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1321
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1322
Effects of organic and inorganic fertilizers on corn performance and on some soil properties [microform]
Published 1980Visual Material -
1323
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1324
Yield response curve of sugarcane under varying levels of nitrogen fertilization and water regimes [microform].
Published 1980Visual Material -
1325
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1326
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1327
The uptake and translocation of phosphorus by rice (Oryza sativa L.) under soil moisture stress [microform].
Published 1980Visual Material -
1328
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1329
Family income, education and fertility in Korea, 1974 a threshold hypothesis [microform].
Published 1980Visual Material -
1330