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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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| | IPNI-23 | Global Maize Project in India: Dharwad, Karnataka | |
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| | KS-40 | Effect of K, Cl, and N on Corn, Wheat, and Double-crop Sunflower Grown on Southeastern Kansas Claypan Soil | |
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| | KY-10F | Evaluation of Sidedress Nitrogen Sources in Dark Tobacco | |
| | KY-11F | Evaluation of Sidedress Nitrogen Sources in Burley Tobacco | |
| | KY-12F | Evaluation of Nitrogen Source and Rate for Established Bermudagrass | |
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 | Lipetskaya, Voronezhskaya, Belgorodskaya, Rostovskaya oblast |
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| | RUSSIA-01 | Improvement of recommendations on potash fertilizer use and adjustment of currently used soil K test interpretation classes in intensive cropping systems | |
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| | INDIA-003 | Development of soil fertility map as a decision support tool for fertilizer recommendation in citrus | |
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| | BRAZIL-59 | Agronomic Effectiveness of Acidulated Phosphate Fertilizers with Different Water Solubility | |
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| | COLOMBIA-16 | Nutrient Demand of Oil Palm Hybrids in Tropical America | |
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| | IPNI-29 | Global Maize Project in Mexico: Toluca, México | |
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| | MN-27F | Evaluation of Ammonium Sulfate Nitrate as a Nitrogen Source for Potato and Sweet Corn Grown on Sandy Soils | |
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| | BRAZIL-56 | Rates and Residual Effect of Potassium Fertilization in a Brazilian Soil | |
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| | NINGXIA-2010 | Long-term potash application and straw return on yield and soil fertility in intercropped wheat-maize system in Ningxia | |
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