豆科植物土壤浸提液对马铃薯连作土壤酶活性和电导率的影响  

Effect of the Legumes Soil Leaching Liquor on Soil Enzyme Activity and Conductivity of Continuous Cropping Potato Soil

作　　者：贾丽琴[1] 秦舒浩[1] 张俊莲[1] 师尚礼[2] 王东[1] 徐雪雪[1] 

机构地区：[1]甘肃省作物遗传改良与种质创新重点实验室/甘肃农业大学园艺学院,兰州730070 [2]草业生态系统教育部重点实验室/甘肃农业大学草业学院,兰州730070

出　　处：《中国农学通报》2015年第25期30-34,共5页Chinese Agricultural Science Bulletin

基　　金：中国博士后面上项目"轮作豆科牧草对马铃薯连作田土壤改良效应研究"(2012M512042);特别资助项目"轮作豆科牧草对马铃薯连作田土壤生物修复机制研究"(2014T70942);国家自然科学基金"全膜双垄连作种植对马铃薯连作田土壤质量的影响"(31260311);马铃薯产业技术体系专项(CARS-10-P18)

摘　　要：为了探明豆科植物土壤浸提液对马铃薯连作土壤酶活性和电导率影响的差异,以马铃薯品种‘新大坪’为试验材料,研究5种种植方式下3年连作田土壤浸提液和4年豆科植物土壤浸提液对马铃薯连作土壤酶活性和电导率的影响。结果表明:半膜沟播土壤电导率1:1处理的与对照相比降低16.70%,其他处理马铃薯连作土壤的电导率均升高;各处理的过氧化氢酶、碱性磷酸酶和脲酶活性均显著提高,其中1:1处理对平畦覆膜和半膜沟播的过氧化氢酶、碱性磷酸酶和脲酶活性均作用显著,对全膜垄播和全膜沟播的过氧化氢酶和脲酶活性有显著影响;1:2处理对半膜垄播连作土壤过氧化氢酶、碱性磷酸酶和脲酶活性有明显的促进作用,对全膜垄播和全膜沟播的碱性磷酸酶活性作用显著。In order to study the effects of legumes soil leaching liquor on soil enzyme activity and conductivityin continuous cropping potato field, the potato cultivar‘Xindaping＇was used as test material, the effects of soilleaching liquor of three years potato continuous cropping field and four years leguminous plants soil under fiveplanting patterns on soil enzyme activity and conductivity in continuous cropping potato field were studied. Theresults showed that compared with CK, soil conductivity of half-film trench sowing 1：1 treatment decreased16.70%, soil conductivity of other treatments all showed an increasing trend. The activities of catalase, alkalinephosphatase and urease significantly increased in all treatments, the 1：1 treatment significantly increased thoseenzyme activities of flat- trench filming and half- film trench sowing, the 1：1 treatment also significantlyaffected the activities of catalase and urease of whole-film bed planting and whole-film trench sowing; 1：2treatment could significantly improve the activities of catalase, alkaline phosphatase and urease of half-filmbed planting, and it significantly affected alkaline phosphatase activity of whole-film bed planting and whole-film trench sowing.

关 键 词：豆科植物 土壤浸提液 马铃薯连作土壤 电导率 土壤酶活性 

分 类 号：S3[农业科学—农艺学]