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INDONESIA
Jurnal Penelitian Pertanian Tanaman Pangan
Published by Pusat Penelitian dan Pengembangan Tanaman Pangan
ISSN : 25415166     EISSN : 25415174     DOI : 10.21082
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal Penelitian Pertanian Tanaman Pangan merupakan publikasi yang memuat makalah ilmiah primer hasil penelitian tanaman pangan (padi dan palawija). Redaksi menerima makalah dari peneliti Puslitbang Tanaman Pangan, Balai Pengkajian Teknologi Pertanian (BPTP), maupun perguruan tinggi. Makalah yang dikirimkan hendaknya sudah mendapat persetujuan dari pimpinan instansi masing-masing. Ketentuan penulisan makalah untuk dapat dimuat di jurnal ini tertera dalam "Author Guidelines/Petunjuk bagi Penulis" di halaman terakhir Jurnal Penelitian Pertanian.
Arjuna Subject : -
Articles 2 Documents
 1 
Search results for , issue " Vol 30, No 1 (2011): April 2011" : 2 Documents clear
Pengaruh Waktu Tanam dan Genotipe Padi Gogo terhadap Hasil D.H., Totok A.; Suwarto, Suwarto; Riyanto, A.; Susanti, D.; Kantun, I. N.; Suwarno, Suwarno
Jurnal Penelitian Pertanian Tanaman Pangan Vol 30, No 1 (2011): April 2011
Publisher : Pusat Penelitian dan Pengembangan Tanaman Pangan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (85.843 KB) | DOI: 10.21082/jpptp.v30n1.2011.p%p

Abstract

Upland rice plays an important role in supporting food security for community in dryland areas. Genotype × environment interaction is an important factor to be considered in the development of upland rice in Indonesia, because they affect rice yield stability. Genotype × environment interaction and yield stability of rice genotypes are important information to be considered for the development of upland rice. The study was conducted over two years on a dry land area of Banjarnegara, Central Java, using 10 genotypes of upland rice (UNRAM 1E, 4E UNRAM, UNRAM 17E, 9E UNRAM, Unsoed G10, G19 Unsoed, Unsoed G39, G136 Unsoed, B12644F-MR-2, B12498C-MR-1) and two varieties (Situ Patenggang and Way Rarem) as control. Data were analyzed using analysis of variance. Results showed that planting time affect yield and yield components of the upland rice tested. Effect of the genotype x planting time interaction was shown on plant height, flowering date, harvest age, and crop yields. The upland rice genotypes that showed a stable high yields over years of planting were UNRAM 4, Unsoed G10, G136 Unsoed, B12644F-MR-2, and Situ Patenggang and Way Rarem.
Efektivitas Kombinasi Amelioran dan Pupuk Kandang dalam Meningkatkan Hasil Kedelai pada Tanah Ultisol Sudaryono, Sudaryono; Wijanarko, Andy; Suyamto, Suyamto
Jurnal Penelitian Pertanian Tanaman Pangan Vol 30, No 1 (2011): April 2011
Publisher : Pusat Penelitian dan Pengembangan Tanaman Pangan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (92.299 KB) | DOI: 10.21082/jpptp.v30n1.2011.p%p

Abstract

Major constraint in soybean production on Ultisol soil includes: high soil acidity, veryhigh Al and Fe level, low organic matter, nutrient deficiency, low of base saturation and cation exchange capacity (CEC). This study was aimed at finding an optimal dose and combination of organic manure and soil ameliorants to achieve high yield of soybean in Ultisol soil in Lampung. The experiment was conducted in a greenhouse of the Indonesian Legumes and Tuber Crops Research Institute (ILETRI), Malang, East Java, and on a dry land of Rumbia district, Lampung Tengah, in the 2005 growing season. Four series of experiments were conducted in the greenhouse using four different ameliorants (dolomite, zeolite, limestone, and organic ameliorant Formula 1). The glasshouse trial was arranged in a completely randomized design with two factors and four replications. The first factor consisted of five ameliorant levels, namely 0, 150, 300, 450, and 600 kg/ha. The second factor consisted of four manure levels, namely 0, 500, 100, and 1500 kg/ha. In the field experiment, a randomized complete block design was used with four replications. Two ameliorants, dolomite and zeolite, were used and the treatment combinations were the same as those in the glasshouse trial. Results indicated that ameliorant zeolite, dolomite, limestone, and Formula 1 increased plant height, seed weight (yield/pot), and yield of soybean in the field. The effective dose of ameliorant application to achieve 2.0-2.5 t/ha soybean yield was a combination of 500-100 kg/ha manure and 150-450 kg/ha each one of the ameliorants dolomite, zeolite, lime or Formula 1. An effective way to apply the soil ameliorant was by placing it in the planting hole or by distributing it along the plant rows. The use of ameliorant in the form of organic Formula 1 can be reduced down to 2,500 kg/ha. The need of ameliorant in the form of natural mineral (dolomite, zeolite, limestone) can be reduced down to 1,500 kg/ha. Combinations of ameliorant with organic manure showed increase of the effectiveness of the amelioration on Ultisol soil. The optimum combination of soil ameliorant and organic manure was 500 to 1,000 kg/ha organic manure and 150 to 450 kg/ha ameliorant.

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