Effects of long-term tillage practices on the quality of soil under winter wheat

Anna M. Gajda, Ewa A. Czyż, Jadwiga Stanek-Tarkowska, Anthony R. Dexter, Karolina M. Furtak and Jarosław Grządziel
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Anna M. Gajda: Department of Agricultural Microbiology, Institute of Soil Science and Plant Cultivation, State Research Institute, Puławy, Poland
Ewa A. Czyż: Department of Soil Science, Environmental Chemistry and Hydrology, Faculty of Biology and Agriculture, Rzeszów University, Rzeszów, Poland
Jadwiga Stanek-Tarkowska: Department of Soil Science, Environmental Chemistry and Hydrology, Faculty of Biology and Agriculture, Rzeszów University, Rzeszów, Poland
Anthony R. Dexter: Department of Soil Science Erosion and Land Conservation, Institute of Soil Science
Karolina M. Furtak: Department of Agricultural Microbiology, Institute of Soil Science and Plant Cultivation, State Research Institute, Puławy, Poland
Jarosław Grządziel: Department of Agricultural Microbiology, Institute of Soil Science and Plant Cultivation, State Research Institute, Puławy, Poland

Plant, Soil and Environment, 2017, vol. 63, issue 5, 236-242

Abstract: These studies were done in 2013-2016 on the effects of two tillage systems on the quality of a loamy sand soil (Eutric Fluvisol) and were based on a field experiment started in 2002. Winter wheat was grown in conventional tillage (CT) with mouldboard ploughing (inversion) tillage; and reduced (non-inversion) tillage (RT) based on soil crushing-loosening equipment and a rigid-tine cultivator. Chopped wheat straw was used as mulch in both treatments. The physical, chemical and biological properties of the soil were investigated. RT increased soil bulk density in the 0-5 cm and 5-10 cm depth layers in comparison with CT. The greatest content of soil organic carbon (SOC) was found in the 0-5 cm layer under RT. The BIOLOG EcoPlate System showed that soil under RT had a greater metabolic activity and diversity of microbial communities than soil under CT. RT improved the quality of the surface soil as shown by the greater content of SOC and microbial activity measured in terms of dehydrogenases. However, the mean yields of winter wheat under RT and CT were similar. This suggests that the effects of increased bulk density (BD) on yield can be compensated by the effects of the improved microbial status.

Keywords: soil quality; cultivation; microorganisms; microbial diversity; Triticum aestivum L (search for similar items in EconPapers)
Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpse:v:63:y:2017:i:5:id:223-2017-pse

DOI: 10.17221/223/2017-PSE

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