间套混种控病增产机制研究进展

间套混种是一种能够提高农田生物多样性的种植方式,具有充分利用资源和大幅度增加产量的特点,也是利用种间互作控制病害发生的传统农作措施。间套混种在解决人口不断增长、资源日益枯竭和生态环境恶化等问题方面具有重要的现实意义,已经成为近年来国内外研究的热点。间套混作在一起的作物具有非常复杂的相互作用关系,这种相互作用关系涉及地上部(冠层)的相互作用和地下部(根际)的相互作用,作物对水分、养分和光热等资源的高效利用、复合群体产量优势和病害持续控制都是与种间相互作用相联系的。本文综述了间套混种系统中地上部因素和地下部因素在作物病害控制和产量优势中的作用效果及机制,并展望了当前研究重点及今后需要研究的方向。

Research Progress on Mechanism of Diseases Controlling and Yield Advantage in Multiple Cropping Systems

Intercropping,mixtures and rely intercropping are multiple cropping systems,which enhances the plant diversity of agricultural ecosystem and often significantly enhance crop productivity compared to monocropping through more effective use of water,nutrients and solar energy.Multiple cropping is also a convenient method for diseases management by interspecific interactions in crop production,as opposed to single crops which more often require chemical control.Multiple cropping plays an important role in solving contradictions between ever increasing population and deteriorate ecological environment due to shortage of resources and has become one of the highlights in agro-scientific research in the world.Complicated interaction relationship had been found in mixed crops and aboveground(canopy) and belowground(rhizosphere) interactions was involved in multiple cropping systems,resources effective utilization including water,light,heat,nutrients,compound yield and diseases sustainable controlling were related to interspecific interactions.This paper reviewed the effectiveness and mechanisms of above-and belowground interactions on diseases controlling and yield advantage.The future research focus,fields and directions needed to be further studied in multiple planting systems were also discussed.