Effects of Manure Fertilizer and Chemical Fertilizer on Nitrogen Transformation Bacteria and Soil Enzyme in Black Soil

Various trends of soil function bacteria and its activity was Analyzed under different ratios of the manure and chemical fertilizers,in on the black soil field under maize.The results showed that the high manure fertilizer ratio scenario leads to an increase in ammonification bacteria and nitrobacteria,which were 2.22 times and 4.09 times of standard sample(CK) respectively.Meanwhile,the high chemical fertilizer ratio also contributed to a significant raise in the amount of denitrifying bacteria,which was 8.49 times of CK.Furthermore,Manure fertilizer scenario had a positive influence on soil microbial biomass carbon,nitrogen,soil urease and catalase as the analyzed data of activities of these factors were much higher than that of CK.Specifically speaking,the positive correlations existed in the following groups: soil microbial biomass C and soil urease activity,microbial biomass N and catalyse activity and microbial biomass and soil ammonification bacteria as well.At the same time,soil microbial biomass C and soil ammonification bacteria had significant negative correlation ship.