山东寿光保护地蔬菜施肥现状及问题的研究

The Study of Fertilization Condition and Question in Protectorate Vegetable in Shouguang,Shandong

对山东寿光市保护地蔬菜施肥状况的调查及产生的问题综合评价表明 :寿光市保护地蔬菜施肥用量很大 ,但极不平衡 ,化学氮肥及磷肥施用量过大造成了土壤的盐化、酸化、中微量元素的缺乏及环境的污染 ,使得蔬菜的产品品质下降 ,蔬菜NO-3 含量较高 ,产投比降低。钾肥用量太少 ,植物抗逆性差 ,病虫害严重。提出了蔬菜合理施肥的几项建议。

It is shown by investigating and comprehensive evaluating of question and fertilization condition of protectorate vegetable in Shouguang county: The content of fertilizer is higher in protectorate vegetable than in field in Shouguang, but it is very unbalance. Because of applying too large rate of chemical nitrogen and phosphorus fertilizer, such as environmental pollution, soil made vegetable quality and the input/output ratio come down, and too high content of NO - 3 in vegetables. The rate of K fertilizer is too low. Salinization, soil acidify, lack of middle and microelements. That In view of those problems, the author gives several rationalization proposals about vegetable fertilizing finally.