Effect of Keratin Hydrolysates Obtained from Feather Decomposition by Trichophyton ajelloi on Plant Germination, Growth and Biological Activity of Selected Arable Soils under Model Conditions

The use of fertilizers based on organic waste as a result microbial biodegradation and biotransformation is becoming increasingly common practice in plant cultivation. This to limit the chemicals used agriculture thus protect environment consumer health. aim this study was evaluate hitherto unexplored effect hydrolysates obtained after chicken feather by soil strain keratinolytic fungus Trichophyton ajelloi germination, early growth, development plants, particular with high sulfur requirements, verify, model conditions, their impact biological activity total pool DNA. Undiluted diluted keratin hydrolysate generally stimulated seed germination well root shoot growth Lepidium sativum L. (garden cress) Brassica napus var. (oilseed rape) sandy (Cambisol I), loamy II), Chernozem. In experiment, variants without oilseed rape Chernozem, introduction increased abundance microorganisms. soil, mostly respiratory activity, dehydrogenase alkaline phosphatase an average approx. 38% DNA 15% 23% variant plants. protease acid 4% 6% only rape. Respiratory enzymatic rape, tended show downward trend, despite periodically recorded increases. has 8% variant. Oilseed biomass almost two-fold higher adding both soils, its yield 98% Chernozem than soil. results have demonstrated that can be biofertilizer.