bluuebunny/crossref_metadata_2025_split huggingface dataset:
WILAYAH SURPLUS DAN DEFISIT AIR DI SENTRA PRODUKSI PADI SULAWESI UTARA MENGGUNAKAN MODEL NERACA AIR
Authors: Panelewen J. H. , Rogi J. E.X. , Rotinsulu W. 
Published: July 2019

ABSTRACT The research was conducted in the field and laboratory. Fieldwork in paddy rice production center was done to collect geographical coordinates while data analysis was conducted in the Laboratory of Ecosystem Modelling, Faculty of Agriculture, Sam Ratulangi University. Laboratory analysis was done to validate water balance model and to develop water surplus dan water shortage maps. This research was done during August 2012. Data collection included identification, inventory and data analysis. Then it continued with developing digital maps using Geographical Information Systems (GIS) for water balance model. Model inputs included climatic variables (rainfall, temperature, humidity, sunlight, and windspeed), ground water content and leaf area index. Parameter inputs included crop variety and location. Model simulation indicated that rainfall trend in North Sulawesi has increased especially in Januari, April dan November. Conversely, a decrease rainfall trend was ocurred in February and September. Spatial map showed that water surplus ocurred in Minahasa Selatan, Bolaang Mongondow, Bolang Mongondow Utara and Bolaang Mongondow Selatan. On the other hand, water shortage in North Sulawesi was experienced in October. Keywords : geographical information systems, water balance model ABSTRAK Penelitian ini dilakukan di lapangan dan laboratorium. Kerja lapangan di sentra produksi padi dilakukan untuk mengumpulkan data koordinat geografis sedangkan data analisis dilakukan di Laboratorium Model Ekosistem, Fakultas Pertanian, Universitas Sam Ratulangi. Analisis Laboratorium dilakukan untuk memvalidasi model neraca air dan untuk mengembangkan peta kelebihan dan kekurangan air. Penelitian ini dilakukan selama bulan Agustus 2012. Pengumpulan data meliputi identifikasi, inventarisasi dan analisis data. Kemudian dilanjutkan dengan mengembangkan peta digital dengan menggunakan Sistem Informasi Geografis (SIG) untuk model neraca air. Model input meliputi variabel iklim (curah hujan, suhu, kelembaban, sinar matahari, dan kecepatan angin), kadar air tanah dan indeks luas daun. Parameter input meliputi berbagai varietas tanaman dan lokasi. Model simulasi menunjukkan bahwa curah hujan tren di Sulawesi Utara telah meningkat terutama pada Januari, April dan November. Sebaliknya, penurunan curah hujan tren yang terjadi pada bulan Februari dan September. Spasial peta menunjukkan bahwa surplus air terjadi di Minahasa Selatan, Bolaang Mongondow, Bolang Mongondow Utara dan Bolaang Mongondow Selatan. Di sisi lain, kekurangan air di Sulawesi Utara dialami pada bulan Oktober. Kata kunci: sistem informasi geografis, model neraca air
PERTUMBUHAN BIBIT SENGON (Paraserianthes falcataria) PADA BERBAGAI MEDIA TUMBUH
Authors: Sukarman Sukarman , Kainde R. , Rombang J. , Thomas A. 
Published: July 2019

