Climate-smart crop-livestock systems for smallholders in the tropics: integration of new forage hybrids to intensify agriculture and to mitigate climate change through regulation of nitrification in soil

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dc.creatorRao, Idupulapati M.
dc.creatorIshitani, Manabu
dc.creatorMiles, John W.
dc.creatorPeters, Michael
dc.creatorTohme, Joseph M.
dc.creatorArango, Jacobo
dc.creatorMoreta, Danilo E
dc.creatorLópez, Hernán
dc.creatorCastro, Aracely
dc.creatorHoek, Rein van der
dc.creatorMartens, Siriwan D.
dc.creatorHyman, Glenn G.
dc.creatorTapasco, Jeimar
dc.creatorDuitama, Jorge
dc.creatorSuárez Baron, Harold
dc.creatorBorrero, Gonzalo
dc.creatorNúñez, Jonathan
dc.creatorHartmann, Katharina
dc.creatorDomínguez, Moralba
dc.creatorSotelo Cabrera, Mauricio Efren
dc.creatorVergara, Daniel
dc.creatorLavelle, Patrick M.
dc.creatorSubbaraoa, Guntur V.
dc.creatorRincón, Álvaro
dc.creatorPlazas, Camilo
dc.creatorMendoza, Reynaldo
dc.creatorRathjen, Lena
dc.creatorKarwat, Hannes
dc.creatorCadisch, Georg
dc.date2014
dc.date2015-02-19T18:44:33Z
dc.date2015-02-19T18:44:33Z
dc.date.accessioned2026-06-27T14:28:59Z
dc.descriptionIt is widely recognized that less than 50% of applied nitrogen (N) fertilizer is recovered by crops and,based on current fertilizer prices,the economic value of this "wasted" N globally is currently estimated as US$81 billion annually. Worse still, this "wasted" N has major effects on the environment (Subbarao et al.2012). CIAT researchers and their collaborators in Japan reported a major breakthrough in managing N to benefit both agri-culture and the environment (Subbarao et al.2009). Termed "Biological Nitrification Inhibition" (BNI),this natural phenomenon has been the subject of long-term collaborative research that revealed the mechanism by which certain plants (especially the tropical pasture grass Brachiaria humidicola) naturally inhibit the conversion of N in the soil from a stable form to forms subject to leaching loss (NO3) or to the potent greenhouse gas N2O (Subbarao et al. 2012). B.humidicola, which is well adapted to the low-nitrogen soils of South American savannas, has shown high BNI capacity among the tropical grasses tested (Subbarao et al.2007). The major inhibitor in Brachiaria grasses is brachialactone, a cyclic diterpene (Subbarao et al.2009). Reduction of N loss from the soil under a B. humidicola pasture has a direct and beneficial environmental effect. We hypothesize that this conservation of soil N will have an additional positive impact on a subsequent crop (e.g. maize). At present, recovery of fertilizer N and the impact on crop yield is not known. The main purpose of our interinstitutional and multidisciplinary project, targeting small-scale farmers, is to develop the innovative approach of BNI using B. humidicola hybrids to realize sustainable economic and environmental benefits from integrated crop-livestock production systems.
dc.formatapplication/pdf
dc.identifierhttps://hdl.handle.net/10568/56812
dc.identifier.urihttp://hdl.handle.net/123456789/79524
dc.languageen
dc.publisherInternational Center for Tropical Agriculture
dc.rightsOpen Access
dc.sourceRao, Idupulapati Madhusudana; Ishitani, Manabu; Miles, John; Peters, Michael; Tohme, Joseph M.; Arango, Jacobo; Moreta, Danilo E.; Lopez, Hernán; Castro, Aracely; Van der Hoek, Rein; Martens, Siriwan; Hyman, Glenn; Tapasco, Jeimar; Duitama, Jorge; Suárez, Harold; Borrero, Gonzalo; Núñez, Jonathan; Hartmann, Katharina; Domínguez, Moralba; Sotelo, Mauricio; Vergara, Daniel; Lavelle, Patrick; Subbarao, Guntur v.; Rincon, Alvaro; Plazas, Camilo; Mendoza, Reynaldo; Rathjen, Lena; Karwat, Hannes; Cadisch, Georg. 2014. Climate-smart crop-livestock systems for smallholders in the tropics : Integration of new forage hybrids to intensify agriculture and to mitigate climate change through regulation of nitrification in soil. Tropical Grasslands – Forrajes Tropicales 2 : 130-132.
dc.subjectfeed crops
dc.subjectbrachiaria
dc.subjectgenetic markers
dc.subjectnitrification
dc.subjectfertilizers
dc.subjectclimate change
dc.subjectsoil fertility
dc.subjectsmallholders
dc.subjectmarcadores genéticos
dc.subjectnitrificación
dc.subjectfertilizantes
dc.subjectcambio climático
dc.subjectfertilidad del suelo
dc.titleClimate-smart crop-livestock systems for smallholders in the tropics: integration of new forage hybrids to intensify agriculture and to mitigate climate change through regulation of nitrification in soil
dc.typeJournal Article

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