CGSpaceA Repository of Agricultural Research Outputs
    View Item 
    •   CGSpace Home
    • CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS)
    • CCAFS Journal Articles
    • View Item
       
    • CGSpace Home
    • CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS)
    • CCAFS Journal Articles
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Reducing Global Warming Potential through Sustainable Intensification of Basmati Rice-Wheat Systems in India

    Thumbnail
    
    Authors
    Sapkota, Tek
    Shankar, Vivek
    Rai, Munmun
    Jat, Mangi L.
    Stirling, Clare M.
    Singh, Love K
    Jat, Hanuman S.
    Grewal, Mohinder S
    Date
    2017-05
    Language
    en
    Type
    Journal Article
    Accessibility
    Open Access
    Metadata
    Show full item record
    Share
    Citation
    Sapkota TB, Shankar V, Rai M, Jat ML, Stirling CM, Singh LK, Jat HS, Grewal MS. 2017. Reducing Global Warming Potential through Sustainable Intensification of Basmati Rice-Wheat Systems in India. Sustainability 9:1044.
    Permanent link to cite or share this item: http://hdl.handle.net/10568/83302
    DOI: http://dx.doi.org/10.3390/su9061044
    Abstract/Description
    This study examines the effects of tillage, residue management and cropping system intensification through the inclusion of green gram on the performance of the rice-wheat (RW) system in NW India. We hypothesized that zero tillage (ZT) with residue retention provides a means of sustainably intensifying the RW system through lower production costs and higher economic profitability, whilst at the same time minimizing soil and environmental trade-offs. To test this hypothesis, we evaluated six combinations of tillage, residue management and green gram integration in RW rotation in northwest Indo-Gangetic Plains (IGP) of India. Treatments included in the study were: rice and wheat under conventional tillage (CT) with and without green gram (CTR-CTW, CTR-CTW+GG), both crops under zero-tillage (ZT) with and without green gram (ZTR-ZTW-R, ZTR-ZTW-R+GG) and both crops under ZT plus residues with and without green gram (ZTR-ZTW+R, ZTR-ZTW+R+GG). Based on two consecutive years of data, the net return from the RW system was significantly higher in the ZT than CT systems. Methane emissions were only observed under flooded conditions in CT rice plots; otherwise, emissions were negligible in all other treatment combinations. N2O emissions were dictated by N fertilizer application with no other treatment effects. Overall, ZT with residue retention resulted in the lowest global warming potential (GWP) ranging from −3301 to −823 kg CO2-eq ha−1 year−1 compared to 4113 to 7917 kg CO2-eq ha−1 year−1 in other treatments. Operational inputs (tillage, planting, and irrigation) and soil C sequestration had significant effects on total GWP. The water footprint of RW production system was about 29% less in CA-based system compared to CT-based systems. Our study concludes that ZTR-ZTW+R and ZTR-ZTW+R+GG in RW systems of northwestern IGP have the potential to be agronomically productive, economically viable with benefits also for the environment in terms of soil health and GHG emissions.
    CGIAR Author ORCID iDs
    Tek Sapkotahttps://orcid.org/0000-0001-5311-0586
    Vivek Shankarhttps://orcid.org/0000-0002-8320-4871
    Clare Stirlinghttps://orcid.org/0000-0002-0025-1542
    CGIAR Affiliations
    Climate Change, Agriculture and Food Security
    AGROVOC Keywords
    FOOD SECURITY; AGRICULTURE; CLIMATE CHANGE; GREENHOUSE GASES; EMISSION; SUSTAINABILITY
    Subjects
    LOW EMISSIONS DEVELOPMENT;
    Countries
    INDIA
    Regions
    ASIA; SOUTH ASIA
    Collections
    • CCAFS Journal Articles [801]

    AboutPrivacy policySend Feedback
     

    My Account

    LoginRegister

    Browse

    All of CGSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesBy AGROVOC keywordBy ILRI subjectBy CPWF subjectBy CCAFS subjectBy CIFOR subjectBy IWMI subjectBy RegionBy CountryBy SubregionBy CRP subjectBy River basinBy Output typeBy CTA subjectBy WLE subjectBy Bioversity subjectBy CIAT subjectBy CIP subjectBy animal breedBy CGIAR System subjectThis CollectionBy Issue DateAuthorsTitlesBy AGROVOC keywordBy ILRI subjectBy CPWF subjectBy CCAFS subjectBy CIFOR subjectBy IWMI subjectBy RegionBy CountryBy SubregionBy CRP subjectBy River basinBy Output typeBy CTA subjectBy WLE subjectBy Bioversity subjectBy CIAT subjectBy CIP subjectBy animal breedBy CGIAR System subject

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    AboutPrivacy policySend Feedback