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Ag PhD Farm Basics
Herbicide Modes of Action
Darren and Brian Hefty explain why farmers use different categories of herbicides, or "modes of action", when controlling weeds in crop fields.
Up Next in 2020
How Do Farmers Know When to Harvest?
The Hefty brothers discuss factors that influence a farmer's decision of when to harvest their crops.
Why Do Farmers Rotate Crops?
Brian and Darren Hefty discuss the reasons why farmers alternate, or rotate, which crops they plant on their farm.
Brian and Darren Hefty explain how farmers protect water quality and their fertilizer investment by using nitrogen stabilizers to keep nitrogen in their fields and out of the water supply.