Manure Management 101 by Caitlin Bainum Posted: November 8, 2017 The average 1000 pound horse will accumulate nearly 10 tons of manure and stall waste each year. Multiply that number by the amount of horses in your herd and that is your annual manure contribution. The… Read More Category: Agriculture, Conservation, Farm Management, Water Tags: agriculture, Bainum, Caitlin, cattle, compost, Equine, eutrophication, Farm, management, manure, sinkholes, water