Recent rains kept Suzanne and Mike Collins' orange grove alive, but the rainy season is ending. If they don't get federal irrigation water by this summer, their trees will start dying. Kirk Siegler/NPR hide caption

itoggle caption Kirk Siegler/NPR

Chris and Sara Guerre are among a growing number of farmers who have made the choice to rent land to farm instead of buy because of increasing property values. Zac Visco for NPR hide caption

itoggle caption Zac Visco for NPR

Ripening fruit in a grove in Plant City, Fla., this month. Florida citrus growers are worried about citrus greening, which causes bacteria to grow on the leaf and fruit, eventually killing the tree. Chris O'Meara/AP hide caption

itoggle caption Chris O'Meara/AP

Retired farmer Joe Govert looks at a parcel of family land near Tribune, Kan. It has been enrolled in the Conservation Reserve Program. Charlie Riedel/AP hide caption

itoggle caption Charlie Riedel/AP

Rowbot is designed to fit in between the rows of crops. Moving up and down each row, a fleet of 20 bots could fertilize and monitor the corn crops during the growing season. Courtesy of Kent Cavender-Bares hide caption

itoggle caption Courtesy of Kent Cavender-Bares

Ripe Gala apples are ready for picking at an orchard in South Haven, Mich. spablab/Flickr.com hide caption

itoggle caption spablab/Flickr.com

This millet field outside Nunn, Colo., is nearing harvest time, when the grain turns from green to a golden color. Luke Runyon/Harvest Public Media hide caption

itoggle caption Luke Runyon/Harvest Public Media

Agricultural work, which is physically demanding, is also a risky business venture. Kirk Siegler/NPR hide caption

itoggle caption Kirk Siegler/NPR

American farms like this iceberg lettuce field owned by Duda Farm Fresh Foods outside Salinas, Calif., are facing a dwindling supply of farmworkers from rural Mexico. Kirk Siegler hide caption

itoggle caption Kirk Siegler

This 5-foot plexiglass piece of art resembling a freshly poured glass of milk sits near the door at Dairy Farmers of America headquarters in Kansas City, Mo. Peggy Lowe/Harvest Public Media hide caption

itoggle caption Peggy Lowe/Harvest Public Media

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

Jameson Small uses a late-1800s seeder to plant lettuce at Tuttle farm in Dover, N.H. Small is part of a group of young farmers who are taking care of the land as the owners await a buyer. Jim Cole/AP hide caption

itoggle caption Jim Cole/AP

Desmond Brown sells fruits and vegetables at a farmer's market outside the Alabama Capitol in Montgomery, Ala. Dave Martin/AP hide caption

itoggle caption Dave Martin/AP