 |  | | |
| WA-09F | Influence of Tillage and Phosphorus Rate in Placement on Corn and Bean Yields |  |
 | WA-14 | Root Responses to Fertilizer Placement and Source |  |
 | field variability |
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   | Eastern Canada & Northeast U.S. |
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  | Northcentral China |
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  | Northeast India & Bangladesh |
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  | Southeast Asia |
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   | Southern India & Sri Lanka |
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  | Southwest China |
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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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 | magnesium |
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 | manure management |
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  | maximum economic yield (MEY) |
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 | micronutrients |
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 | nutrient deficiency |
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 | nutrient removal |
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