atman roja - Academia.edu (original) (raw)
Papers by atman roja
ABSTRACTThe Strength Competitiveness of Local Lowland Rice Variety in West Sumatera. The assessm... more ABSTRACTThe Strength Competitiveness of Local Lowland Rice Variety in West Sumatera. The assessment needs to be done to determine the causes of farmers preference in choosing local varieties. The purpose of the assessment is to examine the strength competitiveness of local varieties than national varieties from social economic aspects, to be used as a development strategy of national superior variety. Research done on 2012 in the Pesisir Selatan, Padang Pariaman and Agam Districts. The information obtained with surveys ways to 60 respondents each location. Data was analyzed as descriptive and cross tabulation ways. The assessment results concluded that competitiveness of lokal varieties is higher than superior varieties, seen from the higher location distribution of local varieties (62.2%) than superior varieties (37.8%), utilization of local varieties (76%) is higher than superior varieties (24%), and more than 50% farmers tend to use local varieties. The reason people still survi...
Informatika Pertanian, 2012
ABSTRAK Kehilangan hasil kedelai akibat serangan hama dapat menurunkan hasil sampai 80%, bahkan p... more ABSTRAK Kehilangan hasil kedelai akibat serangan hama dapat menurunkan hasil sampai 80%, bahkan puso apabila tidak ada tindakan pengendalian. Kendala utama dalam melakukan pengendalian adalah sukarnya petani atau penyuluh dalam mendiagnosis jenis hama utama yang menyerang tanaman kedelai di lapangan secara dini/cepat serta sekaligus menerapkan teknologi pengendaliannya yang tepat baik secara mekanis, biologis, dan kimiawi. Untuk membantu petani atau penyuluh dalam pengambilan keputusan lebih dini dan cepat, perlu adanya teknologi alat bantu yang mudah digunakan dan mudah dipahami. Salah satu teknologi yang berkembang saat ini untuk pengambilan keputusan tersebut adalah memanfaatkan Aplikasi Sistem Pakar. Untuk itu dilakukan perancangan dan implementasi sistem pakar pengendalian hama utama kedelai (Sipakar Hatmalai) di %DODL 3HQJNDMLDQ 7HNQRORJL 3HUWDQLDQ %373 6XPDWHUD %DUDW GL 6XNDUDPL 6RORN GDQ 8QLYHUVLWDV 3XWUD ,QGRQHVLD ³<37.´ Padang pada bulan Maret sampai September 2009. Menggunakan pendekatan terstruktur atau metodologi berbasiskan proses (process-oriented methodologies) yang merupakan sebuah teknik model driven dan berpusat pada proses, yang digunakan untuk menganalisis sistem yang ada dan mendefinisikan persyaratan-persyaratan bisnis untuk sebuah sistem baru atau kedua-duanya. Bertujuan untuk melakukan rancang bangun dan implementasi perangkat lunak sistem pakar dalam mendiagnosis hama utama tanaman kedelai dan teknologi pengendaliannya secara mekanis, biologis, dan kimiawi GHQJDQ QDPD ³6LSDNDU +DWPDODL´. Tahapan-tahapan kerja, meliputi: (a) Perumusan Masalah; (b) Menetapkan Tujuan; (c) Studi Pustaka; (d) Pengumpulan Data dan Informasi; (e) Analisis Sistem; (f) Perancangan Basis Data; (g) Perancangan Basis Pengetahuan; (h) Perancangan Antar Muka Pemakai; dan (i) Implementasi. Hasil perancangan dan implementasi mendapatkan bahwa basis pengetahuan sistem pakar ini berupa 15 jenis hama utama yang menyerang tanaman kedelai, tujuh lokasi kerusakan tanaman kedelai, dan 53 jenis gejala kerusakan tanaman kedelai, serta 166 macam kaidah. Sedangkan, solusinya berupa 15 macam teknologi pengendalian hama utama kedelai dengan nilai faktor kepastian (Certainty Factor, CF) berkisar 0,8-1,0. Tampilan antar muka sistem pakar ini terdiri dari dua bentuk, yaitu tampilan untuk user pakar dan user non pakar (penyuluh/petani). Pakar dapat melakukan perbaikan pengetahuan berupa: basis pengetahuan dan basis aturan. Sedangkan user non pakar (penyuluh/petani) hanya dapat memanfaatkan fasilitas konsultasi. Untuk lebih sempurnanya Sipakar Hatmalai ini, perlu dilakukan perbaikan dan penambahan input data dan kaidah (rule) dalam mendiagnosis hama utama pada tanaman kedelai sehingga didapatkan goal yang lebih tepat dan beragam. Selain itu, sebelum Sipakar Hatmalai ini diaplikasikan ke pengguna, sebaiknya dilakukan uji coba terlebih dahulu.
