A study was conducted to evaluate maize response to leguminous biomass composted with phosphate rocks (PRs) in a split plot design. Field experiments were conducted at Wang’waray Farmers Training Center (F.T.C) located in Babati District of Manyara region in the Northern zone of Tanzania between ...
Shitindi, M.
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Kpomblekou-A, K.
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McElhenney, W.H.
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Ankumah, R.
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Semoka, J.
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Bekunda, Mateete A.
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Bonsi, C.
,
[Maize response to leguminous biomass composted with phosphate rocks in the northern zone of Tanzania]
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Maize response to leguminous biomass composted with phosphate rocks in the northern zone of Tanzania
An incubation experiment was carried out on plateau and slope fields to investigate the effect of plant age and rock phosphate (RP) on the organic resource (OR) quality and available N and P release of the legume residues, including standing biomass and surface litter. The legumes, Mucuna prurien...
Abarchi, I
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Zhang, ZY
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Vanlauwe, Bernard
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Guo, XP
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Wang, WM
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Ong´Or, BTI
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Timbely, D
,
[Effects of plant age and rock phosphate on quality and nutrient release of legume residue]
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Effects of plant age and rock phosphate on quality and nutrient release of legume residue
Cowpea [Vigna unguiculata (L.) Walp.] plays an important role in the livelihoods of the people of sub-Saharan Africa, but phosphorus (P) deficiency in soils is a serious problem that contributes to low productivity. This study was conducted to verify the efficiency of indigenous rock phosphate (R...
Suzuki, K.
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Fatokun, C.A.
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Boukar, O.
,
[Responses of cowpea genotypes to indigenous rock phosphate application]
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Responses of cowpea genotypes to indigenous rock phosphate application
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.
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Plazier, J.
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Straaten, P. van
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McBride, B.
,
[The Effects of Replacing Dicalcium Phosphate with Busumbu Rock Phosphate on Performance and the Mechanical Properties of Bone in Growing Chicks]
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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.
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Tanner, J.C.
,
Romney, D.L.
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Plaizier, J.
,
Straaten, P. van
,
McBride, 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]
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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.
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Lupwayi, N.Z.
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Ssali, H.
,
[Agronomic effectiveness of unacidulated and partially acidulated Minjingu rockphosphates on Stylosanthes guianensis]
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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, Isaac
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Koala, Saidou
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Kihara, Job
,
[Minjingu phosphate rock availability in low-pH highly weathered soil as affected by added salts]
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Minjingu phosphate rock availability in low-pH highly weathered soil as affected by added salts
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]
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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]
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Responses of clover and desmodium to Egyptian rockphosphate in Ethiopia