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| TX-41F | Response of Cotton to Potassium in the Texas Blacklands | |
| TX-45F | Potassium Effect on Grapefruit Carotenoids and Vitamin C | |
| TX-46F | Potassium Requirements for Narrow Row Cotton in the Texas Blacklands | |
| TX-47F | Effect of Potassium Fertilizers on Hybrid Bermudagrass Yields and Stand Decline | |
| TX-49F | Determination of the Effect(s) of Fall Fertilization of Bermudagrass with Potassium | |
| TX-51F | Foliar Applied Potassium to Fall and Spring Grown Muskmelon | |
| TX-52 | Using Supplemental Foliar Potassium Fertilization to Improve the Nutritional Quality and Stress Tolerance of Muskmelon | |
| TX-53 | Evaluation of KMag and KMag + P Compared to Muriate of Potash for Production of Tifton 85 Bermudagrass on Coastal Plain Soils | |
| TX-54 | Assessment of Potassium Fertilizer Management in Irrigated Cotton | |
 | North and West Zone India |
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| Northcentral China |
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| Northeast China |
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| Northeast India & Bangladesh |
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| Northern Great Plains |
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| Northwest China |
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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 | |
| NEW ZEALAND-01 | Soil potassium in north island hill country | |
| NEW ZEALAND-02 | Potassium fertilization for north Canterbury dairy production | |
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| South Zone India |
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| Southeast China |
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