Indonesian Journal of Applied Agriculture, 2011
IAARD Press eBooks, 2017
У статті дається огляд проблем, пов'язаних з контролем вібрацій будівельних конструкцій. Розгляда... more У статті дається огляд проблем, пов'язаних з контролем вібрацій будівельних конструкцій. Розглядаються існуючі способи боротьби з вібраціями. Аналізується можливість використання сучасних адаптивних матеріалів у віброзахисних системах. Ключові слова: гасіння вібрацій, будівельні конструкції, адаптивні матеріали Клитной Владимир Викторович, канд. техн. наук, доц. кафедры «Детали машин и прикладная механика». Харьковский Национальный технический университет «Харьковский политехнический институт», г. Харьков, Украина.
International Journal of Environment, Agriculture and Biotechnology, 2018
This research was conducted on rice paddy area at the Simarasok Village, West Sumatra Province, I... more This research was conducted on rice paddy area at the Simarasok Village, West Sumatra Province, Indonesia, aimed at investigating the effect of dosage of cow dung as organic fertilizer on growth, yield component and production of organic rice. The experiment was arranged using a Complete Randomized Block Design with four treatments and six replications. The treatment was organic fertilizer of cow dung composted using local microbial organisms with four dosage levels, namely: a) 2 tons/ha; b) 4 tons/ha; c) 6 tons/ha; and d) 8 tons/ha. The rice variety used was the Kuriak Kusuik and the observed variables included: leaf color score, plant height, maximum number of tillers, number of productive tillers, panicle length, number of grains per panicle, percentage of empty grain, weight of 1000 grains, and grain yield. The result showed that the dosage of organic fertilizer of cow dung had significant effect on leaf color score at 56 days after planting (DAP), number of productive tillers, number of grains per panicle, and grain yield. In contrast, plant height, maximum number of tillers, panicle length, weight of 1,000 grains, and empty grain were not significantly affected. It was found that there was a positive relationship between the dosages of organic fertilizer of cow dung with the grain yield. The addition of cow dung as the organic fertilizer as much as 1 ton/ha to the soil could cause an increase in the yield of grain by 0.097 ton/ha.
In West Sumatra Province, peanut represent one of the priority commodity in development of food c... more In West Sumatra Province, peanut represent one of the priority commodity in development of food crop subsector. But, till now, acceleration production less is seething with excitement to have, fluctuation, and tend to down hilly. To overcome this problems, can be conducted by planting pre-eminent varieties newly peanut have lenient and high result potency to at dry acid dry soil as farm which still available to extension of agriculture areal. This research aim to get peanut promising lines which capable to adapt in dry acid soil, with pH <5. Research have been executed on farmer land of district of Talawi Town of Sawahlunto, West Sumatra, start September until December 2010 at dry acid soil (pH 4,57). Using 15 promising lines from Balitkabi Malang. that is: (1) GHM-2010-1; (2) GHM-2010-2; (3) GHM-2010-6; (4) GHM-2010-9; (5) GHM-2010-10; (6) GHM-2010-11; (7) GHM-2010-15; (8) GHM-2010-17; (9) GHM-2010-19; (10) GHM-2010-52; (11) GHM-2010-56; (12) GHM-2010-57; (13) GHM-2010-58; (14) ...
This research was conducted on rice paddy area at the Simarasok Village, West Sumatra Province, I... more This research was conducted on rice paddy area at the Simarasok Village, West Sumatra Province, Indonesia, aimed at investigating the effect of dosage of cow dung as organic fertilizer on growth, yield component and production of organic rice. The experiment was arranged using a Complete Randomized Block Design with four treatments and six replications. The treatment was organic fertilizer of cow dung composted using local microbial organisms with four dosage levels, namely: a) 2 tons/ha; b) 4 tons/ha; c) 6 tons/ha; and d) 8 tons/ha. The rice variety used was the Kuriak Kusuik and the observed variables included: leaf color score, plant height, maximum number of tillers, number of productive tillers, panicle length, number of grains per panicle, percentage of empty grain, weight of 1000 grains, and grain yield. The result showed that the dosage of organic fertilizer of cow dung had significant effect on leaf color score at 56 days after planting (DAP), number of productive tillers, number of grains per panicle, and grain yield. In contrast, plant height, maximum number of tillers, panicle length, weight of 1,000 grains, and empty grain were not significantly affected. It was found that there was a positive relationship between the dosages of organic fertilizer of cow dung with the grain yield. The addition of cow dung as the organic fertilizer as much as 1 ton/ha to the soil could cause an increase in the yield of grain by 0.097 ton/ha.
