摘要
以太子参新茬土壤和连作土壤为研究对象,采用盆栽试验,对比研究了不同温度(60、90、120℃)和时间(3、6、9、12h)的土壤加热处理对太子参产量的影响。结果表明:热处理新茬土壤对太子参产量的促进作用不显著,而热处理15年和8年连作土壤后,太子参产量最高分别可以增长545.16%和139.29%。连作土壤经60℃处理6h,或在较高温度(90℃或120℃)下处理3h即能显著增产。土壤热处理可能是通过抑制连作土壤中的有害微生物而缓解了太子参的连作障碍,提高了太子参的产量。
With virgin and replanting soil of Radix Pseudostellariae as research object,effect of soil heating in different temperatures（60℃,90℃and 120℃）and various durations（3hours,6hours,9hours and 12hours）on yield of Radix Pseudostellariae was tested by pot experiments.The results showed that effect of virgin soil heating on the increment of yield of Radix Pseudostellariae was not statistically significant,however,soil heating increased yields by up to 545.16%and 139.29%for 15-years and 8-years continuous cropping soil,respectively.Replanting soil heating at 60℃for 6hours,or at higher temperatures（90℃or 120℃）for 3hours significantly improved yield of Radix Pseudostellariae.Soil heating played an important role in increasing yield and alleviating soil sickness of Radix Pseudostellariae probably by eliminating harmful soil microbes.
出处
《北方园艺》
CAS
北大核心
2016年第7期140-143,共4页
Northern Horticulture
基金
国家自然科学基金资助项目(31201160)
贵州省科学技术基金资助项目(2012-2302)
贵州省教育厅黔东南州农林产业病虫害鉴定及有害生物防治创新团队资助项目(黔教合人才团队字[2014]48号)
关键词
药用植物
太子参
连作障碍
土壤热处理
medicinal plant
Radix Pseudostellariae
replant disease
soil heating
