不同褐土区菜地与相邻粮田土壤性状比对研究  

Study on the soil characters of vegetable field and adjacent grain field in different cinnamon areas

作　　者：刘洋[1] 彭正萍[1] 王艳群[1] 马阳 门杰[1] 李迎春[2] 郭李萍[2] 刘淑桥 门明新[1] 

机构地区：[1]河北农业大学资环学院/河北省农田生态环境重点实验室,河北保定071001 [2]中国农业科学院农业环境与可持续发展研究所,北京100081 [3]河北省土壤肥料总站,河北石家庄050021

出　　处：《河北农业大学学报》2017年第6期21-26,共6页Journal of Hebei Agricultural University

基　　金：国家重点研发计划(2016YFD0800105-4);省科技计划项目(17226914D);省教育厅百名优秀创新人才计划;省社科发展研究项目(201703020235)

摘　　要：选取不同褐土区的菜地和相邻粮田为研究对象,通过实地调查和取样分析相结合,研究了不同区域土壤的主要物理和化学养分性状。结果表明:各区域菜地比相邻粮田pH降低、电导率提高,而且前者的土壤有机质、全氮、碱解氮、有效磷、速效钾和有效Fe、Mn、Cu、Zn的含量明显高于后者,主要是由于菜地施肥量明显高于粮田。各区域土壤养分均随着土层深度的增加有不同程度降低。土壤有效磷变异系数最大,pH值变异系数最小。不同区域种植作物种类不同,土壤养分供应能力也存在较大差异,建议根据区域土壤养分供应特征、种植目标作物产量和需肥特性,实行合理施肥,减少养分在环境中的损失。In this paper,vegetable fields and adjacent grain fields in different cinnamon areas were selected as the research objects.The main physical and chemical nutrient traits of different soil layers were studied by field investigation and sampling analysis.The results showed that the soil pH values of vegetable fields in different areas were lower than those of the adjacent grain fields,the electrical conductivities in the former were than those in the latter.Soil nutrient contents in vegetable fields,such as organic matter,total nitrogen,available nitrogen,phosphorus,potassium,Fe,Mn,Cu and Zn,were higher than those in adjacent grainfields.The primary cause was increased fertilizers used by farmers in vegetable production.All the determined soil nutrient decreased a soil depth increased.The coefficient variation of available phosphorus was the largest,and pH was the smallest.As distinct crop types were planted in different regions,soil nutrient supply capacities also showed greater differences.So it is suggested that fertilization should be carried out according to the target crop yield as nutrient requirements and regional soil nutrient supplies,which could reduce nutrient loss into environment.

关 键 词：菜地 粮田 土壤理化性状 施肥现状 施肥建议 

分 类 号：S153.6[农业科学—土壤学]