315 variants of halotolerant bacteria were isolated from soil samples taken around Starobin potash deposit mined by Belaruskali concern. Nitrogen-fixing isolate CA-6 and phosphate-solubilizing isolate Cp-1 capable to withstand abiotic stress caused by sodium chloride in concentration 1710 and 2565 mM, respectively and water deficiency characterized by osmotic potential -0.20 and -0.42 MPa were sorted out. Isolate Cp-1 may dissolve phosphates yielding halo zones 9 mm in diameter while isolate CA-6 displays nitrogenase activity 44.0 nM C2H2/vial/3 days. Both isolates are growth-promoting organisms, distinguished by the ability to synthesize IAA in concentrations 89.7 and 37.8 μg IAA/ml of cultural liquid, respectively. The selected salt-resistant isolates were identified based on analysis of the nucleotide sequence of the 16S rRNA gene and data of MALDI-TOF mass spectrometry and were referred to the species Rhodococcus jostii and Priestia megaterium. Halotolerant strains Priestia megaterium Cp-1 and Rhodococcus jostii CA-6 were deposited in Belarusian collection of non-pathogenic microorganisms under the respective registration numbers BIM B-1314D and BIM B-1353D.

Приведены результаты сравнительного исследования в опытной культуре на выработанных торфяниках верхового типа в Смолевичском р-не Минской обл. и в расположенном на 250 км севернее Докшицком р-не Витебской обл. биохимического состава плодов сортов клюквы крупноплодной (Oxycoccus makrocarpus Ait. Pers.) -раннеспелого Ben Lear и позднеспелого Stevens. При внесении минерального удобрения Basacot Plus 6 и микробного препарата МаКлоР в 5-и 10 %-ной концентрациях, а также некорневых обработок Экогум-комплексом выявлены основные тенденции О б р а з е ц ц и т и р о в а н и я:

No abstract

No abstract

Application of microbial preparations in the technologies of decorative plant cultivation promotes uptake of biological nitrogen and phosphorus, increases population of beneficial soil microflora, causing favorable effect on growth of green plantations. The studies have shown that introduction of nitrogen fixing and phosphate mobilizing bacteria into the rhizosphere of floral, deciduous and coniferous decorative shrubby arboreal species had risen the biogenic potential of rhizospheric soil, had stimulated the growth and development of ornamentals by increasing plants height and forming big healthy root system, as well as had facilitated early budding and blossoming in floral species.