甘蔗/花生间作对土壤微生物和土壤酶活性的影响  

Effects of Sugarcane /Peanut Intercropping on Soil Microbes and Soil Enzyme Activities

作　　者：沈雪峰[1] 方越[1] 董朝霞[1] 陈勇[1] 

机构地区：[1]华南农业大学农学院,广东广州510642

出　　处：《作物杂志》2014年第5期55-58,共4页Crops

基　　金：公益性行业(农业)科研专项"现代农作制模式构建与配套技术研究与示范"(201103001);华南农业大学校长基金(4100-k11138)

摘　　要：为了研究甘蔗/花生间作对土壤微生物和土壤酶活性的影响,采用大田试验的方法,以花生和甘蔗为试验材料,研究了华南地区甘蔗/花生间作对土壤微生物数量、土壤酶活性以及土壤养分状况的影响。结果表明:与甘蔗和花生单作相比,甘蔗/花生间作系统能够显著提高甘蔗和花生根际的土壤细菌、真菌和放线菌数量,改善根际土壤脲酶和磷酸酶活性,不同程度提高整个间作系统作物根际土壤有机质、碱解氮、速效磷以及速效钾的含量,可见,甘蔗/花生间作可以明显地改善两种作物根际土壤微生物数量、酶活性和养分状况。A field experiment was conducted to study the effects of sugarcane /peanut intercropping on soil microbial community and enzyme activities. Comparing with peanut and sugarcane monoculture,the intercropping could significantly increase the quantity of soil bacteria,fungi and actinomyces,improve the activity of urease and phosphatase and enhance the content of the soil organic matter,alkali hydrolysable N,available P and available K. It is suggested that sugarcane /peanut intercropping could obviously improve the status of soil microbes,enzyme activities and nutrients in root areas.

关 键 词：甘蔗 花生 间作 土壤微生物 土壤酶活性 

分 类 号：S566.1[农业科学—作物学] S565.2