【摘要】 对安徽省不同地区有代表性的 5个温室 (塑料大棚 )及其相邻的露地土壤养分的含量和分布进行了研究。结果表明 :①被调查的设施栽培土壤表土有机质、全氮、碱解氮的含量范围依次为 :9.43～ 1 9.72g/kg、1 .0 5～1 .60g/kg、63.54～1 0 1 .67mg/kg;平均值分别为 1 3.94g/kg、1 .30g/kg、85.66mg/kg。②设施土壤有机质、全氮、碱解氮的含量随着剖面层次的加深逐渐降低。③设施栽培更有利于表层土壤氮素的积累。④设施土壤有机质、全氮、碱解氮的含量均高于相应的露地土壤 ,但差异不显著更多还原

【Abstract】 The nutrients of soils from five greenhouse(plastic sh ed) and its neig hborhood outdoors were studied in different representative areas of Anhui provin ce. The results showed that: 1, the content ranges of the topsoil organic matter , total nitrogen and alkaline hydrolytic nitrogen of the installation cultivatio n soils were 9.43～19.782?g/kg,1.05～1.60?g/kg and 63.54～101.67?mg/kg, and t heir average values respectively were 13.94?g/kg, 1.03?g/kg and 85.66?mg/kg; 2, the content s of organic matter, total N and alkaline hydrolytic N of the installation culti vation soils reduced gradually from topsoil to bottom soil; 3, installation cult ivation was propitious to nitrogen accumulation of topsoil and 4, the contents o f the organic matter, total nitrogen and alkaline hydrolytic nitrogen of install ation cultivation soil was all higher than the corresponding outdoors soil, but there were no obvious difference among them.更多还原