pesticidesn.杀虫剂pesticiden.杀虫剂；农药Pesticide mixed application农药混用pesticide residue tolerance农药残留容限量pesticide residue detection农残检测pesticide residual quantity农药残留量pesticide leftover detection农药残留检测Pesticide-degrading strain农药降解菌pesticide-resistant strain抗性品系pesticide-added fertilizer[化] 农药肥料pesticide application method农药使用方法pesticide spray distribution农药沉积分布