With machines you can take much of the hard, heavy work out of harvesting grass sileage and put the chopped grass in the silo with only 1/2 man-hour per ton. Although it takes a good deal of equipment to do this, you can also use this same equipment to harveset chopped dry hay, and to make regular row-crop silage.
Barger, E. L.
"Grass Silage Mechanized,"
Iowa Farm Science: Vol. 3
, Article 4.
Available at: https://lib.dr.iastate.edu/farmscience/vol3/iss11/4