How to manage planting sweet corn in autumn?

How to manage planting sweet corn in autumn? Please introduce that planting sweet corn in autumn can refer to the following methods: first, scientific fertilization of sweet corn should be high-yield. in fertilization technology, it is necessary to master the principles of suitable application of base fertilizer, early application of seedling fertilizer, sufficient application of strong stalk fertilizer and heavy application of spike fertilizer (ear fertilizer). According to the soil fertility of different previous cropping, the general base fertilizer was applied after transplanting, with 8 kilograms of human material or 10 kilograms of ammonium bicarbonate and 10 kilograms of phosphate fertilizer per mu, early application of seedling fertilizer, 6 kilograms of 7 days after transplanting, 7.5 kilograms of urea and 5 kilograms of potassium chloride combined with 7.5 kilograms of urea and 5 kilograms of potassium chloride. Heavy application of anti-cattail fertilizer, because autumn corn has only one peak of fertilizer absorption, ear fertilizer should account for more than 50% of the total fertilizer, ammonium bicarbonate 50 kg per mu, calcium superphosphate 25 kg, hole pinch application, plus urea 5 kg flushing water application, and combined with ridge soil cultivation to improve fertilizer efficiency. Second, after ploughing and cultivating the soil in mid-August, the temperature is high, there are many thundershowers, the weeds grow fast, and the root system of maize is strong, if the soil is hardened, the ventilation is poor, the lateral roots are few, and the roots are not deep, so it is necessary to carry out multiple mid-ploughing. Middle ploughing should be mastered: the principle that the first cover is shallow, the second time is deep, and three times and four times do not hurt the roots, combined with fertilization and milling ditch soil, it can not only prevent lodging and fertilizer, but also press the grass. Autumn corn should do a good job of drought resistance and seedling protection, furrow irrigation is appropriate, do not slow irrigation, but in case of waterlogging must be timely drainage to promote root growth. Third, the prevention and control of diseases and insect pests is an important key to win the high yield of sweet corn. Break the green ear of disease prevention and pest control, it is strictly forbidden to use highly toxic or residual pesticides for a long period of time, in order to meet the requirements of pollution-free. The main pest, corn borer, also known as drillworm, uses larvae to drill into corn. The control method can be controlled at the end of the heart leaf and the male leaf silk stage, you can use Regent 1000 times liquid spray or use 90% crystal trichlorfon 800 color 1000 times liquid, 50% dichlorvos EC 800 color 1000 times liquid irrigation, take off the sprayer head (diving piece) and spray in the trumpet leaves, each plant 10 ml. At the heading and silking stage, it was sprayed on the male ear and the silking part of corn. Corn aphids cluster in the heart leaves at the corn seedling stage, affecting growth and development; damage at the ear stage, and the secretion of honeydew affects photosynthesis, resulting in a decrease in 1000-grain weight, and the control of aphids can be combined with the control of corn borer. 10% imidacloprid (once net) 2000 times liquid spray. The main diseases are sheath blight and large and small spot. 5% Jinggangmycin 500 times solution can be used to control sheath blight. In the initial stage of the disease, 50% carbendazim 500 times or 50% carbendazim 800 times or 77% mancozeb 500 times or 70% mancozeb 500 times were used for prevention and treatment. Fourth, the whole ear sweet corn has strong tillering ability and a large number of branches, so it is necessary to carry out the whole plant in time, leaving a main rod in each hole and erasing the branches. When silking and heading of corn, no matter each plant has two or three ears, only one upper ear can be left to remove the lower ear, and the three leaves of the stick should be kept intact in order to lay the foundation for the big ear. Click to get more corn planting techniques click to get more food crop planting techniques