%0 Journal Article %T Effects of hazelnut produced wastes on physico-chemical and biological properties of soil %A Ceyhan TARAK£¿IO£¿LU %A Damla BENDER £¿ZEN£¿ %A Funda IRMAK YILMAZ %A Selahattin AYG¨¹N %J - %D 2019 %X In this study, hazelnut husk and the biochar produced from the hazelnut shell was mixed into the soil at different doses (0-3-6 t da-1) and left to incubation (1-2-3-4 months) and then effects on the physical, biological and chemical properties of the soil were investigated. The experiment was carried out in greenhouse conditions according to the randomized plot design as 3 replications. As the application dose of the materials to soil increased, all properties examined (excluding bulk density) increased. The effect of the incubation period was changed according to the characteristics; saturation percentage, aeration capacity, hydraulic conductivity, electrical conductivity values were 4-monthly, easily available water content and aggregate stability were the highest in 3-monthly incubation time at hazelnut husk applications. The amount of soil organic matter and the total N content decreased depending on the prolongation of the incubation time; available phosphorus content 3-monthly, extractable potassium 2-monthly, iron, copper, manganese and zinc contents were highest in the 1-month incubation time. Biochar applications were effective on biological properties of soil (except ¦Â-glucosidase enzyme activity); CO2 value was 1-monthly, microbial biomass-C value was 2- monthly and aryl sulfatase enzyme activity was found to be highest in 3-monthly incubation time. When all the data were evaluated, it was determined that the examined materials improved the soil properties and 3 ton da-1 application would be sufficient. In addition, it is thought that the short term effect of hazelnut zuruf is higher and the effects of biochar on the longer term should be examined %K Zuruf %K Biyok£¿m¨¹r %K Toprak £¿zellikleri %K Besin elementi %U http://dergipark.org.tr/mediterranean/issue/45345/558856