一思以药代肥。植物生长调节剂是生物体内的调节物质，不能替代肥水及其它农业措施。即使是促进型的调节剂，也必须有充足的肥水条件才能发挥作用。尽管现在的调节剂加了一些浓缩的氮、磷。钾和微量元素，但含量少，作用不大。二忌改变浓度。作物对调节剂的使用浓度要求比较严 Think of medicine as a fertilizer. Plant growth regulators are regulated substances in the body, can not replace fertilizer and other agricultural measures. Even a facilitator must have adequate fertilizer and water conditions to work. Despite the current regulator plus some concentrated nitrogen, phosphorus. Potassium and trace elements, but less content, little effect. Second, avoid changing the concentration. The use of crop regulators concentration requirements more stringent