ABSTRACT This research was carried out in Silviculture Laboratory, Agriculture Faculty, Sam Ratulangi University, from April to June 2012. The aim of this was to examine the influence of growth media combination on height, diameter and number of leaf sengon seedling, using a Randomized Complete Design with one factor. The factor is top soil, top soil and sekam bakar, and top soil and coco peat. Based on the research, the results of Anaslysis of Variance showed that top soil and combination of top soil and sekam bakar give most number of seedling leaf. However, growth of height and diameter at all of combination was no significant, but there was trend that top soil give best growth of height and best growth of diameter given by the top soil and combination of top soil and sekam bakar. Keywords : growth media, sengon ABSTRAK Penelitian ini dilaksanakan di Laboratorium Silvikultur, Fakultas Pertanian, Universitas Sam Ratulangi, pada bulan April - Juni 2012. Tujuan dari penelitian ini untuk mengetahui pengaruh kombinasi media tumbuh terhadap pertumbahan tinggi, diameter dan jumlah daun bibit sengon, dengan menggunakan Rancangan Acak Lengkap (RAL) satu faktor. Faktor tersebut adalah tanah lapisan atas, campuran tanah lapisan atas dengan pasir, campuran tanah lapisan atas dengan sekam bakar dan campuran tanah lapisan atas dengan coco peat. Berdasarkan hasil penelitian, bahwa hasil sidik ragam menunjukkan media tumbuh tanah lapisan atas dan media tumbuh campuran tanah lapisan atas dengan sekam bakar menunjukkan pertumbuhan jumlah daun bibit sengon ang terbanyak. Sedangkan pertumbuhan tinggi dan diameter pada berbagai media yang diuji tidak berbeda nyata, tapi kecendrungan pertumbuhan tinggi tanaman terbaik ditunjukan pada media tumbuh tanah lapisan atas dan pertumbuhan diameter terbaik di tunjukkan pada media tumbuh tanah lapisan atas dan campuran tanah lapisan atas dengan sekam bakar. Kata kunci : media tumbuh, sengon
PROSPEK PEMANFAATAN BIOPESTISIDA BAKTERI ENTOMOPATOGENIK ISOLAT LOKAL SEBAGAI AGEN PENGENDALI HAYATI HAMA TANAMAN SAYURAN
Authors: Salaki Ch. L. , Tarore D. , Manengkey G. 
Published: July 2019

ABSTRACT The utilization efforts of entomopathogenic bacteria as an insecticide is still being developed. One of the potential pathogen, which is developed as a source of insecticide is Bacillus spp. The study aims to determine the level of pathogenicity, and get the pathogenity spectrum isolates in the high virulences against the pests of vegetable crops to be used as a biopesticide candidates. Testing the power to kill larvae isolates of Bacillus thuringiensis against Crocidolomia binotalis, Plutella xylostella and Spodoptera litura was performed by the Method of Ohba and Aizawa. The results showed that, of 21 local isolates B. thuringiensis, there were 15 isolates could cause the mortality of > 50% of the larvae of C. binotalis, 20 isolates toward larvae of P. xylostella and 12 isolates toward larvae of S. litura. The isolates, which could potentially be selected based on the pathogenicity, the candidates will then be developed into a biopesticide for pests control of Crocidolomia binotalis, Plutella xylostella and Spodoptera litura on vegetable crops. Keywords: biopesticide, entomopathogenic bacteria, vegetable plants ABSTRAK Upaya pemanfaatan bakteri entomopatogenik sebagai insektisida masih terus dikembangkan. Salah satu patogen yang berpotensi untuk dikembangkan sebagai sumber insektisida adalah bakteri Bacillus spp. Penelitian bertujuan untuk mengetahui tingkat patogenisitas, spektrum patogensisitas dan mendapatkan isolat yang memiliki virulensi yang tinggi terhadap hama tanaman sayuran untuk dijadikan sebagai kandidat biopestisida. Pengujian daya bunuh isolat Bacillus thuringiensis terhadap larva uji Crocidolomia binotalis, Plutella xylostella dan Spodoptera litura dilakukan dengan Metode Ohba dan Aizawa. Hasil penelitian menunjukkan bahwa dari 21 isolat B. thuringiensis lokal terdapat 15 isolat yang dapat menyebabkan mortalitas > 50 % terhadap larva C. binotalis, 20 isolat terhadap larva P. xylostella dan 12 isolat terhadap larva S. litura. Isolat yang berpotensi selanjutnya akan diseleksi berdasarkan patogenisitasnya kemudian akan dikembangkan menjadi kandidat biopestisida untuk mengendalikan hama Crocidolomia binotalis, Plutella xylostella dan Spodoptera litura pada tanaman sayuran. Kata kunci : biopestisida, bakteri entomopatogenik, tanaman sayuran
INDUKSI TUNAS DARI NODUL KRISAN KULO DALAM MEDIA MURASHIGE DAN SKOOG YANG DIBERI SITOKININ
Authors: Tilaar W. , Rantung J. , Tulung S. 
Published: July 2019

