Funded by the Illinois Soybean Association checkoff program.

Stephanie Porter

How Does Drought Affect Soybeans?

We can easily see corn showing signs of drought or heat symptoms, but signs of soybeans under drought stress aren’t as obvious. When soybeans suffer from heat and water stress, their responses vary due to their cellular structures, metabolic processes and physiological development, which all can directly and indirectly cause soybeans to exhibit symptoms based on their response. Early season soybean stress may cause leaves to be smaller or limit vegetative growth, thus more energy and efforts may be given to root development. A more obvious sign may be leaf flipping, which is like corn rolling. Soybeans flip leaves [...]

By |July 30, 2019|

Risks For Soybeans Planted After Soybeans

Growers need to understand risks with continuous soybeans before addressing product placement. Remember the goal is to get an even stand with seedlings that emerge at nearly the same time and develop at the same rate (Figure 1). In the past, most sources say that there can be up to 5 to 15% yield loss attributed to soybeans planted after soybeans if compared to a corn after soybean rotation. However, research done by Emerson Nafziger, at the University of Illinois, and conducted in Western Illinois revealed that yield loss with continuous soybeans was not as high as expected. The [...]

By |June 18, 2019|

5 Reasons to Stop Your Higher Soybean Population

In the past, a higher soybean population was planted because growers used a drill and wanted a faster canopy to intercept light to reduce weed competition. With the greater use of residual herbicides (don’t skip the pre-herbicide), increased populations to aid in weed control aren’t as important anymore. In a recent webinar, Early Season Weed Control for Improved Weed Resistance Management, Dr. Bryan Young with Purdue University shared that the faster closure of canopy for weed control was achieved by reduced row spacing and not by (increased) seed population. With higher seeding rates, soybeans can increase in height and [...]

By |April 15, 2019|

Sulfur Becoming a Necessity

by Stephanie Porter and Stephanie Smith Why is there such interest in sulfur (S) now and why is it important for our yields? Sulfur deposits have changed dramatically over the years due in part to air quality improvement efforts. Owners of coal-fired power plants have invested more in scrubbers, decreasing the amount of acid rain we receive. Acid rain brought atmospheric sulfur to our soil, and now sulfur deficiencies are more common in some areas that used to receive more acid rains. The map below shows the decrease in the amount of sulfur deposited. Areas in and around Indiana [...]

By |March 15, 2019|

Can You Get a Hold of Your Soybean Mold with a Threshold?

Recently, I was asked, “How do I know if I should have sprayed a fungicide on my soybeans or not?” Below is a checklist of how to make these decisions and some photographs of a few foliar diseases. Check the weather and scout often. To know if a fungal disease is present, you’ve got to go to the field and look throughout the canopy. If it is warm, wet and humid, you probably have some disease present. There will be a lower fungicide yield response in a dry year, like 2012. Use a forecasting tool. If you are seeing gray [...]

By |August 6, 2018|

What You Should Know About Your Soybean Row

Article originally posted on the Burrus Buzz. Recently, both agronomists and growers have been circling around the question of soybean row width and during a recent Twitter poll, 37% voted for me to write about soybean row spacing. This soybean management strategy has been pondered for almost 80 years. I could go on forever citing research, but the conclusion is greater yield potential has been achieved with row spacing less than 30 inches. Don’t get me wrong, there are many that have not adopted narrow row soybeans because of economic factors which can outweigh higher yield potential such as: [...]

By |April 16, 2018|

Better Bean Series – Jacksonville, Illinois

On February 1st a large crowd gathered at Hamilton’s in Jacksonville, Illinois, to learn how they could maximize yield and reach the full profitability of soybeans. The event was cosponsored by the Illinois Soybean Association and Burrus® Seed. Here is what they learned: Feed the Bean Soybean fertility is critical for achieving high-yielding soybeans and soybeans should not be left to scavenge from the corn crop. Having adequate pH (6.2 – 6.8) can help maximize nutrient availability. P and K levels should be maintained at proper soil test levels to achieve high-yielding soybeans. Soybean plants meet their nitrogen requirement [...]

By |February 16, 2018|

It’s “Draft Season” for 2018 Planting

Soybean variety selection is the first important decision you make, and seed companies take this very seriously. I don’t know about you, but I have a house full of sports fans, so when we start talking about a soybean line-up I often think of it as a “soybean sports team.” Every team manager (or company) is going to have a different strategy as well as different needs, but in the end the goal of a seed company is to strengthen their soybean line-up with improvements that meet customer standards and yield expectations. Thanks to weed resistance, the reality when [...]

By |November 30, 2017|

Is Soybean Vein Necrosis Virus a Problem?

I am going to date myself but, when working at the University of Illinois Plant Clinic during graduate school, I can remember finding these strange brown/yellow blotches or symptoms near veins on soybean leaves submitted to the Clinic. After further investigation, we knew these symptoms were not caused by bacteria or fungus. Nancy Pataky, former U of I Plant Clinic diagnostician, would collect the leaves and take them to various specialists (virologists and weed scientists) on campus hoping to get more answers. Now that I am in the industry a plant breeder said he had seen symptoms even earlier, [...]

By |September 28, 2017|

Maturity Group Musings: Top 10 Facts You Should Know about Soybean Maturities

Are the maturity groups you’re planting the right ones for your yield goal? Soybean development and maturity is related to day length or, more specifically, duration of darkness. Growers plant a soybean maturity that develops based on the photoperiod when they farm, usually with a range of ±0.5. If their average maturity is a 3.0, for example, they may choose a range from 2.5 to 3.5 so the crop matures at different times. When deciding on the proper maturity consider the following. Maturity of a soybean variety is the length of time from planting to physiological maturity (just prior [...]

By |August 21, 2017|
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