Sledge Taylor, 73, walks his corn fields just outside Como, Miss. on Friday, April 17, 2026. The corn stalks are currently between vegetative stages known as V3 and V5, normally when Taylor would be applying nitrogen fertilizer. But he said he may not do it this year because of the cost of fertilizer. Jay Marcano for NPR hide caption toggle caption Jay Marcano for NPR COMO, Miss. – On a bright, dry Friday morning in Panola County in the Mississippi Delta, Sledge Taylor did the same thing he's done every morning for the last 53 years — the same thing his father did every morning, and his father before him. He walked his fields. The little green stalks of corn he grows on about 4,000 acres are between vegetative stages known as V3 and V5, tallied by the number of visible leaf collars on the stems. It's a critical stage for determining future yields, when the plant's roots claw deeper into the dark alluvial soil.…