ABSTRACT The kulo chrysanthemum variety is a North Sulawesi local variety characterized by large white flowers. The new variety was introduced barely two years ago, yet it has gained considerable popularity among flower farmers in Tomohon City as well as in Manado, Tondano, and around the Minahasa and North Minahasa regencies. The growing interest in this particular variety has increased the demand for nursery stock resulting in a shortage of supply. The conventional plantlet propagation method i.e. one seed to grow one plant, is deemed very time consuming and has poor plantlet yield. It is therefore necessary to explore other plantlet propagation methods that can produce high yield in a relatively short period of time. One of the best techniques for plantlet propagation is tissue culture. The success of tissue culture in producing high plantlet yield is determined by the use of appropriate plant growth regulators. Accurate concentrations of growth regulators are vital in achieving an optimum yield. Consequently, determining the exact concentrations is a major issue in the tissue culture method. Cytokinins are commonly used as growth regulators in shoot and plantlet propagations. However, different types of cytokinins may have different effects on shoot generation from the nodal explants used in particular in vitro propagations. The kulo chrysanthemum variety has never been propagated using the nodal explant tissue culture technique and may respond differently than other varieties. Therefore, it is essential to determine which types of cytokinins are most suited to stimulate its shoot and plantlet propagations. Keywords: propagation, chrysanthemum nodes, murashige, skoog, BAP, kinetin, and NAA
PENENTUAN WAKTU TANAM PADI SAWAH DI KABUPATEN SANGIHE DENGAN MENGGUNAKAN MODEL SIMULASI SHIERARY RICE
Authors: Fattah Farida , Rogi J. E.X. , Toding Mariam M. 
Published: July 2019

ABSTRACT Decline in rice production in Sangihe Island partly due to climate change and the implementation of a less precise planting time. Rice Shierary model was used to predict the timing of planting paddy and has advantages in time and cost savings. This study aims to determine the exact time of planting in paddy rice crops in the district of South Manganitu, North Tabukan and Tamako, as well as to determine whether the results of the simulation model Shierary Rice together with the results obtained from the Central Bureau of Statistic Sangihe Islands. Input model consists of solar radiation, rainfall, temperature and humidity, field capacity, permanent wilting point, varieties, irrigation, nitrogen fertilization, longitude and latitude of the study area. While the output was paddy rice yield potential. It can be concluded that (a) the appropriate planting time of paddy in the South Manganitu namely in June with a potential yield of 4.25 tonha-1 and March with a potential yield of 3.88 tonha-1. (b) the appropriate planting time of paddy in the North Tabukan namely in June with a potential yield of 4.27 tonha-1 and March with a potential yield of 3.62 tonha-1. (c) the appropriate planting time of paddy in Tamako ie in March with a potential yield of 3.58 tonha-1 and February with a potential yield of 3.28 tonha-1. (d) the yield of rice field paddy with the determination of planting time by using the model of Shierary Rice nearing/line with productivity results which obtained by the Central Statistics Agency (BPS) Sangihe Islands. Keywords: planting, paddy, simulation models, Shierary Rice
PEMANFAATAN KOMPOS PADA LAHAN KRITIS UNTUK MENUNJANG PRODUKSI BAWANG MERAH, KACANG TANAH, DAN KEDELE DI KABUPATEN MINAHASA UTARA
Authors: Supit Joice M.J. , Kamagi Yani E.B. , Kumolontang Wiesje J. 
Published: July 2019

