平江县耕地土壤有效态微量元素养分及施肥策略  

Soil Available Trace Element Nutrients and Fertilization Strategies of Tillable Field in Pingjiang County

作　　者：李安乡 陈历儒 江帆 易劲翔 胡宇倩 唐磊 龙一夫 LIAnxiang;CHEN Liru;JIANG Fan;YI Jinxiang;HU Yuqian;TANG Lei;LONG Yifu(Yueyang Agricultural Comprehensive Inspection and Testing Center,Yueyang,Hunan 414000,China;Yueyang Crop Quality and Safety Engineering Technology Research Center,Yueyang,Hunan 414000,China)

机构地区：[1]岳阳市农业综合检验检测中心,湖南岳阳414000 [2]岳阳市农作物质量安全工程技术研究中心,湖南岳阳414000

出　　处：《天津农业科学》2021年第2期68-72,共5页Tianjin Agricultural Sciences

基　　金：岳阳市科技研究与开发项目(2017-3-29)。

摘　　要：为探明湖南省平江县耕地土壤微量元素的丰缺水平及分布状况,在平江县设置406个采样点,测定耕层(0~20 cm)土壤有效铁、有效锰、有效铜、有效锌、有效硼、有效钼含量,为当地实行测土配方施肥提供科学依据。结果表明,全县土壤中有效铁、有效铜、有效锌含量丰富且分布较均匀,较丰富以上水平的样本均占比95%以上,全县不缺乏耕地占比99%以上;有效锰、有效钼含量整体丰富,较丰富以上水平的样本占比分别为66.75%,79.50%,但分布不均,缺乏耕地面积占比4.60%,19.90%;有效硼整体缺乏,样本缺乏和极缺乏水平占比为76.35%,缺乏耕地面积占比为81.80%。因此,当地应适当减少含铁、铜、锌的肥料及农用化学物品的施用,增加硼肥施用,合理施用锰、钼肥。In order to investigate the abundance and deficiency levels and distribution of trace elements in cultivated soil in Pingjiang County,Hunan Province,406 sampling sites were set in Pingjiang County to determine the contents of available iron,available manganese,available copper,available zinc,available boron and available molybdenum in the tilth(0-20 cm),so as to provide scientific basis for the implementation of soil testing and formulated fertilization.Results showed that the contents of available iron,available copper and available zinc in the soil of the county were abundant and evenly distributed,relatively rich above samples were accounted for more than 95%,the county was not a lack of arable land accounted for more than 99%;the contents of available manganese and available molybdenum were abundant on the whole,relatively rich above samples accounted for 66.75%,79.50%respectively,but uneven distribution,the lack of tilth accounted for 4.60%,19.90%;the available boron was deficient on the whole,and the proportion of deficient and extremely deficient samples was 76.35,and the lack of tilth accounted for 81.80%.Therefore,the application of fertilizers and agricultural chemicals containing iron,copper and zinc should be appropriately reduced,and the application of boron fertilizer should be increased,and the application of manganese and molybdenum fertilizer should be rational.

关 键 词：土壤 有效微量元素 平江县 丰缺水平 施肥 

分 类 号：S158.2[农业科学—土壤学]