烟稻复种连作对土壤理化性状影响效应研究  

Study on effect of continuous and multiple cropping of tobacco-rice on soil physical and chemical properties

作　　者：梁文旭[1] 靳志丽 杨勇辉 熊际东 

机构地区：[1]永州职业技术学院,湖南永州425000 [2]永州市烟草公司,湖南永州425000 [3]中国烟草中南农业试验站永州基地,湖南永州425000 [4]永州市烟草公司道县分公司,湖南道县425300 [5]永州市烟草公司新田分公司,湖南新田425700

出　　处：《广东农业科学》2013年第17期48-51,共4页Guangdong Agricultural Sciences

基　　金：湖南省烟草专卖局项目(09-12Aa01)

摘　　要：采取土壤定位检测和回归分析方法进行烟稻复种连作对土壤理化性状的影响效应研究，结果表明，在0～23年烟稻复种连作研究范围内，随复种连作年限的增加，土壤pH值显著升高，且均在7．5以上；土壤物理性状逐步变劣；土壤有机质、氮磷养分、土壤微生物的变化较复杂，基本在复种连作14～18年后呈下降趋势，土壤理化性状的变化趋势总体不利于烤烟生长。Location detection in tobacco field and the method of regression analysis were took to research the effect of continuous and multiple cropping of tobacco-rice on soil physical and chemical properties.The results showed that during 0-23 years of continuous and multiple tobacco-rice cropping,soil pH value increased significantly and was in the above 7.5 level.With increasing of continuous and multiple cropping years.Soil physical properties was gradual deterioration.The change of organic matter,nitrogen and phosphorus nutrients, microorganism of soil was complex,it showed a downward trend after 14-18 years of continuous and multiple cropping.The change trend of soil physical and chemical properties was not conducive to the growth of flue-cured tobacco.

关 键 词：烤烟 烟稻复种连作 土壤 理化性状 

分 类 号：S151.9[农业科学—土壤学]