露天蔬菜氮肥施用及硝态氮淋失状况研究

Study on the Use of Nitrogen Fertilizer and Nitrate Leaching in Vegetable Soil

菜地土壤化肥的使用不当不仅造成了肥料的浪费和蔬菜品质的下降,还对土壤、水体和大气等生态环境构成潜在威胁。本实验以泰安肥城市王庄镇孔村的菜地为研究对象,利用原状土柱系统,分析了露天蔬菜——土壤系统中氮素的输入输出情况,研究了硝态氮的淋失规律,探索了控制硝态氮淋失的重要措施,以便指导蔬菜生产。

In recent years, fertilizer not only resulted in the waste of fertilizer and reduce of vegetables quality, but also potential threat to the soil, water and atmosphere and other ecological environment. In the experiment, author using Kongcun village, Wangzhuang town, Feicheng city as research object, by undisturbed soil column system, analyzed the nitrogen input and output status in vegetable soil system, studied the rules of nitrate nitrogen leaching, and explored the control of nitrate leaching important measures, in ordet to guide the production of vegetables.