摘要
选取安顺4个山药种植区的同种山药,测定山药根茎灰分的质量分数及其对应生长土壤中几种矿质元素的质量比.结果表明:山药根茎中灰分的质量分数与土壤中Cu,Mn,Zn,Fe元素的质量比呈显著负相关关系;通过多元回归分析建立了山药根茎中灰分与土壤中这4种元素的数学模型,模型揭示了土壤中Cu,Mn,Zn,Fe等元素的质量比对山药根茎营养品质产生的影响.
Ash and several mineral elements in the tuber of common yam（Dioscorea batatas）grown in four yam-cultivating regions in Anshun were determined,and the correlation between the mineral elements in the tuber ash and in the soil was analyzed.The results showed that the three elements of Mn,Zn and Fe in the yam tuber were in a good correlation with those in the environmental soil of the crop.The contents of Cu,Mn,Zn and Fe in the tuber ash were in a negative correlation with those in the planting soil.Based on multivariate regression analysis,a mathematical model was established for the four mineral elements in the yam tuber and in the soil,which showed that the four mineral elements in the soil had a certain effect on the nutritional quality of yam tuber.
出处
《西南大学学报（自然科学版）》
CAS
CSCD
北大核心
2017年第5期31-36,共6页
Journal of Southwest University(Natural Science Edition)
基金
贵州省科学技术厅
安顺市人民政府
安顺学院联合科技基金项目(黔科合J字LKA[2013]06号
黔科合J字LKA[2012]05号)
贵州省教育厅自然科学研究项目(黔教科合KY字[2013]178号)
国家自然科学基金(30500041)
关键词
山药根茎
土壤
矿质元素
相关性
多元回归分析
yam tuber
soil
mineral element
correlation
multivariate regression analysis