ABSTRACT The experiment pot of the effect compost in the critical land on the production onions, peanuts, and soybeans, the goal is to get organic agricultural production and determine the optimal dose of compost for plant onions, peanuts and soybeans. Before the experiment of compost treatment was conducted the compost and soil as media plant to analyse the chemical properties. After the experiment of compost treatment was conducted the soil as media plant to analyse the chemical properties. The experiment design of methode was used complate randamized design (CRD) with the five treatment compost and four replication. Dosage of compost consists of 0 tonnes/ha (0 g/pot) as a control, 30 tonnes /ha (75 g /pot); 60 tonnes/ha (150 g/pot); 90 tonnes/ha (225 g/pot), and 120 tonnes/ha (300 g/pot). The parameter were observed wet weight of plants, quantity and weight beet the production plant of onions; wet weight of plants, quantity and weight of pod pea and seed the production plant of peanuts and soyabeans. The data of analysis was used the analysis of variance (Anova) and the least significant difference (LSD). The results showed that treatment of compost very significant effect on the growth and production of plant onions, peanuts and soybeans. Treatment compost 90 tonnes/ha (225 g/pot) provide growth and yield of plant onion, peanuts, and soybeans maximum. Keywords: compost, onion, peanut, soybean, critical land
SERANGAN DAN POPULASI Scotinophara sp. PADA TANAMAN PADI SAWAH DI KABUPATEN BOLAANG MONGONDOW TIMUR
Authors: Kila Alex Hendra , Salaki Ch. L. , Meray E. R.M. 
Published: July 2019

ABSTRACT The research aimed to find out the attacks and pest populations Scotinophara sp. in rice crops have been carried out in EastBolaang Mongondow from July to October 2014. The study used survey methods at several centers of rice cultivation in East Bolaang Mongondow, then set three districts as a test site where sampling. Sampling using Method Diagonal slices then select ten clump of rice plants in each sub-sample plots. Samples were taken at vegetative stage and generative phase. Things were observed in this study is the percentage of infected plants and pest populations. The results showed that the highest percentage of infected rice plants in the age of the plants 8 weeks after plants are found in Sub Tutuyan amounted to 66.66 percent and the lowest sequentially the District Nuangan and the District Kotabunan namely 39.33 percent and 11.13 percent.The highest Scotinophara sp. population density was found based on the location is district Tutuyan 10,11 tail and the lowest sequentially District Nuangan and the District Kotabunan is 1.82 and 0.96 tail. The density of the population by age of the plant, the highest in the plant age 8 mst 12.75 and the lowest sequentially 6, 4 and 2 mst is4.38, 0.06 and 0 tail.Keywords : attack, population, Scotinophara sp., rice plant
RESPON PAKLOBUTRAZOL TERHADAP PERTUMBUHAN DAN HASIL PADI LOKAL WESEL
Authors: Runtunuwu Semuel D. , Sumampouw D. M.F. , Tumewu P. , Mamarimbing R. , Rengkung R. M.N. 
Published: July 2019

ABSTRACT Response of rice to paclobutrazol (PBZ) depends on plant variety. This experiment were done to know the influence of PBZ to growth and yield of local rice Wesel using randomized block design (RBD). The treatment consist of four dosages of PBZ with four replications. The results showed PBZ treatmant enhance of grain yield per plant, number of productive tillers (NPT), weight of 1.000 grains, crop growth rate (CGR), and leaf chlorophyll content.Keywords: Paclobutrazol (PBZ), crop growth rate (CGR), chlorophyll, yield, local rice
UJI KUALITATIF KANDUNGAN HARA KOMPOS CAMPURAN BEBERAPA KOTORAN TERNAK PELIHARAAN
Authors: Tumimbang Meity , Tamod Zetly E. , Kumolontang W. 
Published: July 2019

