Sowing is the basic step to obtain high-quality and high-efficiency cotton. In order to guide the cotton farmers to scientifically plant cotton, the following sowing techniques are proposed. 1. Selecting good cotton varieties focuses on selecting early-maturing varieties. Such as the state trial "冀668" and 99B and other fine varieties. To preserve seedlings, germination tests must be done before sowing to determine the appropriate seeding rate. The sowing amount of the machine is about 2 kg/mu; the seeding rate for artificial seeding is about 1.5 kg/mu. 2, take the plastic film covering technology has a warming, security, and promote the role of early-onset seedlings. The suitable sowing date for mulch cotton is April 15-25; the open cotton is generally sown after April 25, and ends before and after May. 3, the principle of reasonable dense planting is: high water and fertilizer plots are suitable for sparsely planted in thin and dry land. The medium-sized plots can hold up to 3,500 plants per mu, and the dry and thin areas should reach about 4,000. To take large and small rows, 80 cm wide and 50 cm narrow. 4. Apply base fertilizer to reapply flowers and bells to reach 250-300 kilograms per mu of seed cotton, 10 to 20 kilograms of urea, 25 kilograms of diammonium and 10 to 20 kilograms of potassium sulfate per mu of medium-sized plots. Catching 15 kg of urea. Insect-resistant cotton is more sensitive to organic and potash fertilizers. Organic fertilizer and potash fertilizer should be added. If the potassium is insufficient, red stem blight of cotton leaves and premature aging will occur, resulting in reduced yield. 5. The simplified cultivation technique of the “Kai 668” cotton seed in the state trial is suitable for the simplified cultivation of the cotton fields with good water and fertilizer conditions and fertile soil, which can save labor and time. Usually two rows of planting methods are used, the size of which is generally 1 meter wide, the width of the small row is 0.45-0.5 meters, the plant spacing is 1.2-1.5 feet, and the row spacing is generally 1-1.2 meters. 1 foot from the plant. The density of mu is controlled at 1500-1800 plants. If the mu-density is about 1500, all the leaves of the cotton plants will be preserved; if the mu-density is about 1800, 3 leaf branches will be kept. July 10th - 15th, playing at the top, playing at the top to grasp 10 fruit branches. According to the timely control of cotton field growth.