Search

Secchi disk being used to measure lake transparency.

The Trophic State Index

The Trophic State Index is a means for lake professionals and volunteers alike to numerically measure the productivity of a natural lake or man-made reservoir. Learn how it's used in South Dakota to survey the condition of our water resources.

Storm water rushing down a street gutter.

South Dakota Water and Community Symposium to be Held July 26

July 22, 2022

SDSU Extension will host a one-day South Dakota Water and Community Symposium on Tuesday, July 26 from 9:30 a.m. – 2:30 p.m. CDT at the Raven Precision Agriculture Center on the South Dakota State University campus in Brookings.

Three canning jars filled with cucumber slices.

South Dakota Cottage Home Processing Food Safety

The Cottage Home Processing Food Safety course serves as the approved food safety training for HB1322.

Leaves clogging stormwater drain.

Urban Stormwater Systems and Leaf Litter

Leaf litter can be a significant source of organic debris to urban stormwater systems during fall rain, which can mean nutrient spikes in the receiving bodies of water. Learn some expert tips for managing leaf litter this fall.

Eastern South Dakota Water Conference participants.

Registration Open for the 2022 Eastern South Dakota Water Conference

September 21, 2022

Registration is open for the 2022 Eastern South Dakota Water Conference to be held on Wednesday, Oct. 12, at the McCrory Gardens Education and Visitor Center in Brookings, South Dakota.

Lake water with intense algae bloom throughout.

Liebig’s Law of the Minimum and Phosphorus in South Dakota Surface Waters

Too much phosphorus in water can lead to increased growth of aquatic plants, algae blooms and fish kills. Learn about some recent research investigating the impact of phosphorus runoff on South Dakota's water resources.

A cow at the Cottonwood Field Station with her head in the green colored chamber of the GreenFeeder

Range Roundup: Precision Technology to Measure Cattle Methane Emissions and Intake on Western S.D. Rangelands

In a recent research project, our precision livestock team deployed technology to measure individual cattle methane emissions and feed intake by disappearance. Learn how this data can be used to help improve day-to-day management decisions on the ranch.

Interior of a licensed commercial kitchen.

South Dakota Licensed Kitchen Process

Interested in selling food products in a retail establishments? Licensed kitchens are the place to start. Learn the steps for building a licensed kitchen in South Dakota along with rules, regulations and guidelines for processing foods in existing licensed kitchens.

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.