Machinery is taking a lot of the hard work and time out of haymaking. With our power mowers, pulled by tractors, we can cut 2 to 4 acres of hay an hour. That makes the labor costs pretty low.
Barge, E. L.
"Field to Bale to Barn!,"
Iowa Farm Science: Vol. 1
, Article 3.
Available at: https://lib.dr.iastate.edu/farmscience/vol1/iss12/3