IMPACT OF BIOCHAR AND ANIMAL MANURE ON SOME BIOLOGICAL AND CHEMICAL PROPERTIES OF SOIL

The aim of this study was to show the relationship between tomato plants grown in soil in different doses of animal manure (AM) and biochar (BC) obtained from hazelnut shell with some soil enzymes, C mineralization, microbial biomass and other soil properties. In this context, 0-5-10-15-20 ton/ha biochar (BC) obtained from hazelnut shell and 5-10-20 ton/ha mature animal manure were applied into the soil. The study repeating 6 times was performed in natural conditions of greenhouse according to the study design of random parcels. Some chemical soil properties (organic material, total N, available P and K) and some soil enzymes of tomato (Lycopersicum esculentum Mill) plant grown in biochar and animal manure applied-soil (dehydrogenase, urease, arylsulfatase and alkaline phosphatase) were identified. Biochar and animal manure applications increased dehydrogenase, urease and arylsulfatase enzyme activities of the soil and it was statistically significant (p < 0.01). The activity of alkaline phosphatase enzyme increased but and it was not statistically significant. The biological analyses of the soil showed that the most effective dose varies in each parameter, but it was identified that BC5 + AM(5), BC15 + AM(5), BC20 and AM(20) doses increased the biological properties. The study showed that biochar and animal manure applications increased the organic material contents of soil and the available macro contents including nitrogen (N), phosphor (P) and potassium (K).