 |  | | |
 | nutrient deficiency |
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 | nutrient removal |
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 | oats |
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 | oilseeds |
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 | plant analysis |
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 | potassium |
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  | Brazil |
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  | Eastern Canada & Northeast U.S. |
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  | North and West Zone India |
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  | Northcentral U.S. |
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  | Northeast India & Bangladesh |
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  | Northern Latin America |
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  | Oceania |
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 | AUSTRALIA-05 | Management of sustainable potassium reserves in duplex and sandplain soils of Western Australian cropping zones |  |
| AUSTRALIA-07B | Potassium research on cotton in Australia |  |
 | AUSTRALIA-08 | Potassium on grazed pastures in Western Australia |  |
| AUSTRALIA-11 | Deep-placed potassium fertilizer for peanuts grown in oxisols soils |  |
 | AUSTRALIA-12 | The potential for lucerne yield and quality response to potassium fertilizer in southern Queensland |  |