Sammanfattning

Reduced erosion and runoff after adoption of no-till are widely observed and are of particular importance in southwestern Europe. No-till reduces losses of phosphorus in runoff and, in some cases, reduces the loss of nitrate through leaching. Emissions of greenhouse gases CO2 and N2O from no-till soils are highly variable and depend on complex interactions of soil properties. Emission of CO2 from fuel during machinery usage is always appreciably reduced with no-till. Increased soil organic carbon in surface layers of no-till soils is widely found but may not be associated with increased carbon sequestration throughout the profile. The evaluation of the relative carbon balance for no-till and ploughing depends upon complex inter-relationships between soil and climate factors which are as yet poorly understood. Adoption of no-till could be encouraged by government financial assistance in recognition of environmental benefits, although future restrictions on the use of herbicides may be a deterrent. Opportunities for further research on no-till are outlined. (C) 2011 Elsevier B.V. All rights reserved.

Nyckelord

No-till; Direct drilling; Zero tillage; Ploughing; Northern Europe; Western/South-western Europe

Publicerad i

Soil and Tillage Research
2012, Volym: 118, sidor: 66-87
Utgivare: ELSEVIER SCIENCE BV

SLU författare

• Arvidsson, Johan

  • Institutionen för mark och miljö, Sveriges lantbruksuniversitet
    

UKÄ forskningsämne

Jordbruksvetenskap


Publikationens identifierare

DOI: https://doi.org/10.1016/j.still.2011.10.015

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/43765