蚯蚓粪与脱硫石膏配施对设施黄瓜连作障碍的效应研究OA北大核心CSTPCD

This paper were studied to explore the effects of different soil amendments on continuous cropping barriers of cucumber(Cucumis sativus L.Del 99)in greenhouse.This experiment,including four treatments[control group(CK),vermicompost(V),desulfurization gypsum(G)and mix desulfurization gypsum&vermicompost(G+V)],was conducted in Ningxia Horticultural Industrial Park from 2018 to 2020.The effects of different treatments on soil physical properties,soil enzymes,soil microbial community distribution,cucumber quality and yield were investigated,and they were included in the soil quality index(SQI)for fitting analysis with cucumber yield.The results showed that,vermicompost and desulfurized gypsum(G+V)could reduce the soil pH and increase the contents of soil organic matter,nitrogen,phosphorus and potassium under continuous cropping soil in northern China.The bacterial community of G+V was the most abundant,and the proportion of Actinobacteria increased with the increase of cucumber planting years.After four consecutive cultivation,all the application of amendment could significantly increase cucumber yield,and the G+V treatment had a higher increase,which was 19.81%,31.47%,11.36%and 14.98%higher than the CK,respectively.Correlation analysis found that SQI was significantly positively correlated with cucumber yield.In conclusion,the application of G+V can improve the soil comprehensive quality index and increase cucumber yield in greenhouse.The results of this study provide a theoretical reference for the sustainable production of greenhouse vegetables and the improvement of continuous cropping obstacles in northern China.