Bariyah Oneng Nurul , Rohmah Siti
Published: August 2023

Reconciling parties who are litigating in Court is not an easy matter. This can be caused by the lack of availability of legal institutions that can assist parties in choosing the right method for dispute resolution, the lack of public understanding of the importance of implementing mediation in the Religious Courts, and the concept of hakam (peacemaker) which has not been applied by the Court. The purpose of this study was to determine the effectiveness of the mediation process in divorce cases at the East Jakarta Religious Court. The method used in this research is qualitative. While the approach used is descriptive- analysis. By systematically describing the facts and characteristics of the object and subject under study precisely. The data collection technique uses direct observation to the object of research to see up close in order to obtain information about the situation and conditions of the East Jakarta Religious Court, then interviewing Judges and Mediators, and finally Documentation. The results showed that the effectiveness of the mediation process in divorce cases at the East Jakarta Religious Court was still ineffective. From the data obtained, the number of cases that have been successfully mediated in the past 3 years is less than 15%.
Malleable versus inflatable penile prosthesis: systematic review
Authors: Alamri Husam , Alsharyoufi Muayad , Alkhathami Faisal , Alsayed Raghad , Alzaidy Asma , Albejawi Abdulrahman , Allam Ammar , Alqubali Sultan
Published: August 2023

Erectile dysfunction (ED) is a prevalent condition affecting quality of life. Penile prostheses are effective for non-responsive cases, with malleable and inflatable types commonly used. Yet, a thorough comparison between them is absent. This systematic review aims to evaluate and compare malleable and inflatable penile prostheses in terms of efficacy, complications, patient satisfaction, and quality of life outcomes. A systematic search was conducted on PubMed, Embase, and Cochrane Library databases for relevant studies published between 2010 and 2022. Studies meeting predefined inclusion and exclusion criteria were selected, and their methodological quality was assessed. Data on surgical success rates, postoperative complications, patient satisfaction, sexual function, and quality of life were extracted and synthesized. A total of 40 studies were included in the review. Analysis of surgical success rates revealed comparable outcomes between malleable and inflatable penile prostheses. Postoperative complications varied, with malleable prostheses associated with lower rates of infection and mechanical failure compared to inflatable prostheses. Patient satisfaction was high for both types of prostheses, although some studies reported higher satisfaction rates with inflatable devices. Sexual function improvements were observed in both groups, but malleable prostheses had a shorter operative time and fewer device-related adverse events. Quality of life outcomes showed positive changes in psychosocial aspects for patients with both types of prostheses. This systematic review provides a comprehensive evaluation of malleable and inflatable penile prostheses for the treatment of ED. Although both prosthesis types effectively address ED, malleable ones show potential benefits: reduced infection/mechanical issues, quicker surgery, and fewer device-related problems. Yet, patient satisfaction leans toward inflatables, highlighting personal preferences in choices. Future research should probe lasting results and patient input to aid optimal prosthesis selection.
COMPARATIVE ANALYSIS OF FINANCIAL PERFORMANCE BEFORE AND DURING COVID-19 PANDEMIC
Authors: Surya Kelly , Suhendah Rousilita
Published: August 2023

Many industries around the world are impacted by COVID-19 pandemic. In this research, we aim to examine the impact of COVID-19 pandemic to firms’ financial performance by analyzing whether there is significant difference between firms’ profitability, liquidity, solvency, and activity before and during COVID-19 pandemic. This study uses purposive sampling method which resulted in 105 companies from food and beverages, telecommunication, transportation, tourism, restaurant, and hotel subsectors listed in Indonesia Stock Exchange from 2019 to 2020. We first divide the data into two period, 2019 for the period before COVID-19 pandemic and 2020 for the period during COVID-19 pandemic. Then, we uses paired samples t-test and Wilcoxon signedrank test for hypothesis testing. The data is processed using IBM SPSS Statistics 26. The results indicate that the profitability and activity of food and beverages companies differ significantly, while liquidity and solvency do not. The solvency of telecommunication companies differs significantly, while profitability, liquidity, and activity do not. The profitability, solvency, and activity of transportation companies differ significantly, while liquidity does not. The profitability, liquidity, solvency, and activity of tourism, restaurant, and hotel companies differ significantly.
DETERMINANTS OF CASH HOLDINGS MODERATED BY FIRM SIZE
Authors: Wirianata Henny , Viriany Viriany
Published: August 2023

The study was conducted on manufacturing companies registered in IDX in 2017-2019 with purposive sampling method. Data is processed and analyzed with Eviews 10. The analytical models used are multiple regression analysis and moderation regression analysis. Data and analysis results show profitability and firm size have no significant effect on determining the amount of cash holdings. Meanwhile, liquidity and net working capital have a significant effect. The results of moderation tests show that firm size is able to moderate the influence of profitability and liquidity on the determination of the amount of cash holdings. Meanwhile, firm size cannot moderate the influence between net working capital and the determination of the amount of cash holdings in.
THE EFFECT OF WORKING CAPITAL MANAGEMENT ON COMPANY FINANCIAL PERFORMANCE
Authors: Rorlen Rorlen , Siswanto Halim Putera , Ekadjaja Margarita , Krisnaputra Ariel
Published: August 2023

