Soil biological activity as affected by tillage intensity

• Autorzy: Gajda A. M. , Przewloka B.
• Języki publikacji: EN

Abstrakty

EN

The effect of tillage intensity on changes of microbiological activity and content of particulate organic matter in soil under winter wheat duirng 3 years was studied. Microbial response related to the tillage-induced changes in soil determined on the content of biomass C and N, the rate of CO2 evolution, B/F ratio, the activity of dehydrogenases, acid and alkaline phosphatases, soil C/N ratio and microbial biomass C/N ratio confirmed the high sensitivity of soil microbial populations to the tillage system applied. After three year studies, the direct sowing system enhanced the increase of labile fraction of organic matter content in soil. There were no significant changes in the labile fraction quantity observed in soil under conventional tillage. Similar response related to the tillage intensity was observed in particulate organic matter quantities expressed as a percentage of total organic matter in soil. A high correlation coefficients calculated between contents of soil microbial biomass C and N, particulate organic matter and potentiallymineralizable N, and the obtained yields of winter wheat grown on experimental fields indicated on a high importance of biological quality of status of soil for agricultural crop production.

Słowa kluczowe

EN

soil; biological activity; tillage intensity; soil tillage system; microbial biomass; organic carbon; dehydrogenase activity; organic matter; physical condition; chemical condition; nitrogen mineralization

• Wydawca: -
• Czasopismo: International Agrophysics
• Rocznik: 2012
• Tom: 26
• Numer: 1
• Opis fizyczny: p.15-23,fig.,ref.

Twórcy

autor

Gajda A. M.

• Institute of Soil Science and Plant Cultivation - National Research Institute, Czartoryskich 8, 24-100 Pulawy, Poland

autor

Przewloka B.

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