山药无病留种田是全面贯彻农业“八字宪法”,实行科学种田,夺取山药高产丰收的有效方法。无病留种田除了对种薯严格挑选,做到用无病种薯播种以外,在山药生长期进行田间拔除病株是贯彻“预防为主、综合防治”措施的重要 Yam disease-free farming is to fully implement the agricultural “Character Constitution”, the implementation of scientific farming, yam to harvest high yield an effective method. Disease-free farming In addition to the strict selection of seed so as to achieve disease-free seed sowing, the field of yam during the removal of diseased plants in the field is to implement the “prevention first, the comprehensive prevention and treatment” measures important