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Les legumineuses fourrageres dans les systemes Africains d'agriculture mixte by Nnadi, L.A., Haque, I.

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Le molybdene dans les sols et les plantes et son importance dans la nutrition animale en Afrique subsaharienne by Haque, I.

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La fixation de l'azote par les legumineuses fourrageres en Afrique subsaharienne: Potentialites et contraintes by Haque, I., Jutzi, S.C.

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Contribution en azote de quatre legumineuses a la culture de mais by Haque, I., Jutzi, S.C.

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Reponse d'une luzerne (Medicago sativa) a la fertilisation phosphatee et a l'inoculation avec des champignons mycorhiziens a vesicules et arbuscules dans un Vertisol deficient en P by Mamo, T., Haque, I.

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Efficacite relative de phosphates chimiques et naturels sur la croissance d'un trefle africain by Haque, I., 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 by Haque, I., Jutzi, S.C.

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Agronomic effectiveness of unacidulated and partially acidulated Minjingu rockphosphates on Stylosanthes guianensis by Haque, I., Lupwayi, N.Z., Ssali, H.

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Inoculation and phosphorus effects on Desmodium intortum and Sesbania sesban in the Ethiopian highlands by Haque, I., Lupwayi, N.Z., Luyindula, N.

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Evaluation of phosphorus uptake and use efficiency and nitrogen fixation potential by African clovers by Mugwira, L.M., Haque, I., Lupwayi, N.Z., Luyindula, N.

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Faidherbia albida and its effects on Ethiopian highland Vertisols by Kamara, C.S., Haque, I.

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Landform and phosphorus effects on nitrogen fixed by annual clovers and its contribution to succeeding cereals in the Ethiopian highlands by Haque, I., Lupwayi, N.Z.

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Phosphorus response and mineral composition of Ethiopian highland Trifolium (clover) species by Nnadi, L.A., Haque, I., Mugwira, L.M.

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Agronomic effectiveness of rock phosphate in an andept of Ethiopia by Nnadi, L.A., Haque, I.

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Sulphur investigations in some Ethiopian soils by Mamo, T., Haque, I.

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Potassium status of some Ethiopian soils by Mamo, T., Haque, I.

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Performance of forage legume-maize intercrops on an upland soil of Ethiopian highlands by Nnadi, L.A., Haque, I.

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Agronomic evaluation of unacidulated and partially acidulated Minjingu and Chilembwe phosphate rocks for clover production in Ethiopia by Haque, I., Lupwayi, N.Z., Ssali, H.

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Root nitrogen transformation and mineral composition in selected forage legumes by Nnadi, L.A., Haque, I.

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Agronomic evaluation of unacidulated and partially acidulated Chilembwe rockphosphates for clover seed production by Haque, I., Lupwayi, N.Z., Ssali, H.

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