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 | recommendations |
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  | Bangladesh |
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|  |
  | North and West Zone India |
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 | NWZ INDIA-21 | Yield maximization of rice with integrated nutrient management and its residual effect on succeeding cowpea |  |
  | Northcentral China |
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  | Northeast India & Bangladesh |
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  | Northwest China |
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  | Southeast Asia |
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  | Southeast U.S. |
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   | Southern India & Sri Lanka |
|  |
  | Southern Latin America |
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|  |
  | Western Canada |
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|  |
 | sandy soils |
| |
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|  |
 | soil acidity and liming |
| |
|
|  |
 | soil testing |
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|  |
 | sorghum |
| |
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|  |
 | starter fertilization |
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|
|  |