Content by Anthony Bly

a newly planted soybean field with white fertilizer sprinkled throughout

Application of Nitrogen Fertilizer in Soybeans

SDSU Extension conducted a study during the 2016 growing season at five Eastern South Dakota sites to evaluate the effects of added N fertilizer (as urea) on soybean yields.

Using Plant Growth Regulator in Oats Grown for Grain

With growers’ interest emerging, SDSU Extension and research faculty teamed up and initiated a study in 2016 in Northeast SD to evaluate the effects of plant growth regulator. The study was conducted at the SDSU Northeast Research Farm (NERF) near South Shore, SD.

A large soybean field being harvested. About half the field is harvested.

Soybean Investigations: Research on Your Farm Seeks Farmer Cooperators

SDSU Extension and the South Dakota Soybean Research and Promotion Council are seeking South Dakota Soybean Growers willing to participate in a farmer-led on-farm strip trial research program.

Farming Strategies for the Future

There was a time in agriculture when greater yields always meant greater profitability. Today’s economic environment is characterized by high input costs and depressed commodity prices. Under this scenario when the optimum input/output relationship has been attained, more inputs do not necessarily result in greater returns on investment. Therefore, todays’ agriculture paradigm requires management that addresses production “optimization”. This is the point where a previously known level of inputs maximizes outputs before incurring into greater investments that result into diminishing returns.

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.