The purpose of this study is to determine the effect of the company's efforts to manage working capital in improving the company financial performance. One way to operate the company's working capital properly, is by implementing the cash conversion cycle. Cash conversion cycle is a cycle of cash flow in the company which is measured by using the ratios of the Average Collection Period, Inventory Turnover, and Average Payment Period, and indirectly has an influence on the profitability of the company. The research subjects are retail companies listed on Indonesia Stock Exchange (IDX) between 2017-2020. Using double regression analysis with the EViews application, the result was obtained that the Average Collection Period (ACP) has a positive but not significant effect on financial performance. Different results were obtained from the variables of Average Payment Period (APP) and Inventory Collection Period (ICP), in which each of them has a significant and negative effect on financial performance of the company.
THE ROLE OF MANAGERIAL OWNERSHIP AS MODERATION ON FACTORS AFFECTING DEBT POLICY IN COMPANIES WITH LARGE MARKET CAPITALIZATION IN INDONESIA
Authors: Windy Windy , Lukman Hendro
Published: August 2023

the goal of this study was to gather empirical evidence of the effect of Profitability, Dividend Policy, and Collateral Assets on Debt Policy with Managerial Ownership as a moderating variable. This research relies on secondary data from the Indonesia Stock Exchange (IDX). The population used in this study are companies with large capitalization values that are included in the LQ45 index in the 2016-2020 period. Sampling in this study used purposive sampling method, and the data that met the criteria were 70 data which were processed using Statistical Package for the Social Sciences (SPSS) vers 25.0. Partially, Profitability and Collateral Assets have a significant impact on Debt Policy, while Dividend Policy has no significant effect on Debt Policy. Managerial Ownership unable to moderate the effect of Profitability, Dividend Policy and Collateral Assets on Debt Policy. The implication of this research is that companies with large capitalization of managerial ownership should play a greater role in determining debt policy by maintaining the level of profitability and collateral assets.
BUILDING THE REPUTATION OF PRIVATE UNIVERSITIES BASED ON LECTURER AND STUDENT RESEARCH PERFORMANCE
Authors: Anggarina Paula Tjatoerwidya , Irawan Agustinus Purna , Dewi Fransisca Iriani Roesmala , Devotyasto Mario
Published: August 2023

A good reputation is one of the important things in building the trust of all stakeholders in private universities. High level of trust from the community will have a positive impact on the operations of universities, especially for sustainability in the present and in the future. One of the important factors that need to be considered in building a reputation is the publication of research performance of lecturers and students through trusted media. This paper discusses how the reputation of universities is built through published works, both by lecturers and students individually and in the publication team. The method of discussion uses descriptive analysis accompanied by several case studies of the reputation building process. Based on this discussion, information and various steps needed to build a sustainable reputation through the performance of publications that are beneficial to the wider community can be concluded. Sustainable publications with high quality have a positive impact on the reputation of accreditation performance and university rankings which are one of the main factors to gain public trust.
ANALYSIS AND STRATEGY FOR PROVIDING CLEAN WATER TO THE SURROUNDING COMMUNITY IN THE MUARA ANGKE AREA
Authors: Wijaya Septihani Michella , Putri Angely Olivia , Wijaya Andi
Published: August 2023

The environment provides a number for humans, one of which is providing clean water that can meet human needs. Earth as a place for human life provides 97.5 percent of water and the rest is land for living. Of the 97.5 percent figure, only 2.5 percent of the water has quality for human consumption. This means that the availability of clean water consumed by humans is very limited. In addition to this, there are many other factors that cause the availability of clean water to dwindle. For this reason, efforts are needed to reduce the clean water crisis. Researchers have formulated several strategies to address clean water in the Muara Angke area. Suggested strategic programs: Educate to increase awareness about clean water aims to provide the community with the importance of keeping the environment clean to help reduce and prevent the scarcity of clean water in the community, Ultrafiltration Technology which creates and provides water suitable for use for various daily household activities -days, Reverse Osmosis System to improve water quality with a reverse osmosis system, namely water filtration processing to neutralize tastes, odors and harmful substances, Pipeline systems related to the distribution of clean water to be distributed to every community settlement, Collaboration with Air Si Biru to obtain facilities and access to drinking water from Si Biru more easily and at a more affordable price, Integrated Marketing Communication which educates the message that the importance of clean water and the condition of clean water is limited in its availability in several areas of Indonesia waste, and CSR which will improve water quality which will later be processed into water that will be used by the community.
FACTORS THAT AFFECT FIRM VALUE IN MANUFACTURING FIRMS
Authors: Kurniawan Rhenaldi Natanael , Susanti Merry
Published: August 2023

This research aims to obtain empirical evidence from the effect of profitability, leverage, liquidity, firm size, and activity ratio on firm value. Totals of 198 observational data originated from 66 manufacturing companies listed on Indonesia Stock Exchange (IDX) throughout 2018-2020. The sampling technique used in this research is purposive sampling. The hypothesis testing method in this research uses the multiple linear regression model. The multiple linear regression model estimation that suits this research is Fixed Effect Model (FEM). The statistical tool used for data processing in this research is EViews 12. This research uses Tobin's Q as a parameter to measure firm value. Based on the outcome of the processed data, profitability, leverage, and firm size all have significant effects on firm value, while liquidity and activity ratio both have insignificant effect on firm value.