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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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  | Eastern Canada & Northeast U.S. |
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  | North and West Zone India |
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  | Northcentral U.S. |
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 | IA-12F | Use of K to Manipulate Lycopene Content in Tomato Fruit for Improved Nutritional Quality |  |
| IN-17F | Potassium Source and Rate Effects on Muskmelon Yield and Fruit Quality |  |
 | IN-20F | Optimization of Potassium Rate and Source to Minimize the Tomato Physiological Disorder: Yellow Shoulder |  |
  | Northern Latin America |
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  | Southeast China |
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  | Southwest China |
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 | grid sampling |
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 | iron |
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 | legumes |
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 | manganese |
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