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Greenhouse gases emissions and agronomic productivity as influenced by varying levels of N fertilizer and tank silt in degraded semiarid Alfisol of Southern India

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Title Greenhouse gases emissions and agronomic productivity as influenced by varying levels of N fertilizer and tank silt in degraded semiarid Alfisol of Southern India
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Creator Sharan Bhoopal Reddy
Cherukumalli Srinivasarao
Palli Chandrasekhar Rao
Rattan Lal, Suresh Rakesh
Sumanta Kundu
Ram Nagina Singh
Pradeep Kumar Dubey
Purushothaman Chirakkuzhyil Abhilash
Kondru Venkateswara Rao
Vikas Abrol
Jayaraman Somasundaram
 
Subject Alfisol, fertilizer N, GHG fluxes, maize-horsegram, soil restoration, tank silt amendment
 
Description Not Available
The study aimed to assess the effects of combined application of urea nitrogen (N) and tank* silt (TS) on greenhouse gases (GHG) emissions [i.e., carbon dioxide (CO2) and nitrous oxide (N2O)] and agronomic productivity of maize-horsegram system. A factorial [urea (0, 60, 120, and 180 kg N ha−1)] and tank silt (0 and 30 t ha−1) replicated thrice randomized block design was employed for this investigation. Results of the study showed that maize grain yield was significantly influenced by the sole application of both N fertilizer and TS. When both the N fertilizer and TS were combined, the grain yield was significantly (p  N60 > N0. However, N fertilizer application influenced the cCO2 emissions (r = 0.83), and significantly increased the cN2O emission (r = 0.99). Therefore, optimum and timely application of urea combined with TS is recommended as an effective strategy to combat GHG-based emissions (specifically N2O based) in semiarid rainfed regions.
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Date 2024-01-04T09:57:11Z
2024-01-04T09:57:11Z
2022-11-23
 
Type Research Paper
 
Identifier Not Available
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http://krishi.icar.gov.in/jspui/handle/123456789/81152
 
Language English
 
Relation Not Available;
 
Publisher Not Available