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Boyka Malchevа

2 linked publication records · University of Forestry

Author: Boyka MalchevаYear: 2023clear all
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SGEM International Multidisciplinary Scientific GeoConference- EXPO Proceedings; 23rd International Multidisciplinary Scientific GeoConference Proceedings SGEM 2023, Energy and Clean Technologies, Vol 23, Issue 4.2
Publication

COMPOSTING OF BIODEGRADABLE PLASTIC WASTE - CHANGES IN THE MICROBIAL COMMUNITY

(STEF92 Technology, 2023-12-15, Bilyana Grigorova-Pesheva, Boyka Malchevа)

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The present study aimed to track the changes in microbial communities during home composting of biodegradable plastic products (PLA). 6 waste mixtures and controls were prepared, with C:N about 30, placed in containers. The amount of PLA compared to the compostable mixture is 1%. Different depositing methods were used - active composting and placing part of the material in biodegradable bags. Temperature, humidity, pH, C:N ratio were measured. The amounts of bacteria, actinomycetes, micromycetes were recorded duri...

Recycling2023
SGEM International Multidisciplinary Scientific GeoConference- EXPO Proceedings; 23rd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2023, Nano, Bio, Green and Space: Technologies for a Sustainable Future, Vol. 23, Issue 6.2
Publication

EFFECT OF CABBAGE INTERCROPPING ON SOIL MICROBIAL AND ENZYME ACTIVITIES

(STEF92 Technology, 2023-12-15, Gergana Mladenova, Boyka Malchevа, Milena Yordanova)

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Intercropping increases biodiversity in vegetable fields. It affects both above-ground and soil communities. The aim of the research was to study and analyze the soil microbiological and enzymatic activity in intercropping of cabbage with leek, green bean, tagetes, flower mix, and dill. The studies were carried out in two directions: 1) of microflora, as a sensitive indicator of the microbiological status of soils; 2) enzyme research, such as functional characterization and expression of microbial activity. Soil b...

Advances in Biotechnology2023
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