As farmers are getting to work on harvest, many are using desiccants to spray down crops to get them to dry out quicker.
Those chemicals come with a bevy of rules and regulations, explains Saskatchewan Ministry of Agriculture Crop Extension Specialist Mackenzie Haldun.
"There is a minimum number of days that must pass after applying a product, such as a desiccant before a crop can be swapped or straight cut, and this is known as a pre-harvest interval. These pre-harvest intervals, also known as PHIs, are in place to ensure that the levels of chemical residue on the harvested crop are within acceptable limits.”
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