UT Extension News – Fall Cover Crops

September 15, 2023

Smith County Agriculture News – By Katie Martin, Smith County Extension Agent

Whether you grow conventionally or organically and no matter if you grow on thousands of acres or in a small garden plot, cover crops can be a beneficial tool. Cover crops serve as natural protectors of the soil, guarding against erosion and nutrient loss. They can add biomass to help build soil organic matter while suppressing weeds and reducing disease and insect pressure. These crops, which include legumes, grasses, and grains, contribute to a healthier soil structure and can set you up for a more successful growing season in the future.

Selecting the right cover crops depends on your specific goals. Legumes like clover and vetch are excellent choices for fixing nitrogen, a crucial nutrient for plant growth. Grasses such as cereal rye and oats offer effective erosion control and weed suppression. Radishes and turnips are able to penetrate compacted soil and improve its structure. The choice of cover crops should align with your soil’s needs and future crop plans.

Timing is crucial when it comes to cover crop planting. For home gardeners, after harvesting summer crops, mid-September to mid-October is ideal for planting cover crops. This allows them to get established before the colder months.

Planting cover crops is a practical and effective way to improve soil health here in Smith County. Whether you’re a home gardener looking to enhance your soil or a row crop farmer seeking sustainable practices, cover crops offer a solution that’s rooted in science and proven results.

If we can be of assistance when it comes to cover crops or any other agriculture topic, contact the UT Extension office at 615-735-2900, or check out our library of publications at smith.tennessee.edu.