A greenhouse experiment was conducted to determine the critical deficiency levels of potassium (K) in the subhumid zone soils for predicting response of a mixture of Andropogon gayanus and Stylosanthes hamata cVerano to K application. Twenty coarse textured soils, having loamy sand to sandy loam ...
Tening, A.S.
,
Tarawali, G.
,
Omueti, J.A.I.
,
[Critical potassium deficiency levels for a grass legume pasture grown on soils of the subhumid zone of Nigeria]
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Critical potassium deficiency levels for a grass legume pasture grown on soils of the subhumid zone of Nigeria
The fast depletion of available potassium (K) in soils of the subhumid zone (SHZ) of Nigeria has become a problem for the formulation of fertilizer recommendations, especially in the grass/legume mixtures of the fodder bank system. Five different K fertilizer recommendation models viz. Control, C...
Tening, A.S.
,
Omueti, J.A.I.
,
Tarawali, G.
,
[Potassium requirements of a grass/legume pasture established on selected soils of the subhumid zone of Nigeria]
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Potassium requirements of a grass/legume pasture established on selected soils of the subhumid zone of Nigeria
Although the majority of soils in Africa are P deficient, the high cost of conventional water-soluble P fertilizers limits their use by resource-poor farmers. Rockphosphates are a low-cost alternative. The effect of Egyptian rockphosphate (ERP) from two sources, applied at 50 kg P ha-1, on annual...
Haque, I.
,
Lupwayi, N.Z.
,
[Responses of clover and desmodium to Egyptian rockphosphate in Ethiopia]
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Responses of clover and desmodium to Egyptian rockphosphate in Ethiopia
Field studies were conducted between 1987-1989 at sites on Vertisols at different altitudes in Ethiopia to assess the effects of mixtures of clover undersowings on grain, straw yield and the total biomass production of several wheat varieties. Wheat varieties grown at the medium altitude location...
Tedla, A.
,
Mamo, T.
,
Gebeyehu, G.
,
[Integration of forage legumes into cereal cropping systems in Vertisols of the Ethiopian highlands]
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Integration of forage legumes into cereal cropping systems in Vertisols of the Ethiopian highlands
Cobbina, J.
,
Atta-Krah, A.N.
,
Kang, B.T.
,
[Leguminous browse supplementation effect on the agronomic value of sheep and goat manure]
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Leguminous browse supplementation effect on the agronomic value of sheep and goat manure
Poor drainage of Vertisols and nitrogen (N) and phosphorus (P) deficiencies are some if the major constraints to food and feed production in the Ethiopian highlands. The effects of soil drainage and P supply on N fixation by annual trifolium species and their residual value to succeeding crops wa...
Haque, I.
,
Lupwayi, N.Z.
,
[Landform and phosphorus effects on nitrogen fixed by annual clovers and its contribution to succeeding cereals in the Ethiopian highlands]
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Landform and phosphorus effects on nitrogen fixed by annual clovers and its contribution to succeeding cereals in the Ethiopian highlands
Sesbania, particularly S. sesban species, grow naturally in many parts of Africa where they form natural browse. Productivity of Sesbania as animal feed is widely limited by soil acidity and low In this study, eighteen ILCA accessions of S. sesban and two of S. goetzei, all but two from Africa, w...
Mugwira, L.M.
,
Haque, I.
,
[Screening forage and browse legumes germplasm to nutrient stresses: III. Tolerance of Sesbania to aluminium and low phosphorus in soils and nutrient solution]
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Screening forage and browse legumes germplasm to nutrient stresses: III. Tolerance of Sesbania to aluminium and low phosphorus in soils and nutrient solution
Acacia angustissima has potential as a fodder tree, but was toxic to sheep when fed without adaptation at levels higher than 50 g per day in previous studies. In the present study it was determined that rats are sensitive to anti-nutritional factor(s) of A. angustissima and can therefore be used ...
Smith, A.H.
,
Odenyo, A.A.
,
Osuji, P.O.
,
Wallig, M.A.
,
Kandil, F.E.
,
Seigler, D.S.
,
Mackie, R.I.
,
[Evaluation of toxicity of Acacia angustissima in a rat bioassay]
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Evaluation of toxicity of Acacia angustissima in a rat bioassay
We conducted an experiment to determine the effects of concentration and astringency of extractable and bound condensed tannins (CT) in tropical legumes on intake, digestibility, and nitrogen (N) utilization by sheep. The test legumes (Desmodium ovalifolium and Flemingia macrophylla) had similar ...
Barahona Rosales, Rolando
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Lascano, Carlos E.
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Cochran, R
,
Morrill, J
,
Titgemeyer, EC
,
[Intake, digestion, and nitrogen utilization by sheep fed tropical legumes with contrasting tannin concentration and astringency]
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Intake, digestion, and nitrogen utilization by sheep fed tropical legumes with contrasting tannin concentration and astringency
A trial with sheep (housed in metabolic cages, and fitted with ruminal and duodenal cannulas) fed sun-dried forage of two Calliandra calothyrsus provenances (San Ramon —CIAT 22310 and Patulul CIAT— 22316) harvested in sites with contrasting soil fertility was carried out to further define the bio...
Lascano, Carlos E.
,
Avila Vargas, P
,
Stewart, J
,
[Intake, digestibility and nitrogen utilization by sheep fed with provenances of Calliandra calothyrsus Meissner with different tannin structure]
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Intake, digestibility and nitrogen utilization by sheep fed with provenances of Calliandra calothyrsus Meissner with different tannin structure