日光温室不同蔬菜轮作体系对土壤环境的影响  

Effects of Vegetable Rotation Systems on the Soil Environment in Greenhouse

作　　者：符建平[1] 张丽红[2] 王芳[1] 王铁臣[2] 吕建 李志强[1] 高丽红[1] 

机构地区：[1]中国农业大学农学与生物技术学院,北京100193 [2]北京市农业技术推广站,北京100029 [3]北京市密云县农业技术推广站,北京101500

出　　处：《华北农学报》2008年第B10期334-339,共6页Acta Agriculturae Boreali-Sinica

基　　金：北京市科委重大项目(D0706003040291);国家科技支撑项目(2007BAD0005801)

摘　　要：在有机栽培条件下,研究了以番茄为后茬作物的不同蔬菜轮作体系对土壤化学指标,土壤微生物和土壤线虫的影响。结果表明:经过一年的轮作后,各处理土壤的pH值均有所下降,EC值变化不大。除了对照的有效磷含量降低以外,其他轮作体系土壤有机质和速效养分含量与基础土样相比都有一定提高,其中葱-萝卜与番茄轮作处理积累的有机质和全氮最多,花椰菜与番茄轮作处理的速效养分含量最高。对照的土壤细菌数、固氮菌数、放线菌数量与基础土壤相比显著降低,而真菌数量明显增加。每个处理的土壤线虫总数均比基础土样增加,其中菊花处理的土壤线虫总数最多,根结线虫最少。Under organic cultivating condition,the author researched the influence of different rotation system which tomato was the succeeding crop on the soil chemical indexes,the soil microbe and the soil nematode.The results showed that： after one year′s experiment,the soil pH value of each treatment was decreased,the soil EC value had not changed distinctly.Except for available phosphorus content of control,other rotation system were improved in soil organic matter and soil available nutrient compared to the basic soil samples.Among them,the treatment of welsh onionradish-tomato was most in soil organic matter content and soil total nitrogen.Available nutrient content in soil of cauliflower treatment is most.The number of soil bacterium,azotobacter,actinomycetes were decreased significantly compared with basic soil samples.But the number of soil fungi was increased.The number of soil nematode of every treatment were increase.Among them,number of soil nematode was most but number of soil Root-knot nematode was least in chrysanthemum treatment.

关 键 词：轮作 土壤化学性状 土壤微生物 土壤线虫 

分 类 号：S625[农业科学—园艺学]