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Rice prevention and control should be good
Rice rotting includes rotten species, rotten buds and rotten roaches. During the rainy season, many rainy days and rainy weather are not conducive to the growth of rice seedlings. The seedlings are weak and susceptible to pathogenic bacteria. As a result, grubs often occur. In severe cases, rice pods are affected by rice cultivars. Do a good job of the following "eight customs." The first is the selection of the crop: To use seeds with high grain content, germination rate, and high germination potential, hybrid rice seeds should be seeded separately and full-grained seeds must be sown and managed at different levels. The second is the drying of the seeds: the seed must be sunned for 2-3 days before soaking to increase the seed's water absorption rate and germination potential. The third is disinfection: the seeds should be sterilized with 300 chlorinated soaking seeds or 50 kg of methamidophos in each acre and 5 kg of poisonous soil should be sown in the soil. The areas or species with severe bastard disease can be sterilized by seedling soaking. . The fourth is the soaking and germination of the seeds: Before sowing, pick out the sick and insect-bearing seeds and soak them with Shuofeng 481 for 6-12 hours (0.1% natural brassinolide 481 is first dissolved in warm water with 50-60°C in a small amount, 5 grams 20 kg of water per bag; 2 grams of water per bag mixed with 10 kilograms of water, the amount of seed soaked to completely soak the seed, and dry to sow. Can promote the transformation of nutrients and embryo germination, improve the ability to resist low temperature, increase the germination rate and germination potential, and promote the emergence of neat and tidy; Fourth, it is necessary to heat and germination, planting valley after planting the chest is appropriate. The fifth is the heat preservation: the use of film insulation is the most effective measure to control rice gills, it should be immediately after sowing cover film insulation, generally kept sealed before the green, and later pay attention to ventilation hardening seedlings to improve the resistance of seedlings, Move (throw) about 10 days before planting and select sunny day to remove the film. Sixth, fertilization is concerned: Apply sufficient organic fertilizer in Putian, use bran-rehabilitation agent or yam-fertilizer to raise seedlings with special functions such as disease prevention, chemical control, and nutrition, etc., and at the same time, in order to promote seedling growth and tillering, raise seedlings. The anti-low temperature ability and suction strength, enhance the overall quality of seedlings, after the uncovering film can also spray abundant 481 and topdressing potassium fertilizer. Seventh, the irrigation is related to water-feeding. It is best to use dry-bed breeding or throwing-out seedlings. When using wet-breeding seedlings, it is also necessary to keep the surface waterless in front of the 2 leaves and 1 heart to improve the ventilation and promote the growth of the root system and enhance the stress resistance. . Dry-bed breeding and seedling-seeding cultivation are conducted throughout the field during the dry season. The moist seedlings are raised in front of 2 leaves and 1 heart, and can be reared afterwards. However, in order to prevent the death of seedlings due to physiological deficiencies during water removal, watering or irrigation should be performed. Eighth, it is prevention and disease prevention: on the basis of seed disinfection, the use of multi-functional rice seedlings and fertilizers for raising seedlings can basically achieve the effect of preventing disease, but if the disease occurs later, it should be immediately controlled with chemicals.