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Oikeh, S O and Somado, E A and Sahrawat, K L and Toure, A and Diatta, S (2008) Rice yields enhanced through integrated management of cover crops and phosphate rock in phosphorus-deficient ultisols in West Africa. Communications in Soil Science and Plant Analysis, 39. pp. 2894-2919.
Oikeh, S O and Somado, E A and Sahrawat, K L and Toure, A and Diatta, S (2008) Rice yields enhanced through integrated management of cover crops and phosphate rock in phosphorus-deficient ultisols in West Africa. Communications in Soil Science and Plant Analysis, 39. pp. 2894-2919.