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A sprawling sorghum field ready for harvest

Sorghum Weed Control

Early competition, especially from grass, is critical for successfully controlling weeds in sorghum. There are preemergence as well as postemergence herbicides available for this crop. Early treatment provides the best control of broadleaved weeds with crop stage also being a critical factor for some postemergence treatments.

A map of the Big Sioux River Basin.

Big Sioux River Flood Information System Sees Heavy Use During Spring 2019

The Big Sioux River Flood Information System is the result of a combined effort between the SD Department of Environment and Natural Resources, local governments, and private industry, to create a product that can be used to predict the impact of flood events in the Big Sioux River Basin.

two black beetles rolling a ball of dung

An identification guide to common Dung Beetles of South Dakota

A guide of common dung beetles of South Dakota.

A herd of cattle gather around a stock pond on a vast, lush grassland. Courtesy: USDA [CC BY 2.0]

Range Improvements, Grazing Systems and Net Present Value, What is the Right Balance?

As farms and ranches across South Dakota continue to endure increasing costs of production while receiving less cash for grain and livestock marketed; ranch managers must be extra diligent when implementing new range improvements and grazing systems on their ranches.

man holding a small pile of soil in his hands

Recommended Soil Sampling Methods and Instructions

Proper collection of soil samples is extremely important as the accuracy of the soil test depends on the quality of the soil sample provided to the lab.

man holding a small pile of soil in his hands

Transitioning to Soil Health Systems in Eastern South Dakota Intended for beginners: Where do I start?

Fact sheet for beginners on where to start transitioning to soil health systems in eastern South Dakota.

man holding a small pile of soil in his hands

Fertilizer Recommendation Guide

SDSU Extension fertilizer recommendations are based on field research in South Dakota and neighboring states.

A sprayer applying pre-emergent pesticide to a bare field.

Herbicide Rotation Restrictions

This is a quick reference guide to common herbicides and their rotation restrictions for selected crops.

wheat field

2018 Field Plot Summaries for Wheat Disease Management Trials

The wheat disease management field experiments conducted in the 2018 growing season evaluated several experimental and commercially available fungicides for managing foliar, head or root diseases of spring wheat. Foliar and spike/head diseases incidence and severity were assessed. The field experiments were implemented at Volga Research Farm and Northeast Research Farm (NERF) near South Shore, SD. Results of the same experiment may vary between Volga and Northeast due to environmental differences between the two locations.

wheat field

Instinct HL and Nitrogen Management Effect on Winter Wheat Yield

Nitrogen (N) additives to control N losses through volatilization, denitrification, and leaching are widely used in the Midwest. Slowing the conversion of nitrogen fertilizers to nitrate may lessen leaching and denitrification losses if precipitation or soil becomes saturated.