某些肥料对作物病虫害有一定的防治作用,研究和实践证明,利用化肥或有机肥防治农作物病虫害,不仅经济、安全、有效,可以节省农药,同时又具有施肥作用和不伤害天敌、不污染环境等特点,可谓一举多得。 Some fertilizers have some preventive and curative effects on crop diseases and insect pests. Research and practice have proved that the use of chemical fertilizers or organic fertilizers to control pests and diseases of crops is not only economical, safe and effective, but also can save pesticides, at the same time, has fertilizing effect and does not harm natural enemies and does not pollute the environment And so on, can serve multiple purposes.