山东省邹城市是鲁西南农业强市 ,其中蔬菜生产占着重要地位 ,长年蔬菜种植面积都在６０００公顷以上。随着老菜区的增多 ,蔬菜病虫害的发生日趋严重 ,导致蔬菜品质差、产量低、农药污染重。为解决以上矛盾 ,克服连作障碍 ,我市１９９９年从中国农科院蔬菜花卉研究所引进有机生? Zoucheng City, Shandong Province is a strong agricultural southwest of Shandong Province, of which vegetable production occupies an important position for many years vegetable planting area in more than 6000 hectares. With the increase of old vegetable area, the occurrence of vegetable pests and diseases becomes more and more serious, resulting in poor quality of vegetables, low yield and heavy pollution of pesticides. In order to solve the above contradictions, to overcome obstacles to continuous cropping, the city in 1999 from the Chinese Academy of Agricultural Sciences Institute of vegetable flowers to introduce organic students?