Trace Elements in Fertilizers Used in Peru

Online journal of biological sciences

article

Víctor Gómez¹  Mauricio Molina-Roco²  Elder Chichipe³  Eli Morales Rojas⁴ 

[1] Department of Science for Sustainable Development, Graduate School, National University Toribio Rodriguez de Mendoza;Department of Aquaculture and Agri-Food Resources, Universidad de Los Lagos;Department of Soil and Water Research Laboratory ,(LABISAG), Research Institute for the Sustainable Development of Ceja de Selva ,(INDES-CES), Universidad Nacional Toribio Rodríguez de Mendoza;Department of Natural and Applied Sciences, Universidad Nacional Intercultural Fabiola Salazar Leguía de Bagua

关键词: Fertilizers;    Trace Metals;    Soil Contamination;    Fertilizer Quality;   

DOI  :  10.3844/ojbsci.2023.219.225

学科分类：生物科学（综合）

来源: Science Publications

【 摘 要 】

Fertilizers provide essential nutrients for crops, however, they may also inadvertently provide trace elements that in certain concentrations represent a risk to the soil and the food chain. The objective of this research was to determine the concentrations of Cd, Pb, Cu, and Zn in the most common fertilizers used in Peruvian agriculture. Twenty-one products including inorganic, organic mineral, and organic fertilizers were analyzed by microwave plasma atomic emission spectrometry. The results were compared against international standards. The content of the trace elements was variable and related to the type of fertilizer. Phosphorus fertilizers showed higher concentrations of Cd (3.3-42.3 mgkg-1), most of which exceeded the regulatory limits of several countries. In the case of Pb, none of the fertilizers analyzed exceeded the regulatory limits. Chicken manure showed the highest concentrations of Cu and Zn. The concentration of trace elements such as Cd in fertilizers should be monitored in Peru, since the prolonged and intensive use of phosphorus fertilizers in doses that do not consider technical recommendations, could represent an accumulation of these elements in soils, with the consequent risk to human health and the environment.

【 授权许可】

CC BY