000			02960nab a22004217a 4500
999			_c61408 _d61400
001			61408
003			MX-TxCIM
005			20240919020917.0
008			200221s2020 xxk|||p|op||| 00| 0 eng d
022			_a0365-0340
022			_a1476-3567 (Online)
024	8		_ahttps://doi.org/10.1080/03650340.2019.1708332
040			_aMX-TxCIM
041			_aeng
100	1		_aSapkota, T.B. _gSustainable Intensification Program _gSustainable Agrifood Systems _8INT3361 _9940
245	1	0	_aIdentifying optimum rates of fertilizer nitrogen application to maximize economic return and minimize nitrous oxide emission from rice–wheat systems in the Indo-Gangetic Plains of India
260			_aUnited Kingdom : _bTaylor & Francis, _c2020.
500			_aPeer review
500			_aOpen Access
520			_aRice–wheat (RW) cropping system in India is a major source of N2O emissions. In such system, defining N rates that deliver minimal N2O emissions and economically optimum yield would benefit both food production and the environment. We measured yield and N2O fluxes from RW systems in Northwest IGP under two tillage systems and five N rates (0, 75, 150, 225 and 300 kg N ha−1) for both rice and wheat using static chamber method. Seasonal pattern of N2O emission was mainly influenced by fertilizer and water application events with no significant effect of tillage systems. Mean annual N2O emission from RW system was 1.49 kg N ha−1 in N75 plot and 2.97–3.04 in the plots receiving ≥150 kg N ha−1. On average, the yield-scaled N2O emissions of rice and wheat were 0.25 and 0.52 kg N2O–N mg−1, respectively. Our finding suggests that N rates between 120–200 kg N ha−1 in rice and 50–185 kg ha−1 in wheat provide the most economical returns and application rates beyond these ranges would be both economically and environmentally unsustainable. Within the range of N rate studied, fertilizer-induced N2O-EF for rice and wheat were 0.41% and 0.79%, respectively.
526			_aCCAFS
546			_aText in English
650		7	_2AGROVOC _94669 _aNitrous oxide
650		7	_2AGROVOC _911417 _aEmission
650		7	_2AGROVOC _98210 _aGreenhouse gas emissions
650		7	_aCropping systems _gAGROVOC _2 _91068
651		7	_2AGROVOC _93726 _aIndia
700	1		_91492 _aSingh, L.K.
700	1		_95698 _aYadav, A.K.
700	1		_8I1706974 _91402 _aKhatri-Chhetri, A. _gBorlaug Institute of South Asia
700	1		_95697 _aJat, H.S.
700	1		_92439 _aSharma, P.C.
700	1		_aJat, M.L. _gFormerly Sustainable Intensification Program _gFormerly Sustainable Agrifood Systems _8INT3072 _9889
700	1		_8INT3349 _9930 _aStirling, C. _gSustainable Intensification Program
773	0		_dUnited Kingdom : Taylor & Francis, 2020. _gv. 66, no. 14, p. 2039-2054 _tArchives of Agronomy and Soil Science _w94785 _x0365-0340
856	4		_yOpen Access through DSpace _uhttps://hdl.handle.net/10883/20782
942			_2ddc _cJA _n0