Doug Bos is Assistant Director of Rock County Soil and Water Conservation District, where he has worked for 27 years. When he talks about cover crops, he is not only talking of programs, he is speaking of personal experience.
By adopting continuous no-till and using residue management, more water is available for crop production and the soil system becomes more resilient to extreme events, including drought.
I never was one to like tillage. It just didn’t make sense. You would go through and make a perfect seedbed to plant into and then, without fail, you couldn’t get back in the field with the planter before it would rain. Then you would have to start all over again.
Using oilseed radish as a cover crop after winter wheat has been steadily increasing in popularity. However, there is a word of caution for choosing radish as a cover crop on highly erodible soils.
A few years ago, David Dukes, a no-tiller who farms highly erodible land in southwestern Iowa, was interested in protecting his land from erosion. His primary goal: avoid water erosion.
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Franck Groeneweg, who no-tills a variety of crops on more than 12,000 acres near Three Forks, Mont., shares how his massive Johnson-Su bioreactor system allows him to apply compost extract in furrow during planting season.
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