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.
Example of how bushels of grain per ton of silage may vary at different yield levels
|Grain per Acre||Grain per Ton of Silage|
|89 Bushels||5.0 Bushels|
|117 Bushels||6.0 Bushels|
|124 Bushels||6.2 Bushels|
|131 Bushels||6.9 Bushels|
|152 Bushels||7.5 Bushels|
|160 Bushels||8.1 Bushels|
|180 Bushels||12.0 Bushels|
Relationship of kernel moisture to yield potential
|Water in Kernels||Yield of Grain as Percent of Max|
*These values are not a guide as to grain – silage ratios, but are shown as examples of the wide variation involved.