soil health

When you stop on a bridge that crosses the Big Sioux River in Hamlin County, South Dakota, and look south you can see how well Donnie, Barry and Eli Little manage their cows and crops to improve soil and water quality and increase productivity.

Cows graze in one of 24 paddocks that the family manages with a computer program Eli made after graduating from South Dakota State University in 2013. An electric fence along a buffer strip following the river keeps cows out, protecting the source of drinking water for the city of Sioux Falls.

Of the several practices USDA’s Natural Resources Conservation Service recommends to improve soil health and sustainability one of the most important is to keep the soil covered. 

In corn and soybean fields, the starting point is maintaining the post-harvest crop residue on the soil surface. Crop residue is plant material remaining after harvesting, including leaves, stalks, and roots.

Emily Diamond is a wife, mother, and farmer. She and her family own and operate the Diamond Family Farm in LaGrange, Kentucky. Emily’s farm supplies meat for her family and to the surrounding community through Community Supported Agriculture (CSA). Through CSAs, the community commits to buying the farm’s harvest, sharing both the bounty and risk of farming.

As new farmers, the Diamond family had a dream of producing healthy meat for their family on their own farm.

After hard work and saving their earnings, the family purchased land and began farming. “We built it all from scratch,” Emily said, “but looking back, it would have been easier if we would have purchased land with fencing and a barn already in place.”

While most look to the sky for drought relief, an increasing number of farmers are looking to the soil. And for good reason: Healthy soils capture and store much more water – which can come in handy during dry spells.

Through its “Unlock the Secrets in the Soil” campaign, USDA’s Natural Resources Conservation Service is leading the effort to get more farmers and ranchers to adopt soil health management systems for a wide range of on- and off-farm benefits – including drought resiliency.

So what’s the water-banking secret in healthy soil?

Jamie Scott participated in a roundtable on climate change and agriculture with USDA Secretary Vilsack in East Lansing, Michigan on April 23rd, 2015. Mr. Scott is the Chairman of the Kosciusko County Soil and Water Conservation District and currently serves as the Vice-President of the Indiana Association of Soil and Water Conservation Districts.

Alongside my father Jim, I operate JA Scott Farms. Together we grow approximately 2,000 acres of corn, soybeans and wheat in Kosciusko County, Indiana. One-hundred percent of those acres are planted using a no-till conservation cropping system that incorporates cover crops every winter.

We use this approach to take advantage of the soil health benefits of no-till and cover crops. We have higher yields, richer soil, and improved water holding capacity. I am also encouraged that these practices can remove carbon from the atmosphere and store it in the soil. We have found that these benefits outweigh the added expense of labor and cover crop seeds.

I am a soil health geek.

I didn’t seek to become a geek. But the more I learned about our living and life-giving soil, the more I became convinced this miracle under our feet holds the promise of our future.

We are all connected to the soil. Without it, life as we know it would not exist. However, for years it was believed that the best hope for our precious soil was to slow its rate of erosion—to retard its inevitable decline.

More farmers, ranchers and others who rely on the land are taking action to improve the health of their soil. Many farmers are actually building the soil. How? By using soil health management systems that include cover crops, diverse rotations and no-till.

And when they’re building the soil they’re doing something else – they’re also building the land’s production potential over the long-term.

But how do non-operator landowners (people who rent their land to farmers) know if their tenants are doing everything they need to do to make and keep their soil healthy? Barry Fisher, an Indiana farmer and nationally recognized soil health specialist with the USDA’s Natural Resources Conservation Service, recommends that they ask their farming partner these five questions.

Without irrigation, it’s hard to imagine growing a cash crop in an environment that receives less than 12 inches of precipitation annually. Welcome to the world of grain farmers in central and eastern Oregon.

David Brewer is one of those farmers. But rather than looking to the sky for help, he’s looking to the soil — improving its health in an effort to retain and preserve every drop of precipitation that happens to fall on his farm.

Brewer is a fifth-generation farmer who manages the Emerson Dell Farm, which was founded in 1883, and now includes more than 2,000 acres of cropland and 800 acres of pasture — just southeast of The Dalles, Oregon.

Yesterday, we officially launched the International Year of Soils here at USDA.

Most people don’t realize that just beneath their feet lies a diverse, complex, life-giving ecosystem that sustains our entire existence. I’m talking about soil. There are more living organisms in a single teaspoon of healthy soil than there are people on the earth.

Our soils are alive. We talk about soil health – not soil quality -- on purpose. It’s an important distinction. Anything can have a “quality,” but only living things can have health.

Last week at the United Nations in New York, I joined top USDA officials to celebrate World Soil Day and the U.S. launch of the International Year of Soils, or IYS. Last year, the United Nations General Assembly designated Dec. 5 as World Soil Day and declared 2015 as the IYS to “serve as a major platform for raising awareness of the importance of soils for food security and essential ecosystem service.”  Representing the United States were Robert Bonnie, USDA under secretary for Natural Resources and Environment, and David Smith, deputy chief for soil science and resource assessment, with USDA’s Natural Resources Conservation Service (NRCS).

Under Secretary Bonnie was one of 10 distinguished guests making presentations on the floor of the United Nations. He emphasized the serious challenges that are facing agriculture and food security, particularly in light of the fact that in the next 40 years, farmers and ranchers will need to produce as much food as they have in the last 500 years to feed a rapidly growing population. He also said that NRCS’ work in soil conservation, soil health and soil science has been integral to the economic and environmental sustainability of agriculture.