When you’re running a planter and want to get the most out of your fertilizer investment, proper placement is everything. This fertilizer coulter does the critical job of cutting a clean slot for accurate fertilizer placement—keeping nutrients where your crops can use them best instead of scattered on the surface. A sharp, well-balanced coulter means consistent depth and spacing, which translates to better stands and higher yields.
What You’re Getting
- 16-inch diameter for good soil penetration without excessive drag
- Smooth edge cuts cleanly through crop residue and soil without plugging
- 5mm (3/16-inch) thickness strikes the right balance between durability and ground-following ability
- 5-hole bolt pattern on 3-1/2 inch circle with 2-1/2 inch center hole for secure, balanced mounting
- Quality Ingersoll construction that holds its edge and runs true
Built for Real Farm Work
This coulter fits early 1770NT and 1790 JD planters—the workhorses that plant thousands of acres each season. These planters handle everything from no-till corn and soybeans to cover crop seeding, often in challenging conditions with heavy residue or varying soil types. The fertilizer system on these machines is designed to place nutrients precisely where they’ll do the most good.
Made to Last
Farm coulters take serious abuse cutting through stalks, rocks, and varying soil conditions day after day. This blade is manufactured to handle the constant flexing and impact that comes with field work. The smooth edge stays sharp longer than cheaper alternatives and resists chipping when you hit the occasional rock or root.
Good to Know
This is a direct replacement that bolts right on using your existing hardware. If you’re replacing multiple coulters, it’s worth checking that your planter frame is level and your down pressure is set correctly—uneven wear often points to setup issues. Keep a spare on hand during planting season, especially if you’re covering a lot of acres or working in rocky ground.
