【摘要】 自毒作用是连作障碍的发生机制之一,该作用主要是由有机酸、醛类芳香酸、香豆素、醌类、生物碱和类萜等植物次生代谢产物及其分解产物所引起的。其作用机理包括增加细胞膜膜通透性、降低酶活性、抑制植物的养分吸收等。相应的矫治措施主要有合理施肥、施用微生物制剂、嫁接、轮作和间套作等。本文综述了自毒作用在连作障碍中的作用机制以及相应的矫治措施。更多还原

【Abstract】 The autotoxicity is one of the mechanisms and obstacle effects occurred from continuous cropping.It is mainly caused by some secondary metabolites and/or decomposition products of those metabolites,such as aromatic acids,aldehyde,coumarin,quinines,alkaloids and terpenoids in plant.The acting mechanisms of the autotoxicity mainly include the increase of cell membrane permeability,or decrease of the activities of enzymes and inhibition of nutrient absorption for plants.Therefore,the resent studied in the field was reviewed and discussed.更多还原