A saving in both seeding and thinning costs can be obtained from precision planting of tomatoes to be harvested for canning. To make precision planting effective, other cultural practices also must be more precise - including a sufficient amount of surface moisture (to minimize crusting) and an absence of weeds

Cooperation and assistance in conducting these experiments were obtained from George Guanine, Senior Lab Mechanic Ian, and Clay Brook, Extension Technician, University of California, Davis; and Jim Hallet of Germains Seed Company.