Kurniawan Subatra
Program Magister Ilmu Tanaman FP Universitas Sriwijaya

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Pengaruh Sisa Amelioran, Pupuk N dan P terhadap Ketersediaan N, Pertumbuhan dan Hasil Tanaman Padi di Musim Tanam Kedua pada Tanah Gambut Subatra, Kurniawan
Jurnal Lahan Suboptimal Vol 2, No 2 (2013)
Publisher : Jurnal Lahan Suboptimal

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Abstract

The objective of this research was to know the residual effect of Ameliorant and N, P-fertilizer on availability of nitrogen, growth, and rice yield on the second of season planting on peat soil. This research was conducted from May 2006 until September 2006 at Green House of Soil Department of Agriculture Faculty, Sriwijaya University. This research use Randomized Completely Block Factorial Design with three factors of treatment and three applications. First treatment was two dosages (0 and 5 ton/ha) of ameliorant that was consist of organic manure and dolomite and the second and third was three dosages (0, 50, 100 kg/ha) of N and P-fertilizer. Result of experiment showed that ameliorant, N and P-fertilizer with their combination have given significant effect on availability of nitrogen, but haven’t given significant effect on growth and rice yield on the second season cropping on peat soil.
Adaptasi Beberapa Varietas Unggul Kedelai yang Berdaya Hasil Tinggi dengan Pemberian Dolomit dan Urea di Lahan Pasang Surut Susilawati, Susilawati; Subatra, Kurniawan; Suwigno, Rujito Agus; Hayati, Renih
Jurnal Lahan Suboptimal Vol 3, No 2 (2014)
Publisher : Jurnal Lahan Suboptimal

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Abstract

Efforts to improve soybean productivity in tidal land, including through land improvement (amelioration) as of lime, use of improved varieties and the fulfillment of plant nutrients. This study aims to determine the adaptation of some soybean varieties for high yield in the tidal land. Research activities conducted in tidal land Banyu Urip Village Subdistrict Tanjung Lago Banyuasin District from July to September 2013 design used is Split Split Plot Design consisting of 3 factors with 3 replications. Main plots were dose Dolomite (D0= 0 ton/ha dolomite, D1= 2 ton/ha dolomite), subplots were dose of urea (P1= 25 kg/ha urea, P2= 50 kg/ha urea, P2= 75 kg/ha urea) and the plot is children soybean varieties (V1= Argomulyo, V2= Anjasmoro, V3= Tanggamus). Variables measured were plant height 17 DAT, plant height 7 MST, leaf chlorophyll and number of branches. The results showed that the varieties that produce Argomulyo plant height, leaf chlorophyll content, and the number of branches is better than the soybean crop varieties Tanggamus and Anjosmoro. Thus soybean varieties are more adaptive Argomulyo planted in tidal land.