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The sweet corn kernel has a lot of thin juice and high sugar content and is a health food favored by consumers among numerous corn varieties. In the autumn, if the matching techniques such as mudball breeding, timely sowing, and proper close planting are adopted, the yield per mu can reach 800 kg or more, and the production efficiency is significant. The high-yield cultivation techniques of autumn sweet corn are summarized as follows: 1. Select Guangdong Sweet No. 3, Jiamei No. 1, Nongda Super Sweet No. 1, New Century No. 1, Sweet Sweet No. 2, Sweet Sweet No. 3, Guangtian No. 2 Such as super sweet or sweet corn varieties. Second, the fine earthworms are planted and planted, with a width of 80-85 cm, a width of 25-30 cm, and a depth of 30 cm. Before the 5-7 days of land preparation, we use the bactericide Leaku 747 solution with 150 grams of water to 30 kg in the whole field. If the temperature is lower, spraying should be carried out 2-3 days in advance. If the temperature is high, It can be postponed properly for 1-2 days and give full play to its efficacy. Third, timely sowing 1, suitable broadcast time: sweet corn affected by the temperature is too large, when sowing early in autumn when the seed is too early due to high temperature throughout the whole period of growth shortened, reduced yield; too late to sow, during the pollination is vulnerable to low temperature Frost effect. Therefore, sowing time should be chosen from late July to mid-August. 2. Prepare the seedbed: The seedbed is 1.2 meters wide (including 30 cm in width). After the leveling, the surface is wetted with manure to ensure the humidity of the seedbed. Then, 1 kg of rice bb Fertilizer is uniformly applied as a base fertilizer for every 10 square meters. Note that the seedbed must be flat so that the mud pellets are closely attached to the seedbed to reduce the water loss in the seedbed and to help the seedlings take root. 3, fine sowing: First, the fertile soil sandy loam + a small amount of grass ash (0.5 kg of ash per 100 kg of soil) as raw materials made of clay balls (dry and wet) placed on the seedbed. About 4,000 mud pellets are used per acre of Daejeon, and about half an orange is used for each clay pellet. Use the index finger to drill about 1.2 centimeters deep, and put one seed per hole after slightly drying. Mud pills should leave about 5 centimeters of space from the side of the skull to prevent the mudballs from appearing after reconstituting. The second is to do a good job of reconsolidation work. Spread fine soil on the mudballs, cover the seed holes and fill the mudball gap. Use a shower or sprayer to soak the wet noodles. Then mix 1.5 kg of fine sand and 0.1 kg of rice. Spread evenly on the surface to prevent the harm of underground pests. 4. Film Coverage: Sweet corn seeds are very sensitive to moisture, and water in the seed holes can easily cause the seeds to swell and die. Therefore, after the soil is covered with a thin film to prevent rain erosion, after the seedlings are unearthed, the film is peeled off, and the seedlings are applied by 1:20 light urine water to promote seedling growth. Fourth, a reasonable close planting 1, spray to send the graft drug: 1 day before transplantation with 90% of insecticidal 800 times sprayed seedlings. 2. Transplantation in a timely manner: 2.5 seedlings after seeding (8-10 days after sowing). Choose a cloudy day or a sunny afternoon for transplantation. Before planting, the seedlings should be classified as one large seedling and one seedling. Two rows of plants were used, with a row spacing of 55 cm, a spacing of 30 cm, and about 3,800 plants per acre. Planting holes before planting and applying 15kg + 500kg of rotten farmyard manure as base fertilizer with potassium sulfate compound fertilizer. Before the planting, the planting hole is soaked and wetted. When planting, the planting hole cannot be planted too deeply. The root of the seedling can not directly contact with the basic fertilizer. The seedling leaves go to the ditch and plant the rooting water. V. Scientific top dressing 1. Early Miao Miao: 20 days after transplanting per acre, irrigated manure water, 20-25 lbs or urea, 4-5 kg, 1000 kg of water, to promote the growth of roots and lay a good foundation for high yield. . 