Open AccessInfluence of microbial preparations on the state of plants and microbial cenosis of the rhizosphere of Tulipa L.
Author(s) -
N.N. Klimenko,
О. Е. Клименко,
L.M. Aleksandrova
Publication year - 2020
Language(s) - English
Resource type - Conference proceedings
DOI - 10.33952/2542-0720-15.05.2020.13
Subject(s) - rhizosphere , bacteria , horticulture , botany , chemistry , biology , food science , genetics
Our research has shown that the greatest influence on the height of Tulipa L. plants of the ‘Anna Krasavitsa’ (‘AK’) and ‘Blushing Lady’ (‘BL’) varieties had Aurill and Complex of Microbial Preparations (CMP). The tulip plant height increased by 3-8 % compared to control. The height of the flower glass of ‘AK’ and ‘Holland Chic’ (‘HC’) varieties also increased by 6-7 % compared to control when using microbial preparations (MP). The width of the glass also increased by 4-9 % compared to control. The length of the lower leaf increased by 3-7 % compared to control under the action of Aurill and CMP, respectively. The width of the lower leaf of ‘HC’ increased by 3 % under the action of Aurill compared to the control variant. Depending on the variety and the preparation, the number of ammonifying bacteria increased by 57 % relative to control. The number of amylolytic and phosphate mobilizing bacteria increased on average by 76 % and 63 % under the influence of CMP. The number of oligonitrophilic and oligotrophic bacteria, when using CMP, significantly exceeded the control values: on average, by 60 and 74 %, respectively. The number of micromycetes under the influence of Aurill decreased by 49 % compared to control. The number of cellulolytic bacteria increased by 78 % compared to control mainly because of the introduction of CMP into the tulips rhizosphere. Thus, we found that the bacterization of the rhizosphere of tulips with Aurill and CMP positively affected the morphological characteristics of this flower. Furthermore, these preparations contributed to an increase in the number of agronomically valuable bacteria in the rhizosphere of plants.