CELLULOSELYTIC ACTIVITY OF ARABLE ORDINARY CHERNOZEM IN FOREST-STEPPEZONE OF THE ISHIM PLAIN

The process of cellulose destruction runs differently under different crops in ordinary chernozem. II depends on the moisture and nitrate ni trogen content. Microorganisms affect significantly the yield when the loss of linen tissue exceeds 40% during a 90-day exposure. In this ca se, those preceding crops become important that leave a large amount o f post-harvest residue in the soil.