近几年,我市郊区蔬菜地施用化肥量(主要是氮肥)不断增加,有机肥施用量相对减少,致使土壤内氮、磷、钾养分比例不同程度的失调。蔬菜长势较差,抗病性能降低,产量、品质下降,尤其是黄瓜、番茄等果菜类蔬菜的可溶性糖含量降低,食味欠佳。为了解决 In recent years, the amount of chemical fertilizers (mainly nitrogenous fertilizers) in suburban areas of our city has been increasing, and the application of organic fertilizers has been relatively reduced, resulting in the imbalance of nitrogen, phosphorus and potassium in soil to varying degrees. Poor growing vegetables, disease resistance, yield, quality decline, especially cucumbers, tomatoes and other fruits and vegetables reduce the soluble sugar content of vegetables, poor food. In order to solve