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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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 | NWZ INDIA-07 | Potassium nutrition of temperate fruits |  |
| NWZ INDIA-37 | Balanced nutrient use for sustaining high yield, fruit quality and leaf nutrient status of plum |  |
 | NWZ INDIA-38 | Balanced fertilization for high yield and quality of apple in Himachal Pradesh |  |
| NWZ INDIA-47 | Potassium use in tomato |  |
 | NWZ INDIA-59 | Balanced Fertilization for Quality Fruit (Mango) Production in Uttar Pradesh |  |
  | Northcentral China |
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  | 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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