Study on soil enzyme activities effected by fertilizing cultivation

WT5”BZ]The soil enzyme activities and organic matter content were assayed in long term fertilizing soil samples, the results showed as follows:Soil enzyme activity remarkably varied with the fertilizers, especially soil urease. The peroxidase was less and soil urease activity could be as an index of fertility; Plant could enhance hydrolase activity; the maize and chemical fertilizer might improve total enzymatic activity level. The enzyme activities were increased except non fertilizing treatment The main factors with the most influence were urease and uratease activities by The Principal Component Analysis of soil enzymes [WT5”HZ]