花生连作减产是生产者和研究者公认的事实。但不同连作年限的减产幅度,多为田间调查数据[1]、[2],缺少严格的试验数据。要解决连作障碍,必须首先了解连作障碍的表现及程度,方能对症下药。本研究采用同一地块土壤,多年连续进行,既有当年新取土,又有不同年限连作土,探讨了不同连作年限对花生生育的影响,阐明了花生连作所出现的主要症状,为解除连作障碍提供量的依据。 Peanut crop production reduction is a fact recognized by producers and researchers. However, the rate of decrease in different continuous cropping years is mostly field survey data [1] and [2], which lacks rigorous experimental data. To solve the continuous operation obstacles, we must first understand the performance and extent of continuous operation obstacles, can only prescribe the right remedy. In this study, soil from the same plots was continuously cultivated for many years. Both new soil and successive years were used to study the effects of different continuous cropping years on peanut growth. The main symptoms of peanut continuous cropping were elucidated. Obstacles to provide the basis.