关键词: 设施西瓜[Citrullus lanatus （Thunb.） Matsum. & Nakai], 土壤, 健康评价, 武汉市

Abstract: The samples of soil （0~20 cm） and agricultural products of facility cultivation watermelon [Citrullus lanatus （Thunb.） Matsum. & Nakai] were collected from major agricultural production areas in Wuhan City, and the physical and chemical indexes, the number of microorganisms of soil, and the quality indexes of agricultural products were detected. The results showed that the spatial variation of soil pH was from 4.91 to 7.16, and the variation of organic matter content was from 9.43 g/kg to 30.75 g/kg. The content of nitrate nitrogen in planting soil was very rich, and the content of available phosphorus and available potassium was at a high level. The soil bulk density and soil compactness were relatively close, and the soil water holding capacity in the field was different with different methods. The quantity of fungi in soil under facility cultivation did not change much, while the number of bacteria and actinomycetes fluctuated obviously. The soil health evaluation indexes of facility cultivation watermelon in Wuhan City were screened by principal component analysis method, and pH, available potassium, organic matter content, nitrate nitrogen, field water holding capacity and bacterial quantity were selected as evaluation indexes.

Key words: facility watermelon[Citrullus lanatus （Thunb.） Matsum. & Nakai], soil, health evaluation, Wuhan City