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black cow drinking from a nearly empty stock pond.

Feed & Water Testing Laboratories

A partial listing of available feed testing laboratories.

man holding a small pile of soil in his hands

Optimal Design Drainage Rates for Eastern South Dakota

Fact sheet for the optimal design drainage rates for Eastern South Dakota.

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

Ranch Drought Planning

Fact sheet with general drought planning tips from the range and natural resource perspective.

A low-gradient prairie river that is very meandering.

Understanding Western South Dakota Prairie Streams

This document provides information and guidance for landowners and land managers in western South Dakota who are managing small intermittent streams.

Canada thistle growing in a pasture.

Noxious Weeds of South Dakota

Pictorial reference guide of noxious weeds in South Dakota

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.

small water channel next to green grass

Saturated Buffer for South Dakota

Saturated buffer fact sheet for producers, tile drainage contractors, conservation professionals, other ag professionals.

A sprawling green field of field pea plantings

Field Pea Variety Trial Results

In 2023, field pea trials were planted at different locations in South Dakota.

grass with field bindweed, a viny green weed with white flowers

Lawn Weed Control

Cultural weed control practices must be included in weed management programs to optimize control and inhibit re-infestation. A healthy, dense turf cover is the best overall defense against weed invasion. Some common cultural weed control practices include planting the most adapted turfgrass species for your environment (i.e. shade, full sun, or hot, dry conditions), maintaining a mowing height of 2.5–3.5 inches, watering deeply but less frequently, and proper soil maintenance including fertilization and core aerification.

A field divided into two planting areas. The left area has young corn plants emerging from the soil. The right has no visible corn emergence yet.

Grassy Weeds

Grassy weeds are a problem in all field crops. They must be identified at early stages of growth so they can be controlled before crop yields are seriously threatened. Control measures are not the same for all grassy weeds, so accurate seedling identification is important.