Soybeans continue to set and fill pods: Bean Report

Aug 17, 2022

Manitoba Pulse and Soybean Growers (MPSG) says soybeans are continuing to set and fill pods.

MPSG Production Specialist Jennifer McCombe-Theroux gave us an update.

"Most fields ranging from the R4 stage, where pods are three quarters of an inch long at one of the top four nodes, to R5, the beginning seed stage. We are seeing and hearing of soybean aphids across the province, with some at spraying thresholds. Grasshoppers are also continuing to be a challenge in some fields and will need to continue to be monitored."

She also commented on field peas.

"They're ranging from the R4, the full pod stages, to R6, a mid-maturity staging. With some earlier planted fields getting closer to harvest at the R7 staging. This is where 75 to 80 per cent of the pods are golden brown in colour. We are seeing some yellowing of field peas due to saturated soils, resulting in root rots. It's a good idea to get these plants tested to understand which root rot it is."

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Video: Root Exudates, Soil Biology, and How Plants Recruit Microbes | Field Talk Friday

Field Talk Friday | Dr. John Murphy | Root Exudates, Soil Biology, and How Plants Recruit Microbes

Most of us spend our time managing what we can see above ground—plant height, leaf color, stand counts, and yield potential. But the deeper you dig into agronomy, the more you realize that some of the most important processes driving crop performance are happening just millimeters below the surface.

In this episode of Field Talk Friday, Dr. John Murphy continues the soil biology series by diving into one of the most fascinating topics in modern agronomy: root exudates and the role they play in shaping the microbial world around plant roots.

Roots are not passive structures simply pulling nutrients out of the soil. They are active participants in the underground ecosystem. Plants constantly release compounds into the soil—sugars, amino acids, organic acids, and other molecules—that act as both energy sources and signals for soil microbes.