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Beltrán Giraldo, Jorge Alonso[La investigación a nivel de finca: caso del sistema de relevo maíz-frijol en San Vicente, Colombia, 1982-1987]La investigación a nivel de finca: caso del sistema de relevo maíz-frijol en San Vicente, Colombia, 1982-1987
Pandey, S.Gardner, CO[Recurrent selection for population, variety, and hybrid improvement in tropical maize]Recurrent selection for population, variety, and hybrid improvement in tropical maize
Howard, Thomas P.Hayward, Andrew PTordillos, AnthonyFragoso, Christopher A.Moreno, Maria ATohme, Joseph M.Kausch, Albert PMottinger, John PDellaporta, Stephen L.[Identification of the maize gravitropism gene lazy plant1 by a transposon-tagging genome resequencing strategy]Identification of the maize gravitropism gene lazy plant1 by a transposon-tagging genome resequencing strategy

In the Cerrado region of Brazil conventional soybean monoculture is since the 1980s being replaced by direct seeding mulch-based cropping (DMC) with two crops per year and absence of tillage practices. The objective of this study was to assess the long-term impact of DMC on soil organic matter ac...


Maltas, ACorbeels, MarcScopel, EOliver, RDouzet, Jean-MarieSilva, F.A.M. daWery, J[Long-term effects of continuous direct seeding mulch-based cropping systems on soil nitrogen supply in the Cerrado region of Brazil]Long-term effects of continuous direct seeding mulch-based cropping systems on soil nitrogen supply in the Cerrado region of Brazil

The decline of soil organic matter (SOM) and its associated fertility is one of the most important constraints to enhanced crop productivity in sub-Saharan Africa. Integrated soil fertility management recognizes the potential benefits of the combined use of organic residue and mineral fertilizer ...


Gentile, RVanlauwe, BernardChivenge, P.P.Six, Johan[Trade-offs between the short and long term effects of residue quality on soil C and N dynamics]Trade-offs between the short and long term effects of residue quality on soil C and N dynamics

Soil organic matter (SOM) and phosphorus (P) fractions play a key role in sustaining the productivity of acid-savanna oxisols and are greatly influenced by tillage practices. In 1993, a long-term experiment on sustainable crop rotation and ley farming systems was initiated on a Colombian acid-sav...


Basamba, T.A.Barrios, E.Amézquita Collazos, EdgarRao, Idupulapati M.Singh, B.R.[Tillage effects on maize yield in a Colombian savanna oxisol : Soil organic matter and P fractions]Tillage effects on maize yield in a Colombian savanna oxisol : Soil organic matter and P fractions

Nutritionally enhanced beans (NEB) with more Fe and Zn than conventional beans (CB) and nutritionally enhanced maize (NEM) with more tryptophan and lysine than conventional maize (CM) were developed as part of a crop-biofortification strategy to improve human nutrition. Proxy measures were used t...


Pachón, HelenaOrtiz, D.A.Araújo, CBlair, Matthew W.Restrepo, J.[Iron, zinc, and protein bioavailability proxy measures of meals prepared with nutritionally enhanced beans and maize]Iron, zinc, and protein bioavailability proxy measures of meals prepared with nutritionally enhanced beans and maize

Los cruzamientos dialelos de 12 padres contrastantes en la toma y uso de fósforo se evaluaron en dos niveles de fósforo (4 y 15 ppm) usando un dise o experimental de alpha lattice con tres repeticiones. Se usó el dise o genético propuesto por Hallauer y Miranda. En bajo y alto fósforo se encontra...


Salazar Villareal, FANarro Leon, LAVallejo Cabrera, Franco Alirio[Habilidad combinatoria general y específica de líneas endogámicas de maíz tolerantes a bajo fósforo = General and specific combining ability of efficient corn inbreeds to low phosphorus]Habilidad combinatoria general y específica de líneas endogámicas de maíz tolerantes a bajo fósforo = General and specific combining ability of efficient corn inbreeds to low phosphorus

Different fields within a farm have been observed to have different soil fertility status and this may affect the response of a maize crop to applied N, P, and K fertiliser. A limiting nutrient trial was carried out at six farms each, in three districts of Western Kenya. In each of the farms, the...


Vanlauwe, BernardTittonell, Pablo A.Mukulama, J[Within-farm soil fertility gradients affect response of maize to fertilizer application in Western Kenya]Within-farm soil fertility gradients affect response of maize to fertilizer application in Western Kenya

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