关键词: 栽培制度, 黄瓜, 土壤养分, 土壤微生物

Abstract:

【Objective】 The aim of this study was to evaluate soil nutrients and microbial community of typical-8-year-old cucumber planting soil by different cultural systems in greenhouse 【Method】 The study was conducted using conventional chemical analysis and selective medium in different cultural systems and periods for 4 years pot experiment. 【Result】 Soil EC, pH, and available nutrients of all treatments were lower than the base soil after four years improvement. Catch garlic reduced soil EC, pH, available N, and K, and showed a significant difference with the control. Catch garlic (CS1) and crop rotation (CS2) reduced the content of soil available nutrients in the second and third year, changed the component of soil microbe, increased B/F value and fall and winter cucumber yield, and reduced Fusarium oxysporum population. 【Conclusion】 Catch garlic in summer season (CS1) and crop rotation (CS2) could improve soil quality and have remediation effects on continuous cucumber soil, as times goes by, the effect will be reduced.

Key words: cultural systems, cucumber, soil nutrient content, soil microbial community