Management of permanent set-aside on arable land in Sweden

摘要: 1. Set-aside fields have been an important element of the European agricultural landscape since introduction set-aside scheme by Community. However, countries in Community differ their rules for managing owing to different priorities. 2. In Sweden, a major goal is reduce total use pesticides, consequently prohibited set-aside. The options weed control are therefore cutting and/or cover crop. 3. this study, we describe course succession following abandonment farmland managed ways. floristic composition was followed over 10-year period. Temporal trends community development described. 4. experiment began 1975 on at six localities, distributed from southern northern Sweden. management treatments involving application fertilizers and were applied plots sown with crop which started bare ground. 5. We found that competitive interactions between species largely determined successional our study. success related practices but there also site conditions. 6. propose natural can be recommended poor sites combination cutting, mainly prevent invasion woody species. On fertile should used suppress perennial weeds, increase diversity.