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 | Eastern Canada & Northeast U.S. |
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| Great Plains U.S. |
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| IN-26 | Nutrient Cycling in an Ethanol Bio Refinery | |
| MN-14F | Fertilization of Perennial Forages on Dairy Farms - a Three-state Survey | |
| SD-10F | Site-specific Management Guidelines | |
| WI-23F | Effect of Stand Age on Alfalfa Response to N and/or S and Confirmation of Alfalfa S Needs in Wisconsin | |
| Northern Latin America |
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| Oceania |
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| Southeast U.S. |
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| Southwest China |
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| Western U.S. |
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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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| nitrogen |
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