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dc.contributorRao, Idupulapatien_US
dc.contributorNakahara, K.en_US
dc.contributorAndo, Y.en_US
dc.contributorSahrawat, Kanwar Lalen_US
dc.contributorTesfamariam, T.en_US
dc.contributorLata, Jean-Christopheen_US
dc.contributorBoudsocq, Simonen_US
dc.contributorMiles, John W.en_US
dc.contributorIshitani, Manabuen_US
dc.contributorPeters, Michaelen_US
dc.creatorSubbarao, G. V.en_US
dc.identifier.citationG. V. Subbarao, Idupulapati Rao, K. Nakahara, Y. Ando, Kanwar Lal Sahrawat, T. Tesfamariam, Jean-Christophe Lata, Simon Boudsocq, John W. Miles, Manabu Ishitani, Michael Peters. (29/11/2013). Nitrogen management in grasslands and forage-based production systems – Role of biological nitrification inhibition (BNI). Tropical Grasslands-Forrajes Tropicales, 1 (2), pp. 168-174.en_US
dc.description.abstractNitrogen (N), the most critical and essential nutrient for plant growth, largely determines the productivity in both extensive and intensive grassland systems. Nitrification and denitrification processes in the soil are the primary drivers of generating reactive N (NO3, N2O and NO), largely responsible for N loss and degradation of grasslands. Suppressing nitrification can thus facilitate retention of soil N to sustain longterm productivity of grasslands and foragebased production systems. Certain plants can suppress soil nitrification by releasing inhibitors from roots, a phenomenon termed ‘biological nitrification inhibition’ (BNI). Recent methodological developments [e.g. bioluminescence assay to detect biological nitrification inhibitors (BNIs) from plantroot systems] led to significant advances in our ability to quantify and characterize BNI function in pasture grasses. Among grass pastures, BNI capacity is strongest in lowN environment grasses such as Brachiaria humidicola and weakest in highN environment grasses such as Italian ryegrass (Lolium perenne) and B. brizantha. The chemical identity of some of the BNIs produced in plant tissues and released from roots has now been established and their mode of inhibitory action determined on nitrifying Nitrosomonas bacteria. Synthesis and release of BNIs is a highly regulated and localized process, triggered by the presence of NH4+ in the rhizosphere, which facilitates release of BNIs close to soilnitrifier sites. Substantial genotypic variation is found for BNI capacity in B. humidicola, which opens the way for its genetic manipulation. Field studies suggest that Brachiaria grasses suppress nitrification and N2O emissions from soil. The potential for exploiting BNI function (from a genetic improvement and a system perspective) to develop production systems, that are lownitrifying, low N2Oemitting, economically efficient and ecologically sustainable, is discusseden_US
dc.publisherInternational Center for Tropical Agriculture (CIAT)en_US
dc.sourceTropical Grasslands-Forrajes Tropicales;1,(2013) Pagination 168,174en_US
dc.subjectnitrous oxide emissionsen_US
dc.subjectbrachiaria grassesen_US
dc.subjectgrassland productivityen_US
dc.subjectnitrogen lossesen_US
dc.subjectnitrogen-use efficiencyen_US
dc.titleNitrogen management in grasslands and forage-based production systems – Role of biological nitrification inhibition (BNI)en_US
dc.typeJournal Articleen_US
cg.creator.idRao, Idupulapati: 0000-0002-8381-9358en_US
cg.creator.idIshitani, Manabu: 0000-0002-6950-4018en_US
cg.creator.idPeters, Michael: 0000-0003-4237-3916en_US
cg.subject.agrovocglobal warmingen_US
cg.contributor.centerJapan International Research Center for Agricultural Sciences - JIRCASen_US
cg.contributor.centerInternational Center for Tropical Agriculture - CIATen_US
cg.contributor.centerInternational Crops Research Institute for the Semi-Arid Tropics - ICRISATen_US
cg.contributor.centerPierre and Marie Curie University, Institut d’écologie et des sciences de l’environnement de Paris - UPMC-IEESen_US
cg.contributor.centerFrench National Research Institute for Agriculture, Food and Environment - INRAE Franceen_US
cg.contributor.crpCGIAR Research Program on Dryland Systems - DSen_US
cg.contributor.funderNot Applicableen_US
cg.coverage.regionSouth Americaen_US
dc.identifier.statusOpen accessen_US

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