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Bulgarian Journal of Soil Science, Agrochemistry and Ecology
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Changes in the biological and agrochemical properties of soil and mineral composition of oriental tobacco depending on the fertilization with industrial microbiological product - Micotric L
Radka Bozhinova, Tsveta Hristeva
Abstract: The effects of the microbial fertilizer Micotric L (containing arbuscular mycorrhizal fungi of the genus Glomus and soil microscopic fungi of the genus Trichoderma) on the biological and agrochemical properties of soil and mineral composition of oriental tobacco have been studied in field experiment set on Rendzic Leptosol. The results demonstrate positive changes at the microflora in rendzina soil, respectively its biological properties, under influence of microbial fertilizer Micotric L. Application of Micotric L resulted in an available K increase in the soil. The soil mineral nitrogen and available P2O5 content were enhanced during certain stages of vegetation by fertilization with Micotric. The concentration of nitrogen in the tobacco leaves was positively affected by the application of microbial fertilizer. Micotric L application significantly increased P concentration in the upper leaves. The N concentration in roots and K content in stems was significantly higher by Micotric addition. Tobacco yield was increased by 4.0% to10.1% when Micotric L was used. Finally, microbial fertilizer Micotric L can be reported to have positive effects on soil, oriental tobacco plants and therefore environment
Keywords: agrochemical properties; microbial fertilizer; mineral composition; soil microbiota; tobacco
Date published: 2018-12-03
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