caa a22 4500 467903328 CHVBK 20180406152825.0 cr unu---uuuuu 170328e20060801xx s 000 0 eng 10.1007/s10661-005-9021-8 doi (NATIONALLICENCE)springer-10.1007/s10661-005-9021-8 Dynamics of Organic Carbon and Microbial Biomass in Alluvial Soil With Tillage and Amendments in Rice-wheat Systems [Elektronische Daten] [B. Banerjee, P. Aggarwal, H. Pathak, A. Singh, A. Chaudhary] Rice-wheat cropping systems of the Indo-Gangetic plains (IGP) occupying 12 million ha of productive land are important for the food security of South Asia. There are, however, concerns that yield and factor productivity trends in these systems are declining/stagnating in recent years. Decrease in soil organic carbon is often suggested as a reason for such trends. A field experiment was conducted to study the soil organic carbon (SOC) and soil microbial biomass carbon (MBC) dynamics in the rice-wheat systems. Use of organic amendments and puddling of soil before rice transplanting increased SOC and MBC contents. Microbial biomass carbon showed a seasonal pattern. It was low initially, reached its peak during the flowering stages in both rice and wheat and declined thereafter. Microbial biomass carbon was linearly related to SOC in both rice and wheat indicating that SOC could be used as a proxy for MBC. Springer Science + Business Media, Inc., 2006 crop residue nationallicence farmyard manure nationallicence green manure nationallicence long-term experiment nationallicence reduced tillage nationallicence soil fertility nationallicence Banerjee B. Division of Environmental Sciences, Indian Agricultural Research Institute, 110 012, New Delhi, India aut Aggarwal P. Division of Environmental Sciences, Indian Agricultural Research Institute, 110 012, New Delhi, India aut Pathak H. Unit of Simulation and Informatics, Indian Agricultural Research Institute, 110 012, New Delhi, India aut Singh A. Water Technology Center, Indian Agricultural Research Institute, 110 012, New Delhi, India aut Chaudhary A. Division of Environmental Sciences, Indian Agricultural Research Institute, 110 012, New Delhi, India aut Environmental Monitoring and Assessment Kluwer Academic Publishers 119/1-3(2006-08-01), 173-189 0167-6369 119:1-3<173 2006 119 10661 https://doi.org/10.1007/s10661-005-9021-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10661-005-9021-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Banerjee B. Division of Environmental Sciences, Indian Agricultural Research Institute, 110 012, New Delhi, India aut NATIONALLICENCE 700 1- Aggarwal P. Division of Environmental Sciences, Indian Agricultural Research Institute, 110 012, New Delhi, India aut NATIONALLICENCE 700 1- Pathak H. Unit of Simulation and Informatics, Indian Agricultural Research Institute, 110 012, New Delhi, India aut NATIONALLICENCE 700 1- Singh A. Water Technology Center, Indian Agricultural Research Institute, 110 012, New Delhi, India aut NATIONALLICENCE 700 1- Chaudhary A. Division of Environmental Sciences, Indian Agricultural Research Institute, 110 012, New Delhi, India aut NATIONALLICENCE 773 0- Environmental Monitoring and Assessment Kluwer Academic Publishers 119/1-3(2006-08-01), 173-189 0167-6369 119:1-3<173 2006 119 10661 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer