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A 2026 study reveals only 23% of Iowa farmers use cover crops, despite their environmental benefits.
A 2026 study by Iowa State University finds that only 23% of Iowa farmers currently use cover crops, despite their proven benefits in reducing nitrate pollution and improving soil health.
Research based on data from 2014 to 2018 shows most farmers either use them inconsistently or not at all, with widespread adoption—around 7.5 million acres—needed to significantly improve water quality.
Experts say benefits like nutrient retention and erosion control typically emerge after four to six years of consistent use, but challenges such as potential yield impacts and difficult planting conditions hinder adoption.
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Un estudio de 2026 revela que solo el 23% de los agricultores de Iowa utilizan cultivos de cobertura, a pesar de sus beneficios ambientales.