Methods for harvesting corn using combine harvesters

The method of 13, wherein removing the ears of corn from the corn plants with the corn header of the combine harvester includes engaging the corn plants in the corn header with stalk rollers configured to separate the ears of corn from the corn plants.

The method of 14, further comprising:

• rotating the multiple stalk rollers at a speed of between about 1,000 rotations per minute and about 1,200 rpm rotations per minute to thereby separate the ears of corn from the corn plants;
• and
• rotating the rotor of the threshing unit within the housing at a speed of between about 200 rotations per minute and about 400 rotations per minute to thereby remove the corn kernels from the ears of corn by pushing the ears of corn against the multiple concaves and the multiple separating grates of the housing.

The method of 21, wherein removing the ears of corn from the corn plants with the corn header of the combine harvester includes engaging the corn plants in the corn header with stalk rollers configured to separate the ears of corn from the corn plants.

The method of 22, further comprising:

• rotating the multiple stalk rollers at a speed of between about 1,000 rotations per minute and about 1,200 rpm rotations per minute to thereby separate the ears of corn from the corn plants;
• and
• rotating the rotor of the threshing unit within the housing at a speed of between about 200 rotations per minute and about 400 rotations per minute to thereby remove the corn kernels from the ears of corn by pushing the ears of corn against the multiple concaves and the multiple separating grates of the housing.