Effects of land use practices on soil organic carbon, nitrogen and phosphorus in river Nzoia drainage basin, Kenya

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dc.contributor.author Moses, Wabusya
dc.contributor.author Nyongesa, Humphrey
dc.contributor.author Konje, Martha
dc.contributor.author Agevi, Humphrey
dc.contributor.author Tsingalia, Harrison Mugatsia
dc.date.accessioned 2018-11-14T07:41:45Z
dc.date.available 2018-11-14T07:41:45Z
dc.date.issued 2015-06-18
dc.identifier.issn 2328-563X (Print)
dc.identifier.issn 2328-5648 (Online)
dc.identifier.uri http://ir.jooust.ac.ke:8080/xmlui/handle/123456789/2698
dc.description.abstract Land use activities along River Nzoia Drainage Basin, Kenya, include cultivation along the river banks, over grazing, deforestation, draining of wetlands for horticulture, harvesting of sand and brick-making. These activities have brought about changes in soil properties in the drainage basin adversely affecting farming output and the ecosystem in general. Consequently, it is important to understand how the different land use activities influence the soil properties in order to design and implement effective soil management strategies. This study examined the effects of land use practices on selected soil nutrients in Nzoia River Drainage Basin in Bungoma County. Cultivation and grazing were identified as important land use practices, while undisturbed sites were treated as controls. Land use practices along the river were identified by actual surveying of the study area. Secondary data on land use practices were obtained from technical reports, from local authorities and government offices. Soil samples were collected from different land use areas using randomly placed 5mx5m quadrats. Solis were collected at depths of 15cm in zigzag grid layout in each sample quadrat using soil auger. A total of 72 soil samples were collected in the study sites and analyzed for total nitrogen (N), available phosphorus (P) and organic carbon (C). Analysis of variance and correlation were performed to determine the significant land use practices affecting soil N, C and P. Cultivation had a significant effect on soil organic C mean value of 1.91 but negatively correlated with total Nitrogen and soil C while undisturbed sites exhibited positive correlation with C (P≤ 0.05). On the basis of our findings, it is recommended that conservation agriculture be practiced in the River Nzoia and its drainage system. en_US
dc.language.iso en en_US
dc.publisher Science Publishing Group en_US
dc.subject Cultivation en_US
dc.subject Grazing en_US
dc.subject Organic Carbon en_US
dc.subject Nitrogen en_US
dc.subject Phosphorus en_US
dc.subject Conservation Agriculture en_US
dc.title Effects of land use practices on soil organic carbon, nitrogen and phosphorus in river Nzoia drainage basin, Kenya en_US
dc.type Article en_US

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