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Plants or Crops

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Spring Dandelion Control In Soybeans

Dandelion has become much more of a problem as farming practices have changed. Less tillage and increased use of glyphosate resistant crops along with reduced use of residual herbicides have allowed some perennial weeds such as dandelion to prevail.

a tractor in a field spraying soybeans

Foliar Fertilization for Soybeans

There has been much press and interest for foliar fertilization of soybean - especially for micronutrients based on plant analysis. In general, foliar fertilization has not proven effective unless there is severe deficiency of a particular nutrient.

A bare crop field ready for planting

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 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.

beetle with metallic green head and red wings resting on soybean leaf

Japanese Beetles

Japanese Beetles (Popillia japonica) are pest beetles feed on trees, ornamental plants and food crops.

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.

A soybean stem with several small nymphs and adults on it.

Why the 250 Threshold is Still Appropriate for Soybean Aphids

When gearing up for soybean aphid scouting, it is important to think about the population densities that warrant insecticide management.

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.

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 seed drill planting soybeans. Courtesy: Soybean Checkoff [CC BY 2.0].

Improve Soybean Profitability by Reducing Input Costs

While declining prices and increasing costs considerably reduce profit for soybean production, there are certain input costs that might be reduced to increase profitability.