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Crop Management

All Crop Management Content

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.

oats

Oat Variety Trial Results

In 2025, oat variety trials were planted throughout various locations in South Dakota.

A woman with brown hair in a braid wearing a grey T-Shirt with an SDSU Extension logo stands in the middle of a group of people at a construction site

Educational high tunnel videos now available from SDSU Extension

March 16, 2026

South Dakota State University Extension is continuing its efforts to educate specialty crop producers on high tunnel assembly, management and cropping innovations with a new educational video series.

A screenshot of the ag land soil tables tool.

South Dakota Agricultural Land Soil Productivity Tool

The Ag Land Soil Tables Tool allows users to view soil data and download data by county to further understand the soil rating system. It can help appraisers make baseline agricultural land assessments and determine if adjustments from baseline are needed.

Organic crop field

SDSU Extension invites growers to Sioux Falls Organic Conference

February 17, 2026

South Dakota State University Extension and the Southeast Research Farm at SDSU invite farmers to attend the Sioux Falls Organic Conference on March 12.

A sprawling sorghum field ready for harvest

Sorghum Trial Results

In 2025, sorghum trials were conducted in 2 locations in South Dakota.

Green winter wheat field

Crop Hour

SDSU Extension will deliver a series of virtual Crop Hour webinars January 7 to February 27, 2025, every Tuesday, Wednesday and Thursday from 10:00 a.m.-11:00 a.m. CST.

Yellow wheat field with green weeds throughout.

Weed Control Field Test Data

Data books to use as a reference to select appropriate herbicide(s) for row crops

Bright-yellow sunflowers growing in a field.

Sunflower Hybrid Variety Trial Results

In 2025, sunflower trials were planted in two locations in South Dakota.

Cream colored larva that has an accordion shape and a brown head in the stem of a sunflower.

Dectes Stem Borer in South Dakota Sunflowers

Factsheet covering Dectes stem borer in sunflowers.