A tomato expert recommends planting seedlings in rich soil with lots of organic matter and a steady slow-release fertilizer. iStockphoto.com hide caption

itoggle caption iStockphoto.com

A clampdown on contamination in growing fields has pushed out wildlife and destroyed habitats. Adam Cole/NPR hide caption

itoggle caption Adam Cole/NPR

A dairy farmer drives some of his Holstein cows out to pasture in the Madison County, N.Y. town of Lenox. Jim Commentucci/The Post-Standard /Landov hide caption

itoggle caption Jim Commentucci/The Post-Standard /Landov

A member of the community supported agriculture program at Congregation Shearith Israel picks from boxes of squash and cucumbers in Atlanta. Some purists say CSAs are drifting away from their roots. John Amis/AP hide caption

itoggle caption John Amis/AP

Pigs take a mud bath at the De Jofrahoeve pig farm in Esch, Netherlands. Dutch farmers treat their animals with almost three times the antibiotics that their Danish neighbors use. Robin Utrecht/AFP/Getty Images hide caption

itoggle caption Robin Utrecht/AFP/Getty Images

One of the community gardens divided up into individual plots run by Denver Urb Gardens. Courtesy of Denver Urb Gardens hide caption

itoggle caption Courtesy of Denver Urb Gardens

Scientists say the corn rootworm is growing resistant to Bt corn. Snbetor via Flickr hide caption

itoggle caption Snbetor via Flickr

D. Landreth Seed Co. President Barbara Melera with a bunch of peanuts at her Philadelphia Flower Show booth. Max Matza for NPR hide caption

itoggle caption Max Matza for NPR