Bigger refuges needed to delay pest resistance to biotech corn

Genetically modified crops that produce insect-killing proteins from the bacterium Bacillus thuringiensis (Bt) have reduced reliance on insecticide sprays since 1996. These proteins are lethal to some devastating crop pests, ...

Price increases caused by US biofuel mandate hurts poor countries

(Phys.org)—Price increases for corn—a direct result of the U.S. biofuels mandate—added $11.6 billion in costs for countries importing the food staple between 2006 and 2011. More than half the increase fell on poorer, ...

Historical increase in corn yield -- it's in the roots

One of the most significant developments in agricultural growth in modern times has been the continuous and substantial increase in corn yield over the past 80 years in the U.S. Corn Belt.

Satellite shows high productivity from US corn belt

Data from satellite sensors show that during the Northern Hemisphere's growing season, the Midwest region of the United States boasts more photosynthetic activity than any other spot on Earth, according to NASA and university ...

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