关键词: 药材田, 粮作田, 有效铜, 有效锌, 微量元素

Abstract: Soil samples were taken from three layers（0-20，20-40，40-60cm）of herbal fields and foodcrop fields in 10 villages of 4 townships in Anguo city，Hebei province，in May 2012.The available Cu and available Zn of soils were determined to clarify the status and their difference of the contents of available Cu and available Zn between two types of fields with various utilization patterns under current cultivation conditions. The results indicated that contents of available Cu and available Zn of herbal field soils were 0.34-1.21mg·kg-1 and 0-10.49mg·kg -1， respectively， and available Cu and available Zn of food crop field soils were 0.27-2.11mg·kg-1 and 0-3.44mg·kg-1， respectively. The results of ttest showed that soil available Cu and available Zn contents between herbal fields and foodcrop fields were not significant difference. However，soil available Cu of foodcrop fields were slightly richer，but available Zn were relatively lack. Soil available Zn of surface layer（0-20cm）in herbal fields and foodcrop fields were remarkably higher（P＜0.01）than the other two layers（20-40，40-60cm），but the difference of soil available Cu contents were not significant between three soil layers. The data showed that soil available Cu and available Zn contents among soil samples were great. Contents of soil available Cu and available Zn in herbal fields and foodcrop fields were similar，and contents of soil available Cu were in medium level to meet the demand of crop growth. However，available Zn contents were lack in herbal fields and foodcrop fields according to the soil trace element classification standard. So copper and zinc micronutrient fertilizer should be used increasingly to improve the quality and yield of herbal under current cultivation.

Key words: Herbal field, Foodcrop field, Available Cu, Available Zn, Microelement