Early rice live broadcast has become the main planting method for large grain growers, which can save the process of breeding and transplanting, saving time and labor costs. So what are the precautions for rice live broadcast? How to preserve seedlings and prevent lodging? First, choose a good variety The early rice has a low temperature, and the direct seeding rice is shallow, the population is large, and it is easy to fall. Therefore, it should be selected early in the seedling stage with good cold tolerance, early early fast-growing, moderate tillering, strong disease resistance, short plant, and strong anti-reverse ability. Mature varieties, such as Xiangzao 45, Zhongzao 35, Zhuliangyou 819 and so on. Second, fine land preparation Live field should be ploughed and smashed early, rotted and weeds. One or two days before sowing, apply the base fertilizer and improve the land. Try to level the plot as much as possible. The drop in the field is controlled within 3cm. Because the unevenness of the field is easy to cause the planting depth and the uneven management of the field water after sowing, affecting the emergence effect; To ensure that no water is accumulated in the fields and fields, and that the fields are properly drained. Third, scientific seed processing 1. Seeds are incubated for 1-2 days before sowing to improve their activity and water absorption. 2. Selection of clear water to remove grass seeds, glutinous grains and diseased grains from the seeds. 3. Immerse the seed with strong chlorine or prochloraz to prevent the occurrence of seedling disease. 4, germination to white, buds can not be too long, otherwise it is not conducive to seed dressing and rooting. 5, 1 hour before sowing, use 35% butyl thiocarbazone to mix the buds to prevent bird damage. Fourth, the appropriate sowing Proper planting is the key to preventing rotten seeds and ensuring basic seedlings. Seeding methods are generally manual or on-demand. The early rice is stabilized by 10-12 °C, and the early rice broadcast in Jiangxi is generally around the Qingming period, from the end of March to the beginning of April, and at the latest before April 20. The sowing amount of hybrid rice is about 3 kg/mu, and the conventional rice is 8-10 kg/mu. Pay attention to uniform sowing. When the seeding is too dense, the rice stem is slender and easy to fall. If the temperature difference between day and night is large, the night temperature is below 9 °C or rainy days, the water can not be drained after sowing. The deep water layer should be preserved, and the water should be drained after the temperature rises. 5. Timely chemical weeding Grass damage is another difficulty in direct seeding rice. Therefore, chemical weeding is the key to the success of rice direct seeding. In order to completely remove the weeds, it is recommended to use the method of "one, two kills, three supplements". The specific operation is to drain the water in the field 2-4 days after sowing, and use bensulfuron (containing chlorpyrifos) or acesulfame, and the field is moist after spraying. In the 3-4 leaf stage of the seedlings, such as valerian, Qianjin, and ragweed, the water layer can be drained, and cyhalofop, flufenacil, dimethyltetrachloro, bispyribyl ether, and bentazone can be used. And its compound preparations and other control, rehydration one or two days after spraying; if there is still valerian (green barley), you can use cyhalofoprin plus oxazolamide plus orange peel essential oil for control. Sixth, seriously check the seedlings In actual production, some seedlings may be insufficient due to uneven seeding, uneven kneading surface, low seed germination rate, and low temperature and rainy weather. Therefore, in the rice 3-5 leaves, it is necessary to check the seedlings in time to replenish the seedlings, and to dilute the porridge to solve the problem of the difficulty of the direct seeding of the seedlings, and to apply urea and silicon-zinc fertilizer to promote early growth. For the case of low temperature rotten dead seedlings, water can be released on the sunny day to dry the field, enhance the vitality of the root system, spray the conditioner, and apply the quick-acting nitrogen fertilizer after 24 hours. Seven, comprehensive management against lodging It is well known that direct seed rice is prone to lodging, which affects rice yield and rice quality. In order to improve the yield and quality of direct seeding rice, in the production to strengthen the comprehensive management of fertilizer and water and integrated pest control to prevent lodging, the main measures are as follows: 1. Reasonable selection of seeds to control the amount of seeding and prevent the group from being too dense. 2, intermittent irrigation, timely drying the field. Before the two leaves of rice, the field is dry and the seedlings are dry. The rice is divided into the late stage of panicle till the stage of panicle differentiation until the third stage of the main ear, and it should be dry and wet before and after drying. If it is found that the growth of rice stems and leaves is too high, the amount of nitrogen fertilizer is too much, and the leaves are black, the fields should be exposed to the sun and heavy sun, otherwise the sun is exposed to light. 3, control the amount of nitrogen fertilizer, see the seedlings balanced fertilization. The urea in the early rice field should be controlled at about 15 kg/mu, and the amount of compound fertilizer should be controlled at about 70 kg/mu. In the tillering period, when applying urea, add the cloud of zinc and zinc fertilizer (can shorten the length of the first and second sections of the base, promote the tillering and thickening of the stem), which is beneficial to reduce the risk of lodging of rice; In combination with the prevention and control of pests and diseases, spraying potassium dihydrogen phosphate or rice iron drum granules to promote the formation of panicle granules, increase the grain weight, and prevent the premature aging from lodging. 4. If the silicon-zinc fertilizer of Yunzhongdi is not used in the tillering period, the seedlings will grow vigorously. If necessary, spray 15% paclobutrazol 30g with water before jointing. 5. Integrated pest management. The control of sheath blight and rice planthopper is not in place, and it is easy to cause lodging; the control of rice blast and rice stem borer does not directly affect the yield, and even the pellets are not harvested. The following points should be mastered in the prevention and control of pests and diseases: The first is "time is accurate." For example, the incubation period (2-3 years old) of borer and rice leaf roller is the best control period; rice planthoppers generally have 10-15 short-winged adults per hundred bushes, and nymphs have 400-600 Time is the best prevention period. Too early or too late will make the resistance of the insect body stronger and the control effect will be worse. The second is "drugs on the road." For example, the worms are controlled with avermectin or trichlorfon and phoxim; the leaf beetles are treated with methicillin, carbaryl, indoxacarb or chlorantraniliprole; and the rice planthoppers are treated with pyridone or ene. Control of acetamiprid and pymetrozine; control of tricyclazole and pyraclostrobin by rice blast; prevention and control of sheath blight with thiafuramide or thiafur·hexazol. The third is to use "a sufficient amount." Be sure to use the amount of foot and water accurately according to the instructions for use of pesticide products. After the pests are to be controlled, the disease should be based on prevention and centralized control. The above is the precautions and technical points of the early rice seedlings to prevent seedlings and prevent lodging. Because the early rice live broadcast is greatly affected by the weather, it is easy to cause seedlings and seedlings, so we must pay attention to preserving the seedlings and preventing lodging. For the wonderful pictures and popular comments on the early rice live broadcast, you may be interested in the following recommended content, welcome to read. Yellow rice wine is a traditional Chinese alcoholic beverage made from glutinous rice, yeast, and water. It is commonly consumed during festivals and special occasions, and is also used in cooking. The wine is fermented in a jar, which allows the yeast to convert the rice starches into alcohol. 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