Effect of leonardite usage on soil quality criteria

The aim of this study was to investigate the effect of leonardite usage on some soil quality parameters in the field of Çekok Group in Alaşehir District of Manisa Province.Leonardite used in the research; It has a pH of 6-7, organic matter 42%, humic + fulvic acid content 40% and moisture content 30%. The research was carried out for 1 year. The randomized parcels were mixed with 3 replications, 5 doses (0 -50 -100 -200 -400 kg / da) according to the experimental design and mixed with leonardite into the soil in a volume of 23.6 x 23.6 x 35.5 cm3 and allowed to incubate for 1 year in 15 parcels.In the study; soil reaction (pH), salt (T), lime (% CaCO3), nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), iron (Fe), copper (Cu) ), zinc (Zn), manganese (Mn), organic matter (OM), volume weight (HA), specific gravity (PM), water holding capacity (STK), cation exchange capacity (KDK), aggregate stability (AS), hydraulic permeability (HP) and porosity (Pr) were analyzed.The values determined after the application were evaluated by analysis of variance and the differences between the applications were grouped with 1% precision by LSD test.In the study, pH decreased numerically in parallel with the increase in application dose, but it was found statistically insignificant. The effect of leonardite on all other parameters was statistically significant. All the lime results except control were in the same group but a numerical increase due to dose increase was obtained. In other parameters, regular increases parallel to the dose increase were determined and the results formed different statistical groups.As a result, pH values were alkaline in all applications, salinity was in the class of light saline, Lime levelwas low, organic matter values were low and very low, nitrogen was low and very low, phosphorus was very low, potassium was very high, calcium was low, magnesium was high and very high, iron, zinc and manganese was found to be sufficient.Keywords: Leonardite, Permeability, CEC, Volume Weight, Soil Physical Properties.