Comparison of soil characteristics related to C and N processes in Eastern Hungarian and Central Japanese soils under different land use and nutrient supply

This comparative investigation aimed to evaluate controlling factors for the changes of chemical and microbial properties in soils taken from fertilizer experiments carried out mainly Chernozem Andosol Hungary Japan, respectively. The plant available nutrient content soil, stock C N soil parameters carbon nitrogen cycles were examined under different land-use vegetation. In Japanese soils, there was about 2–3 times higher organic than Hungarian soils. average CO2-production 1.5 significantly increased (9–37%) fertilized treatments compared control all long-term experiments. Regarding NPK-fertilization especially nitrate phosphorus among CO2-production, MBC, MBN, net nitrification, saccharase urease activities – most cases six parameters. With reference fertilization had highest effect on microbiological forest where significantly. Only nitrification Numata experiments, generally 10–100 values found ones. activity decreased according land use following order: maize>forest>grassland forest>grassland>apple orchards These results confirm that climate conditions human have important impacts soil–plant–atmosphere system. Based our results, it appears resulted a larger change matter processes