Effects of in-situ returning of cucumber straw with different microbial in-ocula on soil physicochemical properties,cucumber growth and yield
Field experiments were conducted to investigate the effects of not returning cucumber straw to the field,returning straw without microbial inoculum(straw)and the use of two different fungal agents on the physicochemical properties of cucumber soil,plant growth,and yield in a multi-span film greenhouse.Microbial inoculum 1 consisted of Bacillus subtilis,Bacillus cereus,Aspergillus niger,and Trichoderma orientalis,while microbial inoculum 2 comprised Bacillus jelly,Pseu-domonas swamp,Bacillus subtilis,Bacillus licheniformis,and pythium oligadrum composite water agent.The results showed that compared to the control group(cucumber straw not returned to the field and no microbial inoculum added),all treatments led to an increase in soil available nutrient content,soil enzyme activity,and cucumber yield.The yield increased by 19.00％with microbial inoculum 2 treatment and by 18.66％with straw treatment.Although the yield with microbial inoculum 1 treatment was slightly higher,there was no significant difference compared to the control.There-fore,the improvement effect of cucumber straw returning followed the order:microbial inoculum 2＞Straw＞microbial inoculum 1＞Control(CK).In conclusion,the use of cucumber straw waste resources is feasible,which can enhance soil organic matter and available nutrients content,improve soil enzyme activity,optimize the growth environment for cucum-ber roots,ultimately leading to increased cucumber yield.
万方数据
维普
