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Darren Hefty explains where fertilizers such as phosphorus and gypsum come from.
Up Next in 2020
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Gypsum | Ag PhD
Darren Hefty talks about the value of a soil amendment called gypsum.
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Goss's Wilt | Ag PhD
Darren Hefty talks about a corn disease called Goss's Wilt.
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Early Corn Harvest | Ag PhD
Darren Hefty explains why corn harvest is ahead of schedule this year.
