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 | recommendations |
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 | sandy soils |
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 | soil acidity and liming |
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 | soil testing |
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 | sorghum |
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 | starter fertilization |
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 | sugarcane |
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 | technology transfer |
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 | tree crops |
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  | Eastern Canada & Northeast U.S. |
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  | Northcentral U.S. |
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| AL-20F | Ammonia Volatilization from Various N Fertilizer Materials Following Application to a Bermudagrass Sod |  |
 | NC-17F | Ammonium sulfate and micronutrient formulations in greenhouse comparisons |  |
 | vegetables |
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  | water stress and efficiency |
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 | wheat |
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 | zero tillage |
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