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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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| Southeast Asia |
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| Southeast U.S. |
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| Southern and Eastern Russia |
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| Southern India & Sri Lanka |
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| ARGENTINA-13 | Phosphorus and Sulfur Management in Central Santa Fe | |
| ARGENTINA-15 | Balanced fertilization in peanut cropping systems of south-central Cordoba | |
| ARGENTINA-16 | Phosphorus and Potassium Fertilization of Soybeans in the Rice Production Area of Northeastern Argentina | |
| ARGENTINA-18 | Exploration of the Wheat Response to Potash in the Pampas | |
| ARGENTINA-28 | Evaluation of enhanced efficiency fertilizers for wheat and corn | |
| BOLIVIA-1 | Network of fertilization experiments in the eastern plains of Bolivia | |
| CHILE-01 | Site-specific nutrient management in southern Chile | |
| PARAGUAY-01 | Fertilization network at Eastern Paraguay
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| Southwest China |
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| Western India |
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| nutrient removal |
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| oats |
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| oilseeds |
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