摘要
为研究烤烟不同轮作周期内土壤有机质、全氮、碱解氮、速效磷、速效钾有效养分的变化规律,进行了烤烟-休闲、烤烟-小麦、烤烟-油菜和烤烟-马铃薯轮作试验。结果表明:轮作可增加土壤有机质、全氮、速效氮、磷和钾等有效养分,烤烟-油菜轮作对土壤有机质含量的影响最大。从土壤有效养分变化综合分析,最合适轮作搭配的模式为烤烟-油菜轮作。
The variation rule of organic matter,total nitrogen,available nitrogen,rapid available P and rapid available K in soil was analyzed under different rotation patterns of tobacco-fallow,tobaccowheat,tobacco-rape and tobacco-potato.Results：Different rotation patterns can increase available nutrients of organic matter,total nitrogen,available nitrogen,rapid available P and rapid available K in soil and the tobacco-rape rotation pattern has the significant effect on organic matter content of soil.The optimum crops rotation combination is the tobacco-rape rotation pattern by comprehensively analyzing variation of available nutrients in soil.
出处
《贵州农业科学》
CAS
2015年第9期91-93,共3页
Guizhou Agricultural Sciences
基金
贵州省科技厅安顺市人民政府安顺学院三方联合基金项目"烟草轮作周期内的养分循环规律及肥料统筹技术研究"[黔科合J字LKA(2012)08]
关键词
烤烟
轮作方式
土壤有效养分
动态变化
tobacco
rotation pattern
soil available nutrient
dynamic changes
作者简介
王家顺（1980-），男，副教授，硕士，从事植物营养生理与生态研究和养分资源管理工作。E-mail：wangjiashunl980@163．com
