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Canavalia brasiliensis (canavalia), a drought tolerant legume, was introduced into the smallholder traditional crop-livestock production system of the Nicaraguan hillsides as green manure to improve soil fertility or as forage during the dry season for improving milk production. Since nitrogen (N...


Douxchamps, SabineHumbert, FLHoek, Rein van derMena Urbina, Martin A.Bernasconi, SSchmidt, ARao, Idupulapati M.Frossard, EmmanuelOberson, Astrid[Nitrogen balances in farmers fields under alternative uses of a cover crop legume: a case study from Nicaragua]Nitrogen balances in farmers fields under alternative uses of a cover crop legume: a case study from Nicaragua

Decline in crop yields is a major problem facing smallholder farmers in Kenya and the entire Sub-Saharan region. This is attributed mainly to the mining of major nutrients due to continuous cropping without addition of adequate external nutrients. In most cases inorganic fertilizers are expensive...


Kimetu, J.M.Mugendi, DNPalm, C.A.Mutuo, PKGachengo, CNBationo, B. André[Nitrogen fertilizer equivalencies of organics of differing quality and optimum combination with organic nitrogen source in Central Kenya]Nitrogen fertilizer equivalencies of organics of differing quality and optimum combination with organic nitrogen source in Central Kenya

Leaves of nine green manure (GM) species were surface applied to a tropical volcanic-ash soil at a rate of 100 kg N ha 1 in order to evaluate their N-fertilizer value in a glasshouse experiment. GM treatments were compared to urea at two rates, 50 kg N ha 1 (FN50) and 100 kg N ha 1 (FN100), and t...


Cobo Borrero, Juan G.Barrios, E.Kass, DCLThomas, Richard J.[Nitrogen mineralization and crop uptake from surface-applied leaves of green manure species on a tropical volcanic-ash soil]Nitrogen mineralization and crop uptake from surface-applied leaves of green manure species on a tropical volcanic-ash soil
Pasuquin, J.M.Saenong, S.Tan, P.S.Witt, ChristianFisher, Myles J.[Evaluating N management strategies for hybrid maize in Southeast Asia]Evaluating N management strategies for hybrid maize in Southeast Asia

Moreta Mejía, DE[Cuantificación de genes de microorganismos amoniaoxidantes del suelo a través de PCR en tiempo-real y su asociación con la actividad de la inhibición biológica de la nitrificación (BNI) en Brachiaria humidicola]Cuantificación de genes de microorganismos amoniaoxidantes del suelo a través de PCR en tiempo-real y su asociación con la actividad de la inhibición biológica de la nitrificación (BNI) en Brachiaria humidicola

Nitrogen (N) fertilizers are a major input cost in rice production, and its excess application leads to major environmental pollution. Development of rice varieties with improved nitrogen use efficiency (NUE) is essential for sustainable agriculture. Here, we report the results of field evaluatio...


Selvaraj, Michael GomezValencia, Milton OrlandoOgawa, SatoshiLu, YingzhiWu, LiyingDowns, ChristopherSkinner, WayneLu, ZhongjinKridl, Jean C.Ishitani, ManabuBoxtel, Jos van[Development and field performance of nitrogen use efficient rice lines for Africa]Development and field performance of nitrogen use efficient rice lines for Africa

Gualdron Acosta, RSánchez, P.A.Ayarza, Miguel Angel[Fertilización de nitrógeno para mantenimiento de praderas de Brachiaria decumbens de tres diferentes edades (SL-02-77)]Fertilización de nitrógeno para mantenimiento de praderas de Brachiaria decumbens de tres diferentes edades (SL-02-77)

International Center for Tropical Agriculture[Efecto de diferentes dosis fuentes y épocas de aplicación de N en yuca : Carimagua 1973]Efecto de diferentes dosis fuentes y épocas de aplicación de N en yuca : Carimagua 1973

Rane, JagadishIshitani, ManabuRao, Idupulapati M.[Response of Crop Plants to Nitrogen Stress Opportunities to Increase Nitrogen Use Efficiency]Response of Crop Plants to Nitrogen Stress Opportunities to Increase Nitrogen Use Efficiency

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