几种蔬菜种子的有效期限蔬菜种子的新旧，对于蔬菜长得好坏有着密切的关系。有的蔬菜必须种新仔，有的则是以陈籽为好。白菜籽：可以保存２年。当年收获的种子，可以当年播种，贮存２年以上的种子，播种后出苗率一般要降低２０％～３０％，抗病力差。贮存时间越长，则出苗... The validity of several kinds of vegetable seeds The old and the new of vegetable seeds, vegetables have good or bad is closely related. Some vegetables must grow new Aberdeen, while others are based on Chen Seeds as well. Cabbage: can be preserved for 2 years. Seeds harvested the same year, the year can be planted, stored more than 2 years of seeds, germination rate after planting generally reduce 20% to 30%, poor disease resistance. The longer storage time, the emergence ...