山东省章丘富硒大葱产地土壤地球化学环境及适宜性研究

GEOCHEMICAL ENVIRONMENT AND SUITABILITY STUDY OF ZHANGQIU Se-RICH SCALLION PRODUCING AREA IN SHANDONG PROVINCE

在章丘大葱种植区和规划种植区开展表层土壤地球化学背景调查,发现区内表层土壤具有高Se、B、P、N、S,低F、Mo、Ca的特点。较高的有益元素,尤其是Se含量,构成了该区发展特色富硒农产品的重要基础。章丘大葱植株中的硒和重金属含量与土壤中的硒和重金属含量关系密切。根据产区土壤的安全性研究结果,提出了章丘富硒大葱的种植规划,将全区划分为4个规划区,即最适宜区、较适宜区、一般适宜区和不适宜区,为优化章丘富硒大葱的种植规划、开发方案制定提供了参考。

Soil geochemical background investigation was carried out in the scallion growing area and planned scallion area of Zhangqiu.It is found that the surface soil of these areas has high level of Se,B,P,N,S and low level of F,Mo,CaO.The richness of the beneficial elements,especially Se,constitutes the favorable prerequisite for the development of a Se-rich agricultural base area.Soil fertility status and environmental quality in the region are both good,Se and heavy metal elements values in scallion have a close relationship with their values in soil.A comparison with the green and pollution-free food producing soil standards shows that the survey area land has a high degree of security,which makes the area very suitable for the scallion cultivation.On such a basis,the authors put forward the Se-rich scallion planting plan for Zhangqiu,and the whole work region can be divided into four planning areas： the most suitable area,the comparatively suitable area,the somewhat suitable area and the unsuitable area.The feasibility of developing Zhangqiu Se-rich scallion is discussed in this paper,which may be used as a reference for optimizing the cultivation of Zhangqiu Se-rich scallion and making the plan for further development.