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Nitrogen Credit: The Rest of the Story

We have all been programmed to think of soybean as fixing nitrogen from the atmosphere and adding nitrogen to the soil. The SDSU lab and most other labs give nitrogen “credit” when another crop follows soybeans.

Three young farmers walking through a harvested field at sunset.

SDSU Extension Seeks Participants for Farm and Ranch Stress Assistance Network Focus Groups

January 27, 2022

SDSU Extension invites individuals involved in farming, ranching and agriculture to participate in a statewide comprehensive needs assessment on farm/ranch stress and mental health.

A small pile of harvested non-gmo soybeans on a grey cloth.

Glyphosate Resistance in Soybeans

Many weeds have developed glyphosate resistance in the past few years. Many producers who use Roundup Ready soybeans have a temptation to rely on glyphosate products to control post-emergent weeds, causing them to potentially become resistant to the chemical. If producers are unable to gain control over the weed, then weed competition will cause a significant yield loss.

Rows of soybean growing in corn residue in a diverse, no-till crop rotation.

Economics of Different Crop Rotation Systems in South Dakota

Economic returns are an important factor to consider when selecting crop rotation systems.

A patch of soybeans with several plants exhibiting browning and yellowing leaves.

Plant Disease Management Decisions to Make Before Planting

For most plant diseases, in-season management choices are very limited. In fact, there are no in-season management options available for diseases caused by nematodes, viruses, and bacteria.

Female rancher standing in front of a cowherd.

The Power of Women as AgVocates Rescheduled to March 4 and 5

February 08, 2022

The Power of Women as AgVocates Conference has been rescheduled for March 4-5, 2022 in Fort Pierre, South Dakota at the Casey Tibbs Rodeo Center and the Missouri Avenue Event Center in Pierre.

A soybean root with several small white cysts growing on it.

Scout and Soil Test for the Soybean Cyst Nematode

Soybean cyst nematode (SCN) is the main soybean production constraint in South Dakota. Soybean plants can be infested with SCN but may not display visible symptoms.

A soybean field with a large brown area due to a lightning strike.

Seeing Dead Soybean Plants in a Circular Pattern? Could Be Due to Lightning

While quite uncommon for lightning to damage row crops, it does happen. Thunderstorms can have lightning that can burn soybeans plants leading to their death.

Spring and Winter Camelina in South Dakota

In the semi-arid, western portion of South Dakota, camelina has potential value as a fall-seeded cover crop, providing flexibility in crop rotations for improving soil health.

A field of emerging winter wheat in early spring.

Winter Wheat Planting Date Is Important

A five year study conducted in southwestern South Dakota evaluating seven winter wheat varieties over four planting dates from September 15 to November 1 showed that delayed planting decreases yields. The results determined that planting mid September to the first of October consistently had the highest grain yield over the duration of the experiment.