设施农业作物连作障碍与对策措施研究

Effect of Continuous Cropping Obstacle and Technical Measures in Protected Agriculture

连作障碍一直是制约设施农业高质量发展的突出问题之一。该文概述了连作障碍对设施农业作物的影响,从土壤酸化或次生盐渍化、土壤养分失衡、自毒物质与化感作用、土壤微生物区系劣变等方面分析了连作障碍的影响因素,并提出了选择抗病品种或嫁接、改良土壤、改善种植制度、微生物调节等对策措施。

The continuous cropping obstacle was one of the outstanding problems which restricted the high quality development of protected agriculture. The effects of continuous cropping obstacles on protected agricultural crops were summarized,and the influencing factors of continuous cropping obstacles were analyzed from the aspects of soil acidification or secondary salinization,soil nutrient imbalance,autotoxic substances and allelopathy,soil microbial flora deterioration,etc. Some countermeasures were put forward,such as selecting resistant varieties or grafting,improving soil,improving planting system and microbial regulation.