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当前位置: 首页 > 文章 > 上海市浦东新区设施菜地土壤养分特征及改良建议 上海农业学报 2009,25 (1) 53-56
Position: Home > Articles > The nutrient characteristics and improvement proposals of greenhouse vegetable soils in Pudong New District Acta Agriculturae Shanghai 2009,25 (1) 53-56

上海市浦东新区设施菜地土壤养分特征及改良建议

作  者：
杨业凤;姚政;金海洋;徐四新;徐阳春;杨建军
单  位：
上海市农业科学院生态环境保护研究所;南京农业大学资源与环境科学学院
关键词：
设施菜地;土壤养分;耕层;土壤改良
摘  要：
通过对上海市浦东新区设施菜地土壤养分的调查研究结果表明:经过几年的高投入高产出栽种,蔬菜大棚土壤养分含量比第二次土壤普查时大幅增加。有机质增幅达55.1%,速效磷增幅高达319.2%,硝态氮含量>210 mg/kg的土壤占51.6%,速效钾>240 mg/kg的土壤占96.8%;设施菜地土壤养分向表层聚集,养分含量变化趋势表现为:0~5 cm>5~10 cm>10~20 cm;不同大棚土壤各养分含量在种植3年时均达到最大值,种植4~5年以上有小幅下降,但仍高于种植1~2年的;pH值在土壤剖面中呈现由上向下升高的趋势,且随种植年限增加逐年下降。
译  名：
The nutrient characteristics and improvement proposals of greenhouse vegetable soils in Pudong New District
作  者：
YANG Ye-feng1,2,YAO Zheng2,JIN Hai-yang2,XU Si-xin2,XU Yang-chun1,YANG Jian-jun2(1College of Resources & Environmental Sciences,Nanjing Agricultural University,Nanjing 210095,China;2Eco-Environmental Protection Research Institute,SAAS,Shanghai 201106,China)
关键词：
Greenhouse vegetable soil;Soil nutrient;Worked soil;Soil improvement
摘  要：
Nutrient contents of greenhouse vegetable soils in Pudong New District of Shanghai were investigated.The result showed that the nutrient contents increased significantly through 10-odd-year planting with high fertilizer input,compared with the data of the second soil investigation conducted in 1980s.The soil organic matter content increased by 55.1%,and the readily available phosphorus content was averagely 153.9 mgkg and increased by 319.2%.The soil containing above 210 mgkg nitrate nitrogen accounted for 51.6% of all samples,and the soil with above 240 mgkg readily available potassium accounted for 96.8%.The soil nutrients accumulated in surface layer and their content trend was 0~5 cm >5~10 cm>10~20 cm.All the soil nutrient contents basically reached the highest in the 3rd year of greenhouse growing and later slightly decreased but were still higher than those in the 1st and 2nd year.The pH value of the soil rose gradually with the soil depth increasing but dropped annually.

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