Precise irrigation water and nitrogen management improve water and nitrogen use efficiencies under conservation agriculture in the maize-wheat systems

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dc.creatorGupta, Naveen
dc.creatorSingh, Yadvinder
dc.creatorJat, Hanuman S.
dc.creatorSingh, Love K.
dc.creatorChoudhary, Kajod Mal
dc.creatorSidhu, Harminder S.
dc.creatorGathala, Mahesh K.
dc.creatorJat, Mangi L.
dc.date2023
dc.date2023-08-09T16:38:56Z
dc.date2023-08-09T16:38:56Z
dc.date.accessioned2026-06-27T14:52:27Z
dc.descriptionA 3-year field experiment was setup to address the threat of underground water depletion and sustainability of agrifood systems. Subsurface drip irrigation (SDI) system combined with nitrogen management under conservation agriculture-based (CA) maize-wheat system (MWS) effects on crop yields, irrigation water productivity (WPi), nitrogen use efficiency (NUE) and profitability. Grain yields of maize, wheat, and MWS in the SDI with 100% recommended N were significantly higher by 15.8%, 5.2% and 11.2%, respectively, than conventional furrow/flood irrigation (CT-FI) system. System irrigation water savings (~ 55%) and the mean WPi were higher in maize, wheat, and MWS under the SDI than CT-FI system. There was saving of 25% of fertilizer N in maize and MWS whereas no saving of N was observed in wheat. Net returns from MWS were significantly higher (USD 265) under SDI with 100% N (with no subsidy) than CT-FI system despite with higher cost of production. The net returns were increased by 47% when considering a subsidy of 80% on laying SDI system. Our results showed a great potential of complementing CA with SDI and N management to maximize productivity, NUE, and WPi, which may be economically beneficial and environmentally sound in MWS in Trans-IGP of South Asia.
dc.formatapplication/pdf
dc.identifierhttps://hdl.handle.net/10568/131519
dc.identifier.urihttp://hdl.handle.net/123456789/89145
dc.languageen
dc.publisherSpringer
dc.rightsOpen Access
dc.sourceGupta, N., Singh, Y., Jat, H. S., Singh, L. K., Choudhary, K. M., Sidhu, H. S., Gathala, M. K., & Jat, M. L. (2023). Precise irrigation water and nitrogen management improve water and nitrogen use efficiencies under conservation agriculture in the maize-wheat systems. Scientific Reports, 13(1). https://doi.org/10.1038/s41598-023-38953-6
dc.subjectirrigation water
dc.subjectnitrogen-use efficiency
dc.subjectconservation agriculture
dc.subjectmaize
dc.subjectwheat
dc.titlePrecise irrigation water and nitrogen management improve water and nitrogen use efficiencies under conservation agriculture in the maize-wheat systems
dc.typeJournal Article

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Instituto Internacional de Investigación de Cultivos para las Zonas Tropicales Semiáridas (ICRISAT)