Volunteer Corn Reduces Yield In Corn And Soybean Crops

Volunteer Corn Reduces Yield In Corn And Soybean Crops Volunteer corn grows in an indiana soybean field. left uncontrolled, the weed can cause up to 40 percent yield reduction in soybean crops and up to 30 percent in corn. (purdue university photo) download image. west lafayette, ind. volunteer corn has proven to be more than just a nuisance, with major yield reductions to both corn and soybean. The corn was allowed to compete for the entire growing season before soybean yields were measured. a density of 5,000 volunteers acre reduced soybean yield approximately 20% — a 12 bu acre yield loss in 60 bu acre soybean. with a density of 5,000 plants acre, there would be a volunteer corn plant every 3.5 feet of row.

Improving Soybean Yield With Spot Weed Treatment Agremo Research has demonstrated that low densities of volunteer corn can substantially reduce soybean yields. 1 university of nebraska research showed a volunteer corn density of 3,500 plants acre to result in a 10% yield reduction, and a 27% yield reduction by doubling the density to 7,000 plants acre. 2 south dakota state university research showed a 20% yield loss resulting from 5,000 volunteer. It can be applied at 5 to 12 fl oz acre in enlist corn for selective control of volunteer corn. assure® ii must include crop oil concentrate (1% v v) or nonionic surfactant (0.25% v v). apply assure® ii to emerged enlist™ field corn that is at the v2 through v6 stage of development. the applicator must always maintain a 36 foot downwind. Corn. unl research found a volunteer corn population of 3500 plants acre resulted in a 2% yield reduction in corn. doubling the density to 7000 plants acre caused a 5% yield reduction. clumps of volunteer corn led to greater yield loss as they were more competitive than individual plants. a density of 7000 clumps of corn acre resulted in a 14%. Controlling volunteer corn early in a soybean crop is the best management practice. volunteer corn impact on yield volunteer corn at a density of 5,000 plants ac or a plant every 3.5 ft of row reduced yield about 20%. 1 clumps of volunteer corn, originating from an entire ear from the previous year plants can reduce yield even more.