甘蔗间种菜用大豆对蔗田土壤养分的影响  

Effect of Sugarcane-soybean Intercropping on Soil Nutrients

作　　者：孟庆宝[1] 方锋学[1,2] 周艳霞[1] 龙明华[1] 刘海斌 张革民 汪淼 黄芳 蒋洪涛 

机构地区：[1]广西大学农学院,南宁530005 [2]广西甘蔗研究所,南宁530007

出　　处：《中国农学通报》2011年第5期186-189,共4页Chinese Agricultural Science Bulletin

基　　金：国家科技支撑计划项目"高产;高糖;抗逆性强甘蔗新品种选育"(2007BAD30B02);广西科学研究与技术开发计划"糖料蔗新品种选育及高效节本增效栽培技术研究"(桂科攻0782004-2);广西重点实验室培育基地建设"广西甘蔗分子遗传与品种改良研究重点实验室建设"(07-81-001)

摘　　要：通过在甘蔗行间间种菜用大豆,研究不同大豆品种、不同播期及不同间种密度对蔗田土壤N、P、K及有机质等的影响。结果表明,在相同田间管理和施肥情况下,不论是不同的大豆品种,播期还是间种密度,间作蔗田土壤养分含量都有不同程度的提高;甘蔗单作后,土壤氮、磷、钾和有机质含量明显下降,甘蔗间种大豆则有利于降低相应养分含量的下降幅度,提高有机质含量。说明合理的间种可以维持土壤肥力和保持地力。综合3个因素来看,以2月中旬间种1行中熟大豆品种的效果最好。The effects of sugarcane intercropping with soybean on soil nutrients have been studied as the scientific basis to establish Guangxi sugarcane favorable intercropping model. Soil organic matte, N, P and K contents were determined under different soybean cultivars （early, mid and late maturing）, sowing dates and planting density. Results showed that intercropping of sugarcane with soybean enhanced the soil nutrient under the same fertilizer and management condition. Soil nutrient tend to decline after sowing sugarcane, but the declines were less under intercropping than under sugarcane single culture. Three factors （variety, sowing date and planting density） analysis showed that intercropping mid maturing soybean variety in one line and in mid February helped improving soil nutrient and balancing the soil fertility.

关 键 词：甘蔗 间种 菜用大豆 土壤养分 

分 类 号：S566.1[农业科学—作物学]