Corn
acreage should be sustained in Mississippi due to
many significant agronomic benefits it produces in
rotation systems and advantages of the regional corn
market. Corn grown in crop rotation significantly
increases productivity of all crops in the long run.
Reports consistently indicate 10-25% yield advantages
for cotton or soybeans grown in rotation with corn
on Mississippi farms.
Crop rotations normally improve
yields because many weed, insect, nematode and disease
problems build up when using the same management program
every year in continuous cropping. Crop rotation systems
effectively disrupt many of these cumulative effects,
preventing problems and reducing input costs.
Corn rotations can also improve
soil physical structure by recycling more organic
matter than cotton or soybeans and changing from a
tap rooted crop to a fibrous root system. Growers
can maintain these benefits by continuing to rotate
crops on a yearly basis.