Informatika Pertanian, Jul 1, 2012
ABSTRACTThe Strength Competitiveness of Local Lowland Rice Variety in West Sumatera. The assessm... more ABSTRACTThe Strength Competitiveness of Local Lowland Rice Variety in West Sumatera. The assessment needs to be done to determine the causes of farmers preference in choosing local varieties. The purpose of the assessment is to examine the strength competitiveness of local varieties than national varieties from social economic aspects, to be used as a development strategy of national superior variety. Research done on 2012 in the Pesisir Selatan, Padang Pariaman and Agam Districts. The information obtained with surveys ways to 60 respondents each location. Data was analyzed as descriptive and cross tabulation ways. The assessment results concluded that competitiveness of lokal varieties is higher than superior varieties, seen from the higher location distribution of local varieties (62.2%) than superior varieties (37.8%), utilization of local varieties (76%) is higher than superior varieties (24%), and more than 50% farmers tend to use local varieties. The reason people still survi...
Informatika Pertanian, 2012
ABSTRAK Kehilangan hasil kedelai akibat serangan hama dapat menurunkan hasil sampai 80%, bahkan p... more ABSTRAK Kehilangan hasil kedelai akibat serangan hama dapat menurunkan hasil sampai 80%, bahkan puso apabila tidak ada tindakan pengendalian. Kendala utama dalam melakukan pengendalian adalah sukarnya petani atau penyuluh dalam mendiagnosis jenis hama utama yang menyerang tanaman kedelai di lapangan secara dini/cepat serta sekaligus menerapkan teknologi pengendaliannya yang tepat baik secara mekanis, biologis, dan kimiawi. Untuk membantu petani atau penyuluh dalam pengambilan keputusan lebih dini dan cepat, perlu adanya teknologi alat bantu yang mudah digunakan dan mudah dipahami. Salah satu teknologi yang berkembang saat ini untuk pengambilan keputusan tersebut adalah memanfaatkan Aplikasi Sistem Pakar. Untuk itu dilakukan perancangan dan implementasi sistem pakar pengendalian hama utama kedelai (Sipakar Hatmalai) di %DODL 3HQJNDMLDQ 7HNQRORJL 3HUWDQLDQ %373 6XPDWHUD %DUDW GL 6XNDUDPL 6RORN GDQ 8QLYHUVLWDV 3XWUD ,QGRQHVLD ³<37.´ Padang pada bulan Maret sampai September 2009. Menggunakan pendekatan terstruktur atau metodologi berbasiskan proses (process-oriented methodologies) yang merupakan sebuah teknik model driven dan berpusat pada proses, yang digunakan untuk menganalisis sistem yang ada dan mendefinisikan persyaratan-persyaratan bisnis untuk sebuah sistem baru atau kedua-duanya. Bertujuan untuk melakukan rancang bangun dan implementasi perangkat lunak sistem pakar dalam mendiagnosis hama utama tanaman kedelai dan teknologi pengendaliannya secara mekanis, biologis, dan kimiawi GHQJDQ QDPD ³6LSDNDU +DWPDODL´. Tahapan-tahapan kerja, meliputi: (a) Perumusan Masalah; (b) Menetapkan Tujuan; (c) Studi Pustaka; (d) Pengumpulan Data dan Informasi; (e) Analisis Sistem; (f) Perancangan Basis Data; (g) Perancangan Basis Pengetahuan; (h) Perancangan Antar Muka Pemakai; dan (i) Implementasi. Hasil perancangan dan implementasi mendapatkan bahwa basis pengetahuan sistem pakar ini berupa 15 jenis hama utama yang menyerang tanaman kedelai, tujuh lokasi kerusakan tanaman kedelai, dan 53 jenis gejala kerusakan tanaman kedelai, serta 166 macam kaidah. Sedangkan, solusinya berupa 15 macam teknologi pengendalian hama utama kedelai dengan nilai faktor kepastian (Certainty Factor, CF) berkisar 0,8-1,0. Tampilan antar muka sistem pakar ini terdiri dari dua bentuk, yaitu tampilan untuk user pakar dan user non pakar (penyuluh/petani). Pakar dapat melakukan perbaikan pengetahuan berupa: basis pengetahuan dan basis aturan. Sedangkan user non pakar (penyuluh/petani) hanya dapat memanfaatkan fasilitas konsultasi. Untuk lebih sempurnanya Sipakar Hatmalai ini, perlu dilakukan perbaikan dan penambahan input data dan kaidah (rule) dalam mendiagnosis hama utama pada tanaman kedelai sehingga didapatkan goal yang lebih tepat dan beragam. Selain itu, sebelum Sipakar Hatmalai ini diaplikasikan ke pengguna, sebaiknya dilakukan uji coba terlebih dahulu.
