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硝酸铵是一种含氮量高、肥效好的化学肥料。但是,叶菜类蔬菜施用硝酸铵会使蔬菜中硝酸盐含量成倍增加。含氮高的蔬菜,易引起人体血红蛋白
Ammonium nitrate is a chemical fertilizer with high nitrogen content and good fertilizer effect. However, the application of ammonium nitrate to leafy vegetables doubled the nitrate content in vegetables. High nitrogen vegetables, easy to cause human hemoglobin