I. Isolation planting: Sweet corn and common corn should be isolated and planted so as to avoid stringing. In general, the plain area is separated by more than 400 meters. If there are natural barriers such as forests, hills, villages and houses, the distance can be shortened. If the maize is planted adjacent to the flowering stage, the flowering time must be staggered for more than 15 days. Second, the fine sowing: sweet corn sprouting and arching ability is weak, to choose good fertility, moderate acidity, irrigation and drainage convenience, at the end of the foot of the planting. For fine soil preparation, shallow broadcast sowing, the depth is generally 4 cm. Third, the stage of sowing: sweet corn can not be put long after harvest, therefore, the planting of sweet corn according to market demand and plant processing capacity, staged sowing, and early, middle and late maturing varieties to improve economic efficiency. Fourth, rational dense planting: The planting density of sweet corn, according to species characteristics, soil fertility, sowing date sooner or later, planting methods and market demand. In general medium fertility soil, it is better to use 4,000 strains. Early maturing varieties can be denser and late-maturing varieties can be thinner. V. Timely visits: Sweet corn generally has a strong tillering ability, and the tillers compete with the main stem for nutrients and moisture, affecting the growth of the main stem and the degree of hair growth. The delivery should be eliminated as soon as possible. Six, to strengthen management: General Mushi farmyard fertilizer 3000 to 4000 kilograms, pure phosphorus 7 kilograms, 5 kilograms of pure nitrogen as the base fertilizer, six leaves in a timely manner when watering, and chase pure nitrogen 5 kilograms. As the growth of sweet corn can be used in the big bell mouth topdressing nitrogen fertilizer. In irrigated sweet corn fields, the irrigation should not be less than 3 to 4 times, and they should be carried out before jointing, heading flowering stage and filling stage. Sweet corn has a high sugar content and is easily damaged by corn borer. It can be sprayed with phoxim or methamidophos 1000 times in the early stage, or in a large bell period with a ratio of 1:5 with 3% carbofuran and fine sandy soil. Mix, 2 to 3 grams per plant poured into the heart. VII. Timely harvesting: The harvesting period is mainly based on the appearance of the seed grains, and the number of days after pollination is calculated to determine the water content, the sugar content, and the taste is determined by taste. Sweet corn generally has the highest sugar content 20-25 days after silking, and the thinnest skin is the most suitable for harvesting. Source: Tianjin Agricultural Science and Technology Information Network Contributor: Tianjin Plant Protection and Quarantine Station