What is in this article?:
- R7 Web-Based Tool Combines Satellite Images with Data For Variable Rate Seeding, Application
- Drought complicates trials
- Start with one or two fields
Keith Roberts has collected yield data from his Morral, Ohio, fields for many years, but says he doesn’t want to rely too heavily on that alone for his agronomic decisions. “The R7 Tool results don’t always match up completely with yield data,” he says. “I like that this new system takes other things into consideration. It’s another piece of the puzzle to help maximize yields.”
Start with one or two fields
The tool’s name is derived from WinField’s R7 placement strategy, which matches crop inputs with field conditions. The seven key components include: genetics, soil type, plant population, cropping system, traits, plant nutrition and crop protection.
Fields with the most variability are likely to benefit most from variable-rate planting and using multiple hybrids, says Joel Johanningmeier, Winfield R7 sales specialist. “But even those fields that seem fairly uniform could vary more than you’d expect.”
The R7 Tool helps most in choosing the right genetics for the right soil type, adds Johanningmeier. “Once a grower is confident in those choices, we can look at other management aspects, such as how those hybrids respond to population changes, and then the nutrient needs of those various population levels. But it all starts with making the best hybrid choices.
“Answer Plot data usually includes several years of yield results on new hybrids, and that allows growers to plant some of the newest numbers on their fields with more confidence,” he says.
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