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Soybean

All Soybean Content

A soybean field with notisable yellowing and browning on a section of plants.

Replanting Considerations

Every season weather events such as hail or flooding can damage or destroy previously planted crops in all or in portions of fields. In May or even early June, many producers will replant these areas. As the end of June approaches, the window for replanting narrows and producers may want to do a more careful evaluation of whether or not to replant.

Corn, Soybean, Crop Management

several small green leaves

Soybean Pests: Bean Leaf Beetles and Bean Pod Mottle Virus

With the number of bean leaf beetle observations in soybean fields during 2016, the need for monitoring soybean for Bean pod mottle virus (BPMV) development increases. Bean pod mottle virus was first identified in South Dakota in 1998, and is recognized as a very economically important disease in soybean due to the potential for it to cause devastating losses to soybean yields.

Soybean, Crop Management, Crop Treatments

Two side-by-side images of soybeans at different growth stages. Left: Growth stage. Right: Near harvest.

Soybean Physiology: Reproductive Stages

As soybean fields in the region are rapidly heading towards maturity, we will discuss soybean reproductive stages in this article.

Soybean, Crop Management

A group of white, transparent, and orange colored larva on a soybean stem

Gall Midge Larvae in Soybean Stems

Gall midge larvae were observed recently in soybean stems from a field in South Dakota. These insects were found under the epidermis of the stem that was slightly above the soil line.

Soybean, Crop Management

A yellowing soybean plant with brown spots on the leaves.

Soybean Diseases Update

A few soybean fields scouted had between low to moderate levels of brown spot (also known as Septoria leaf spot). Soybean planted into soybean stubble had elevated levels of brown spot.

Soybean, Crop Management, Crop Treatments

A group of grain bins with a green harvester in front.

Soybean Drying and Storage

Why dry crop seeds artificially when they can be naturally dried in the field? Two major reasons are: i) allows harvesting when the crop is ripe and mature, and ii) proper storage that preserves seed quality.

Soybean, Crop Management

A soybean field with green soybeans and patchy yellow areas.

Yellow Soybeans

Yellow soybean areas within fields are being noticed in some areas of the state. There are six factors which could be causing the soybean plant yellowing: nitrogen (N), potassium (K), or sulfur (S) deficiency, iron deficiency chlorosis (IDC), soybean cyst nematode (SCN), or yellow flash from Roundup application.

Soybean, Crop Management, Crop Treatments, Soil 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.

Soybean, Crop Management, Crop Treatments

A sprawling, planted field with young crops emerging

Crop Rotation in Farm Management 

Crop rotation has long been considered an important farm practice. In 2013 producers had to stray from their well thought out crop rotations when the winter wheat crop in South Dakota failed.

Crop Management, Wheat, Corn, Soybean, Sunflower, Field Pea, Cover Crops

A combine harvesting soybeans and emptying them into a nearby tractor trailer

Harvesting For Maximum Soybean Yields

Numerous studies have been conducted over the last 40 years on soybean combine losses which show that yield loss can be as high as 15 percent.

Soybean, Crop Management