Nugroho, Ghani Sutopo and Sunyoto, . and Lumbanraja, Jamalam and Suprapto, Hermanus and Arjasa, Wayan Sabe and Kimura, Makoto (1997) Effect of rice variety on methane emission from an Indonesian paddy field. Soil Science and Plant Nutrition, 43 (4). pp. 799-809. ISSN 0038-0768

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Abstract

Variations in CH4 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. emitted during the period of rice growth were in the ranges of 32.6-41.7 and 51.3-64.6 g CH. m-for the plots amended with chemical fertilizer only and those amended with both rice straw and chemical fertilizer, respectively. The mean CH4 2 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. 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 inter­ mediate mean emission rates and the increase in CH4 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 CH4. emitted for 1 kg 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 CH4 kg-1 of grain for the plots amended with chemical fertilizer and those amended with rice straw and chemical fertilizer, respectively.

Item Type:	Article
Subjects:	S Agriculture > S Agriculture (General)
Divisions:	Fakultas Pertanian (FP) > Prodi Ilmu Tanah
Depositing User:	SUTOPO GHA
Date Deposited:	21 Oct 2016 03:55
Last Modified:	21 Oct 2016 03:55
URI:	http://repository.lppm.unila.ac.id/id/eprint/842

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