Tag Archives | crop yields

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Evergreen agriculture emerges as Africa’s key to food security

Crop production occurring under a full canopy of trees sounds counter-intuitive, but a unique acacia known as a “fertilizer tree” is allowing African farmers to triple maize yields. Attendees at The Hague Conference on Agriculture, Food Security and Climate Change were told yesterday that evergreen agriculture – the integration of fertilizer trees into crop and […]

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The Food Crisis Wildcard: Ozone




We’ve all heard how biofuel crops and changing weather patterns are affecting food supplies, but a scientist from the University of Massachusetts Amherst (UM) believes that there may be a more insidious threat – ozone. While the ozone layer high in the atmosphere helps protect us from the sun’s radiation, ozone at lower levels is […]




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Crop Yields Set To Plunge




Past research indicated that rising levels of greenhouse gases could benefit crop yields, but that theory now looks to be incorrect. Worrying new research from the University of Illinois (UI) suggests that rising carbon dioxide levels could in fact trigger serious food shortages. The researchers based their findings on open-air field trials involving five major […]




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