我国设施栽培连作障碍特征与成因及防治措施的研究进展

连作是目前我国设施农业的主要栽培方式,连作障碍是土壤修复的世界性难题。本文系统阐述了国内设施栽培出现的连作障碍特征(如酸化、盐渍化、养分失衡、重金属及其他有害物质积累、土传病害发生严重)与成因,并分别从农艺、生物、化学、物理4个方面简述了各种防治技术在缓解设施连作障碍过程中的作用效果。最后总结了设施连作障碍及防治技术研究中尚待解决的科学问题及研究方向,以为我国设施连作障碍的发生发展机理研究和防治技术提供科学依据。

Study Advances on Characteristics, Causes and Control Measures of Continuous Cropping Obstacles of Facility Cultivation in China

In recent years, China''s facility cultivation area has expanded rapidly, and has become the first major country of facility agriculture in the world. However, due to its high degree of soil dependence, serious continuous cropping, and backward operation technology, the continuous cropping obstacles have become widespread, which has become a bottleneck restricting the sustainable development of modern facility agriculture in china. Better understanding the characteristics and causes of continuous cropping obstacles during facility cultivation, and then adopting appropriate control measures are of great significance to alleviate the continuous cropping obstacles and promote the healthy development of facility agriculture. This paper systematically expounds the characteristics of continuous cropping obstacles (such as acidification, secondary salinization, nutrient imbalance, accumulation of heavy metals and other harmful substances, serious soil-borne diseases) in facility cultivation in China. The roles of regulation techniques in mitigating barriers to continuous planting were briefly described from four aspects: agronomical, biological, chemical and physical. Based on these studies, the existing scientific problems and future research required in continuous cropping obstacles and regulation technology in facilities cultivation have been summarized, aiming to provide scientific basis for the study of the regulation mechanism of the continuous cropping obstacles in China.