Unharvested Green Soybeans A narrow strip of soybean plants lines the edge of Yarnell Farm along Africa Road, where their proximity to the bright streetlights tricked them into continuing to grow, while plants farther from the road died and the beans dried enough for harvest. This occurs because soybeans are “photoperiodic,”

A narrow strip of soybean plants lines the edge of Yarnell Farm along Africa Road, where their proximity to the bright streetlights tricked them into continuing to grow, while plants farther from the road died and the beans dried enough for harvest. This occurs because soybeans are “photoperiodic,” …