crops. Silage made from grass, canola, oats or wheat are chopped into pieces (depending on knife, cutterhead, and length of cut transmission configuration), and treated with additives including bacteria, enzymes, mold inhibitors, and preservatives to accelerate the fermentation process. When silage is made of corn or sorghum, additives are not necessary because of the high sugar and starch levels in the plants. Additives, however, are frequently added to corn and sorghum to augment their fermentation. See also List of farm implements References Harvesters Forages Articles containing video clips