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Effects of organic and inorganic fertilizers on corn performance and on some soil properties [microform]
Published 1980Visual Material -
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Yield response curve of sugarcane under varying levels of nitrogen fertilization and water regimes [microform].
Published 1980Visual Material -
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The uptake and translocation of phosphorus by rice (Oryza sativa L.) under soil moisture stress [microform].
Published 1980Visual Material