扬州大学学报（农业与生命科学版）2023，Vol.44Issue(6)：47-55,9.DOI:10.16872/j.cnki.1671-4652.2023.06.006
靖西市植烟区土壤微量营养元素空间分布特征及影响因子分析
Spatial distribution characteristics and influencing factors of soil micronutrient elements in tobacco-growing area of Jingxi City
摘要
Abstract
The present paper aimed to investigate the spatial distribution characteristics of soil micronutrients and their influ-encing factors in bacco-growing area of Jingxi City,and to provide scientific basis for soil improvement and nutrient management decisions of flue-cured tobacco intobacco-growing area of Jingxi City.In 2021,71 soil samples were collected from tobacco planting areas in Jingxi City,and analyzed by multivariate statistical and geostatistical methods.The results showed that the average contents of available boron(B),available zinc(Zn),available iron(Fe),available manganese(Mn),availa-ble copper(Cu)and available molybdenum(Mo)in the tobacco area of Jingxi City were 0.32,8.11,228.01,14.99,7.96 and 0.01 mg·kg-1,respectively.The block base ratio of all trace elements ranged from 0.11％to 29.7％.The spatial distribution characteristics of soil available boron and manganese contents were affected by structural factors,and the contents of available Fe and Zn were affected by structural factors and random factors.The content of available B,available Zn and available Mn in soil showed a spatial aggregation state,while the content of available Fe showed a stochastic state.Available B content was lower in the north and higher in the southeast,available Zn content was higher in the west and lower in the east,and available Fe and Mn content was higher in the northeast and lower in the southwest.Soil mi-cronutrient content was affected by soil pH,available sulfur(S),available potassium(K),available phosphorus(P)and exchangeable calcium(Ca).In conclusion,according to the spatial distribution characteristics of each element,the re-searched areas should reduce the application of Zn,Fe and Cu trace element fertilizer,and appropriately increase the ap-plication of B and Mo fertilizer,reasonable application of macronutrients.关键词
烟草/土壤/微量营养元素/空间分布/影响因子Key words
tobacco/soil/micronutrient elements/spatial distribution/influence factors分类
农业科技引用本文复制引用
罗源群,贾海江,范晓苏,石保峰,周权能,韦建玉,顾明华,沈方科,梁琼月..靖西市植烟区土壤微量营养元素空间分布特征及影响因子分析[J].扬州大学学报（农业与生命科学版）,2023,44(6):47-55,9.基金项目
广西中烟工业有限公司科技项目(2021450000340040) （2021450000340040）
广西重点研发计划项目(桂科AB16380160) （桂科AB16380160）
