Effects of phosphate haplustult duration of contact and rates of Minjingu Phosphate Rock (MPR) on its release of P in a kanhaplic haplustult

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dc.contributor.authorNsenga, J. V
dc.contributor.authorMrema, J. P
dc.date.accessioned2022-07-22T10:50:09Z
dc.date.available2022-07-22T10:50:09Z
dc.date.issued2006
dc.descriptionJournal Articleen_US
dc.description.abstractAn incubation pot experiment was conducted at the Sokoine University of Agriculture, Morogoro, Tanzania to study the effects of times of contact and rates of Minjingu phosphate rock (MPR) applied to a Kanhaplic Haplustult on the release of P from the MPR. The soil was mixed with MPR at rat'es equivalent to 0.0, 25.0, 37.5, 50.0 and 75.0 mg PI kg soil. The incubation periods were 30, 60, 90, and 120 days. The moisture content of the soil in the pots was maintained at about field capacity during the incubation periods using distilled water. Release of P from the MPR increased with increase in MPR rates and incubation periods. The interaction between incubation periods and MPR rates explained about 86.8% of the variation in P release from the MPR. MPR rates accountedfor 76.6% of the release of P, while incubation periods accounted for 10.3% of the dissolution. The soil pH and extractable Ca were found to increase slightly with increase in MPR rates but decreased with increase in incubation periods. The exchangeable acidity and exchangeable Al decreased with increase in MPR rates, and slightly increased with incubation periods.en_US
dc.identifier.urihttp://www.suaire.sua.ac.tz/handle/123456789/4331
dc.language.isoenen_US
dc.subjectMinjingu phosphate rocken_US
dc.subjectKanhaplic Hapluslulten_US
dc.subjectBray-I-Pen_US
dc.subjectP-releaseen_US
dc.subjectExchangeable acidityen_US
dc.subjectExchangeable AIen_US
dc.subjectExchangeable Caen_US
dc.subjectSoil pHen_US
dc.titleEffects of phosphate haplustult duration of contact and rates of Minjingu Phosphate Rock (MPR) on its release of P in a kanhaplic haplustulten_US
dc.typeArticleen_US

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