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Most soils in sub-Saharan Africa are P deficient, but the high cost of water-soluble P fertilizers limits the use of P fertilizers by resource-poor farmers. A low-cost alternative is to apply phosphate rocks. We evaluated the effectiveness of unacidulated (PR), 25 percent partially acidulated (PA...


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

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]Responses of clover and desmodium to Egyptian rockphosphate in Ethiopia

The objective of this study was to improve the availability of phosphorus (P) from rock phosphate (RP) through feeding, mixing and composting manure. The experiment was conducted as a 3 × 2 split-plot design. Manure was collected from 12 Boran steers (200 ± 4.5 kg live weight) fed a basal diet of...


Odongo, N.E.Hyoung-Ho, K.Choi, H.C.Straaten, P. vanMcBride, B.W.Romney, D.L.[Improving rock phosphate availability through feeding, mixing and processing with composting manure]Improving rock phosphate availability through feeding, mixing and processing with composting manure
Ndung'u-Magiroi, Keziah WairimuWaswa, Boaz S.Bationo, B. AndréOkalebo, John RobertOthieno, CalebHerrmann, LaetitiaLesueur, Didier[Minjingu phosphate rock applications increase the population of phosphate solubilising microorganisms with a positive impact on crop yields in a Kenyan Ferralsol]Minjingu phosphate rock applications increase the population of phosphate solubilising microorganisms with a positive impact on crop yields in a Kenyan Ferralsol

León Sarmiento, Luis Alfredo[El uso de las rocas fosfóricas en suelos activos del trópico americano]El uso de las rocas fosfóricas en suelos activos del trópico americano

Bationo, B. AndréNandwa, SMKimetu, J.M.Kinyangi, JamesBado, BVLompo, FKimani, S.K.Kihanda, FMKoala, Saidou[Sustainable intensification of crop-livestock system through manure management in eastern and western Africa: lessons learned and emerging research approaches]Sustainable intensification of crop-livestock system through manure management in eastern and western Africa: lessons learned and emerging research approaches
Miiro, RKabuye, FJama, BAMusenero, EZake, JYKNkwiine, CKakinda, MJOnyango, ODelve, Robert J.[Early farmer evaluation of integrated nutrient management technologies in Eastern Uganda]Early farmer evaluation of integrated nutrient management technologies in Eastern Uganda
León Sarmiento, Luis Alfredo[La experiencia del Centro Internacional para el Desarrollo de Fertilizantes en el uso de rocas fosfóricas en América Latina]La experiencia del Centro Internacional para el Desarrollo de Fertilizantes en el uso de rocas fosfóricas en América Latina

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