Nine methods of seed treatment of wheat before sowing in spring

1. Prevention and control of diseases. 1. Soak the wheat seeds in cold water for 6 hours. Soak the seeds in 55 degrees Celsius water for 2 minutes to make the seed temperature reach 50 degrees. Then take it out and put it in 56 degrees warm water, keep the water temperature 55 degrees, soak it out for 5 minutes, cool it with cold water and then dry and sow it. It is very effective to prevent wheat smut, but the temperature and time must be strictly controlled. 2. Soak the seeds at constant temperature and put the wheat seeds in 50Mel 55 degrees hot water, stir immediately, make the water temperature drop rapidly to 45 degrees, soak out at this temperature for 3 hours, cool and dry to sow, it can effectively control wheat loose smut, scab, leaf blight and so on. 3. Soak the seeds with 50 kg of water to dissolve 0.5 kg of high quality quicklime, remove the dregs and put in the selected wheat seeds, so that the water surface is 15 cm higher than the seeds, and keep still and can not stir the water surface; the soaking time depends on the air temperature; soaking at 20 degrees Celsius for 5 days, soaking at 25 degrees Celsius for 3 days, and only 1 day at 30 degrees. Soaked wheat seeds do not need to be washed with clean water, but can be sown after being spread out to dry. It has a good effect on the prevention of wheat smut, scab, leaf blight, stem smut and so on. 4. Seed mixing with 75% wettable powder with effective ingredient of 0.3% seed amount can effectively control wheat loose smut and wheat smut and stem smut on wheat seeds and soil. 5. Strychnine is a new, efficient and internal fungicide, which has special effect on many kinds of diseases and insect pests of wheat products. According to the experiment, seed dressing with 20% of the seed amount of 0.08-0.1% can control wheat scattered smut, fishy smut and stem smut; mixing seeds according to 0.2% of the seed amount can control wheat rust, powdery mildew and sheath blight; mixing seeds according to 0.3% of the seed amount can control wheat total erosion and root rot, and so on. Second, to prevent and control underground insect pests, methyl isofenphos or phoxim seeds are mixed with 40% isosaliphate EC 50 ml or 50% phoxim EC 100 ml, 3 kg of water and 50 kg of mixed wheat seeds, and then mixed well and stuffed for 3 hours. It has special effect on mole cricket, grub, golden needle worm and other pests. Third, cure both diseases and insect pests. 1. In the mixed occurrence areas of pests and wheat total erosion disease, root rot, sheath blight and smut, 40% isosaliphate EC 50 ml (or 50% phoxim EC 100 ml), add 20% trimethophos EC 50 ml, 3 kg of water, 50 kg of mixed wheat seeds, mix well and sow for 3 hours. 2. "3911" mixed seed with 75% 3911 EC 150ml, 20ml 20ml, water 2murine 3kg mixed wheat seed 50kg, it can also treat wheat powdery mildew, root rot, underground pests, voles and so on. 3. Seed coating agent is a new compound preparation of medicine and fertilizer, which is specially used for crop seed coating, which is researched and invented by Beijing Agricultural University. It is different from the general seed dressing agent, when the coated seed is used, it can quickly solidify into a film, absorb with water after sowing into the soil, and slowly release medicine and fertilizer, which can play a role in preventing a variety of diseases and insect pests and promoting the healthy growth of seedlings. When mixing seeds, use the seed coating agent 75MUR 100g per mu, directly pour into the selected wheat seeds and stir evenly. According to the experiment, after the treatment of seed coating agent, the yield of wheat can be increased by 5.1%.