Contrary to popular belief, the ratio of bushels of grain per ton of silage is not a constant factor. Grain yields increase much more rapidly than do total of forage yields. Ratio of grain per ton of silage fluctuates widely and this is an important consideration in estimating silage feeding values or costs of corn silage. Each case should be determined on its own merits as general rules are not consistent.view pdf
Example of how bushels of grain per ton of silage may vary at different yield levels
Relationship of kernel moisture to yield potential
*These values are not a guide as to grain – silage ratios, but are shown as examples of the wide variation involved.