Southeast Minnesota soybean harvest underway

Farmers have grain to sell

Lisa Behnken is a crops specialist with the University of Minnesota Extension office in Rochester.

It’s official. Soybean harvest is underway as farmers are bringing in the first soybeans of the season. While the growing season was difficult, early soybean harvest results are described as “pretty good, all things considered.”

Lisa Behnken is a University of Minnesota Extension Educator in the Rochester office. She said things really got going around the middle of last week and continued through the weekend before rain settled in. Some of the early reports are saying yields are coming in right around 55 bushels-per-acre, roughly ten bushels lower than farmers harvested in 2016.

“Farmers may have pockets that are doing a little better than that,” she said, “which is normally the case, but when they look at field averages, some are saying closer to 60 and some say closer to 50. That’s a respectable yield. It’s not a bin-buster but it’s a respectable yield.”

It’s respectable, especially when you look back at some of the challenges in soybean fields around the area. Farmers saw a few pockets of white mold in certain fields. Periodic cooler weather and excessive rainfall made it hard to just get the beans in the ground on time. Insect pressure was hit-and-miss. Beans didn’t suffer any drought-stress this year, but, the biggest challenge they did face was weed pressure.

Soybean harvest

Soybean harvest is always a challenging time of year but southeast MN soybean fields struggled with weed pressure, thanks to cold and wet weather limiting the timing and effectiveness of herbicide applications in the spring.

“Cool and wet weather at the beginning of the growing season made it difficult for the herbicides to even activate,” she said, “so some of the weeds escaped control early in the season. If farmers have to chase weed control through the summer, it gets pretty tough. Unfortunately, by the time we got to August, there were a lot of messy soybean fields with a lot of Waterhemp and Giant Ragweed in them.”

The weather made herbicide applications difficult to get down on time in the spring. Farmers are also dealing with increasing weed resistance to herbicides. When weed density gets high in bean fields, that affects yield negatively. Behnken said weed pressure was likely the number one story in southeast Minnesota soybean fields.

Houston and Fillmore County Extension Educator Michael Cruse said soybeans are coming out in those areas as well. While there are still some soybean fields turning brown, quite a bit of beans are already out of their fields.

“With the (up until recently) dry conditions, soybean fields dried out quickly and things progressed to the point where they were ready to come out,” he said. “Soybean harvest is officially off and running.”

While there aren’t a lot of hard numbers coming into his office yet in terms of yield estimates, Cruse echoed Behnken when he said early numbers say yields won’t be as low as some may have thought coming into harvest. Early-weed control challenges and an inability to apply herbicides on time will be the biggest factor in possible yield loss.

Here’s the conversation with Behnken: