Once soil tests reveal nutrient deficiencies in your field, build a prescription to start addressing them, Farm Journal field agronomist Ken Ferrie says in Episode 12 of Corn College TV Season 3.
"We can farm this thing by the foot," Ferrie says. "So we’re going to make a prescription, for instance, for nitrogen that’s going to change throughout the field. It’s going to take into consideration the supply power and the loss risk of that field, and we’re going to try to make a variable-rate nitrogen map to meet that."
(Click here to order the Corn College TV Education Series on DVD.)
Plant-population densities generally will remain consistent on heavy and light soils, with some tweaking depending on genetics, Ferrie says. Populations can also be flexed based on the changes in water-holding capacity of soils within the field.
Click play to watch Episode 12 of Corn College TV Season 3: