 |  | | |
 | sulfur |
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 | tillage systems |
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|
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 | turf grass |
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|
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  | East Zone India |
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   | Eastern Canada & Northeast U.S. |
|  |
  | North and West Zone India |
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|
|  |
  | Northcentral U.S. |
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   | Northeast India & Bangladesh |
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  | Northern Latin America |
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|
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  | South Zone India |
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|
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  | Southeast U.S. |
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   | Southern India & Sri Lanka |
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  | Southwest China |
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  | Western U.S. |
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  | water stress and efficiency |
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 | wheat |
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|
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 | zero tillage |
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|
|  |
 | (Not Categorized) |
| |