禽畜废弃物中的抗生素及其在蔬菜等农作物中的富集

Antibiotics in Livestock Wastes and Its Enrichment in Vegetable Crops

有机肥作为重要的肥源在有机及可持续农业生产中占有重要地位。但是近些年来,抗生素在畜牧业中的大量使用导致了其在禽畜废弃物中的过量残留,这使得抗生素在"饲料—禽粪—土壤"这一环节中的积累逐渐加重,并通过植物的吸收等方式进入食物链,从而成为威胁人类健康的潜在因素。抗生素含量很可能成为"绿色壁垒"的重要指标,并成为限制我国蔬菜等农产品出口的因素之一。本文综述了禽畜废弃物中的主要抗生素及其降解方式和降解周期,阐述了抗生素对植物生长的影响及在蔬菜等农作物中的富集,并进一步探讨了今后的研究方向。

Organic fertilizer is one of the most important fertilizer sources and plays an important role in sustainable agriculture production.However,recently a large number of antibiotics used in stockbreeding has led excessive residue in livestock wastes.So the antibiotics were accumulated in the circle of feed-manure-soil and came into the food chain through plants absorption.Therefore they became a potential factor threatening human health.The contents of antibiotics may become important index of 'green barrier'and one of the factors limiting the export of vegetable and other agriculture products produced in China.This paper expounds the major antibiotics in the livestock wastes and their degradation pattens and periods.It also expatiates the effects of antibiotics on plant growth and development,and the enrichment of antibiotics in vegetable crops.In addition,the paper further discusses about the research orientation in the future.