Indonesian Journal of Applied Agriculture, 2011
IAARD Press eBooks, 2017
У статті дається огляд проблем, пов'язаних з контролем вібрацій будівельних конструкцій. Розгляда... more У статті дається огляд проблем, пов'язаних з контролем вібрацій будівельних конструкцій. Розглядаються існуючі способи боротьби з вібраціями. Аналізується можливість використання сучасних адаптивних матеріалів у віброзахисних системах. Ключові слова: гасіння вібрацій, будівельні конструкції, адаптивні матеріали Клитной Владимир Викторович, канд. техн. наук, доц. кафедры «Детали машин и прикладная механика». Харьковский Национальный технический университет «Харьковский политехнический институт», г. Харьков, Украина.
International Journal of Environment, Agriculture and Biotechnology, 2018
This research was conducted on rice paddy area at the Simarasok Village, West Sumatra Province, I... more This research was conducted on rice paddy area at the Simarasok Village, West Sumatra Province, Indonesia, aimed at investigating the effect of dosage of cow dung as organic fertilizer on growth, yield component and production of organic rice. The experiment was arranged using a Complete Randomized Block Design with four treatments and six replications. The treatment was organic fertilizer of cow dung composted using local microbial organisms with four dosage levels, namely: a) 2 tons/ha; b) 4 tons/ha; c) 6 tons/ha; and d) 8 tons/ha. The rice variety used was the Kuriak Kusuik and the observed variables included: leaf color score, plant height, maximum number of tillers, number of productive tillers, panicle length, number of grains per panicle, percentage of empty grain, weight of 1000 grains, and grain yield. The result showed that the dosage of organic fertilizer of cow dung had significant effect on leaf color score at 56 days after planting (DAP), number of productive tillers, number of grains per panicle, and grain yield. In contrast, plant height, maximum number of tillers, panicle length, weight of 1,000 grains, and empty grain were not significantly affected. It was found that there was a positive relationship between the dosages of organic fertilizer of cow dung with the grain yield. The addition of cow dung as the organic fertilizer as much as 1 ton/ha to the soil could cause an increase in the yield of grain by 0.097 ton/ha.
In West Sumatra Province, peanut represent one of the priority commodity in development of food c... more In West Sumatra Province, peanut represent one of the priority commodity in development of food crop subsector. But, till now, acceleration production less is seething with excitement to have, fluctuation, and tend to down hilly. To overcome this problems, can be conducted by planting pre-eminent varieties newly peanut have lenient and high result potency to at dry acid dry soil as farm which still available to extension of agriculture areal. This research aim to get peanut promising lines which capable to adapt in dry acid soil, with pH <5. Research have been executed on farmer land of district of Talawi Town of Sawahlunto, West Sumatra, start September until December 2010 at dry acid soil (pH 4,57). Using 15 promising lines from Balitkabi Malang. that is: (1) GHM-2010-1; (2) GHM-2010-2; (3) GHM-2010-6; (4) GHM-2010-9; (5) GHM-2010-10; (6) GHM-2010-11; (7) GHM-2010-15; (8) GHM-2010-17; (9) GHM-2010-19; (10) GHM-2010-52; (11) GHM-2010-56; (12) GHM-2010-57; (13) GHM-2010-58; (14) ...
This research was conducted on rice paddy area at the Simarasok Village, West Sumatra Province, I... more This research was conducted on rice paddy area at the Simarasok Village, West Sumatra Province, Indonesia, aimed at investigating the effect of dosage of cow dung as organic fertilizer on growth, yield component and production of organic rice. The experiment was arranged using a Complete Randomized Block Design with four treatments and six replications. The treatment was organic fertilizer of cow dung composted using local microbial organisms with four dosage levels, namely: a) 2 tons/ha; b) 4 tons/ha; c) 6 tons/ha; and d) 8 tons/ha. The rice variety used was the Kuriak Kusuik and the observed variables included: leaf color score, plant height, maximum number of tillers, number of productive tillers, panicle length, number of grains per panicle, percentage of empty grain, weight of 1000 grains, and grain yield. The result showed that the dosage of organic fertilizer of cow dung had significant effect on leaf color score at 56 days after planting (DAP), number of productive tillers, number of grains per panicle, and grain yield. In contrast, plant height, maximum number of tillers, panicle length, weight of 1,000 grains, and empty grain were not significantly affected. It was found that there was a positive relationship between the dosages of organic fertilizer of cow dung with the grain yield. The addition of cow dung as the organic fertilizer as much as 1 ton/ha to the soil could cause an increase in the yield of grain by 0.097 ton/ha.
Informatika Pertanian, Jul 1, 2012