Livestock production in the U.S. has seen massive consolidation, with thousands of animals being raised in close quarters. The midpoint U.S. dairy herd in 1982 had 80 cows, while in 2007 it had 570 ...
Manure has always been a valuable input to agricultural soils in our region. The value of manure has increased significantly in the last few years as the cost of commercial fertilizers has climbed to ...
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