Effect of pH, concentration and time on the extractability of manure phosphorus in aqueous medium
Material type:
TextPublication details: Nigerian Journal of Applied Science 2001Description: 69-75Subject(s): Summary: Five types of manures including those of local chickens, commercial chickens on bedded and unbedded floor, cow dung and duck faeces were studied for their capacity to release phosphorus in an aqueous medium. Experiments were conducted at 40oC. Curves of cumulative amounts pf phosphorus extracted after a 2-hour equilibration time gave an initial fast reaction that slowed down over the extraction numbers investigated. A generally low ease of release of the nutrient was apparent from the study. Bedded floor manures of the commercial birds exhibited the greatest ease while cow dung had the least. Equilibration time, initial Phosphorus concentration and pH ecerted some influence on phosphorus extractability.
| Item type | Current library | Vol info | Status | |
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Journals
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RRII Library Soils and agonomy | Volume 19, Issue | Journals |
Five types of manures including those of local chickens, commercial chickens on bedded and unbedded floor, cow dung and duck faeces were studied for their capacity to release phosphorus in an aqueous medium. Experiments were conducted at 40oC. Curves of cumulative amounts pf phosphorus extracted after a 2-hour equilibration time gave an initial fast reaction that slowed down over the extraction numbers investigated. A generally low ease of release of the nutrient was apparent from the study. Bedded floor manures of the commercial birds exhibited the greatest ease while cow dung had the least. Equilibration time, initial Phosphorus concentration and pH ecerted some influence on phosphorus extractability.
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