扬州大学学报（农业与生命科学版）2025，Vol.46Issue(3)：132-138,7.DOI:10.16872/j.cnki.1671-4652.2025.03.015
不同暗棕壤亚类剖面肥力分布特征比较
Comparative of fertility distribution characteristics in different subgroup of dark brown soil profiles
摘要
Abstract
A study was conducted on the fertility status and differences of different subgroup of dark brown soil profiles to provide a theoretical basis for rational development,utilization,and agricultural management.Based on the third na-tional soil survey in Dongliao County,Jilin Province,this study investigated representative subgroup of dark brown soil in Dongliao County,collected profile soil samples according to the occurrence layer,and studied the fertility characteristics of different sub classes of dark brown soil profiles and the reasons for their differences.The results showed that the fertil-ity of white slurried dark brown soil was the highest,followed by typical dark brown soil,and the nutrient status of weakly developed dark brown soil was poor.Due to the influence of soil formation conditions and human factors,the soil organic matter,alkaline hydrolyzable nitrogen,available phosphorus,and available potassium in different subgroup of dark brown soil profiles showed a gradually decreasing trend from the surface downwards,while trace elements such as available sulfur and available zinc gradually increaed from the surface downwards.The study indicated that in the utiliza-tion of different subgroup of dark brown soil,it was necessary to pay attention to balanced fertilization according to crop needs,especially the supplementation of medium and trace elements.In the utilization of weakly developed dark brown soil,it was necessary to strengthen organic fertilization and prevent soil erosion.关键词
暗棕壤/亚类/土壤剖面/土壤发生层/肥力Key words
dark brown soil/subgroup/soil profile/soil horizons/fertility分类
农业科技引用本文复制引用
申凯宏,姜卓琳,张君,杨倩,赵雍容,赵培翔,古建娣,耿玉辉..不同暗棕壤亚类剖面肥力分布特征比较[J].扬州大学学报（农业与生命科学版）,2025,46(3):132-138,7.基金项目
国家科技基础资源调查专项(2021FY100403) （2021FY100403）
吉林省重大科技专项(20220302005NC) （20220302005NC）
