沧州市海兴县耕地土壤养分状况分析  

Soil Nutrient Status Analysis of Cultivated Land in Haixing County,Cangzhou City

作　　者：何雅祺 孙国红 张弛 张瑞芳[3] 王红[3] HE Ya-qi;SUN Guo-hong;ZHANG Chi;ZHANG Rui-fang;WANG Hong(College of Resources and Environment Science,Hebei Agricultural University,Baoding 071001,China;Agricultural and Rural Bureau of Haixing County,Cangzhou 061200;Agricultural Engineering Technology Research Center of National North Mountainous Area/Agricultural Technology Innovation Center in Mountainous Areas of Hebei Province/Hebei Mountain Research Institute of Hebei Agricultural University,Baoding 071001,China)

机构地区：[1]河北农业大学资源与环境科学学院,河北保定071001 [2]海兴县农业农村局,河北沧州061200 [3]国家北方山区农业工程技术研究中心/河北省山区农业技术创新中心/河北农业大学河北省山区研究所,河北保定071001

出　　处：《黑龙江农业科学》2021年第9期105-110,共6页Heilongjiang Agricultural Sciences

基　　金：河北省科技厅科技攻关项目(20326417D)。

摘　　要：为科学评价和改良沧州市海兴县耕地土壤,从而指导科学施肥和调整作物布局,2017和2019年在沧州市海兴县8个乡镇进行取土采样,分析比较pH、有机质、全氮、有效磷、速效钾、缓效钾、含盐量等指标,初步研究该地区土壤养分状况。结果表明:海兴县土壤整体偏碱性,3 a内变化不大,2017年pH变异系数为2.68%,2019年为1.69%;有机质、全氮、有效磷、速效钾3 a内含量有所增加,分别增加了20.44%、25.00%、5.19%、21.59%,缓效钾下降5.10%;含盐量2019年比2017年下降了8.36%;海兴县耕地存在不同程度的盐碱化,但并不严重。整体来说,海兴县土壤耕层的有机质、全氮、有效磷、速效钾的含量均不高,耕地土壤质地偏轻,土壤瘠薄,养分不足。建议采用适合本地农业发展的合理经营模式,增强土壤种植承载能力,提高作物产量和品质。For scientific evaluation and improvement of Cangzhou Haixing County farmland soil,so as to guide the scientific fertilizing and adjust the distribution of crops,2017 and 2019 in Haixing County,Cangzhou City eight townships for soil sampling.We analyzed and comparized of pH,organic matter,total N,available P,available K,slowly available potassium and salinity index,and made a preliminary study to the region of soil nutrient status.The results showed that the soil in Haixing County was alkaline on the whole,with little change within 3 years,and the pH variation coefficient in 2017 was 2.68%,compared with 1.69%in 2019;The contents of organic matter,total nitrogen,available phosphorus and rapidly available potassium in 3 years increased by 20.44%,25.00%,5.19%and 21.59%,respectively,while the slow-available potassium decreased by 5.10%.The salt content in 2019 was 8.36 percent lower than that in 2017;There were different degrees of salinization in cultivated land in Haixing County,but it was not serious.On the whole,the contents of organic matter,total nitrogen,available phosphorus and available potassium in the surface soil of Haixing County were not high,and the cultivated soil texture was light,the soil was poor and the nutrients were insufficient.It is suggested to adopt a reasonable management mode suitable for local agricultural development to enhance soil planting carrying capacity and improve crop yield and quality.

关 键 词：海兴县 土壤养分 空间变异 盐碱化 

分 类 号：S15[农业科学—土壤学]