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- Africa1
- Brazil (Latin America; South America)1
- Green Revolution[remove]1
- India (Southern Asia)1
- Nigeria (Africa, Western)1
- Rwanda (Africa, Eastern)1
- Tanzania1
- agricultural development1
- change1
- conflict1
- corn1
- developing nations1
- development1
- development issues1
- environment1
- extension1
- farmers1
- farming methods1
- food1
- genetic engineering1