Preparatanvändning och ogräsförekomst på gårdar med olika jordbearbetningsstrategier
Reduced tillage has increased in Sweden during several years, primarily to decrease costs andincrease efficiency in crop production. Despite this, mouldboard ploughing is still the mostcommon primary tillage method on most farms. The aim with this thesis was to compare theuse of pesticides and the occurrence of weeds on ten farms in Skåne and ten farms inMälardalen that use different soil tillage systems. The object of the study was also to clarifywhy the farms had chosen their specific soil tillage system and the consequences it has had onweed occurrence and use of pesticides. The result showed a slightly higher use of pesticideson the farms that use reduced tillage. According to the farmers interviewed in Skåne,occurrence of weed was considered higher in reduced tillage, while the result in Mälardalenwas the opposite. More weed species were considered hard to control in Skåne as well as inMälardalen on the farms that used reduced tillage.