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Impact of long-term resource conservation techniques on biogeochemical characteristics and biological soil quality indicators in a rice green-gram farming system

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Title Impact of long-term resource conservation techniques on biogeochemical characteristics and biological soil quality indicators in a rice green-gram farming system
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Creator Pradeep Kumar Dash
Pratap Bhattacharyya
Mohammad Shahid
Upendra Kumar
Soumya Ranjan Padhy
Chinmaya Kumar Swain
Priyanka Bihari
Amaresh Kumar Nayak
 
Subject agroecology
microbial activity
microbial biomass
relative yield
resource conservation technology
rice-green gram
 
Description Not Available
Nutrient management in resource conservation practices influence the structural and functional microbial diversities and thereby affect biological processes and biochemical properties in soil. We studied the long-term effects of resource conservation technologies on functional microbial diversity and their interactions with soil biochemical properties and enzymatic activities in tropical rice-green gram cropping system. The experiment includes seven treatments viz., conventional practice (CC), brown manuring (BM), green manuring (GM), wet direct drum sowing, zero tillage, green manuring-customized leaf colour chart based-N application (GM-CLCC-N) and biochar (BC) application. The result of the present study revealed that microbial biomass nitrogen (N), carbon (C) and phosphorus (P) in GM practice were increased by 23.3, 37.7 and 35.1%, respectively than CC. GM, BM and GM-CLCC-N treatments provide higher yields than conventional practice. The average well color development value, Shannon index and McIntosh index were significantly higher by 26.6%, 86.9% and 29.2% in GM as compared to control treatment. So, from this study we can conclude that resource conservation practices like GM, GM-CLCC N and BM in combination with chemical fertilizers provide easily decomposable carbon source to support the microbial growth. Moreover, dominance of microbial activity in biomass amended treatments (GM, GM-CLCC N and BM) indicated that these treatments could supply good amount of labile C sources on real time basis for microbial growth that may protect the stable C fraction in soil, hence could support higher yield and soil organic carbon build-up in long run under rice-green gram soil.
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Date 2024-04-01T15:11:08Z
2024-04-01T15:11:08Z
2023-07-29
 
Type Research Paper
 
Identifier Dash, P.K., Bhattacharyya, P., Shahid, M., Kumar, U., Padhy, S.R., Swain, C.K., Senapati, A., Bihari, P. and Nayak, A.K., 2023. Impact of long-term resource conservation techniques on biogeochemical characteristics and biological soil quality indicators in a rice green-gram farming system. Environmental Geochemistry and Health, 45(11), pp.7979-7997.
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http://krishi.icar.gov.in/jspui/handle/123456789/81747
 
Language English
 
Relation Not Available;
 
Publisher Springer Link