caa a22 4500 477112463 CHVBK 20180405111613.0 cr unu---uuuuu 170330e19960901xx s 000 0 eng 10.1007/BF00011448 doi (NATIONALLICENCE)springer-10.1007/BF00011448 Methane flux from rice/wheat agroecosystem as affected by crop phenology, fertilization and water level [Elektronische Daten] [J. Singh, Smita Singh, A. Raghubanshi, Saranath Singh, A. Kashyap] Methane flux was measured for a rice/wheat agroecosystem of Gangetic Plains, with and without application of chemical fertilizer and wheat straw (WS). Three treatments of control, fertilizer application and fertilizer + WS application, were established in a completely randomized block design and measurements were made for two consecutive years (1993 and 1994). CH4 measurements during growth of the rice crop period showed that there were significant difference in flux rates during the two years. Maximum emission occurred at the time of anthesis and minimum at the seedling stage. The flux rates were significantly higher for fertilizer or fertilizer + WS treatments. The effects of the treatments were similar across phenological stages and years. In the subsequent wheat crop and fallow period, the soils consumed CH4. There were significant differences in CH4 uptake rates between the two years. Fertilizer treatments reduced CH4 uptake in both the years. The results suggested that tropical agroecosystems may consume substantial amounts of CH4 and that the methane output can be reduced by lowering the submergence level in rice paddies. Kluwer Academic Publishers, 1996 agroecosystem nationallicence fertilizer treatment nationallicence methane flux nationallicence phenology nationallicence water level nationallicence Singh J. Department of Botany, Banaras Hindu University, 221005, Varanasi, India aut Singh Smita Department of Botany, Banaras Hindu University, 221005, Varanasi, India aut Raghubanshi A. Department of Botany, Banaras Hindu University, 221005, Varanasi, India aut Singh Saranath Department of Botany, Banaras Hindu University, 221005, Varanasi, India aut Kashyap A. Department of Botany, Banaras Hindu University, 221005, Varanasi, India aut Plant and Soil Kluwer Academic Publishers; http://www.wkap.nl 183/2(1996-09-01), 323-327 0032-079X 183:2<323 1996 183 11104 https://doi.org/10.1007/BF00011448 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00011448 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Singh J. Department of Botany, Banaras Hindu University, 221005, Varanasi, India aut NATIONALLICENCE 700 1- Singh Smita Department of Botany, Banaras Hindu University, 221005, Varanasi, India aut NATIONALLICENCE 700 1- Raghubanshi A. Department of Botany, Banaras Hindu University, 221005, Varanasi, India aut NATIONALLICENCE 700 1- Singh Saranath Department of Botany, Banaras Hindu University, 221005, Varanasi, India aut NATIONALLICENCE 700 1- Kashyap A. Department of Botany, Banaras Hindu University, 221005, Varanasi, India aut NATIONALLICENCE 773 0- Plant and Soil Kluwer Academic Publishers; http://www.wkap.nl 183/2(1996-09-01), 323-327 0032-079X 183:2<323 1996 183 11104 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer