Влияние биопрепаратов на урожай сои в условиях инфек-ционного фона заражения почвы
2018
Şcerbacova, T. (Academy of Sciences of Moldova. Institute of Genetics, Physiology and Plant Protection, Chisinau (Republic of Moldova) | Pânzaru, B. (Academy of Sciences of Moldova. Institute of Genetics, Physiology and Plant Protection, Chisinau (Republic of Moldova)
In this paper, the results of field studies of the effect of biological preparations Gliocladin-SC and Trichodermin-BL based on Trichoderma fungi on the yield of soybeans in the soil artificially contaminated with pathogenic fungi S.sclerotiorum (Lib.) de Bary. и F.sporotrichiella Bilai are presented. Two kinds of the contaminated soils were created by introducing the inoculum of two pathogens into the furrow during the sowing of 20 g seeds per 1 m lengthwise. In the natural conditions under the influence of the biological preparation Gliocladin-SC liquid form the yield of soybeans increased by 52,0% in comparison with the control; in the soil infected with Sclerotinia – by 62,8% and in the Fusarium-contaminated soil – by 64,5%. Application of the biopreparation Trichodermin-BL dry form increased the yield of soybeans under the condition of the natural infection by 23,6%, in the soil infected with Sclerotinia – by 47,1%, and in the soil, infected with Fusarium - by 49,5%, in comparison with the control. S.sclerotiorum and F.sporotrichiella contamination reduced soybean yield in comparison with natural conditions control in 3 times and in 2 times, respectively.
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