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 | extension |
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| fertilizer economics |
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 | Eastern Canada & Northeast U.S. |
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| NJ-20F | Corn Response to Point Placement of Nutrients in a No-till Maximum Yield Environment | |
| ON-19 | Surface Broadcast and Incorporated Lime: Impact on Soil pH, Soil pH Distribution and Soybean Yield Response to Fertilizers | |
| ON-20 | Evaluation of Phosphorus Fertilizer Placement in Site Specific Management of Corn | |
| ON-23 | Integrating Zone Tillage and Fertility Placement in Corn | |
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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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| 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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