Soil Health Practices and Decision Drivers on Diversified Vegetable Farms in Minnesota

Natalie Hoidal (), Shane M. Bugeja, Emily Lindenfelser and Paulo H. Pagliari
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Natalie Hoidal: Department of Agricultural and Natural Resource Systems, University of Minnesota Extension, St. Paul, MN 55108, USA
Shane M. Bugeja: Department of Agricultural and Natural Resource Systems, University of Minnesota Extension, St. Paul, MN 55108, USA
Emily Lindenfelser: Department of Agricultural and Natural Resource Systems, University of Minnesota Extension, St. Paul, MN 55108, USA
Paulo H. Pagliari: Department of Soil Water and Climate, Southwest Research and Outreach Center, Lamberton, MN 56152, USA

Sustainability, 2025, vol. 17, issue 3, 1-22

Abstract: Soil health is at the root of agricultural sustainability, and small-scale vegetable farmers are becoming an increasingly important part of the US food system. These farmers face unique challenges when it comes to managing soil on their farms. These challenges include reliance on intensive production practices, the use of primarily organic inputs with difficult to calculate nutrient concentrations, and lack of access to formal education tailored to their needs. We surveyed farmers at 100 small-scale vegetable farms in Minnesota to (1) develop a better baseline understanding of how small-scale vegetable farmers utilize key soil health practices including nutrient management, cover crops, and tillage; (2) explore how farm demographics influence the adoption of soil health practices; and (3) determine educational priorities to better support these growers. Here, we report a lack of understanding about the nutrient contributions of compost, which is often applied at very large volumes without guidance from soil test results, with implications for nutrient loading in the environment. Farmers in our study had high rates of cover crop adoption relative to other farmers in the region despite several barriers to using cover crops. More experienced farmers were more likely to utilize more tillage, with more use of deep tillage implements on larger farms. Overall, organic certification was correlated with higher adoption of soil health practices including utilization of soil tests and cover crop use, but it was not correlated with tillage. Other demographic variables including land access arrangement and race did not meaningfully influence soil health practices. Our findings suggest a need for more research, outreach, and education targeted to vegetable farmers about how to interpret laboratory soil test results, and how to responsibly utilize organic inputs including vegetative compost and composted manure at rates appropriate for crop production in a diversified farm setting. We also report a need to compensate farmers for their labor to incentive cover crop use on small farms, and a need for more research and support for farmers in the 3–50-acre range to utilize reduced tillage methods.

Keywords: compost; cover crops; emerging farmer; tillage; nutrient management; small-scale farming; fruit and vegetable (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2025
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