| 11. | He also investigates the impact of climate change on crop yields.
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| 12. | Many of these crops yield much higher ethanol amounts per acre.
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| 13. | Only recently Iraq started giving approximate forecasts of its crop yields.
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| 14. | Poor crop yields in the United States used to mean good wheat prices.
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| 15. | The company reiterated that genetically modified foods were safe and improved crop yields.
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| 16. | The only motivation for killing the weed is its effect on crop yields.
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| 17. | Crop yields have also improved due to increased use of fertilisers.
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| 18. | The disease is a serious contributor to loss in crop yield.
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| 19. | However, this results in the lower end of crop yield loss.
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| 20. | Better access to seeds and fertilizers contributed to improving crop yields.
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