Considering Vertical Tillage? Here are 5 Benefits
The concept of vertical tillage is well-known, but what it actually entails isn’t fully understood in some corners of farm country.
One important thing to note is that vertical tillage is a comprehensive system, says Ken Ferrie, Farm Journal Field Agronomist. It’s not a single tool, nor a single pass in the field.
Ferrie says using a true vertical tillage system involves understanding the soil profile, addressing compaction issues, ensuring that each pass achieves the goal of the system, respecting residue cover and providing a well-prepared seedbed for the planter pass. Simply put, a vertical system means managing the entire soil profile for uniformity.
In return, some of the benefits farmers gain from a well-managed, uniform soil profile include:
1. improved water infiltration and drainage
2. quicker soil warm-up for spring planting
3. more efficient use of nutrients
4. better drought tolerance
5. uniform growth and pollination
Seeing Is Believing
In the following, 1-minute video, Ferrie shows the type of residue coverage that a vertical tillage system can provide in a field. The field shown had one pass with a true vertical harrow last fall. A member of Ferrie’s agronomic team then sterile seedbed planted into the field this spring.
“What you can see is a lot of cover and very little dust out here,” Ferrie says. “As we zoom in closer to the ground, you can see the amount of residue cover that's left behind.
“Even though this had one pass with vertical tillage in the fall to size residue, it's still covered compared to a high-speed disk where we would bury all this residue and leave that soil surface exposed – especially if we hit it a couple times,” he adds. “So again, (you can see) a big difference between a high-speed disk and a vertical pass that’s designed to leave the residue on top."
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