How have soybeans changed over the past century, and what can growers learn from this evolution? Purdue University agronomy professor Shaun Casteel has some answers. Speaking at the recent Ontario Certified Crop Advisor annual conference, Casteel shared insights from his research comparing varieties from 1923 to those available in 2011. In this episode of Real… Read More
Preliminary results from a three-year research project in North Dakota show row spacings in many soybean fields are too wide to reach their maximum yield potential. A team of agronomists and extension agents at North Dakota State University are surveying growers to generate baseline data on soybean management practices in the state. Their goal is to… Read More
The amazing rise of soybean acres across Manitoba and into Saskatchewan is possible only because of the development of early, early soybean lines. Just how early? While zeros and double zero maturity ratings are great for “short” season areas in Ontario and Quebec, it’s the triple zero lines that shine in places like Arborg, Manitoba,… Read More
It’ll be a few weeks before we actually know how this year’s soybeans are going to yield, but we can get a pretty good idea now, especially if we’re willing to put some time into building a good sample size for making an estimate. Dieter Schwarz, the new market development manager for corn and soybeans… Read More
When soybean aphids start multiplying in soybean fields, the decision to spray is typically triggered by the number of aphids found on each plant. The threshold for growers in Western Canada is usually reached when there are an average of 250 aphids per plant on 80 percent of the plants. The population should still be… Read More
Fifteen years ago, University of Guelph’s Dr. Clarence Swanton helped revolutionize weed control with his pioneering research on the critical weed-free period for soybeans and corn. Essentially, Swanton helped usher in the thinking that weeds that emerge with or shortly after the crop cause irreversible yield loss. He defined the critical weed-free period as 1st… Read More
The first secret of soybean success really isn’t much of a secret, confesses agronomist Ross Bender. It all comes down to the weather, specifically rain in August. But farmers do have an opportunity to impact the remaining production factors that make up the six secrets of soybean success, says Bender, senior agronomist for the Mosaic… Read More
Too wet isn’t good, but neither is too dry for growers looking to get the most value for soybeans. According to researchers at North Dakota State University, on a 40 bushel-per-acre crop, harvesting soybeans at 9 percent moisture rather than 13 percent will cost the farmer around 1.8 bushels per acre. At $10 per bushel, that’s… Read More
Soybeans are serious consumers of phosphorus, so it seems logical that supplying P fertilizer would be important for maximizing soybean yields, right? That’s wrong, at least in the short-term, according to research results in southern Manitoba. Researchers from the University of Manitoba and Manitoba Agriculture are comparing how soybeans respond to three rates of P2O5 fertilizer (20,… Read More
Preliminary research conducted in southern Manitoba is casting some doubt on the common belief that dark, tilled soil is best for planting soybeans in northern growing regions. Greg Bartley, a graduate student working together with Dr. Yvonne Lawley at the University of Manitoba, is in his second year of comparing how soybeans respond when planted into different… Read More
Poor emergence or damping off of young soybean plants can be a sign of a seedling disease or root rot problem, especially following cool, wet weather as experienced in much of the soybean growing part of Western Canada this spring. As Holly Derksen, plant pathologist with Manitoba Agriculture, explains in this Soybean School West episode, there are… Read More
Soybean planting time brings with it a number of decisions — what’s the optimal seeding rate? Which inoculants should be used, and should they be doubled up? What about seed treatment? Is a seed treatment with insecticide needed? As part of this Soybean School West episode, Kristen Podolsky of the Manitoba Pulse and Soybean Growers… Read More
Soil conditions in the heart of the soybean growing area on the eastern prairies have been dry this spring, leading to questions about planting deeper than normal to ensure the seed has access to moisture. This Soybean School West episode takes us to the middle of a windy field near Portage, Man., where Dieter Schwarz of Pride… Read More
While soybean breeders have focused on boosting top-end yield, they’ve also made the crop more resilient in situations with thin plant stands. Speaking at the CropConnect Conference in Winnipeg last month, Shaun Conley of the University of Wisconsin discussed the “phenotypic plasticity” of soybeans, or the crop’s ability to compensate for lower plant populations. “It’s… Read More
You’re looking at yield data from last year trying to figure out which soybean varieties to grow in 2015 — how do you know when the yield difference between two varieties is meaningful? “That’s a question we get all the time when it comes to picking varieties and looking at single-year site data,” says Dennis… Read More