Challenges and Strategies for Continuous Cropping of Morchella spp.: A Review

Continuous cropping obstacles (CCOs) have increasingly become an important phenomenon affecting morel mushroom yield and quality. In this review, we summarize the current knowledge about the driving factors behind morel mushroom continuous cropping, including the increase in soil nutrients, disorder of the soil microbial structure, aggravation of diseases, and accumulation of allelochemicals and autotoxins. Furthermore, we analyze the interrelationships among these driving factors. To mitigate these adverse effects, we propose five potential strategic approaches aimed at optimizing existing interventions. This overview not only delineates the causative agents and their intricate interactions under continuous cropping scenarios but also consolidates prospective solutions to alleviate these constraints, thereby advancing our understanding and management of morel production sustainability.