作物研究2016，Vol.30Issue(2)：136-141,6.DOI:10.16848/j.cnki.issn.1001-5280.2016.02.08
云南省罗平烟区植烟土壤 pH 分布特征及其与土壤养分的相关性
Soil pH Value Distribution and Its Correlation with Nutrients in Luoping Tobacco Growing Area of Yunnan Province
摘要
Abstract
In order to understand the space distribution character of soil pH and the relation between soil pH and nutrients in Luoping tobacco growing area.soil samples were collected and analyzed based on classical statistics and geo-statistics The results were follows:(1)The pH of Luoping tobacco planting soil was generally suitable for tobacco cultivation,with a mean of 6.55 and amplitude of 4.16 ~8.06.About 65.36% of the soil samples had pH between 5.0-7.0 most suitable for high quality tobacco cultivation.(2)The optimum pH of Luoping tobacco planting areas were mainly concentrated in the western and northern and southern minority regions and alkaline soil was mainly concentrated in the central,eastern and southern minority areas.(3)The pH of different soil types was in the following order:new alluvial soil >yellow soil >pad-dy soil >red soil >purple soil;the pH of different previous crops was in the following order:Ginger >canola >wheat >Idle>barley >green manure;pH values decreased as altitude increased.(4)The soil organic matter and total nitrogen were high and total potassium content was low,the other nutrient content were appropriated;There were a highly significant posi-tive correlation between soil pH and total N,available P,available K,available Ca,available Mg,available Zn and a signifi-cantly positive correlation to water soluble Cl.However there were highly significant negative correlation between soil pH and available Fe,available Mn,available S in Luoping Tobacco-growing areas.(5)Significant difference existed among dif-ferent pH groups for the contents of total P,available P,available K,available Ca,available Fe,available S and other soil nutrient differences were not obvious.关键词
植烟土壤/pH/土壤养分/相关性分析/罗平烟区Key words
tobacco planting soil/pH/soil nutrient/correlation/Luoping tobacco-growing area分类
农业科技引用本文复制引用
贺丹锋,周冀衡,张毅,刘晓颖,柳立,张纪利,罗先学..云南省罗平烟区植烟土壤 pH 分布特征及其与土壤养分的相关性[J].作物研究,2016,30(2):136-141,6.基金项目
广西中烟工业有限责任公司科技项目。 （）
