Biological Systems: Theory and Innovation

Qualitative and quantitative characteristics of soybean yields largely depend on the effectiveness of measures against pathogens caused by phytopathogenic bacteria, which lead to the loss of 30-40% of grain yield. One of the elements of biologization is the use of trace elements in the cultivation of soybeans. The work has been devoted to determining the sensitivity of highly active strains of nodule bacteria and representatives of pathogens of soybean bacteriosis to trace elements preparations Dobrodiy Comfort and Dobrodiy Comfort-Copper, which were obtained by electropulse ablation, and comparing their action with traditional chemical pesticides. For comparison, the drugs of traditional cultivation of soybeans have been used: Rankona, Maxim XL, Rydomil Gold, Propuls. Classical microbiological, phytopathological, and statistical methods has been used in the work. In particular, the reliability of the influence of factors has been established by the value of the probability level "p", which was calculated using the program STATISTICA 8. The obtained results have indicated a high sensitivity of yellow pigment pathogens of soybean bacteriosis to preparations Dobrodiy Comfort and Dobrodiy Comfort-copper in native form. The causative agent of angular spot of soybeans has not been sensitive to these compositions. Study have shown that Dobrodiy Comfort and Dobrodiy Comfort-copper are non-toxic to bacteria of the genus Bradyrhizobium and Rhizobium. According to the results of preparations, work has been determined that the effect of these preparations on phytopathogens remains in the range of 10-3-10-4. According to the For the first time absence of an bacterial activity at the specified dilution and toxic effect on nodule bacteria, the use of ecological drugs Dobrodiy-Comfort and Dobrodiy Comfort-Copper in the system of soybean protection against bacterial diseases has been analyzed and recommended

antibacterial activity; soybeans inoculation; microelements; electropulse ablation; toxicity