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In recent years, the popularization and promotion of drought-fed larvae and cast-orbit technology have presented new conditions and problems that are easy to rot and die. Five measures should be taken to prevent these situations and problems. First, prevent blight caused dead seedlings. Blight is a relatively common disease on dry seedlings and dumplings, which often occurs when the seedlings suffer frostbite and their ability to resist falls. It is characterized by the fact that the blades of the sunny day are wilting, easily broken, and have invasive characteristics, and are easy to spread, spread, and spread. Blight is a physiological disease that can easily occur under alkaline conditions. To prevent blight, we must first do dry seedlings and floppy disk throwing, and do not use alkaline earth fertilizers such as earthen ash, brick ash, and grass ash. Neutral or alkaline bed soil should be acidified. Don't blindly plant too early to prevent cold damage due to strong cold weather. General requirements of the temperature stable above 11 °C before sowing. And use the "enecson" 800 times the seedbed nutrient soil water disinfection. Plastic film covered arch insulation. After sowing, it is mainly based on insulation. Generally, it is not stripped. Heavy winds and heavy rains should be promptly inspected. If it is found that the wind blows over the film, it must be promptly filled. One-, two-, and three-leaf stages were sprayed with 800-1000 times the "enecson" liquid to prevent the emergence of damping-off. If severe blight occurs, it should be immediately flooded with oxygen. Second, anti-nutrition soil board knot buds. After the plastic floppy disk is thrown and sown, if the wind blows away the mulch, the nutritious soil encounters heavy rain and causes nutritive soil compaction, causing hypoxia, and the emergence rate is low. A large number of seed buds die due to lack of oxygen. After sowing, the mulch film should be covered with clay on the four sides of the film. If it is blown, it must be promptly filled. Wet cultivating cultivating floppy disk in Putian, especially in the bud period, it is necessary to pay attention to not collecting water in the ditch to prevent waterlogging on the carcase. Third, prevent water and rotten buds. Waterlogged shoots often occur in moist wetlands to cultivate castors. Early rice seedlings were planted until now, such as the ditch filled with water, and even water flooded into the trunk, causing trampoline and nutrient soil waterlogging, the emergence of anoxic bud phenomenon. Therefore, with the wet seedlings cultivated throwing seedlings, after sowing until now is green, be sure to do not store water in the ditch, and pay attention to deepening and dredging drainage ditch, so that rain and ditch dry. After two leaves and one heart, do sunny water full of ditch, cloudy half ditch water, rain drain ditch water. Fourth, drought-resistant seedlings. Dry seedlings or dry seedlings are sown on rainy days after sowing. Some farmers think that there is no shortage of water in the bed soil and the seedbed is not watered, which leads to dry water shortage. The seedlings are late and irregular and cannot absorb water below the topsoil. Therefore, before the three-leaf stage, the dry seedlings must be poured once every six days to keep the seedbeds moist. Fifth, prevent the death of young plants. During the period of mulching film, the cold temperature or too high temperature in the film caused the burning of seedlings, especially after the sunny weather due to low soil temperature and root water absorption, and the sudden increase in temperature caused a large number of transpiration and dehydration to cause physiological dead seedlings. Therefore, we must pay attention to the sunny days after the film lift ventilation cooling, pay attention to water moisturizing. Observe the shade with some straw cover film to cool down when it is clear, and then remove the film after hardening.