杨凌示范区日光温室蔬菜施肥现状及存在问题对策

Fertilization Situation Analyses and Question Countermeasure of Vegetable in Sunlight Greenhouse of Yangling Demonstration Zone

通过实地调查,分析了杨凌示范区日光温室蔬菜西红柿、黄瓜、豇豆、西葫芦、辣椒、草莓、芹菜、百合和香瓜等目前的施肥现状及存在问题。通过对124户种植户生产状况分析发现日光温室蔬菜施肥中,磷肥施用量多,钾肥施用少,氮磷钾施用比例失调。蔬菜追肥中磷肥多,氮肥少。提出了无公害蔬菜生产的施肥技术改进措施。

The locality vegetable fertilization investigations has done in sunlight greenhouse of Yan-gling demonstration zone,the vegetable include cucumber, bean,pumpkin,pepper,strawberry,celery, lily and melon. The results from 124 farmers showed that the phosphorus fertilizer rate was too more in cucumber and potato, potassium fertilizer rate was not sufficient, the fertilizer ratio of N: P2O5: K2O was not balance. For the vegetable growth better and high quality, it was increase K fertilizer rate and decrease P fertilizer rate. At the vegetable growth period it was better to use N and K fertilizer , not use P fertilizer.