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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.

A stock pond with noticable blue-green algae bloom throughout.

Blue-Green Algae and Livestock

With warmer temperatures, the conditions are right for blue-green algae blooms. Different species of blue-green algae contain various toxins, which can poison livestock, resulting in rapid death.

Tractor applying residual herbicide to a bare field.

Fall-Applied Residual Herbicides

Many parts of South Dakota can experience dry conditions when residual herbicides are applied, resulting in inadequate weed control. In these areas, residual herbicides can be applied in the fall and take advantage of a longer period to receive activating precipitation.

Green veins are striking compared to the necrotic (brown) tissue on SDS-infected soybean.

Are You at Risk for Sudden Death Syndrome in Soybean?

The present weather conditions of heavy rainfall and cool temperatures provide a favorable environment for sudden death syndrome in soybeans. Learn some expert tips for identifying and managing it this growing season.

Sample USDA NRCS Web Soil Survey output. Orange boundaries mark different soil zones on a satellite photo.

Precision Agriculture and Zone Management

Precision agriculture tools can address the variations in a production system to enhance plant growth and crop yield. Zone management controls the variable rate of inputs for optimal performance within a defined field zone.

A small green corn plant that has been cut and is laying on the ground.

Cut Corn Plants Detected in South Dakota

Cut corn plants have been detected in South Dakota. The damage is due to black cutworm feeding. Although black cutworm caterpillars injure corn by feeding on leaf tissue, the serious damage occurs when caterpillar feeding results in the cutting of young corn plants.