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022 _a0301-4797
022 _a1095-8630 (Online)
024 8 _ahttps://doi.org/10.1016/j.jenvman.2024.123448
040 _aMX-TxCIM
041 _aeng
100 1 _aJat, H.S.
_95697
245 1 2 _aA decade of conservation agriculture in intensive cereal systems :
_bTransitioning to soil resilience and stable yield trends in a climate crisis
260 _aUnited States of America :
_bElsevier Ltd.,
_c2025.
500 _aPeer review
520 _aClimate change jeopardizes the food security gains achieved in India since the Green Revolution, especially by impacting the productivity of the rice-wheat system in the Indo-Gangetic Plain, a region that serves as the ‘breadbasket’ of South Asia. In this study, we characterized the potential of long-term conservation agriculture (CA) based management practices (i.e., no-tillage, residue retention, and diversified rotations) to stabilize and enhance crop yields in Northwest India. The study consisted of six different production scenarios (Sc) namely Sc I: conventional rice-wheat system; Sc II: partial CA-puddled transplanted rice-zero till wheat-zero till mung bean (TPR-ZTWMb); Sc III: CA-based zero-till direct seeded rice-zero till wheat-zero till mung bean (ZTDSR-ZTWMb); Sc IV: CA-based zero till maize-zero till wheat-zero till mung bean (ZTM-ZTWMb); Sc V: Sc III + subsurface drip irrigation (SSDI); and Sc VI: Sc IV + SSDI. Long-term yield analysis indicated that the CA-based maize-wheat-mung bean system with SSDI (Sc VI) produced approximately 12%, 27% and 35% higher rice equivalent yield (REY), wheat yield and overall system yield, respectively, over to Sc I. Our study examines Wricke's ecovalence index (Wi2) and the sustainability yield index (SYI) to gauge long-term yield stability and sustainability. Consistently higher wheat yields with lower Wi2 and higher SYI were recorded in CA-based scenarios (Sc V: Wi2 = 0.82, SYI = 0.81; Sc VI: Wi2 = 0.85 and SYI = 0.82). CA-based scenarios also demonstrated stable REY over time. The soil physical properties were influenced by CA systems and compared to Sc I, bulk density was −5.89% in Sc V, followed by −3.62% in Sc III and −1.73% in Sc VI. Moreover, CA systems, Sc IV, Sc VI, and Sc V exhibited positive responses by +106%, +99 % and +72%, respectively for water infiltration rates. Overall, soil organic carbon was +83% and +69% with Sc VI and Sc V, respectively than in Sc I. By substantially enhancing soil health and crop productivity, as well as boosting resilience, CA emerges as a promising solution for meeting the increasing food demand in Northwest India and beyond.
546 _aText in English
591 _aMcDonald, A. : Not in IRS staff list but CIMMYT Affiliation
597 _bTransforming Agrifood Systems in South Asia
_bExcellence in Agronomy
_dCGIAR Trust Fund
_dIndian Council of Agricultural Research (ICAR)
_aNutrition, health & food security
_cResilient Agrifood Systems
_uhttps://hdl.handle.net/10568/169496
650 7 _aCereals
_2AGROVOC
_91036
650 7 _aConservation agriculture
_2AGROVOC
_92619
650 7 _aSoil chemicophysical properties
_2AGROVOC
_91824
650 7 _aSubsurface irrigation
_2AGROVOC
_97144
650 7 _aSustainability
_2AGROVOC
_91283
650 7 _aYield stability
_2AGROVOC
_932749
650 7 _aWheat
_2AGROVOC
_91310
650 7 _aRice
_2AGROVOC
_91243
700 1 _aKhokhar, S.
_937837
700 1 _aPrajapat, K.
_925607
700 1 _aChoudhary, M.
_95351
700 1 _aKakraliya, M.
_925535
700 1 _aGora, M.K.
_926318
700 1 _aGathala, M.K.
_gSustainable Agrifood Systems
_8INT3262
_9911
700 0 _aParbodh Chander Sharma
_937838
700 1 _aMcDonald, A.
_gSustainable Intensification Program
_8INT3034
_9883
700 1 _aLadha, J.K.
_8001711567
_gFormerly Sustainable Agrifood Systems
_9168
700 1 _aJat, M.L.
_gFormerly Sustainable Agrifood Systems
_8INT3072
_9889
773 0 _tJournal of Environmental Management
_gv. 373, art. 123448
_dUnited States of America : Elsevier Ltd., 2025.
_x0301-4797
_wG444534
942 _cJA
_n0
_2ddc
999 _c68429
_d68421