ABSTRACT The purpose of this research is to find out the nutrient content on five types of livestock manure compost which made of the mix of some livestock manure. This research uses three stages starting from the inventory, then analyzing the data, and finally interpretation of the data for the parameters: follow-up material, color, odor, moisture or water content, Reaction Fertilizer PH, Levels of C Organic, Levels of Total N, Total P, Total K, and Fe. The inventory stage is conducted in laboratory using fast accurate qualitative methods based on Soil Research Center manual guide (2015). The research showed the results of the analysis of physical quality of blackish brown color, soil smells, moisture content less than 50% have met the Indonesian National Standard (SNI) 19-7030-2004. However, based on Decree of the Minister of Agriculture no 28/Permentan/SR.130/B/2009, the water content obtained under the requirements is only in the range of 7.82 to 13.31 from 15-25% while the follow-up material showed <2%. The test results using a set of compost test tools showed N Total content of the livestock manure mixture compost that were made in the range of 2-3% (SNI standard >0,4% and Decree of the Minister of Agriculture <6%), P2O5 1-1.5% (SNI standard >0.1% and Decree of the Minister of Agriculture <6%), C-Organic 10% (SNI standard >9,8-32% and Decree of the Minister of Agriculture >12%), and Fe content 1000-2000 ppm (Decree of the Minister of Agriculture standard 0-8000 ppm), PH 5-7 (SNI standard 6,8 and Decree of the Minister of Agriculture standard 7,49).Key words: compost, domesticated cattle
APLIKASI SEDIMEN DANAU TONDANO SEBAGAI MEDIA TANAM BAGI PERTUMBUHAN TANAMAN PAKCOY
Authors: Sinolungan M. T.M. , Kumolontang W. N.J. 
Published: July 2019

ABSTRACT Tondano Lake, one of vital natural resources at Minahasa Regency, North Sulawesi, has some functions and some problems, i.e.: sedimentation and lake shallowing. This research was conducted by using water hyacinth (Eichornia crassipes (Malt)) as compost/organic fertilizer and sediment of Tondano Lake as plant media for Packoy growth. This research has aimed to: 1) Test the composition of Tondano Lake sediment, 2) Test the composition of water hyacinth compost, and 3) Measure the growth of Pakcoy toward the given compost as a preliminary research (Pot Experiment). This was conducted: a) sediment sampling at the west part of Tondano Lake, b) sediment and compost analyses at Chemical and Soil Fertility Laboratory of Agriculture Faculty of Unsrat, c) planting Pakcoy in small pots with Group-Randomized Design for nine months in 2016. Results showed that, 1) sediment composition of Tondano Lake as the plant media has tested, 2) compost composition of water hyacinth has tested, and 3) Pakcoy growth toward the given compost as a preliminary research (Pot Experiment) has measured by height of plant, number of leaves, and freshedweight of crops, andso would applicable in further research due to the result of analyses was significantly different. Keywords: sediment, Tondano Lake, compost, water hyacinth, pakcoy
PREFERENSI HAMA KEPINDING TANAH (Scotinophara coartata F) PADA BEBERAPA VARIETAS TANAMAN PADI SAWAH
Authors: Moonik Jandrio H. , Manueke J. , Tarore D. 
Published: July 2019

ABSTRACT Rice Black Bug (Scotinophara coartata F) is one of the most important pests that attack rice crops and has caused major losses. The purpose of this study is to determine the Rice Black Bug preferences in some varieties of rice crops. This research was conducted in Modomang Village, East Dumoga Subdistrict of Bolaang Mongondow Regency from November 2016 - February 2017. This research used Completely Randomized Design (CRD) with 5 treatments, namely several varieties of rice field cultivation (Ciherang, Cigeulis, Membramo, Pertiwi and Serayu).Based on the results of this study showed that the population of S. coartata pest with the largest average in Serayu varieties of 6 tails, followed by Membramo 3.75 tail, 3.5 Pertiwi, 3.5 Cigeulis and the lowest Ciherang with an average of 3.25 tailKeywords: preferences, rice black bug pest, varieties plants rice
RESPONS PERTUMBUHAN DAN HASIL JAGUNG UNGU BERDASARKAN LETAK SUMBER BENIH PADA TONGKOL
Authors: Pamandungan Yefta , Ogie Tommy B. 
Published: July 2019

