How to improve the germination rate of spring cultivating rice seeds
In order to improve the germination rate, uniformity and reduce the disease of the spring ploughed seeds. Rice seeds must be processed in several ways before sowing. It is embodied in the following three points: 1, drying seeds Seeding before sowing can increase the permeability of seed coat, enhance water absorption, enzyme activity and seed vigor, and also reduce germination inhibiting substances in seeds (eg: chaffamine A, chaffamine B, separation acid) The concentration of the plant, etc., thus promoting the early germination, increasing the germination potential and germination rate. Generally, it is 1-2 days before soaking seeds. 2, select seeds Since the seedlings before the three-leaf stage, the nutrients needed for their growth are mainly supplied by the seed endosperm itself, the seed fullness is closely related to the growth of the seedlings. Therefore, the use of seeds with full grain, grain weight and neat size is an effective measure to cultivate strong seedlings. 3, soaking seeds and disinfection Immersion and disinfection is one of the important measures to prevent and cure rice diseases. It can effectively kill rice blast fungus, rice blast fungus, sclerotium and sphagnum, which are adhered to the surface and body of rice by disinfection, and eliminate the source of primary invasion. Reducing the incidence of the field, reducing the amount of medication, has a multiplier effect. Generally, the seeds are soaked for 60-72 hours with 4000 to 5000 times of liquid soaking seeds, such as "soaking spirit" or "Shi Baoke" before planting, to completely eliminate and prevent seed-borne diseases.
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