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| MD |
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| MT |
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| OH |
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| SD |
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| Sichuan |
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| Tamil Nadu |
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| TX |
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| WA |
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| Xinjiang |
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 | (Not Categorized) |
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| | AUSTRALIA-10 | Nutrient budgets for Australia | |
| | COLOMBIA-09 | Fertilizer responses in tropical soils under no-till | |
| | EZ INDIA-25 | Adaptive research on soil test-based balanced nutrient use for sustainable high crop yields | |
| | INDONESIA-16 | Nutrient cycling in mature oil palms in Indonesia | |
| | INDONESIA-20 | Upland improvement and soil phosphorus recapitalization in five provinces of Indonesia (SEBARFOS) | |
| | MEXICO-01B | Wheat and potato root system characteristics and crop fertilizer requirements | |
| | MEXICO-16 | Alfalfa mineral extraction from vertisol soils in central Mexico | |
| | NWZ INDIA-30 | Balanced nutrients use for sustainable high crop yields | |
| | NWZ INDIA-32 | Balanced nutrient use for sustainable high crop yields | |
