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通过田间调查、土壤样品采集和检测分析,对上海市郊设施大棚栽培西瓜、甜瓜土壤的理化性质和主要施肥情况进行了调查。结果显示:经设施大棚栽培西瓜、甜瓜的土壤中硝态氮等速效态养分积累显著,全盐量含量上升最明显,且常年大棚栽培的土壤较1年大棚栽培的土壤速效养分累积和盐化现象更严重,但有效态微量元素没有呈现明显的规律性;从施肥情况分析,上海市郊瓜农在施肥方面虽有一定的认识,但仍存在肥料品种选择单一、肥料施用盲目等问题。
Through field investigation, soil sample collection and detection analysis, the physical and chemical properties and main fertilization of watermelon and muskmelon cultivated in greenhouse facilities in suburbs of Shanghai were investigated. The results showed that the accumulation of nitrate isobaric isoforms was significant in the soils cultivated in greenhouses and muskmelons, and the content of total salt content was the most obvious. The contents of soil available nutrients and salinization However, the available trace elements did not show obvious regularity. According to the analysis of fertilization, melon farmers in suburban Shanghai had some problems in fertilization, but there was still a single choice of fertilizer varieties and blind application of fertilizers.