Acres devoted to demonstrations and research use different nitrogen scenarios to see how certain varieties respond. This is usually separated by a silver label for the average nitrogen scenario, and a gold label for a luxury nitrogen scenario. Nutrient application requires proper placement where and when they are needed. In the early life cycle of corn, zinc is applied. Later, nitrogen, potassium and sulfur are applied in the V7 to V10 stages. "We're really trying to target nutrient applications when the plant needs it," Peterson says.
Uniform data is important
Some factors must be alleviated to keep data uniform. For example, terraces aren't included. "We try to get as uniform of a field as possible," Peterson says. "In Brown County, it's really hard to find 20 acres that are unterraced." In addition, other changes might require the system to adapt. Most sites in the U.S. use 30-inch rows for corn. "As growers are adapting and having twin rows and 20-inch rows, that's a challenge for our system to meet."
Having uniform data is important, because all of the data is fed back into the R7 tool, which stands for:
*The Right Genetics for
*The Right Soil Type at
*The Right Plant Population in
*The Right Cropping System with
*The Right Traits fed
*The Right Plant Nutrition defended with
*The Right Crop Protection
"In winter when growers are making these decisions, they can go online and look at yield differences," Peterson says. "They can put that to work on their own farm."
After seeing how certain strategies have worked, farmers in the area have adapted certain management practices. "They're looking at how they can give that plant nutrition when it really needs it," he says. "They are implementing those things into their own farm and those are the kinds of things that are really fun to see."