ABSTRACT This research aims to 1) Study the growth and yield responses of purple corn location effect of the seed source on the ear to growth and yield of, 2) Determine the right location of the seed source on the ear to get the best of growth and yield of purple corn. Research conducted at the Kebun Percobaan (KP) Pandu, Faculty of Agriculture, University of Sam Ratulangi (Unsrat) Manado from April to July 2016. The plant material used is purple corn collected in the laboratory of Plant Science, Faculty of Agriculture, Unsrat. This research is using a randomized block design by four treatments, such as: L1 (base of the ear), L2 (center of the ear), L3 (tip of the ear), and L4 (all parts of the ear). Each treatment consisted of four replicates so that there are 16 experimental units. The results showed that treatment of the seed source location on the ear gives no significant effect on all components of growth. The treatment of L4 (base of the ear) produces the highest percentage of plants grown for 14 days after planting (42.75%), treatment of L2 (center of the ear) produces highest of the plant height at 20 and 40 days after planting (6.17 cm and 45.68 cm). On purple corn yield components, the treatment provides a significant effect on the weight of ear and length of the ear, but no significant effect on the diameter of the ear, number of seed rows per ear and weight of 100 seeds. Treatment L2 (center of the ear) produces the highest yields on the weight of the ear (36.90 g), length of the ear (10.49 cm), diameter of the ear (2.92 cm), the number of seed rows per ear (7.55 lines) and weight of 100 seeds (24.56 g). Keywords: corn, seed source location of corn, purple corn
PEMBERIAN POC GAMAL TERHADAP PERTUMBUHAN DAN PRODUKSI PADI SAWAH (Oryza sativa L.) DENGAN METODE SALIBU
Authors: Mamentu Mifta , Paulus Jeanne M. , Lengkong Edy 
Published: July 2019

ABSTRACT The purpose of the research was to studied the application of gliricidia MOL on the growth and yield of lowland rice in the salibu method, and to get the best concentration of gliricidia liquid organic fertilizer (POC) on the growth and production of lowland rice. Field research has been conducted in Tababo Village, Subdistrict of Belang, district of Southeast Minahasa. The treatment in the experiment consists of one treatment factor, that were concentrations of gliricidia POC, ie : 0, 50 , 100, 150, and 200 ml/litre. The results showed that gliricidia POC have an effect on plant height, the number of grain/panicle, and the dry grain yield (GKP) / plot, but not affect the number of productive tillers and weight of 1,000 grain. The best results were achieved in gliricidia POC concentration 200 ml/litre with the highest values were: plant height was 98.93 cm; 116.420 grain/panicle; and 8.300 kg dry grain yield or equivalent to 6.92 ton/ha.Keywords : gliricidia POC, production, lowland rice, salibu method
LAJU DEKOMPOSISI AWAL SERASAH POHON Palaquium obovatum, Spathodea campanulata dan Calophyllum soulattri DI HUTAN BRON WAREMBUNGAN KABUPATEN MINAHASA
Authors: Rumambi Juwita F. , Langi M. A. , Nurmawan Wawan 
Published: July 2019

ABSTRACT The availability of nutrient inputs for soil fertility in forests is very important to preserve in an effort to anticipate a decrease in land productivity. Litter decomposition is a process of destruction of organic matter (litter) into nutrients available in the soil. This study aims to determine and compare the rate of decomposition of Palaqium obovatum, Spathodea campanulata, and Calophyllum soulattri litter in Bron Warembungan Forest, Minahasa Regency. This study was carried out on the leaf litter of Palaqium obovatum, Spathodea campanulata, and Calophyllum soulattri. The method of decomposition rate data collection using 36 litter bags placed randomly (with experiments using a completely randomized design (CRD) with two factors namely tree type and duration of decomposition) on the forest floor taken every week for four weeks, followed simultaneously with temperature measurements and humidity. The results showed that of the three main tree species in Bron Forest, the highest decomposition rate was shown by leaf litter of Spathodea campanulata with an average of 15.49% per week, followed by Palaquium obovatum (11.74% per week) and then Calophyllum soulattri ( 3.07% per week). The decomposition process in the three leaf litter took place very quickly in the first week which can also be associated with the results of measurements of water content in litter.Keywords: tropical rainforest, decomposition of litter, leaf litter