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dc.contributor.advisorBurger, R. du T.
dc.contributor.advisorLaker, M. C.
dc.contributor.authorBotha, Trevor
dc.date.accessioned2018-05-31T09:29:26Z
dc.date.available2018-05-31T09:29:26Z
dc.date.issued1971-01
dc.identifier.urihttp://hdl.handle.net/11660/8361
dc.description.abstractMainly two types of soil viz. the red sandy soils (Hutton form) and the yellow sandy soils (Clovelly form) were recommended by Van Rooyen (1965, 1967) for irrigational purposes under the Orange River Development Project. Fifteen soil profiles, comprising these two soil forms, were analysed for calcium, magnesium, potassium, sodium, phosphorus, sulphur, copper, zinc and manganese. A pot experiment, including a representative sample from each soil form and different levels of potassium and phosphorus, was conducted to test the reactions of these soils to phosphorus and potassium applications. Phosphate potential studies were conducted on selected samples from each soil form. These soils were found to be deficient in phosphorus, potassium, copper and zinc. A difference in the reaction of these soils to applied phosphorus and potassium was indicated. An extremely interesting relationship between the resin-P-content and phosphate potentials of these. soils was found.en_ZA
dc.language.isoenen_ZA
dc.publisherUniversity of the Free Stateen_ZA
dc.subjectSoils -- South Africaen_ZA
dc.subjectSoils -- Orange Riveren_ZA
dc.subjectSoils and nutrition -- South Africaen_ZA
dc.subjectSoils and nutrition -- Orange Riveren_ZA
dc.subjectDissertation (M.Sc.Agric. (Soil Science))--University of the Free State, 1971en_ZA
dc.titleThe nutrient status of two soil forms of the Orange River development projecten_ZA
dc.typeDissertationen_ZA
dc.rights.holderUniversity of the Free Stateen_ZA


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