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Winter Crops and Sunflowers

Winter Crops and Sunflowers

By Tina Saravia

When I started planting my winter vegetables this fall, I was looking forward to some radishes carrots, snow peas, spinach - the cool weather vegetables.

As the seeds started sprouting and slowly growing through the cooler weather and shorter days, I started noticing an unexpected crop.

I had previously planted some black oil seed sunflower (Helianthus annulus) in the same bed. Apparently, I missed some seeds when I harvested the sunflowers. So, alongside my vegetable crop, these sunflowers started growing. One of them has even bloomed. I was not aware that they grow this late in the year, much less bloom in late fall amidst the frosty weather and all the rains.

Source : ucanr.edu

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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.