Nitrous oxide emission and mitigation from maize–wheat rotation in the upper Indo-Gangetic Plains
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Title |
Nitrous oxide emission and mitigation from maize–wheat rotation in the upper Indo-Gangetic Plains
Not Available |
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Creator |
Ram Kishor Fagodiya
Himanshu Pathak Arti Bhatia Niveta Jain Dipak Kumar Gupta Amit Kumar Sandeep K. Malyan Rachana Dubey Sheetal Radhakrishanan Ritu Tomer |
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Subject |
Indo-Gangetic Plains
maize–wheat rotation nitrous oxide emission grain yield |
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Description |
Not Available
Due to its lower water requirement, methane emission and soil degradation, a maize–wheat rotation (MWR) may be a more attractive alternative to rice–wheat rotation (RWR), in the upper Indo-Gangetic plains (IGP) of India. However, N2O emission from MWR needs to be quantified to propose management practices for N2O mitigation. A field experiment was conducted at the Indian Council of Agricultural Research-Indian Agricultural Research Institute (ICAR-IARI), New Delhi, to assess the impacts of various N sources on N2O emission and its mitigation from the MWR. Six treatments –N0 (control), urea, urea þ farmyard manure (FYM), FYM, urea þ nitrification inhibitor (NI) and neem oil coated urea (NOCU) were investigated during 2012–2014. Results show ranges of N2O-N emissions from MWR of 0.59–0.69, 1.82–1.86, 1.81–1.85, 1.71–1.77, 1.38–1.52, 1.57–1.61 during 2012–2013, and of 0.62–0.68, 1.86–1.90, 1.78–1.84, 1.72–1.76, 1.40–1.46, 1.52–1.60 during 2013–2014, for N0, urea, urea þ FYM, FYM, ureaþ NI and NOCU treatments, respectively. The 2-year pooled N2O-N emission of MWR decreased by 23% in ureaþ NI and by 16% in NOCU with higher grain yield as compared to conventional urea application. Application of FYM with urea and FYM alone also reduced N2O-N emission; however, the grain yields of these treatments were decreased. Thus, the study suggests that the application of NOCU and NI with urea can mitigate N2O-N emissions from the maize and wheat crops. Hence, the use of NOCU and application of NI with urea could be a better option to mitigate N2O-N emissions from MWR of the upper IGP of India Not Available |
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Date |
2019-10-22T14:56:13Z
2019-10-22T14:56:13Z 2019-08-01 |
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Type |
Article
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Identifier |
Fagodiya R K, Pathak H, Bhatia A, Jain N, Gupta D K, Kumar A, Malyan S K, Dubey R, Radhakrishanan S and Tomer R. 2019. Nitrous oxide emission and mitigation from maize–wheat rotation in the upper Indo-Gangetic Plains, Carbon Management, 10(5): 489-499.
Not Available http://krishi.icar.gov.in/jspui/handle/123456789/23853 |
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Language |
English
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Relation |
Not Available;
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Publisher |
Taylor and Francis
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