Research on Impact of Soil Lead Pollution on Growth of Mulberry Tree and Quality of Mulberry

This article researched the effects to mulberry growing and folia mori traits as the soil was contaminated in different Pb level by a way of combining pot incubation test and indoor test together.The results showed that the low Pb concentration(≤200mg/kg dry soil)disposing made the plant height a trend of ascending,middle and high Pb concentration(≥300mg/kg dry soil)disposing made the plant height a trend of cutting down.However,the gross content of chlorophyll,dissolubility suger and farina showed that a trend of ascending at the beginning and cutting down after that with gradient increasing of Pb level,and the turning point was 200mg/kg dry soil(soil primary standard).When the Pb level in soil overruned 200mg/kg dry soil,mulberry growing and folia mori traits were threaten sharply.