Methane emission from two Indian soils planted with different rice cultivars |
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| Authors: | Shalini Singh S Kumar M C Jain |
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| Institution: | (1) Division of Environmental Sciences, Indian Agricultural Research Institute, New Delhi-110012, India, IN |
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| Abstract: | In a greenhouse study, methane emissions were measured from two diverse Indian rice-growing soils planted to five rice cultivars
under similar water regimes, fertilizer applications and environmental conditions. Significant variations were observed in
methane emitted from soils growing different cultivars. Total methane emission varied between 8.04 and 20.92gm–2 from IARI soil (Inceptisol) and between 1.47 and 10.91gm–2 from Raipur soil (Vertisol) planted to rice. In all the cultivars, emissions from IARI soil were higher than from Raipur
soil. The first methane flux peak was noticed during the reproductive phase and the second peak coincided with the grain-ripening
stage of the rice cultivars.
Received: July 7, 1996 |
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| Keywords: | Methane emission Wetland soils Greenhouse gases Inceptisol Vertisol Rice Oryza sativa |
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