Types

• Regular sweet corn, also known as su sweet corn, comes in several hundred different varieties, with about 150 seeds per pound. Super-sweet corn, referred to as sh2, contains more sugar than all the other sweet corn varieties, making the seeds more crinkled and smaller, with a higher seed count per pound.
  
  

Spacing

• Rows of sweet corn should be kept 30 to 42 inches apart. The plants can be placed 8 to 10 inches from one another. An acre planted in this way produces about 17,000 plants, according to the North Carolina Cooperative Extension Service.
  
  

Amount

• For an acre of a regular sweet corn planted as mentioned above, you will need 9 to 10 pounds of seed per acre. For super-sweet corn patches, you'll only need 5 to 6 pounds of seed per acre.