The first is that the seeds that are selected for the farmers' self-cultivation and self-retention seeds often have irregular grain sizes and often contain mixed grains such as damaged grains and grass seeds and grains with pests and worms. After seeding, the growth of wheat seedlings is inconsistent and easy to form. Weak seedlings affect high yields. Therefore, before the sowing of wheat, the selected seeds were carefully selected to remove the damage, diseases and insects, and debris, to ensure the seed quality and lay the foundation for Miao Qi, Miao Quan and Miao Zhuang.
Second, the germination test must be conducted before the germination test germination test to determine the seed germination rate and germination potential, to avoid the poor seed germination rate caused by poor seedlings, and to determine the appropriate seeding amount to provide the basis to ensure that the whole seedling sowing. Simple seed germination test method: take two wheat seeds, each 100 grains, soak the seeds in warm water of 30°C for 3-4 hours, then take two oil-free dishes and place 4-5 layers of toilet paper on each plate. The soaked seeds were then discharged onto toilet paper, and then covered with 3-4 layers of toilet paper. Finally, the warm water was used to wet the toilet paper at 30° C. The germination tray was placed in a warm place and the germination rate was checked after 3 days and nights.
Third, before sowing, drying seed before sowing wheat can prevent mildew and insects, promote seed ripening, break the dormancy period of seeds, increase germination potential and germination rate, and is conducive to high yield of strong seedlings. According to experiments, the germination rate of sun-dried seeds can be increased by 14-16%, with an average increase of about 15%. The drying time is generally set at 25-30 days and 7-10 days before sowing to increase the seed germination rate.
Fourth, the seed dressing of pesticides can be used for seed retention. 0.3% of phoxim and 0.1% of seed weight of triadimefon are mixed with 8% of water, formulated with liquid medicine, sprayed on wheat seeds, and stirred for 8-10 hours. You can sow. It has a remarkable effect on the control of underground pests and seedling pests and diseases.
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