ILF 2019 Evaluation Report Shows Uptick in Conservation Practice Adoption

March 9, 2020

Ames, Iowa, March 9, 2020 – Iowa Learning Farms (ILF), a conservation-focused education and outreach program for Iowa farmers and landowners based at Iowa State University (ISU) Extension and Outreach, released its 2019 Evaluation Report detailing the impact of multiple education and outreach initiatives throughout the year. Dedicated to building a culture of conservation, ILF conducted 24 field days, 23 formal presentations, 66 community event appearances and three conferences, reaching some 7,800 Iowans.

The evaluation report includes data gathered through on-site comment cards, post-event surveys and an annual survey mailed to all field day participants. The report details the changing demographics of working farmers and landowners in Iowa, increases in conservation practices, and general understanding of different practices among working farmers.

Key statistics from the report include an up year in cover-crop plantings –estimated to eclipse one million acres in Iowa, 23% of field day attendees were under age 35, and 23% were female and 76% of farmers responding to surveys are using between one and five conservation practices (no-till/strip-till, cover crops, extended crop rotation, rotational grazing, prairie strips, pollinator habitat, saturated buffer and bioreactor.)

Another notable insight from the evaluation is the reasons farmers gave for implementing these practices. Fifty-one percent of farmers listed soil erosion and 36% considered soil heath as top reasons for adoption. Many practices that address these areas also reduce nutrient loss. These topics bring farmers and landowners to field days, enabling reinforcement of practice value and introduction of additional approaches that can address their needs and help achieve Iowa’s Nutrient Reduction Strategy (NRS) goals.

“With this report, we are very confident that we are able to portray a fair picture of what field day attendees are doing on their farms as well as what cover crop farmers are doing in general, based on the 62% response rate to our year-end survey and 40% response rate to our post field day surveys,” said Jackie Comito, director of ILF. “We are thrilled with one bright spot in education where we’ve thoroughly socialized the concept of prairie strips in the farming lexicon, moving the percentage of respondents unfamiliar with the term from 84% in 2017 to just 18% in 2019. Many positive trends were seen in 2019, but the data we collected was not all good news.”

Even with an increase in cover-crop acres of 16% over 2018, the growth rate is well below the needed trend to accomplish the Nutrient Reduction Strategy goal of 12 to 14 million acres. The report also reflects that only 10% of the planted acres are from new planters, continuing a five-year trend of declines in new plantings by new farmers.

“It’s encouraging to see the rate of increase in cover crop acres is holding steady, however, the majority of that growth is coming from current cover crop farmers adding more acres,” said Jamie Benning, water quality program manager for Iowa State University Extension. “We need to work harder to attract farmers and landowners that have never used cover crops to field days and other conservation events to help them understand the benefits these practices can deliver to their land and businesses and receive information and support from other farmers in their communities as well as experts from ISU and conservation agencies and organizations.”

This evaluation emphasizes the value of Iowa Learning Farm field days for networking and idea sharing among farmers already using cover crops, no-till, and other conservation practices is very important; conservation farmers are sharing information and influencing about 50% more farmers than attend the field days themselves.

To view or download the ILF 2019 Evaluation Report, please visit

To learn more about Iowa Learning Farms outreach and education programs, please visit us on the web at





About Iowa Learning Farms:

Established in 2004, Iowa Learning Farms (ILF) is building a Culture of Conservation by encouraging adoption of conservation practices. Farmers, researchers and ILF team members are working together to identify and implement the best management practices that improve water quality and soil health while remaining profitable. Partners of Iowa Learning Farms include Iowa State University Extension and Outreach, Iowa Department of Natural Resources (USEPA Section 319), ISU’s Leopold Center for Sustainable Agriculture, Iowa Department of Agriculture and Land Stewardship, Iowa Natural Resources Conservation Service, Conservation Districts of Iowa, Iowa Farm Bureau, Practical Farmers of Iowa and GROWMARK, Inc.



Elizabeth (Juchems) Ripley

Iowa Learning Farms