Several new insights revealed from the 2019-2020 National Cover Crop Survey
Despite the crippling rainfall that significantly delayed planting across much of the country in 2019, more than 90% of farmers participating in a national cover crop survey reported that cover crops allowed them to plant earlier or at the same time as non-cover-cropped fields. Among those who had “planted green,” seeding cash crops into growing cover crops, 54% said the practice helped them plant earlier than on other fields.
Those findings were among several new insights from the 2019-2020 National Cover Crop Survey, conducted by the non-profit Conservation Technology Information Center (CTIC), with financial support from the Sustainable Agriculture Research and Education (SARE) program and the American Seed Trade Association (ASTA). These organizations have worked together on several past national cover crop surveys, with the first survey dating back to the 2012 crop year.
The 2019-2020 survey, which included perspectives from 1,172 farmers representing every state, was the first by SARE, CTIC and ASTA to include detailed exploration of planting green—a tactic employed by 52% of the respondents—as well as crop insurance use among cover croppers and the impact of cover crops on the profitability of horticultural operations.
Many U.S. farmers have turned to cover crops as part of their strategy to improve soil health while reducing input costs and maintaining yields, stated Mike Smith, who managed the national survey for CTIC. Survey participants averaged 465 acres in cover crops in 2019, an increase of 38% in four years. The USDA Census of Agriculture found a 50% increase in cover crop acreage over the five-year period between 2012 and 2017.
“Farmers are using cover crops for a variety of reasons and many have tried new approaches to cover cropping,” Smith said. “This year’s survey also indicated that some of the concerns that many growers have had about the effects of cover crops on planting dates in a wet year turned out not to be true—in fact, in many cases, cover crops helped farmers plant earlier in the very wet spring of 2019.”
According to Rob Myers, Regional Director of Extension Programs for North Central SARE, “many farmers are finding that cover crops improve the resiliency of their soil, and the longer they use cover crops, the greater the yield increases and cost savings that are reported by producers.”
Among the 1,172 farmers who provided responses in the 2019-2020 National Cover Crop Survey, 81% were commodity producers (corn, soybeans, wheat, cotton, etc.) and 19% categorized themselves as horticultural producers.
Here are some highlights from the survey. For the full survey report, including past years’ survey reports, visit www.sare.org/
Saving on farming costs
Many farmers reported economic benefits from cover crop beyond just yield improvements. Of farmers growing corn, soybeans, spring wheat, or cotton, the following percent had savings on production costs with fertilizers and/or herbicides:
- Soybeans – 41% saved on herbicide costs and 41% on fertilizer costs
- Corn – 39% saved on herbicide costs and 49% on fertilizer costs
- Spring wheat – 32% saved on herbicide costs and 43% on fertilizer costs
- Cotton – 71% saved on herbicide costs and 53% on fertilizer costs
Planting green refers to planting a cash crop like corn, soybeans or cotton into a still-living cover crop, then terminating it soon after with herbicides, a roller-crimper, or other methods. In this year’s survey, 52% of farmers planted green into cover crops on at least some of their fields. (In the 2016-2017 report, the most recent prior survey by SARE, CTIC and ASTA, 39% of the respondents had planted green.)
- Of the farmers planting green, 71% reported better weed control
- 68% reported better soil moisture management, particularly valuable in a wet spring
Horticulture producers also benefit
For the first time, the survey queried horticulture producers about how cover crops have impacted their profit. Of the 184 horticulture producers responding to that question, 35% reported a moderate increase in net profit (defined as an increase of 5% or more), and another 23% reported a minor increase in net profit (2-4% increase). Even after factoring in the purchase and planting cost of cover crops seed, only 4% observed a minor (2-4%) reduction in net profit, and none reported a moderate loss in net profit.
“The 2019-2020 National Cover Crop Survey shows that an ever-growing number of farmers of all types and in all regions of the U.S. continue to find advantages to using cover crops,” says Myers at SARE. “While the first survey in 2012 showed the benefits of cover crops in a drought year, this year’s survey showed that cover crops helped farmers in wet weather as well, with many of them being able to plant in wet spring weather when conventional neighbors couldn’t. The survey showed farmers are figuring out how to make cover crops work for them economically, while using them as a tool to address challenging issues such as herbicide-resistant weeds.”
For the full survey report, including past years’ survey reports, visit www.sare.org/