Characterization of land use influence on soil phosphate bioavailability in Usangu agro-ecosystem-Tanzania
| dc.contributor.author | Mng’ong’o, Marco | |
| dc.contributor.author | Munishi, Linus K. | |
| dc.contributor.author | Ndakidemi, Patrick A. | |
| dc.date.accessioned | 2025-03-03T08:57:29Z | |
| dc.date.available | 2025-03-03T08:57:29Z | |
| dc.date.issued | 2021 | |
| dc.description | This research article was published by ELSEVIER in 2021 | |
| dc.description.abstract | Phosphorus (P) is an important nutrient required for plant growth. Land use influences concentration and bioavail- ability of P in agricultural soils. About 198 soil samples (0-30 cm soil depth) were collected from three land-use types (maize, paddy, and conserved areas) in Usangu basin located in Southern Highland Tanzania. The con- centration of soil P determined were compared among different land-use types and locations. The total P (TP), complexed (Po), and bioavailable P (B-P) were measured. The concentration of TP and B-P was determined by acid digestion and Mehlich 3 method, respectivelly, The Po concentration in soil extract was obtained by subtract- ing B-P from TP. TP, B-P and Po concentration in collected soils samples were in range of; Total P (63.12-1350.9 mg/kg), Bioavailable P (0.52-49.87 mg/kg), and complexed P (62.60-1301.03 mg/kg). The cropping area had high TP but very low B-P, especially in paddy farming areas indicating cropping and associated activity decrease bioavailable P in agricultural soils. Furthermore, soils from cropping areas had higher Al, Fe, and Mg concentra- tions than conserved areas, which caused a substantial reduction in B-P due to increased P fixation and adsorption. It is important to note that converting natural land to farming land could potentially influence soil P dynamics thus affecting P bioavailability, crop productivity, and environmental safety. | |
| dc.identifier.other | https://doi.org/10.1016/j.envc.2021.100259 | |
| dc.identifier.uri | https://repository.must.ac.tz/handle/123456789/244 | |
| dc.language.iso | en_US | |
| dc.publisher | ELSEVIER | |
| dc.title | Characterization of land use influence on soil phosphate bioavailability in Usangu agro-ecosystem-Tanzania | |
| dc.type | Article |