Effects of long-term fertilizer applications on peanut yield and quality and plant and soil heavy metal accumulation  

作　　者：Xiaobing WANG Wuxing LIU Zhengao LI Ying TENG Peter CHRISTIE Yongming LUO 

机构地区：[1]College of Environmental Science and Engineering,Yangzhou University,Yangzhou 225127(China) [2]Key Laboratory of Soil Environment and Pollution Remediation,Institute of Soil Science,Chinese Academy of Sciences,Nanjing 210008(China) [3]Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization,Nanjing 210095(China)

出　　处：《Pedosphere》2020年第4期555-562,共8页土壤圈（英文版）

基　　金：supported by the Agricultural Science and Technology Innovation Fund of Jiangsu Province, China (No.CX (15)1044);National Natural Science Foundation of China (No.41671325);Natural Science Foundation of Jiangsu Province, China (No.BK20171521);Open Fund of the State Key Laboratory of Soil and Sustainable Agriculture, China (No.Y212000016);Open Fund of the Key Laboratory of Soil Environment and Pollution Remediation of Chinese Academy of Sciences (No.SEPR2011018)

摘　　要：The status of essential and potentially toxic trace elements in soils and crops can be affected by long-term fertilization practices. This study aimed to investigate changes in peanut (Arachis hypogaea L.) yield and kernel quality, and changes in copper (Cu), zinc (Zn), lead (Pb), and cadmium (Cd)concentrations in soil and peanut kernels after 16 years of continuous cropping with different fertilization treatments. Five fertilization treatments were applied at a red soil site in Southeast China:chemical fertilizer (F) containing nitrogen, phosphorus, and potassium, F+trace elements (FT), pig manure (M), M+effective microorganisms (MB), and MB+trace elements (MBT). Properties of soil and pig manure, heavy metal contents in soil and peanut kernels, and the compositions of amino and fatty acids in kernels were determined. Application of pig manure significantly increased peanut biomass, kernel yield, and crude protein and total amino acid contents in kernels, but led to higher amounts of Cu, Zn, and Cd in soil and higher amounts of Zn and Cd in peanut kernels compared with that of chemical fertilizer. There should be greater concern about potential kernel Cd and Zn contaminations resulting from long-term application of pig manure contaminated with potentially toxic metals as an organic fertilizer.

关 键 词：amino acid chemical fertilizer fatty acid pig manure potentially toxic metal 

分 类 号：S565.2[农业科学—作物学] X53[环境科学与工程—环境工程]