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No-Till Holds Chemicals In Place

Right from the beginning 18 years ago, this no-tiller wanted to control erosion and increase water quality.

Atfer heavy rains drenched their Schuyler, Neb., farm last summer, 12-year-old Rob Clausen and his dad, Chris, discovered a major benefit of no-till farming with their own water quality test.

In August, Rob caught runoff water from a half dozen fields just before it went into the road ditch. Water was collected from a Conservation Reserve Program (CRP) field, two no-till fields and three fields with varying types of conventional tillage.

Solid Results

The evidence was pretty clear, and so was the water in the bottles, at least where the CRP and no-till practices were concerned.

“At first, we weren’t getting any runoff at all from the field that had soybeans no-tilled into corn stalks,” says Chris. “I was getting frustrated, but it sure showed how well the corn stalks held water.”

Runoff water gathered along the edges of the no-till fields was fairly clear, with only a small amount of sediment settled in the bottom of the bottles. The three samples of runoff water collected from conventionally tilled fields held the heaviest amount of sediment, leaving the water cloudy and dark.

“One of the benefits of no-tilling is cleaner water,” says Chris. “Herbicides and insecticides also tend to stay where the soil particles stay, which means out of the water. Another advantage is that when corn stalks are left attached to the soil by their roots, they don’t travel off the field, clogging ditches or culverts.”

Many No-Till Benefits

Chris began no-tilling 18 years ago. Some fields have been…

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