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Environmental fate of macro-elements in upland soils under different land uses in Rizal
Published 2004Thesis -
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Potassium supplying capacity of some coconut soils in the Philippines [microform]
Published 1977Visual Material -
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Some characteristics of eight major soil series from the Visayan islands, Philippines and their potassium status [microform]
Published 1977Visual Material -
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the potassium supplying capacity of several Philippine soils under two moisture regimes [microform]
Published 1976Visual Material -
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An experimental study of the radiometric determination of potassium content of soils and minerals [microform]
Published 1975Visual Material -
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9
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10