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Carbon fractions and productivity under changed climate scenario in soybean–wheat system

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Title Carbon fractions and productivity under changed climate scenario in soybean–wheat system
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Creator 25. Manna, M.C., Bhattacharrya, P., Adhya, T.K., Singh, M., Wnajari, R.H., Ramana, S., Sammi Reddy, K., Subba Rao, A., Sisodia, R.S., Dongre, M., Jha, P., Neogi, S., Roy, K. S., Rao, K. S., Sawarkar, S. D. and Rao, V. R.
 
Subject Climate change Labile carbon Long term experiment Microbial composition Particulate organic matter carbon Soil aggregates Soybean–wheat
 
Description Not Available
Global climate change is anticipated to have a tremendous influence on crop productivity and nutrient
cycling in legume-based cropping systems. The effect of long-term application of manure and fertilizers
on the dynamics of soil organic carbon (SOC) pools and soil physical properties was studied in a soybean
(Glycine max Merr. L)–wheat (Triticum aestivum L.) system. The temperature sensitivity of C pools and
the alterations in microbial composition were determined at 25, 35, and 45 ◦C. Higher levels of microbial
biomass C (MBC) and nitrogen (MBN), water soluble carbon (WSC), acid hydrolysable carbohydrates
(AHC), particulate organic matter carbon (POMC) and nitrogen (POMN) were observed in the NPK + FYM at
a depth of 0–15 cm. Irrespective of the treatment, micro aggregates (53–250 m) were a major aggregate
size class, comprising 45–57% of the total soil aggregates, followed by macro aggregates (250–2000 m
at 37.8–45%). Microbial respiration rate increased by 13.9% in most recalcitrant pools (
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Date 2021-08-21T04:50:57Z
2021-08-21T04:50:57Z
2013-02-04
 
Type Research Paper
 
Identifier Not Available
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http://krishi.icar.gov.in/jspui/handle/123456789/58987
 
Language English
 
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Publisher Not Available