Judul: Test of the Effectiveness of Thermal Hydrolysis of  Pineapple (Ananas comosus L. Merr.) Waste for Insecticide Substitution in  Controlling Mealybugs (Dysmicoccus brevipes).
Abstrak: M.AZIZ IZZATULLAH. Uji Efektivitas Hidrolisis Termal Limbah Nanas (Ananas comosus L. Merr.) untuk Subtitusi Insektisida dalam Pengendalian Kutu Putih (Dysmicoccus brevipes). Dibimbing oleh HERDHATA AGUSTA dan DHIKA PRITA HAPSARI. Produksi nanas yang tinggi selain menghasilkan keuntungan yang besar namun juga menghasilkan limbah yang tinggi, limbah tersebut dapat memberi efek negatif terhadap lingkungan kita. Peningkatan produksi nanas dapat dipicu dengan pemeliharaan yang baik mulai dari pengairan, pemberian fungisida, herbisida dan insektisida. insektisida biasa digunakan untuk menangani hama yang menurunkan produktivitas panen. Penelitian ini bertujuan untuk menganalisis efektivitas insektisida dari ekstrak limbah nanas terhadap hama kutu putih. Percobaan dilaksanakan di PT Great Giant Pineapple (GGP). Kecamatan Terbanggi Besar, Kabupaten Lampung Tengah, Lampung, Indonesia. Penelitian disusun dengan menggunakan Rancangan Kelompok Lengkap Teracak (RKLT) Tersarang satu faktor. Perlakuan dibagi menjadi 8 kombinasi perlakuan konsentrasi limbah nanas atau hidrolisat (H), asap cair (A), dan Standar (S). Yaitu 0% (kontrol), standar, 80%S+20%H, 60%S + 40%H, 80%S +2 0%A, 60%S + 40%A, 80%S + 10%H + 10%A, 60%S + 200%H + 20%A. Setiap perlakuan diulang sebanyak 20 kali sehingga terdapat 140 satuan unit percobaan pada uji insektisida nabati. Pengaplikasian insektisida nabati berbahan baku limbah bromelain nanas, berpengaruh nyata pada tinggi tanaman, lebar daun, dan kematian kutu putih dan tidak berpengaruh nyata terhadap panjang daun. Larutan kombinasi insektisida nabati menyebabkan kematian hama kutu putih (mealybug) sebesar 100% setelah hari ke-3 dan hari ke 6, baik pada substitusi aplikasi pestisida sintetik sebesar 20% maupun 40%. Hidrolisat tersebut mampu menggantikan kebutuhan sintetik standar hingga 20% bahkan 40% untuk pengendalian kutu putih nanas pada crown nanas Kata kunci: asap cair, crown, kematian, M. AZIZ IZZATULLAH. Test of the Effectiveness of Thermal Hydrolysis of Pineapple (Ananas comosus L. Merr.) Waste for Insecticide Substitution in Controlling Mealybugs (Dysmicoccus brevipes). Supervised by HERDHATA AGUSTA and DHIKA PRITA HAPSARI. High pineapple production not only produces large profits but also produces high levels of waste, this waste can have a negative effect on our environment. Increasing pineapple production can be triggered by good maintenance starting from irrigation, applying fungicides, herbicides and insecticides. Insecticides are commonly used to treat pests that reduce crop productivity. This research aims to analyze the effectiveness of insecticides from pineapple waste extract against mealybug pests. The experiment will be carried out at PT Great Giant Pineapple (GGP). Terbanggi Besar District, Central Lampung Regency, Lampung, Indonesia. The research was structured using a Randomized Complete Group Design (RKLT) nested on one factor. The treatments were divided into 8 treatment combinations of pineapple waste concentration or hydrolyzate (H), liquid smoke (A), and Standard (S). Namely 0% (control), standard, 80%S+20%H, 60%S + 40%H, 80%S +2 0%A, 60%S + 40%A, 80%S + 10%H + 10%A, 60%S + 200%H + 20%A. Each treatment was repeated 20 times so that there were 140 experimental units in the vegetable insecticide test. The application of a botanical insecticide made from pineapple bromelain waste had a significant effect on plant height, leaf width and mealybug death and had no significant effect on leaf length. The combination solution of vegetable insecticides caused 100% death of mealybugs after day 3 and day 6, both at 20%
Keyword: asap cair, crown, kematian

Judul: The Effectiveness of Biofertilizer Dosage on the Growth of Pineapple Plants (Ananas Comosus L.Merr) in the Vegetative Phase
