The present study was conducted in the years 2007- 2008. after 6-year-long experiments in the cultivation of spring barley in a crop rotation system and in monoculture. The other experimental factor was the spring barley protection method. Intensive protection involved comprehensive treatment of barley (in-crop harrowing. https://eqylxwrgajz1.wikicorrespondence.com/4843722/dual_functionality_of_the_amyloid_protein_tasa_in_bacillus_physiology_and_fitness_on_the_phylloplane