Author:
FAGODIYA R K,PATHAK H,BHATIA A,JAIN N,GUPTA D K
Abstract
The maize (Zea mays L.) - wheat (Triticum aestivum L.) cropping system (MWCS) could be better alternative to rice-wheat cropping system (RWCS), due to its lower water requirement, methane (CH4) emission and soil degradation. However, the global warming potential (GWP), greenhouse gas intensity (GHGi) and benefit cost ratio (BCR) of the MWCS need to be quantified in order to propose management practices for GWP mitigation. To achieve the objective of the study a field experiment was conducted at the ICAR-IARI, New Delhi during 2012-14. The experiment consisted of six treatments, viz. N0 (control), Urea, Urea+FYM, FYM, Urea+NI (nitrification inhibitor) and NOCU (neem oil coated urea). Two-year average results showed that as compared to urea treatment, GWP of MWCS lowered by 6, 16, 31 and 62% in urea+NI, NOCU, Urea+FYM and FYM, respectively. GHGi lowered by 6, 6, 24 and 46% in urea+NI, NOCU, Urea+FYM and FYM, respectively. The BCR was higher in NOCU and Urea+NI as compared to urea treatment; however, it was lower in FYM and urea+FYM. Thus, NOCU is capable for mitigating GWP and lowering GHGi with higher BCR from MWCS.
Publisher
Indian Council of Agricultural Research, Directorate of Knowledge Management in Agriculture
Subject
Agronomy and Crop Science
Reference24 articles.
1. Bhatia A, Sasmal S, Jain N, Pathak H, Kumar R and Singh A. 2010. Mitigating nitrous oxide emission from soil under conventional and no-tillage in wheat using nitrification inhibitors. Agriculture, Ecosystems and Environment 136: 247–53.
2. Dhillon B S, Kataria P and Dhillon P K. 2010. National food security vis-à-vis sustainability of agriculture in high crop productivity regions. Current Science 98: 33–6.
3. 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): 489–99.
4. Fagodiya R K, Pathak H, Bhatia A, Kumar A, Singh S D, Jain N and Harith R. 2017. Simulation of maize (Zea mays L.) yield under alternative nitrogen fertilization using Infocrop-maize model. Biochemical and Cellular Archives 17(1): 65–71.
5. Fagodiya R K, Pathak H, Kumar A, Bhatia A and Niveta J. 2017. Global temperature change potential of nitrogen use in agriculture: A 50-year assessment. Scientific Reports 7: 44928; doi:10.1038/srep44928.