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dc.contributor.authorMng’ong’o, Marco
dc.contributor.authorMunishi, Linus
dc.contributor.authorNdakidemi, Patrick
dc.date.accessioned2022-10-18T07:47:02Z
dc.date.available2022-10-18T07:47:02Z
dc.date.issued2022-10-03
dc.identifier.urihttps://doi.org/10.1016/j.cscee.2022.100259
dc.identifier.urihttps://dspace.nm-aist.ac.tz/handle/20.500.12479/1684
dc.descriptionThis research was published by Elsevier Ltd. in 2022en_US
dc.description.abstractIntensive paddy farming activities involve higher use of irrigation water and agrochemicals to increase crop productivity per unit area. However, a practice may result in environmental challenges due to nutrient loss and agro-chemicals contamination from agricultural fields. The present study characterized the relationship between agricultural soil phosphate (P) status and P levels in water bodies in Usangu agro-ecosystem (UA), the area famous for paddy rice production in Southern Highland Tanzania. The studied soil pH ranged from 6.4 to 7.6, while water pH was 4.9–6.8, which varied among study sites and negatively correlated to each other. This study found a positive correlation between P concentration (P < 0.001, R2 = 0.78) in agricultural soils and water samples in the study area, where P in soil were 1.66–17.56 mg/kg and 0.02–1.65 mg/L in water. This correlation pattern of P in soil and water indicates that increased P content in farming areas under poor management (flooding system of irrigation), as observed in the study area likely to influence increased levels of P in water bodies leading to water eutrophications, but also reducing the land productivity per unit area. The significant P enrichment (>1.65 mg/L) from agricultural fields to water bodies found in different water samples from irrigation schemes potentially leads to eutrophication. To sustainably manage P concentration in water bodies and increase land productivity per unit area, the hotspot for P loss to water bodies in the agro-ecosystem has to be identified and managed, but also flooding irrigation system standard in the study area has to be abandoned to reduce plant nutrient loss and contamination of water bodies.en_US
dc.language.isoenen_US
dc.publisherElsevier Ltd.en_US
dc.subjectWater qualityen_US
dc.subjectP lossen_US
dc.subjectSoil Pen_US
dc.subjectWater Pen_US
dc.subjectNutrient lossen_US
dc.subjectPaddy farmingen_US
dc.titleIncreasing agricultural soil phosphate (P) status influences water P levels in paddy farming areas: Their implication on environmental qualityen_US
dc.typeArticleen_US


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