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为控制种传病害的传播,减少或杜绝病害的发生,必须加强对种子的消毒处理。目前,国外对种子的化学处理技术已越来越受到人们的重视。1.种子化学药剂处理的特点种子化学药剂处理,因施药集中,因此省工、省药剂,效果好。种子经化学药剂处理后,除能直接杀死或抑制种子上的病原微生物及某些害虫外,有的药剂还能增强作物生长势,提高作物对土传病害的抵抗能力,进而增加产量。据试验,用化学药剂处理麦类种子,一般可提高发芽率3%～4%;用药剂处理玉米种子,不但可提高发芽率,还可增强抗逆性。
In order to control the spread of the disease, reduce or eliminate the occurrence of disease, we must strengthen the disinfection of seeds. At present, foreign countries have given more and more attention to the chemical treatment of seeds. 1. The characteristics of seed chemical treatment Seed chemical treatment, due to pesticide concentration, so workers, provincial agents, the effect is good. Seeds after chemical treatment, in addition to being able to directly kill or inhibit the pathogenic microorganisms on the seeds and some pests, and some agents can enhance the growth potential of crops and improve the resistance of crops to soil-borne diseases, thereby increasing the yield. According to the test, the treatment of wheat seeds with chemical agents can generally increase the germination rate by 3% ~ 4%. Treating corn seeds with the agents can not only increase the germination rate but also enhance the stress resistance.