不同微生物菌剂对设施连作黄瓜生长和产量及品质的影响OA

To enhance the growth,yield and quality of continuous cropping cucumber plants,alleviate the continuous cropping obstacles of cucumbers and promote the healthy development of facility agriculture,Deler 12 was used as the test material to study the effects of three microbial agents,namely the disease-preventing and growth-promoting compound microbial agent,Qiaolong growth-promoting microbial agent and Minyingyidefeng microbial agent,on the growth,quality and yield of continuous cropping cucumbers.Results showed that all 3 microbial agents could promote the growth of cucumber plants,increase yield and quality.Among them,the disease-preventing and growth-promoting compound microbial agent had the best effect.The seedling vigor index,total root length,to-tal root area,total root volume and root-shoot ratio were increased by 12.5%,46.99%,81.41%,63.24%and 22.22%,respectively com-pared with the water control.The water content,vitamin C,soluble sugar and soluble solids of the fruit were increased by 0.24%,13.42%,7.37%and 7.19%,respectively compared with the control.The control effects on cucumber fusarium wilt,downy mildew and powdery mildew were 82.37%,32.01%and 28.87%,respectively.The highest economic yield was 189 565.80 kg/ha,representing a 12.50%increase compared with the water control.In conclusion,all 3 microbial agents could promote the growth of cucumbers and in-creased fruit water content,vitamin C content,soluble sugar content,soluble solid content,and economic yield,with the disease-pre-venting and growth-promoting compound microbial agent showing the best performance which could be preferentially considered for application in production practice.