When utilized as crop nutrition, NDSU Extension Livestock and Environmental Management Specialist Mary Keena says there’s a difference in fertilizer value from composted and fresh manure. “When livestock producers push their manure up in piles, that’s called stockpiling and most of the time that’s a management strategy to help dry out the pens. That manure goes through a burndown cycle. When we compost it, it goes through several burndown cycles after being turned a few times. We not only stabilize the nitrogen in composted manure, but we also kill weed seeds, pathogens, and parasites.”
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