In episode 11 of Corn College TV, join Farm Journal Field Agronomist Ken Ferrie as he provides top tips for managing residue after harvest. Use his pointers in taking care of what’s left behind for the crops ahead.
Be sure you’re ready to follow up right behind the combine as Ferrie lays out the keys to residue decomposition in corn-on \-corn.
“It starts right behind the combine,” Ferrie says. “In corn-on-corn the challenge is getting it decomposed in the fall. We bury the residue to drive decomposition to make it easier in the spring.”
Ferrie says the approach to residue will vary by geographic location.
“In the south, farmers may want to preserve the residue for cover,” he says. “And in the northern areas like Minnesota and Wisconsin they don’t have as much of an opportunity for decomposition in the fall.”
Ferrie says that today’s hybrids are making farmers think more about residue management in corn-on-corn.
“No doubt as hybrids are healthier with stronger stalk structure, farmers are considering the process of shredding stalks with the combine or with a second pass,” Ferrie says. “And to help decompose those shredded stalks, we can recommend putting some, not a lot, of ammonium nitrogen to start the break down as stalks are incorporated.”