Planting soybeans into standing wheat can not only result in higher soybean yields but offer a significant financial boost to growers compared to planting a traditional double crop of soybeans, according to research from Ohio State University's College of Food, Agricultural, and Environmental Sciences.
The technique, called modified relay intercropping of soybeans, allows growers to capture 66 percent of the traditional Ohio growing season to produce a second crop through the inter-planting of soybeans into wheat in late May or early June, said Steve Prochaska, an Ohio State University Extension field specialist and member of the university's Agronomic Crops Team.
Based on extensive research at the Ohio Agricultural Research and Development Center (OARDC), modified relay intercropped wheat can yield at least 90 percent of conventional wheat, Prochaska said.
"In 14 years of research trials in north central Ohio on the modified relay intercropping system, yields have averaged 76 bushels per acre for wheat and 28 bushels per acre for soybeans," he said. "Wheat yields in favorable growing seasons have exceeded 90 bushels per acre, while soybeans have yielded well over 45 bushels per acre."
Growers interested in learning more about modified relay intercropping of soybeans can attend a workshop during a field night Sept. 4 offered by agronomists from OSU Extension and the OARDC. OSU Extension and OARDC are the outreach and research arms, respectively, of the college.
The workshop is 6:30-8:30 p.m. at the OSU Unger Farm, 1303 Nevada Road in Bucyrus. The program is free and open to the public, said Jason Hartschuh, an OSU Extension agricultural and natural resources program coordinator.
The event will focus on how the modified relay intercropping of soybeans system works and allow growers to view various trials of intercropped soybeans, Hartschuh said.
"We will also be looking at the potential yield-promoting products on modified relay intercropped soybeans and traditional soybeans," he said. "There will also be an opportunity for growers to look at the corn production trials and the start of a 2014 cover crops trial looking at the effect on corn yield.
"This trial will also be used to look at weed control after wheat before corn with the use of cover crops."
The economic benefits of growing intercropped soybeans stems from the fact that soybeans experience a longer growing season in the intercrop soybeans system because they are planted in early June versus a double crop when soybeans are typically planted in mid-July, Hartschuh said.