常规、无公害和有机蔬菜生产模式对土壤性状的影响  

Effect of conventional,low-input and organic vegetable cropping systems on soil properties

作　　者：张阿克 韩卉[1] 杨合法[2] 李季[1] 

机构地区：[1]中国农业大学资源环境学院,北京100193 [2]中国农业大学曲周实验站,河北曲周057250

出　　处：《江苏农业学报》2013年第6期1345-1351,共7页Jiangsu Journal of Agricultural Sciences

基　　金："十二五"支撑计划项目(2012BAD14B01)

摘　　要：以2002年建立的日光温室蔬菜生产长期定位试验为基础,通过10年常规、无公害和有机3种生产模式下蔬菜的定位试验,对土壤性状进行了比较研究.结果表明：与2002年相比,2012年0～20 cm和20～40 cm土层土壤全氮、全磷、速效磷、速效钾和有机质含量都有不同程度的提升,有机生产模式土壤养分提升幅度最大;2012年有机生产模式的0～20 cm和20 ～ 40 cm土层土壤有机质含量,氮、磷全量及速效氮、磷、钾含量明显高于常规模式和无公害模式,有机生产模式土壤容重最小.Based on a long-term localization experimentx initiated in 2002, soil properties was compared through the ten-year localization experiment on greenhouse vegetable under three different cropping systems including organic, low-input and conventional. The main results were as follows. Compared with the data in 2002, total nitrogen and phosphorus, avail- able phosphorus and potassium and soil organic matter content in 0-20 cm and 20-40 cm soil under three cropping systems were enhanced in varying degrees in 2012, especially under organic systems. In 2012, soil organic matter content, total ni- trogen, phosphorus and available nitrogen, phosphorus, potassium in 0-20 cm and 20-40 cm soil under organic cropping systems were obviously higher than those under low-input and conventional cropping systems, and soil bulk density in or- ganic cropping systems was the lowest.

关 键 词：有机农业 有机蔬菜 土壤养分 

分 类 号：S152.4[农业科学—土壤学]