Seed coating method for preventing club root of oilseed rape and coated seeds

Abstract

The invention relates to the field of methods, in particular to a seed coating method for preventing club root of oilseed rape and coated seeds. The coating method includes the following steps that 1,a bacteria solution of bacillus amyloliquefaciens Bam22 is added into rape seeds and mixed evenly with the rape seeds, and soaked rape seeds are obtained for use; 2, filler and water are mixed evenlyaccording to the solid-liquid mass ratio of 1: (0.3-0.5) for use; 3, materials obtained in the step 2 are slowly added into the soaked seeds obtained in the step 1 under stirring, and the mixture isstirred evenly and dried by air to obtain the coated seeds. The survival rate of plants infected with club root can be increased by about 70%, the yield of rape is increased, the growth and reproduction of other pathogenic microorganisms can be inhibited on the basis of inhibiting the pathogenic bacteria of the club root, and the growth of rapeseed is facilitated. The method is harmless to soil, human beings and livestock, preparation is simple and the method can be easily applied on a large scale.

Description

technical field [0001] The invention relates to the field of methods, in particular to a seed coating method for preventing rape clubroot and coated seeds. Background technique [0002] Clubroot is a soil-borne disease of rapeseed caused by Plasmodium brassica infestation. When the environmental conditions are favorable for the disease to occur, clubroot can lead to a serious decline in the yield of rapeseed crops or even failure, which seriously threatens the production of rapeseed. [0003] At present, for the control of clubroot, chemical control, crop rotation and soil improvement are mainly adopted. Although soil improvement (such as applying a large amount of lime) can play a good role in preventing and controlling clubroot, it is easy to cause soil compaction and reduce soil fertility. Crop rotation is difficult to control clubroot because it cannot eliminate the growth of cruciferous hosts such as weeds in the soil in dryland farmland. Chemical control methods most...

AI Technical Summary

Problems solved by technology

Although soil improvement (such as applying a large amount of lime) can have a good effect on the prevention and treatment of clubroot, it is easy to cause soil compaction and reduce soil fertility.

Crop rotation is difficult to control clubroot because it does not eliminate the growth of cruciferous hosts such as weeds in the soil in dryland croplands

Chemical control methods mostly use chemical pesticides (such as Cyazofamid, Fluazinam) for control. In addition to seedbed soil chemical treatment and seedling irrigation, chemical control treatments also need chemical root irrigation during transplanting, and pesticides after survival. Seedling irrigation and other treatments can achieve better control effects; at the same time, due to the large amount of pesticides used and the risk of environmental pollution, long-term use of chemical pesticides will not only cause soil pollution, but also increase the health and safety risks of humans and animals; in addition, the control period is too long. too much, the cost of medicine is too high, and farmers cannot accept it