我国已是世界上最大的化肥生产国。尽管耕地面积还不到全世界总量的10%,但我国的化肥施用量却接近世界总量的百分之三十多,使用量居全球第四,但过量使用化肥给我国造成了很大的危害,就这一现状,为了使生态农业更好的发展,笔者提出一些对策。一、化肥过量使用造成的危害1、粮食和农产品安全受到威胁过量使用化肥极易使庄稼倒伏,而一旦出现倒伏,就必然导致粮食减产,威胁中国的粮食安全;过量使用化肥还容易发生病虫害。使用过量的氮肥,会使庄稼抗病虫害能力减弱,易遭病虫的侵染,继而会增加防虫害的农药用量,直接威胁食品的安全性。一旦食用受污染的农产品,引发中毒及诱发其他病症就会对人类身体造成严重威胁。2、导致农产品质量下降由于农田大量施用单元素化肥,其养分不能被作物有 China is already the largest fertilizer producer in the world. Although the area of ​​cultivated land is less than 10% of the world’s total, the amount of chemical fertilizers applied in China is close to 30% of the world’s total and its consumption is the fourth largest in the world. However, excessive use of chemical fertilizers has caused a great deal to our country Of the harm, on the status quo, in order to make ecological agriculture better development, the author put forward some countermeasures. First, the harm caused by excessive use of fertilizers 1, the safety of food and agricultural products threatened Excessive use of chemical fertilizers easily lodging crops, and once lodging, it will inevitably lead to food production cuts, threatening China’s food security; excessive use of fertilizers are also prone to pests and diseases. Excessive use of nitrogenous fertilizers will weaken the ability of crops to resist pests and diseases and will be easily infested with pests and diseases, which in turn will increase the amount of pest-insensitive pesticides and directly threaten the safety of foodstuffs. Once contaminated agricultural products are consumed, poisoning and other illnesses may cause serious threats to the human body. 2, leading to decline in the quality of agricultural products As a large number of farmland fertilizer application of a single element, its nutrients can not be crops