在花卉栽培中,要对种子、圃地进行消毒,因为种子表面有各种各样的病菌存在,在播种前对种子进行消毒,不仅能杀死种子本身带来的各种病菌,而且可使种子在土壤中免遭病虫的危害。苗圃的连作土壤中有害微生物和地下害虫密度高,容易发生病害,因此土壤消毒的目的也是把有害微生物的栖生密度降之不使作物发病的程度,起着消毒和防护双重作用,从而提高苗木的成活率。消毒防腐药是指能杀死或抑制病原微生物生长的药物。消毒药是具有杀灭病原微生物的药物,在低浓度时仅有抑菌作用。而防腐药是能抑制病原微生物生长繁殖的药物,在高浓度时有杀菌作用。两者之间 In flower cultivation, the seeds and nurseries should be disinfected. Because there are various germs on the seed surface, the seeds are disinfected before sowing, which not only can kill all kinds of germs brought by the seeds themselves, Seeds are protected from pests and diseases in the soil. Nursery continuous cropping soil harmful microorganisms and underground pests high density, prone to disease, so the purpose of soil disinfection is to reduce the density of harmful microorganisms to prevent the incidence of crop disease does not play the dual role of disinfection and protection to improve seedlings Survival rate. Disinfection Antiseptic is a drug that kills or inhibits the growth of pathogenic microorganisms. Disinfectants are drugs that kill pathogenic microorganisms and have only bacteriostatic effects at low concentrations. The preservatives are able to inhibit the growth and reproduction of pathogenic microorganisms in the drug, bactericidal effect at high concentrations. Between the two