The fertility and heavy metals（As,Hg,Cr,Pb,Cd） contents in the Panax pseudoginseng-growing soil of Xinjia Town,Jingxi County,Guangxi Province were investigated.The results showed that the organic matter content and ...The fertility and heavy metals（As,Hg,Cr,Pb,Cd） contents in the Panax pseudoginseng-growing soil of Xinjia Town,Jingxi County,Guangxi Province were investigated.The results showed that the organic matter content and available K content in the investigated area reached the grade I and II,respectively,but the available K content in the plot 2 stayed at the grade III;the available N contents in the three plots were all in the grade IV,a deficiency state;the contents of four（As,Hg,Pb,Cd） out of the five kinds of heavy metals did not exceed the relevant standards,but that of Cr reached the slight pollution state.However,from the perspective of comprehensive pollution index,the heavy metal contents in the three plots all exceeded the cordon,and the heavy metals needed to be removed from the P.pseudoginseng-growing soil.展开更多
文摘The fertility and heavy metals（As,Hg,Cr,Pb,Cd） contents in the Panax pseudoginseng-growing soil of Xinjia Town,Jingxi County,Guangxi Province were investigated.The results showed that the organic matter content and available K content in the investigated area reached the grade I and II,respectively,but the available K content in the plot 2 stayed at the grade III;the available N contents in the three plots were all in the grade IV,a deficiency state;the contents of four（As,Hg,Pb,Cd） out of the five kinds of heavy metals did not exceed the relevant standards,but that of Cr reached the slight pollution state.However,from the perspective of comprehensive pollution index,the heavy metal contents in the three plots all exceeded the cordon,and the heavy metals needed to be removed from the P.pseudoginseng-growing soil.
