Studies were conducted in the period 2009-2011 in the experimental field of the Institute of Land Reclamation and Agricultural Mechanization – Sofia. The following treatments were used: a1 no herbicides with weeds (C0); a2 herbicide oxyfluorfen (Goal 2 E) at a rate of 250 ml / da; a3 herbicide oxyfluorfen (Goal 2 E) at a rate of 500 ml / da. The experiment was set up using long plots, three ver...

Objective. To investigate the effect of seed treatment cultivated plants with complex bacterial preparation Azogran (based on Bacillus subtilis IMB B-7023 and Azotobacter vinelandii B-7076) initial stages ontogenesis under laboratory conditions. Methods. Microbiological (cultivation microorganisms was carried out periodic culture conditions — A. B-7076 in Ashby liquid digest medium, a mineral m...

The objectives of the present work give results view some physicochemical, chemical and biological-chemical methods for heavy metals removal from Acid Mine Drainage (AMD). background studied physicochemical was adsorption by turf, precipitation neutralization with NaOH. principles were bioprecipitation applications sulphate-reducing bacteria (SRB), sorption bacterially produced iron sulphides b...

The directed search for extremophilic producers in order to obtain hydrolytic enzymes with increased thermal stability has an unconditional practical potential use the food and feed industry improve quality of final product. aim work was study ability collection strains thermophilic fungi show α-L-rhamnosidase, α-galactosidase, cellulase, β-mannanase, keratinase caseinolytic activity. Methods. ...

The number phytopathogenic micromycetes is determined in the seeds of such cultivated varieties cultural plant as soybeans, sunflowers, yellow mustard, buckwheat and thistle, which are grown by organic technology. It shown that differs significantly ranges from 0.2 to 1.3 thousand NCO/g seeds. depends on properties plants variety hybrid, characterized some certain set physiological biochemical ...