Chisel Plow Use and Setup

A chisel plow tears and loosens soil without turning it over, so it leaves a good share of residue on the surface. Set up right, it is one of the most useful primary tools on a mixed farm.

Key points

A chisel plow fractures soil without inverting it and keeps residue on the surface.
Level the frame and set depth evenly before the first pass.
Dig a test hole to confirm you are reaching the layer you want to break.
Wait for soil that fractures instead of smearing.
Keep points sharp and plan a secondary pass for a finished seedbed.

What does a chisel plow actually do?

A chisel plow uses rigid or spring-protected shanks with narrow points or twisted shovels. They fracture the soil as they pass, lifting and shattering it rather than inverting it. Water gets in more easily, and much of last year's residue stays on top where it protects against erosion.

It is a primary tool, so expect to follow it with a lighter secondary pass such as a field cultivator or disk before planting on a conventional seedbed.

How should you set up the frame and shanks?

Start with a level frame. Hitch the chisel plow to the tractor on firm, flat ground and adjust the top link or the drawbar so the frame sits level front to back and side to side. If one end digs deeper than the other, you will leave ridges and spend extra fuel.

Check shank spacing, point type and the trip or spring mechanism in the manual. Closer spacing shatters more soil but needs more pull and clogs faster in heavy residue. Wider spacing handles trash better.

Confirm every shank is tight and every point is in good shape.
Check gauge wheels or depth stops and set them evenly.
Look at the rear leveling attachments, if any, before the first pass.
Walk the field first to pick up rocks, wire or large debris.

How deep and how fast should you run it?

Run deep enough to shatter any compacted layer you are targeting and no deeper. Digging a test hole before and after a pass shows you whether you are reaching the problem layer. Going deeper than needed pulls harder and brings up clods.

Speed matters. Too slow and the soil does not shatter well. Too fast and you throw soil, bend parts and risk shank damage. Start with a moderate speed and adjust by watching what the soil does behind the points. Your manuals list recommended working ranges for your equipment.

What soil moisture works best?

Chisel when the soil is dry enough to fracture. If it rolls up like putty in your hand, wait. Working wet soil makes slabs and clods that can last all season, particularly on heavy clay.

On a 30-acre field with mixed soil types, you may find sandy knolls ready days before low, heavy spots. Do not let the calendar overrule the squeeze test.

What are the common mistakes?

The usual problems are uneven depth, dull points, plowing too wet and skipping the secondary pass. Another is running at the same depth every year until a new compacted layer forms right below the points.

Be careful working near fences, ditches and field edges where a trip shank can throw rock. Keep bystanders back, lower the plow before leaving the seat and never work under a raised implement unless it is properly blocked. Follow the operator's manual for transport, including lights and slow-moving vehicle marking, and check your state rules for road travel.

Is a chisel plow worth owning?

If you farm several dozen acres or more of row crop or hay renovation and want residue left on top, it can be a solid fit. For a small garden, a rotary tiller or a rented tool is more sensible.

Ask a neighbor with similar soil what they use, or check with your extension office on tillage options that suit your slope and drainage.

How should you store the chisel plow between seasons?

Clean off soil and residue, touch up bare metal on points and shanks with a coat of oil or paint, and park the plow on level ground or blocking so the frame is not twisted. Store it where children and animals will not climb on it.

Before the next season, replace worn points, inspect springs and check that moving parts are free. A tool put away clean and inspected is ready to go on the first dry day, which is when you want it ready.

When to get help: Ask your dealer service department about hitch category, ballast and pull limits for your tractor. For erosion rules on your ground, contact your NRCS or conservation district office.

Sources and further reading

Organization homepages are linked so you can search them for current guidance on this topic.

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