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 | education |
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| extension |
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| fertilizer economics |
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| field variability |
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| foliar fertilization |
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| fruits |
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| high yields |
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 | irrigation |
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| Eastern Canada & Northeast U.S. |
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| Great Plains U.S. |
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| CO-10F | Potassium Needs of High-yielding Alfalfa on the West Slope of Colorado | |
| KS-32F | Effects of K Fertilization on Turfgrass Growth and Water Relations of Creeping Bentgrass under Deficit Irrigation | |
| KS-33F | Maximizing Irrigated Crop Yields in the Great Plains | |
| NE-11F | Ecological Intensification of Irrigated Corn and Soybean Cropping Systems | |
| TX-40F | Response of Cotton to Phosphorous Applied in Irrigation Water on the Texas High Plains | |
| IPNI |
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| Northern Latin America |
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| Southeast U.S. |
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| Western U.S. |
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