A study conducted to determine the effect of inter-site variation in soil fertility on plant growth as well as nitrogen, phosphorus and potassium nutrition of leucaena and gliricidia.
Cobbina, J.
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Kang, B.T.
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Atta-Krah, A.N.
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[Effect of soil fertility on early growth of leucaena and gliricidia in alley farms]
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Effect of soil fertility on early growth of leucaena and gliricidia in alley farms
Investigates Nitrogen and Phosphorus transfers in a crop - livestock system in the subhumid zone of Nigeria. Estimates N and P removed from cropland during crop residue grazing and returned to the land through manure, and the contribution crop residues make to cattle diet during the dry season.
Powell, J.M.
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Mohamed-Saleem, M.A.
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[Nitrogen and phosphorus transfers in a crop-livestock system in West Africa]
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Nitrogen and phosphorus transfers in a crop-livestock system in West Africa
Field experiments were conducted to study the effects of inoculation and application of P on the productivity of Desmodium intortum on an Ultisol and Sesbania sesban on a Vertisol, Alfisol and Ultisol in the Ethiopian highlands. On the Vetisol, the effect of drainage by using broad-bed-and-furrow...
Haque, I.
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Lupwayi, N.Z.
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Luyindula, N.
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[Inoculation and phosphorus effects on Desmodium intortum and Sesbania sesban in the Ethiopian highlands]
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Inoculation and phosphorus effects on Desmodium intortum and Sesbania sesban in the Ethiopian highlands
Phosphorus deficiency is the major soil fertility problem limiting forage production in many parts of Africa. The objective of this study was to screen African Trifolium species for dry matter production, nutrient use efficiency and nitrogen fixation potential at different rates of applied Twenty...
Mugwira, L.M.
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Haque, I.
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Lupwayi, N.Z.
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Luyindula, N.
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[Evaluation of phosphorus uptake and use efficiency and nitrogen fixation potential by African clovers]
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Evaluation of phosphorus uptake and use efficiency and nitrogen fixation potential by African clovers
Cichy, Karen Ann
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Caldas, GV
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Snapp, Sieglinde S.
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Blair, Matthew W.
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[QTL analysis of seed iron, zinc, and phosphorus levels in an Andean bean population]
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QTL analysis of seed iron, zinc, and phosphorus levels in an Andean bean population
New semiDwarf wheat (Triticum aestivum L.) cultivars and new land management practices for Vertisols are being introduced in Ethiopia. Our objectives were to (i) determine the variation of N and P contents and concentration in the grain and whether these are related to grain yield, (ii) test cult...
Schulthess, Urs C.
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Feil, B.
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Jutzi, S.C.
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[Yield-independent variation in grain nitrogen and phosphorus concentration among Ethiopian wheats]
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Yield-independent variation in grain nitrogen and phosphorus concentration among Ethiopian wheats
Summarizes and discusses the results of an experiment carried out in 1983 with oats and Italian ryegrass on a soil with vertic properties near Debre Berhan area (Ethiopia) to examine the effects of improved drainage and fertilization (N/P).
Haque, I.
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Jutzi, S.C.
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[Effets du drainage ameliore et de l'application d'engrais sur la croissance de l'ivraie multiflore et de l'avoine sur un sol a proprietes vertiques a Debre Berhan, Ethiopie]
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Effets du drainage ameliore et de l'application d'engrais sur la croissance de l'ivraie multiflore et de l'avoine sur un sol a proprietes vertiques a Debre Berhan, Ethiopie
Reports on the effects of a processed commercial phosphorus fertilizer compared with those of a relatively inexpensive rock phosphate on the growth of a native Ethiopian clover.
Haque, I.
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Jutzi, S.C.
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[Efficacite relative de phosphates chimiques et naturels sur la croissance d'un trefle africain]
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Efficacite relative de phosphates chimiques et naturels sur la croissance d'un trefle africain
We conducted field experiments over 2 years on two acid soils of southern Cameroon to test whether efficient uptake and use of phosphorus (P) from less available sources by grain legume genotypes could benefit subsequent rotational maize. We grew two crops each year. For the first crop we grew 4 ...
Jemo, M.
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Abaidoo, R.C.
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Nolte, C
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Tchienkoua, M
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Sanginga, Nteranya
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Horst, Walter J.
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[Phosphorus benefits from grain-legume crops to subsequent maize grown on acid soils of southern Cameroon]
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Phosphorus benefits from grain-legume crops to subsequent maize grown on acid soils of southern Cameroon
Phosphorus (P) uptake by plant roots depends on P intensity (I) and P quantity (Q) in the soil. The relative importance of Q and I on P uptake is unknown for soils with large P sorption capacities because of difficulties in determining trace levels of P in the soil solution. We applied a new isot...
Pypers, Pieter
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Delrue, J
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Diels, J.
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Smolders, E
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Merckx, R.
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[Phosphorus intensity determines short-term P uptake by pigeon pea (Cajanus cajan L.) grown in soils with differing P buffering capacity : Comparison of E- and L-values]
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Phosphorus intensity determines short-term P uptake by pigeon pea (Cajanus cajan L.) grown in soils with differing P buffering capacity : Comparison of E- and L-values