GETTING THROUGH TOUGH TRASH. A bank of coulters on a 12-inch row spacing that matches the furrow opener spacing on this no-till drill does a good job of getting through trash with 90 bushel wheat stubble. The coulters mounted in front of the openers provide more trash clearance and cut through the residue to make a path for the opener. This drill equipped with coulters also does a good job on the steep slopes in the eastern Washington area and helps keep the no-till drill from sliding sideways on steep hillsides.

Drill Modifications Fit Needs

These Washington no-tillers built their own no-till drill to direct seed steep slopes.

To stop erosion on slopes as steep as 50 percent in the Skyrocket Hills near Prescott, Wash., Mike Thomas, Sr. and his son Mike, Jr., haven’t cultivated any ground since 1985.

“If we don’t till or disturb the soil, the erosion stops immediately,” says Mike Sr., who is in semi-retirement on the 1,700-acre Hillcrest Farms.

Home-Built No-Till Drill.


The route the Thomases took to save their land from erosion is no-tilling. When none of the no-till drills on the market worked on their steep hills, they decided to build their own.

They converted a Jeffrey chisel plow into a no-till drill by adding a ground drive, seed boxes, fertilizer tanks and points to deliver the seed and fertilizer.

They built one drill during the winter of 1983 and another no-till drill the next winter. Then they decided they were on the wrong track.

“We could see that the concept was good, but that particular design wouldn’t work because the center section of the chisel was so narrow it would try to tip on steep hillsides,” recalls Mike Sr.

The next year the Thomases had a farm machinery manufacturer build them a frame. That is what they are using now. The frame has an 11-foot center section and two 9-foot wings.

The Thomases built four no-till drills using the newer frames in the late 1980s. They sold two to neighboring direct seeders, rent one out to seed 2,000 to 2,500 acres a year and use the fourth on their own land…

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