The yield in the U.S. averages approximately 1 1/3 bales of lint and about 1,078 pounds of seed per acre. This yield is about twice as much as in 1950 and is due to better land use, improved plant varieties, mechanization, fertilization and irrigation. It also is a result of improved disease, weeds and insect control. A major part of the credit for this progress goes to scientists working at experiment stations as well as in private and public laboratories, and to agricultural Extension workers who bring the findings to farmers.