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 | extension |
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 | fertilizer economics |
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| Eastern Canada & Northeast U.S. |
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| Great Plains U.S. |
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| North and West Zone India |
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| Northcentral China |
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| IA-07F | Iowa Soybean Association Producer Profitability Program | |
| IL-34F | Development and Implementation of Fertilizer BMP Guides for Six Selected Major Cropping Systems | |
| IN-23F | Coordination of Management Practices Enhancing Total Efficiency (COMPETE): Indiana Project on Improving Assessments of Soybean Nutrient Needs | |
| MN-15F | Maximizing the Profitability of Site-specific Nutrient Management in a Corn-soybean Rotation | |
| MN-21F | Establishing Local Studies to Investigate the Economics of Variable Rate Phosphorus and Potassium Fertilization | |
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| Northern Latin America |
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| Southeast U.S. |
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| Southern India & Sri Lanka |
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| Western Canada |
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| fertilizer placement |
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| flax |
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| forages |
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| grid sampling |
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