Abstrak: Tanaman nanas merupakan komoditas unggulan di Indonesia, produksi tertinggi berada di Provinsi Lampung. Penggunaan pupuk anorganik di Lampung sangat tinggi hal ini disebabkan karena tingkat kesuburan tanah yang rendah. Penggunaan pupuk anorganik dapat memberikan dampak buruk pada kesehatan tanah. Pupuk hayati memiliki kandungan mikroorganisme yang dapat memperbaiki kesuburan serta kesehatan tanah. Penelitian bertujuan mengetahui efektivitas dosis pupuk hayati dengan mengurangi dosis pupuk anorganik dan mengetahui pertumbuhan vegetatif tanaman nanas. Pengambilan tanah dilakukan dengan metode komposit pada sub anakan dengan tiga ulangan. Desain penelitian menggunakan RAL (Rancangan Acak Lengkap) uji lanjut DMRT 5% (software R- Studio), dan uji korelasi (Microsoft Excel 2019) dengan sembilan taraf perlakuan tiga ulangan. Sembilan taraf perlakuan tersebut adalah Sembilan taraf perlakuan tersebut adalah P0 (Pupuk kandang - kontrol), P1 (NPK 100% - standar GGP), P2 (Pupuk hayati Provibio 100% + NPK 100%), P3 (Pupuk hayati Provibio 100% + NPK 50%), P4 (Mikoriza 100% + NPK 100%), P5 (Mikoriza 100% + NPK 50%), P6 (Pupuk hayati Provibio 100% + Mikoriza 100% + NPK 50%), P7 (Pupuk hayati Provibio 75% + Mikoriza 75% + NPK 50%), P8 (Pupuk hayati Provibio 50% + Mikoriza 50% + NPK 50%). Hasil penelitian menunjukkan bahwa pemberian pupuk hayati mempengaruhi peningkatan pH, N-total, c-organik, C/N rasio, dan K- total. Total populasi mikrob terbaik pada perlakuan P5 (Mikoriza 100% + NPK 50%) dan P6 (Provibio 100% + Mikoriza 100% + NPK 50%). Sedangkan pada parameter pertumbuhan tanaman nanas, bobot basah, dan bobot kering tidak memberikan pengaruh nyata pada seluruh parameter. Pada parameter kesehatan akar termasuk dalam kategori agak sehat sampai ke sehat. Nilai korelasi tinggi didapatkan antara pH dengan total mikrob sebesar 0,649. Pemberian pupuk hayati pada penelitian ini memberikan hasil yang positif di beberapa perlakuan. Perlakuan dengan dosis pupuk hayati terbaik yang menyerupai hasil dosis standar pemupukan antara lain P5 (Mikoriza 100% + NPK 50%) dan P8 (Pupuk hayati Provibio 50% + Mikoriza 50% + NPK 50%)., Pineapple is a leading commodity in Indonesia, with the highest production in Lampung Province. The use of inorganic fertilizers in Lampung is very high, mainly due to the low fertility level of the soil. The use of inorganic fertilizers can have a negative impact on soil health. Biofertilizers contain microorganisms that can improve soil fertility and health. The research aimed to determine the effectiveness of fertilizer doses and vegetative growth of pineapple plants. Soil samples were taken using composite methods on three seedlings with three replications. The research design used a Completely Randomized Design (CRD) with ANOVA test, DMRT 5% test (R-Studio software), and correlation test (Microsoft Excel 2019) with nine levels treatment of three. Ninth levels treatment are P0 (Pupuk kandang - kontrol), P1 (NPK 100% - standar GGP), P2 (Pupuk hayati Provibio 100% + NPK 100%), P3 (Pupuk hayati Provibio 100% + NPK 50%), P4 (Mikoriza 100% + NPK 100%), P5 (Mikoriza 100% + NPK 50%), P6 (Pupuk hayati Provibio 100% + Mikoriza 100% + NPK 50%), P7 (Pupuk hayati Provibio 75% + Mikoriza 75% + NPK 50%), P8 (Pupuk hayati Provibio 50% + Mikoriza 50% + NPK 50%). The research results show that the application
Keyword: Soil fertility, Soil health, Microorganisms, PH

Judul: Query Expansion based on Bilingual Dictionary Using Conditional Probability
Abstrak: Query expansion is a technique that can be used to bridge vocabulary gaps between queries and documents in the collection. With query expansion, user will be helped to formulate queries well so that user will optimize the search result. In this study, the expansion term was resulted from the translation of bilingual dictionary. Subsequently, several terms of expansion were elected based on the closeness of its relationship with the original query. This research showed that conditional probability can be used to select expansion term in bilingual translation method query expansion. The result of 1000 documents was more than 97% relevan document can be retrieved by this system. The more expansion term used, the larger number relevan document was retrieved.
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