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Lake water with abundant blue-green algae throughout.

What is the “a” in Chlorophyll-a?

Have you ever heard the term "chlorophyll a" used in reference to a lake's blue-green algae content? From type "a" to type "f," learn how different types of chlorophyll impact lakes and aquatic environments.

Cottonwood Creek on the SDSU Cottonwood Field Station.

Western South Dakota Stream Guide now available for landowners, managers

January 24, 2023

A new manual, “Understanding Western South Dakota Prairie Streams” – or the Stream Guide – is now available as a free digital download.

Color-coded temperature outlook map of the United States for February through April 2023. For an in-depth description of this graphic, please call SDSU Extension at 605-688-6729.

La Niña’s Third Year Concludes With Cold Temperatures

A rare, third consecutive year with La Niña conditions is coming to an end, but not without bringing cold temperatures in early February. See what to expect for the rest of winter and early spring with an analysis of the NOAA's latest climate outlook.

a graphic image showing drought in South Dakota

Water Conservation and Efficiency During Times of Drought

As drought conditions continue to expand across the state this year, more thought is given towards South Dakota’s limited water resources. We live in a state where weather conditions and rain patterns seem to comfortably exist at the extremes; we either have way too much or nearly not enough. While this isn’t always the case, it is important to keep in mind that our water resources are finite and all of us should be thinking about doing what we can to protect them.

Dry, winter rangeland with minimal snow cover.

Can You Break the Hydro-illogical Cycle?

Regardless of the time of year, it is critical to start thinking about the next drought before we are in it. Learn some key strategies for breaking the Hydro-Illogical Cycle by leveraging drought motioning resources and creating a plan for your operation.

Cottonwood Creek on the SDSU Cottonwood Field Station.

Ranching and Prairie Streams: Why Riparian Areas Matter

For many producers, riparian pastures are essential to their operations. However, land managers need to balance grazing and utilization needs with riparian health for the long-term benefit of their operation.

A slatted floor with an open area. A hose is running into the open area.

New Technology for an Old Problem

One of the last projects I was involved with as coordinator for the Lower James River Watershed Project was the installation of a deep pit monoslope barn for a feedlot operation near Alexandria, SD. A deep pit confinement barn is a manure storage system that employs slatted flooring with pit manure storage underneath.

A herd of cattle grazing near a pond on an open range.

Nitrates and Livestock Water Quality

Nitrate poisoning is something we think about with forages such as millet, oats, corn, sorghum, sudan, kochia and others that have been fertilized or if there is a drought, but water can also be a contributing factor.

A stock pond with noticable blue-green algae bloom throughout.

Blue-Green Algae and Livestock

With warmer temperatures, the conditions are right for blue-green algae blooms. Different species of blue-green algae contain various toxins, which can poison livestock, resulting in rapid death.

A wheat field at sunset.

Water Use by Plant Stage

Over the growing season, solar radiation, air temperature and plant size are the dominant factors in determining evaporative demand and the rate of water use by wheat. Water use can vary dramatically on a day-to day basis, depending on climate and wheat health.