湖北农业科学2025，Vol.64Issue(4)：31-34,41,5.DOI:10.14088/j.cnki.issn0439-8114.2025.04.006
追施尿素或硫酸钾复合肥对北柴胡根系及土壤的影响
Effects of urea or potassium sulfate compound fertilizer on roots of Bupleurum chinense DC.and soil
摘要
Abstract
The aim of this study was to understand the effects of fertilizers on the yield,contents of medicinal components and rhizo-sphere soil of Bupleurum chinense DC.in Shiyan City,Hubei Province.Under certain conditions of basal fertilizer,the effects of urea and potassium sulfate compound fertilizer on root growth,total saponins content,water-soluble aggregates,organic matter content,ni-trogen content,phosphorus content and potassium content in rhizosphere soil of two-year-old B.chinense were studied.The results showed that when the basal fertilizer was 750 kg/hm2 of potassium sulfate compound fertilizer(N-P2O5-K2O=14-16-15,total nutri-ent≥45%)and 750 kg/hm2 of the compound probiotic fertilizer(N-P2O5-K2O≥5%,organic matter≥45%),applying urea or potassi-um sulfate compound fertilizer twice as topdressing had no significant effects on fresh root weight,main root length,total saponins con-tent,root configuration,soil water-soluble aggregates and rhizosphere nutrients of two-year-old B.chinense DC.,and the soil nitro-gen and phosphorus content was low.This might be that under certain soil nutrient conditions,single topdressing urea or potassium sul-fate compound fertilizer was helpful to the growth of B.chinense,but B.chinense has more demand for soil phosphorus,resulting in less phosphorus content in lateral root and rhizosphere soil,so topdressing requires mixed application of nitrogen,phosphorus and po-tassium fertilizers.关键词
北柴胡(Bupleurum chinense DC.)/追肥/尿素/硫酸钾复合肥/根系形态/皂苷含量/根际土壤Key words
Bupleurum chinense DC./topdressing/urea/potassium sulfate compound fertilizer/root morphology/saponins content/rhizosphere soil分类
农业科技引用本文复制引用
汤兵,赵秀梅,游景茂,张泽志,李坤..追施尿素或硫酸钾复合肥对北柴胡根系及土壤的影响[J].湖北农业科学,2025,64(4):31-34,41,5.基金项目
国家中医药管理局中医药创新团队及人才支持计划项目(ZYYCXTD-D-202005) （ZYYCXTD-D-202005）
湖北省重点研发项目(2022BBA153) （2022BBA153）
中央引导地方发展专项(2022BGE256) （2022BGE256）
国家现代农业产业技术体系建设专项(CARS-21) （CARS-21）
湖北省农业科技创新中心重大科技研发项目(2020-620-000-002-04) （2020-620-000-002-04）
