Chemical analysis and missing element trials with Sorghum vulgare L. showed that three Panamanian soils, representative of three great soil groups, were deficient in both nitrogen (N) and phosphorus (P). When a greenhouse trial was undertaken to test the response of Cajanus cajan to rhizobial ino...
Hernández, B.C.
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Méndez-Lay, J.M.
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Focht, D.D.
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[Nitrogen and phosphorus requirements for the growth and nodulation of Cajanus cajan in Panamanian soils]
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Nitrogen and phosphorus requirements for the growth and nodulation of Cajanus cajan in Panamanian soils
BACKGROUND Plants depend on their root systems to acquire the water and nutrients necessary for their survival in nature, and for their yield and nutritional quality in agriculture. Root systems are complex and a variety of root phenes have been identified as contributors to adaptation to soils w...
Rao, Idupulapati M.
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Miles, John W.
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Beebe, Stephen E.
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Horst, Walter J.
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[Root adaptations to soils with low fertility and aluminium toxicity]
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Root adaptations to soils with low fertility and aluminium toxicity
Díaz, Lucy Milena
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Ricaurte Oyola, José Jaumer
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Cajiao V., César Hernando
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Galeano, Carlos H.
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Rao, Idupulapati M.
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Beebe, Stephen E.
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Raatz, Bodo
,
[Phenotypic evaluation and QTL analysis of yield and symbiotic nitrogen fixation in a common bean population grown with two levels of phosphorus supply]
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Phenotypic evaluation and QTL analysis of yield and symbiotic nitrogen fixation in a common bean population grown with two levels of phosphorus supply
Crop yield requires leaf area to intercept solar radiation and to undertake photosynthesis, both of which depend on nitrogen (N) accumulation. Further, the amount of accumulated plant N at the beginning of seed fill serves as the reservoir for N required in synthesizing the proteins in developing...
Clavijo Michelangeli, José A.
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Ricaurte Oyola, José Jaumer
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Sinclair, Thomas R.
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Rao, Idupulapati M.
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Beebe, Stephen E.
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[Influence of plant density and growth habit of common bean on leaf area development and N accumulation]
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Influence of plant density and growth habit of common bean on leaf area development and N accumulation
Symbiotic nitrogen fixation (SNF) contributes to improve grain yield under nitrogen (N) deficiency. Climbing beans are known to be superior to bush beans in their potential for SNF. The main objectives of this study were to: (i) quantify genotypic differences in SNF ability of climbing beans usin...
Barbosa Torres, Norma Constanza
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Portilla, Elizabeth
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Buendía Castellanos, Hector F.
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Raatz, Bodo
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Beebe, Stephen E.
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Rao, Idupulapati M.
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[Genotypic differences in symbiotic nitrogen fixation ability and seed yield of climbing bean]
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Genotypic differences in symbiotic nitrogen fixation ability and seed yield of climbing bean
In African agriculture, availability of nutrients for crop production can be increased using external inputs such as mineral fertiliser. However, for many African farmers the large scale use of external inputs will remain beyond reach for the foreseeable future. There is, therefore, also a need f...
Brouwer, J.
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Powell, J.M.
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[Increasing nutrient use efficiency in West-African agriculture: The impact of micro-topography on nutrient leaching from cattle and sheep manure]
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Increasing nutrient use efficiency in West-African agriculture: The impact of micro-topography on nutrient leaching from cattle and sheep manure
Evaluates the effects of additional cottonseed cake, a nitrogen source which is moderately degraded in the rumen, on the nutritive value of ammoniated and untreated wheat straw; and assesses also the performance of growing wether sheep fed on the treatment diets.
Wanyoike, M.M.
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Meshesha, A.H.
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Said, A.N.
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Karau, P.K.
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[Influence of nitrogen supplementation on voluntary intake and liveweight performance of wether sheep on wheat straw diets]
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Influence of nitrogen supplementation on voluntary intake and liveweight performance of wether sheep on wheat straw diets
Investigates the influence of age and sex on the serum concentrations of total protein(TP), immunoglobulin(LG), blood urea nitrogen(BUN), aspartate aminotransferase(AST), and alanine amino-transferase(ALT) in apparently healthy sheep raised on the Ethiopian highlands; the results shows that males...
Otesile, E.B.
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Kasali, O.B.
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[Effects of age and sex on serum proteins, urea nitrogen and transaminase concentrations in Ethiopian highland sheep]
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Effects of age and sex on serum proteins, urea nitrogen and transaminase concentrations in Ethiopian highland sheep
Ridder, N.A. de
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Benjamin, R.W.
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Keulen, H. van
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[Forage selection and performance of sheep grazing dry annual range]
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Forage selection and performance of sheep grazing dry annual range
A study conducted to develop a classification for Ethiopian clovers based on the performance and phosphorus requirement which has potential for selecting accessions from the rest of the ILCA germplasm suitable for different levels of soil The effects of different P levels on the growth and N and ...
Mugwira, L.M.
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Haque, I.
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[Variability in the growth and mineral nutrition of African clovers]
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Variability in the growth and mineral nutrition of African clovers