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 | education |
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| extension |
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| fertilizer economics |
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| field variability |
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| foliar fertilization |
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| fruits |
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| high yields |
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| irrigation |
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| Australia & New Zealand |
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| Eastern Canada & Northeast U.S. |
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| Great Plains U.S. |
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 | North and West Zone India |
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| NWZ INDIA-21 | Yield maximization of rice with integrated nutrient management and its residual effect on succeeding cowpea | |
| NWZ INDIA-36 | Phosphorus deficiency in legumes and oil crops | |
| Northern Latin America |
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| South Zone India |
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| Southeast China |
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| Southwest China |
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