PRODUCTIVITY OF AGROCENOSIS WITH REGULAR APPLICATION OF STRAW AND GREEN MANURE IN THE TOMSK REGION

For 4 rotations (2001-2021) of grain-fallow crop rotation, the efficiency of green-manured fallow upon the straw increased compared to the complete fallow variant: in the 1st rotation, the yield under these conditions was at the same level, in the 2nd - the yield after green-manured fallow was higher by 11.7% than after complete fallow, in the 3rd rotation - correspondingly higher by 18% and in the 4th rotation green-manured fallow was better by 36.5%. In complete fallow, the humus content decreased by 9.6%. Green manure fallow + straw ensured the preservation of humus.