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对城郊于洪区有代表性的 1 1 0个温室土样进行了研究 .结果表明 ,与原耕作土壤相比 ,碱解氮、有效磷增幅较大 ,pH值呈下降趋势 ,电导率呈升高态势 ,有效铜呈降低而有效锌呈升高趋势 .电导率与硝态氮呈正相关 ,表明温室土壤存在酸化和次生盐渍化倾向 .蔬菜产量与土壤全氮、有效磷呈正相关 ,而与碱解氮呈负相关 .优化施肥、注重有机肥施用 ,控制氮肥用量 ,有针对性地施用石灰 ,注意灌水方法是城郊温室土壤管理的重点 .
The results showed that compared with the original tillage soil, the contents of available nitrogen and available phosphorus increased greatly, the pH value showed a downward trend and the conductivity increased The high and potential copper decreased and the effective zinc showed a rising trend.The conductivity was positively correlated with nitrate nitrogen, indicating that the greenhouse soil had the tendency of acidification and secondary salinization.The yield of vegetables was positively correlated with soil total nitrogen and available phosphorus, And negatively correlated with alkaline hydrolysis of nitrogen.Optimized fertilization, focusing on the application of organic manure, the amount of nitrogen fertilizer control, the targeted application of lime, pay attention to irrigation method is the suburb of greenhouse soil management focus.