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Three hundred, day-old broiler chicks, with an average initial weight of 41.8±1.79 g, were used in a 15-day study (10 birds per battery cage) to characterize their performance and fluorine status when dicalcium phosphate (DCP) was replaced by Busumbu rock phosphate (BRP) as the source of phospho...


Odongo, N.E.Plazier, J.Straaten, P. vanMcBride, B.[The Effects of Replacing Dicalcium Phosphate with Busumbu Rock Phosphate on Performance and the Mechanical Properties of Bone in Growing Chicks]The Effects of Replacing Dicalcium Phosphate with Busumbu Rock Phosphate on Performance and the Mechanical Properties of Bone in Growing Chicks

Twelve Boran steers with a mean live weight of 215.8 ± 13.9 kg were used in an incomplete Latin Square experiment to compare the apparent phosphorus (P) absorption in cattle when Napier grass (Pennisetum purpureum) was supplemented with Busumbu rock phosphate (BRP), Minjingu rock phosphate (MRP)...


Odongo, N.E.Tanner, J.C.Romney, D.L.Plaizier, J.Straaten, P. vanMcBride, B.[The effects of supplementing Napier grass (Pennisetum purpureum) with rock phosphate and steamed bone meal compared with a commercial mineral mix on phosphorus absorption in cattle]The effects of supplementing Napier grass (Pennisetum purpureum) with rock phosphate and steamed bone meal compared with a commercial mineral mix on phosphorus absorption in cattle

The majority of soils in Africa are P-deficient, but the high cost of conventional, water-soluble P fertilisers limits their use by resource-poor farmers. Rockphosphates are a low-cost alternative. The relative agronomic effectiveness of unacidulated (RP), 25 percent partially acidulated (PARP25)...


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

Concentrations and identity of ions in the soil solution may affect soil phosphorus (P) reactions and P availability. In this study, the magnitude of these reactions was evaluated following the application of Minjingu phosphate rock (MPR) combined with chloride and carbonate salts of Na and Ca wi...


Savini, IsaacKoala, SaidouKihara, Job[Minjingu phosphate rock availability in low-pH highly weathered soil as affected by added salts]Minjingu phosphate rock availability in low-pH highly weathered soil as affected by added salts
León Sarmiento, Luis AlfredoArregocés, Oscar[Alternativas sobre el uso como fertilizantes de fosfatos nativos en América tropical y subtropical: memorias del seminario celebrado en CIAT, Colombia 4-6 de noviembre 1987]Alternativas sobre el uso como fertilizantes de fosfatos nativos en América tropical y subtropical: memorias del seminario celebrado en CIAT, Colombia 4-6 de noviembre 1987
León Sarmiento, Luis AlfredoArregocés, Oscar[El fósforo y la fertilización fosfórica en los suelos arroceros de la América Latina]El fósforo y la fertilización fosfórica en los suelos arroceros de la América Latina
Hammond, LLLeón Sarmiento, L.A.Arregocés, Oscar[Guía de estudio para ser usada como complemento de la unidad audiotutorial sobre el mismo tema][Efectividad agronómica de las rocas fosfóricas]Efectividad agronómica de las rocas fosfóricas
Rodríguez Gamboa, R.F.[Evaluación preliminar sobre la calidad de fertilizante de la roca fosfórica en polvo, minigranulada y parcialmente acidulada, proveniente de Capinota, Bolivia]Evaluación preliminar sobre la calidad de fertilizante de la roca fosfórica en polvo, minigranulada y parcialmente acidulada, proveniente de Capinota, Bolivia

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