Effect of Rice Variety on Methane Emission from an Indonesian Paddy Field
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概要
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Variations in CH_4 emission from a Sumatra paddy field in which 8 popular modern varieties in Indonesia were grown were compared in the 1994/1995 rainy season. Total amounts of CH_4 emitted during the period of rice growth were in the ranges of 32.6-41.7 and 51.3-64.6 g CH_4 m^<-2> for the plots amended with chemical fertilizer only and those amended with both rice straw and chemical fertilizer, respectively. The mean CH_4 emission rate was highest in the plot with the variety Bengawan solo and lowest in the plots with the varieties Atomita-4 and Way seputih among the plots which received chemical fertilizer, while highest in the plot with Way seputih and lowest in the plot with Bengawan solo among the plots amended with both rice straw and chemical fertilizer. The increase in the mean CH_4 emission rates by rice straw application was higher for the plots planted with Way seputih (1.98 times) and Atomita-4 (1.77 times) than for the plots with Bengawan solo (1.23 times) and IR-64 (1.35 times). The plots with Walanai and Cisanggarung recorded intermediate mean emission rates and the increase in CH_4 emission by rice straw application was also intermediate (1.57-1.64 times). It was noteworthy that Way seputih and Atomita-4 were derived from the variety Cisadane, Bengawan solo and IR-64 from the variety IR-54, and Walanai and Cisanggarung from the varieties IR-36 and Pelita 1-1, respectively. The amounts of CH_4 emitted for 1kg grain production ranged from 53 (Atomita-4) to 74 (Kapuas and Walanai) and from 89-93 (IR-64, Bengawan solo, and Atomita-4) to 121 (Kapuas) g CH_4 kg^<-1> of grain for the plots amended with chemical fertilizer and those amended with rice straw and chemical fertilizer, respectively.
- 社団法人日本土壌肥料学会の論文
著者
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Kimura Makoto
School Of Agriculture Nagoya University
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Ardjasa Wayan
Faculty Of Agriculture Lampung University Bandar Lampung Sumatra Indonesia
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Nugroho S
Department Of Soil Science Faculty Of Agriculture University Of Lampung
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Nugroho Sutopo
Faculty Of Agriculture Nagoya University
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Lumbanraja Jamalam
Faculty of Agriculture, Lampung University
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Suprapto Hermanus
Faculty of Agriculture, Lampung University
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Lumbanraja Jamalam
Faculty Of Agriculture Lampung University Bandar Lampung Sumatra Indonesia
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Lumbanraja Jamalam
The Graduate School Of Science And Technology Faculty Of Science Niigata University
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Suprapto Hermanus
Faculty Of Agriculture Lampung University Bandar Lampung Sumatra Indonesia
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Kimura Makoto
School Of Agricultural Sciences Nagoya University
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