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Ricaurte Oyola, José JaumerOtero, MartínMolina, JardenBeebe, Stephen E.Rao, Idupulapati M.[Diferencias fenotípicas en desarrollo de pelos de raíces entre genotipos de fríjol común]Diferencias fenotípicas en desarrollo de pelos de raíces entre genotipos de fríjol común

Juo, A.S.R.[Selected methods for soil and plant analysis: IITA manual series, No. 1]Selected methods for soil and plant analysis: IITA manual series, No. 1

Plants growing in acid soils suffer both phosphorus (P) deficiency and aluminum (Al) toxicity stresses. Selection of genotypes for adaptation to either P deficiency or Al toxicity has sometimes been unsuccessful because these two soil factors often interact. Two experiments were conducted to eval...


Jemo, M.Abaidoo, R.C.Nolte, C.Horst, Walter J.[Aluminum resistance of cowpea as affected by phosphorusdeficiency stress]Aluminum resistance of cowpea as affected by phosphorusdeficiency stress

A field study of cowpea, soybean and maize was made at Ibadan, Nigeria, to determine the uptake of mineral nutrients and quantities removed in crop residues and seed. Concentrations of N, the major cations (K, Ca, Mg and Na) and major anions (P, S and Cl), and the micronutrients (Fe, Mn, Zn and C...


Randall, P.J.Abaidoo, R.C.Hocking, P.J.Sanginga, Nteranya[Mineral nutrient uptake and removal by cowpea, soybean and maize in West Africa, and implications for carbon cycle effects on soil acidification]Mineral nutrient uptake and removal by cowpea, soybean and maize in West Africa, and implications for carbon cycle effects on soil acidification

Phosphorus fertilizer was applied at two rates to four soyabean varieties of different duration to maturity at four sites. The P rate had no significant (p > 0.05) interaction with site or variety. TGx1670-1F, one of the two late varieties, had the highest levels of total P (11 kg/ha) and apparen...


Ogoke, I.J.Togun, A.O.Carsky, R.J.Dashiell, Kenton E.[Phosphorus recovery from triple superphosphate by soyabean in the Guinea savanna of Nigeria]Phosphorus recovery from triple superphosphate by soyabean in the Guinea savanna of Nigeria

The cultivation of soybean is increasing in the savannas of Nigeria due to its widespread use in the food and feed industry. Production is, however, constrained by low soil phosphorus (P) levels in northeast Nigeria. This study evaluated four soybean varieties for their response to three rates of...


Kamara, A.Y.Abaidoo, R.C.Kwari, J.Omoigui, L.O.[Influence of phosphorus application on growth and yield of soybean genotypes in the tropical savannas of northeast Nigeria]Influence of phosphorus application on growth and yield of soybean genotypes in the tropical savannas of northeast Nigeria

Efforts to develop cassava technology for the vast areas of acid infertile soils were continued Large-scale germplasm screening in the field was begun in Carimagua for tolerance to low levels of P and acidity and in Quilichao, for tolerance to low levels of P. Various fertilizer trials were used ...

Se continuaron los esfuerzos para desarrollar tecnologia de yuca adecuada para las vastas extensiones de suelos acidos e infertiles; en Carimagua se inicio la seleccion de germoplasma en gran escala a nivel de campo para buscar tolerancia a bajos niveles de P y a la acidez y en Quilichao toleranc...


International Center for Tropical Agriculture[Suelos y nutrición de plantas]Suelos y nutrición de plantas

Efforts to develop cassava technology for the vast areas of acid infertile soils were continued Large-scale germplasm screening in the field was begun in Carimagua for tolerance to low levels of P and acidity and in Quilichao, for tolerance to low levels of P. Various fertilizer trials were used ...

Se continuaron los esfuerzos para desarrollar tecnologia de yuca adecuada para las vastas extensiones de suelos acidos e infertiles; en Carimagua se inicio la seleccion de germoplasma en gran escala a nivel de campo para buscar tolerancia a bajos niveles de P y a la acidez y en Quilichao toleranc...


International Center for Tropical Agriculture[Soils and plant nutrition]Soils and plant nutrition

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