Seasonal Change of Rice-mediated Methane Emission from a Rice Paddy under Different Water Management and Organic Amendments
2003
Shin, Y.K. (National Institute of Agricultural Science and Technology, Suwon, Republic of Korea) | Lee, Y.S. | Ahn, J.W. | Koh, M.H. | Eom, K.C. (Rural Development Administration, Suwon, Republic of Korea)
Methane emission was measured in a rice paddy under different wear management and organic amendments. Methane emission from planted chambers and unplanted chambers was monitored to evaluate the rice-mediated methane emission, In flooding methane emission from planted chambers with NPK, NPK(+P),was 0.174 g CH4m-2d-1,while that from unplanted chambers with NPK, NPK(-P), was 0.046 g CH4m-2d-1 . Methane emission from planted chambers with rice straw compost amendment, RSC(+P), was 0.214 g CH4m-2d-1 , while that from unplanted chambers with rice straw compost amendment, RSC(-P), was 0.076 g CH4m-2d-1 . Methane emission from planted chambers with rice straw amendment in February, RS2(+P), was 0.328 g CH4m-2d-1,while that from unplanted chambers with rice straw amendment in February, RS2(-P), was 0.1 g CH4m-2 d-1 . methane emission from planted chmabers with rice straw amendment in May, RS5(+P), was 0.414 g CH4 m-2d-1, while that from unplanted chambers with rice straw amendment in May, RS5(-P), was 0.187 g CH4m-2d-1.
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