Fertility of soils gropped to rice (oryza sativa, l.) in eastern Same District, Kilimanjaro Region, Tanzania

dc.contributor.authorAmur, N.
dc.contributor.authorSemu, E.
dc.date.accessioned2017-03-30T12:32:53Z
dc.date.available2017-03-30T12:32:53Z
dc.date.issued2006
dc.descriptionUNISWA J. of Agric. Vol 14, 2006: 62-69 71en_US
dc.description.abstractDecline in soil fertility has been found to be the main cause of low rice (Oryza sativa L.) yields in many soils cropped to rice in Tanzania. The objective of this study was to evaluate the effects of N, P, K and Zn on shoot dry matter (DM) yields of lowland rice plants grown in some soils of Same district. Three bulk soil samples were collected from Kisiwani (Mbugani), Ndungu and Kihurio (Kimunyu), which were found to be deficient in some macro- and micro-nutrients following laboratory soil analysis, and were used for this pot experiment. The responses of rice variety, super SSD5 to N, P and K, as well as to different levels of Zn, were assessed in a glasshouse experiment where plants were grown for 56 days. The results showed that N, P and K increased rice shoot DM yields in all the soils used, from 0.61, 0.74 and 0.47 in the controls to 3.01, 2.76, and 1.57 g/plant in the highest N:P:K treatments in Ndungu, Mbugani and Kimunyu sites, respectively. It was further revealed that Zn supplementation in addition to NPK also increased rice dry matter yields further, from 3.05, 2.73 and 1.42 in the Zn controls to 4.75, 4.44, and 2.16 g/plant in the 15 kg/ha Zn treatments in Ndungu, Mbugani and Kimunyu sites, respectively. Iron (Fe) was also found to be deficient in Mbugani soils, and Fe supplementation improved plant growth. It is concluded that deficiency of these nutrients was probably a widespread problem in these and other soils cropped to rice in the district.en_US
dc.identifier.urihttps://www.suaire.sua.ac.tz/handle/123456789/1366
dc.language.isoenen_US
dc.publisherSokoine University of Agriculture, Tanzania.en_US
dc.subjectDry matter yieldsen_US
dc.subjectNutrient deficiencyen_US
dc.subjectRiceen_US
dc.subjectSameen_US
dc.subjectTanzaniaen_US
dc.titleFertility of soils gropped to rice (oryza sativa, l.) in eastern Same District, Kilimanjaro Region, Tanzaniaen_US
dc.title.alternativeRice dry matter yield response to nitrogen, phosphorus, potassium, zinc and ironen_US
dc.typeArticleen_US

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