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 | fertilizer economics |
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| Eastern Canada & Northeast U.S. |
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| Northcentral China |
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| Northern Great Plains |
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| Southeast U.S. |
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 | Western U.S. |
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| BC-16F | Fertilizer Strategy and Cranberry: Yield and Nutrient Uptake | |
| CA-31 | Relationship of Soil K fixation and Other Soil Properties to Fertilizer K Rate Requirement | |
| WA-09F | Influence of Tillage and Phosphorus Rate in Placement on Corn and Bean Yields | |
| WA-14 | Root Responses to Fertilizer Placement and Source | |
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| flax |
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| forages |
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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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| maximum economic yield (MEY) |
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