2, Qiao Shi strong stalk fertilizer: corn 5-7 leaves, Mushi sulfate potassium fertilizer 15 kg + 5 kg of urea, fertilizer applied to the corn stem 8-10 cm from the surface and the soil, seedlings For the weaker ones, 8-10 kilograms of compound fertilizer was applied during the big bell mouth period (about 11 leaves). 3, re-apply strong grain fertilizer: corn 3-4 days after heading, Mushi Norwegian compound fertilizer 20-25 kg, can significantly increase the weight of corn single-seeded. At the same time, potassium dihydrogen phosphate, phytochemicals, nucleotides, etc. can also be used for extra-root top dressing 1-2 times to increase the seed setting rate. Sixth, scientific water sweet corn not only avoids water, but also fears drought. It requires less water in the early stage of growth, especially when the seedling stage is immersed, it can easily damage the root system and even cause plant death. The water requirement during the heading grouting is relatively large. At this time, the field should be kept moist, and the dry land can be filled with water to ease the drought. However, rapid irrigation should be done to prevent waterlogging. Seven, timely earth sweet corn 5-7 leaves when combined with fertilization, soil loosening, weeding, the first earth-cultivation, that is, small earth, the specific approach is to plant the ditch soil to the sides of the plant, but not too much, so as not to crush Stems and leaves are the standard. After entering the big bell-mouthing period, the second fertilization is performed in combination with the third fertilization, ie, large earthing, to ensure that the root system is not exposed, and the resistance to plant lodging is increased, and the nutrient absorption area is also increased. VIII. Immediately after the emergence of female crickets, the locust should be determined in time before silking. Generally, only the topmost pod is left, or the second pod below the top of the corn lobule is left to eliminate the phenomenon of multiple pods. , increase the commercial value of sweet corn. 9. Prevention of pests and rodents 1. Toxic rat: Sweet corn seeds and fresh pod seeds are high in sugar content and are easily harmed by voles. Therefore, they are made of sodium salt and rice 10 days before sowing and 10-15 days before harvesting. Poison Valley is applied to poisoned rats in the field to reduce losses. 2. Insect pests: Ground tigers: The land plots used as vegetable garden soils in drylands and the former are seriously damaged by the ground tigers. They can be planted with phoxim 800 times solution before planting, or can be planted 5-7 days after planting. . Bighead cockroach, cockroach: Mu 0.5 kg trichlorfon + 0.5 kg of phoxim + a small amount of brown sugar + 20 kg of rice bran made of bait ring side, poisonous kill bighead cockroach, cockroach and other underground pests. Corn borer: In the big bell mouth period, the mu 0.4 kg of Jinyun corn-specific organisms are applied to the “trumpet†by 10 kg of drug-mixed sand, which can effectively prevent and control a variety of insect pests, especially corn borer damage. After pollination, 0.1-0.2 kg of Jinyun corn-specific biological pesticide was used to control 30 kg of water twice, and only corn stalks and filaments were sprayed during specific operations. The control effect was better. Locust: Before and after heading, use dipterex 800 times liquid or fluke 1500 times for control. 3. Diseases: Rhizoctonia solani is controlled by Jinggangmycin powder or Jinggangmycin agent. Large and small leaf spot can be controlled by Rhynchophora or Rhizoctonia. Rust can be obtained by triadimefon or agricultural streptomycin. Prevention. 10. The timing of timely harvesting sweet corn harvesting is more stringent. Harvesting is too early, and the sweetness and yield cannot meet the requirements. If the harvesting is too late, the corn kernels will shrink, the sweetness will decline, and the yield will decrease. Therefore, it is a standard that the corn silk is dry, the pale leaf color is light, and the grain is full and golden or orange. When harvesting, 8-10 loquat leaves should be preserved to ensure the quality of fresh taro and extend the storage time.