【摘要】 在柑橘产区大范围采集田间叶片、土壤样品,并对样品的化学分析数据进行相关分析,筛查柑橘P吸收的主要障碍因子,研究Hg等重金属污染对柑橘P吸收的影响.经2 a对3个柑橘品种250组数据进行筛查,验证柑橘叶片Hg污染为影响植株P吸收的主要因子,叶片Hg含量大多高于土壤Hg含量,它们之间的相关性不显著;在抽查的12份含Cu杀菌剂中检测出6份Hg含量≥0.5 mg.kg-1,最高达15.1 mg.kg-1,表明杀菌剂是柑橘生产中Hg的污染源之一.更多还原

【Abstract】 Main barrier factors in P absorption by citrus plants were screened by collecting leaves and soil samples in the large area of citrus-producing area,and making correlation analysis on data of chemical analysis.It was validated that pollution from Hg in leaf was the main influencing factors of P absorption by citrus plants,by screening 250 data of 3 citrus varieties for 2 years.Leaf Hg content was higher than soil Hg content and the correlation between them was not significant.In randomly checked 12 fungicides,Cu contents in 6 fungicides were over 0.5 mg·kg-1,the highest content was 15.1 mg·kg-1,As a result,fungicide is Hg pollution resource in citrus orchard.更多还原