More than 170 volunteers in the Brattleboro, Vt., area have contributed urine to the Rich Earth Institute field trials. Mike Earley/Courtesy of Rich Earth Institute hide caption

itoggle caption Mike Earley/Courtesy of Rich Earth Institute

The U.S. Geological Survey found that neonicotinoids are leaching into streams and rivers in the Midwest, including the Missouri River, shown here in Leavenworth, Kan. Dean Bergmann/iStockphoto hide caption

itoggle caption Dean Bergmann/iStockphoto

Throwing out a pound of boneless beef effectively wastes 24 times more calories than throwing out a pound of vegetables or grains. Egg and dairy products fall somewhere between the two extremes. Morgan Walker/NPR hide caption

itoggle caption Morgan Walker/NPR

The decline of honeybees has been attributed to a variety of causes, from nasty parasites to the stress of being transported from state to state to feed on various crops in need of pollination. iStockphoto hide caption

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David Ng (right) and Amanda Furrow, Customs and Border Protection agricultural specialists, inspect wheat for insects and alien seeds at a port in Baltimore, Md. Dan Charles/NPR hide caption

itoggle caption Dan Charles/NPR

Over 90 percent of American figs are grown in California. Two growers there are trying to coax the fruit into ripeness nine months of the year and maybe more. anujd89/Flickr hide caption

itoggle caption anujd89/Flickr

Vincent Mourou, co-founder of Vietnam's first artisan chocolate maker Marou, inspects cacao beans at a farmer's garden in Go Cong Tay district. Hoang Dinh Nam/AFP/Getty Images hide caption

itoggle caption Hoang Dinh Nam/AFP/Getty Images

Backers of the new Open Source Seed Initiative will pass out 29 new varieties of 14 different crops, including broccoli, carrots and kale, on Thursday. J. Scott Applewhite/AP hide caption

itoggle caption J. Scott Applewhite/AP

Reece Melton, 18, of Longmont, Colo., is one of 580,000 FFA members across the country. Luke Runyon/Harvest Public Media hide caption

itoggle caption Luke Runyon/Harvest Public Media