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| | JIANGSU-11 | Researches on Balanced Fertilization Technology of Sweet potato |  |
 |  | NANJING-11 | Transformation, interaction, and bioavailability of nutrients in the fertisphere |  |
| | NANJING-12 | Improvement method and classification system for evaluating soil available K and plant K status for rice and winter wheat K fertilization |  |
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| | JIANGXI-29 | Study on the soil K status and nutrient management of oil-tea field in Jiangxi |  |
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 | Lipetskaya, Voronezhskaya, Belgorodskaya, Rostovskaya oblast |
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 | Mato Grosso |
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 | México |
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 | MT |
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 | NY |
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  | Omsk Oblast & Republic of Bashkortostan |
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 | Queensland |
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 | São Paulo |
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  | Shaanxi, Shandong, Liaoning |
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 | Shanghai |
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 | Uttar Pradesh |
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 | West Bengal |
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