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硅钙钾镁肥对红托竹荪镉含量及品质的影响 被引量:2

Effects of Silicon Calcium Potassium and Magnesium Fertilizer on Cadmium Content and Quality of Dictyophora rubrovalva
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摘要 以红托竹荪为试材,采用盆栽试验法,研究了添加不同浓度硅钙钾镁肥(0%、0.5%、1%、3%、5%)对红托竹荪镉(Cd)累积及品质的影响,以期为保障红托竹荪的安全生产提供参考依据。结果表明:红托竹荪不同部位的Cd含量顺序依次为菌体>菌盖>菌托,添加不同浓度硅钙钾镁肥均能降低红托竹荪菌体、菌盖、菌托中的Cd含量,降幅依次为4.27%~20.30%、10.09%~25.94%、3.40%~22.85%;且在添加浓度为5%时达差异显著水平;菌体对Cd的富集系数约是菌盖的3倍,约为菌托的4倍,但各处理均有效降低了菌体、菌盖、菌托对Cd的富集,其中以5%处理降低Cd富集效果最好;添加浓度为3%的处理显著增加了红托竹荪总糖含量,各处理均降低菌体的粗纤维含量;红托竹荪菌体Cd含量与其品质含量的相关性分析显示菌体Cd含量与粗纤维含量呈显著正相关,与其它品质含量相关性均不显著。总体来看,硅钙钾镁肥能有效降低红托竹荪各部位Cd含量,同时可改善红托竹荪菌体口感和营养品质,以5%的施用浓度效果最佳。 The Dictyophora rubra was used as experimental material, effects of different concentrations of silicon calcium potassium and magnesium fertilizer(0%,0.5%,1.0%,3.0% and 5.0%) on Cd accumulation and quality of Dictyophora rubrovalva were studied by pot experiment, in order to provide reference for ensuring the safe production of Dictyophora rubrovalva.The results showed that the order of Cd content in different parts of Dictyophora rubrovalva was bacteria>cap>bacterial tray.Adding different concentrations of silicon calcium potassium and magnesium fertilizer could reduce the Cd content in bacteria, cap and bacterial tray by 4.27%-20.30%,10.09%-25.94% and 3.40%-22.85%.When the addition concentration was 5.0%,it reached a significant difference level.The enrichment coefficient of cadmium by bacteria was about 3 times that of cap and 4 times that of bacterial tray, but all treatments effective reduced the enrichment of Cd by bacteria, cap and bacterial tray, and 5.0% treatment had the best effect.The addition of 3.0% concentration significantly increased the total sugar content of Dictyophora rubrovalva,and each treatment decreased the crude fiber content of the bacteria.The correlation analysis between Cd content and quality content showed that Cd content was significantly positive correlated with crude fiber content, but not with other quality contents.On the whole, silicon calcium potassium and magnesium fertilizer could effectively reduce the Cd content in various parts of Dictyophora rubrovalva,and improve the bacterial taste and nutritional quality of Dictyophora rubrovalva.The application concentration of 5.0% was the best.
作者 王德美 秦松 范成五 杨念龙 刘桂华 WANG Demei;QIN Song;FAN Chengwu;YANG Nianlong;LIU Guihua(College of Agriculture,Guizhou University,Guiyang,Guizhou 550025;Institute of Soil and Fertilizer,Guizhou Academy of Agricultural Sciences,Guiyang,Guizhou 550006;Zhijin County Agricultural and Rural Bureau,Zhijin County,Bejie,Guizhou 552102)
出处 《北方园艺》 CAS 北大核心 2022年第17期105-111,共7页 Northern Horticulture
基金 贵州省科技支撑计划资助项目(黔科合支撑[2019]2368号) 贵州省科研机构服务企业行动计划资助项目(黔科合服企[2018]4008)。
关键词 红托竹荪 镉含量 品质指标 富集转运 Dictyophora rubrovalva cadmium content quality index enrichment and transport
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