When taking a SAP sample of corn it is pretty similar to the soybean SAP sample. First, you will need to pull the lowest, developed, old leaf.
Once you pull the lowest, developed, old leaf you will need to tear off either end as the lab only wants the middle 5-6 inches. All of the old leaves go in one bag together.
Now you are going to pull the newest leaf with a fully developed collar.
Again, make sure to tear off either end so that all you have is the middle 5-6 inches and put all of the new leaves in their own bag together as well.
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