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Pulse Market Insight #232

Weather is and always will be the dominant driver of crop markets. That’s obvious. All other factors – geopolitics, trade wars, government policy, hedge funds – take a back seat to rainfall and temperatures. This time of year is the most critical, as crops emerge and yield potential is already being determined.

While every growing season is different, western Canada has seen extremes in the past 3-4 years. In some areas, 2020 was already a drought year, which then widened and deepened in 2021. Most, but not all, areas saw relief in 2022. The 2023 growing season started with widespread concerns about dryness, especially in central and northern areas that are typically wetter at the beginning of the year. Just in the past week though, welcome rains fell in northwest Alberta and north central Saskatchewan. But that still leaves large parts of Alberta facing dry conditions as the crop emerges.

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

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.