作物定位轮作体系长期试验研究(IV)——土壤优势真菌对大豆种子萌发的影响  

Long-term crop rotation research(IV)——Effects of the soil dominant on the germinating of the soybean

作　　者：马春梅[1] 李恩普[2] 邸伟[1] 黄琰[1] 孙莉[3] 季尚宁[1] 

机构地区：[1]东北农业大学农学院,黑龙江哈尔滨150030 [2]甘南县农业技术推广中心,黑龙江甘南162100 [3]北安市农业技术推广中心,黑龙江北安164000

出　　处：《东北农业大学学报》2006年第5期577-581,共5页Journal of Northeast Agricultural University

基　　金：国家自然科学基金项目(39770433)

摘　　要：试验于2000年在东北农业大学院内试验田进行,从大豆正茬、迎茬、连作、7年连作(自1994年连续种植大豆)田间土壤中分离出优势真菌进行实验。研究表明,土壤真菌优势类群在苗期以木霉、青霉、镰刀菌为主,在盛花期和结荚期以青霉、毛霉、黑根霉为主,连作大豆的土壤真菌优势类群的种类、数量高于其它茬口。经不同茬口土壤真菌毒素液处理大豆种子后,表现出抑制大豆种子发芽,各处理间由于品种不同、茬口不同略有差别,抑制作用为连作>迎茬>正茬,7年连作处理的抑制作用有强有弱。This work was studied in the experimental plot of NEAU in 2000. In this experiment the advantage fungi was separated from the soil of rotation, every second year-cropping, continuous cropping and seven-year continuous cropping （soybean planted from 1994） in soybean field. The studies showed： the advantage fungi group were mainly Trichoderma spp, Penicillium spp, Fusarium spp. in, while Penicillium spp. Mucor spp. Rhizopus spp. in, the kinds and quantities of the advantage fungi in rotation was more than the others. It was showed that the sprout of soybean was suppressed after deal with drug under different rotations, and the result was different because of different varieties and treatments, which showed than continuous cropping 〉 every second year-cropping 〉 rotation, the seven-year continuous cropping was strong or weak.

关 键 词：定位轮作 土壤优势真菌 抑制作用 

分 类 号：S154.38[农业科学—土壤学] S565.1[农业科学—农业基础科学]