Soil Management

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South Dakota Declares February 21 Soil Health Awareness Day

February 20, 2020

South Dakota Governor Kristi Noem has declared February 21, 2020 Soil Health Awareness Day. Agriculture contributes over 132,000 jobs and 32.5 billion dollars in total output to South Dakota’s economy.

Left: Soil from long-term no-till field, exhibiting good soil aggregation through clumping and smaller pieces of soil. Right: Soil from conventionally managed field that included tillage and crop residue removal. Notice the soil is lighter brown, indicating lower organic matter, and the pieces of soil are in larger chunks with no visible indication of clumping or structure.

Organic Agronomy Starting to Impact

For decades scientists have known that a handful of soil contained more micro-biological organisms than the number of humans on earth. Science is just beginning to discover these organisms and learn about their functions and contribution to their soil ecosystem.

A field with patches of soil exhibiting poor water infiltration.

Farm Practices That Improve Soil Health: Cover Crops and Crop Residues

Planting cover crops and returning crop residues (stover) to the soil both adds nutrients and improves overall soil quality. These practices are common with producers across South Dakota and have been recently studied by researchers to identify how they impact the release of greenhouse gases into the atmosphere.

A patch of switchgrass growing at the edge of a field.

Farm Practices That Improve Soil Health: Planting Switchgrass on Marginal Lands

Switchgrass (Panicum virgatum) is a tall, native, prairie grass that is often seeded on marginal lands in South Dakota. It has gained growing popularity over the past decade not only as a source of biofuel and feed, but also as a method to improve soil properties.

Managing Flooded Alfalfa

As floodwaters rise again in parts of South Dakota, spring planting seems to feel further and further away. One crop that is often overlooked in the hustle and bustle of the approaching planting season is alfalfa.

Three color-coded maps indicating no-till, conservation tillage, and conventional tillage percentages in South Dakota. For a complete description, call SDSU Extension at 605-688-6729.

Soil Conservation Practice Adoption Status at the S.D. County Level: 2012–2017

An increasing number of farmers across the state of South Dakota have adopted different soil conservation practices such as no-till, conservation tillage and cover crops. Over time, these practices play significant roles in improving soil health and increasing soil resilience towards extreme weather conditions.

A healthy, growing soybean field. Farmyard in the background.

Soybean Growers Sought for On-Farm Research Program

We want you! SDSU Extension and the South Dakota Soybean Research and Promotion Council are seeking South Dakota Soybean Growers willing to participate in a farmer-led on-farm research program.