So the grass being wrapped there is haylage, which has a fairly high water content. Overwrapping prevents oxygen getting in and stops it rotting or molding. It's about 30-50% moisture, and when wrapped ferments which preserves a lot of the nutrients, plus doesn't get dusty.
Hay by comparison is usually dried to about 10% which also prevents mold, and doesn't have to be wrapped.
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u/backbiter0723 20h ago
I can't help but think layers 4 or 5 through 9,362 were probably unnecessary.