土壤2025，Vol.57Issue(4)：744-749,6.DOI:10.13758/j.cnki.tr.2025.04.003
枸溶性钾肥部分替代硫酸钾对抚仙湖流域烤烟生长和提钾的影响
Effect of Partial Substitution of Potassium Sulfate with Citrate Soluble Potassium Fertilizer on Growth and Potassium Increase of Tobacco in Fuxian Lake Basin
摘要
Abstract
This study aims to explore the effect of partially substitution potassium sulfate with citrate soluble potassium fertilizer(citrate-K)and one-time root zone application on the growth and potassium increase of tobacco.The local conventional fertilizers were applied by surface spreading as the control,1/4 and 1/2 of total potassium substituted with citrate-K were set in the experiment.The types of fertilizers include local conventional fertilizer and high potassium special fertilizer for tobacco(both supply potassium in the form of potassium sulfate).The results showed that partial substitution of potassium sulfate with citrate-K significantly increased the proportion of high grade tobacco leaves.When 1/2 of potassium substituted,the application of high potassium special fertilizer significantly increased the yield,value,and proportion of high grade tobacco leaves by 11.9%,9.9%and 5.6%,respectively,and decreased the proportion of low grade tobacco leaves by 77.7%,compared with those of conventional fertilizer.The one-time root-zone application of high potassium special fertilizer with 1/2 of potassium substituted by citrate-K also had a certain improvement effect on the agronomic traits of tobacco at different growth stages,which was much better than other treatments by the comparison the comprehensive effect through principal component analysis.This study indicates that one-time root-zone application of high potassium special fertilizer with 1/2 of potassium substituted by citrate-K could be recommended for light and simplified fertilization for higher yield and quality of tobacco leaves.关键词
烤烟/枸溶性钾肥/根区一次施肥/钾含量Key words
Tobacco/Citrate soluble potassium fertilizer/One-time root zone fertilization/Potassium content分类
农业科技引用本文复制引用
陆欣远,周健民,徐勇贤,陈小琴,李冬雪,王一柳,陈志青,钱玭,王火焰,卢殿君..枸溶性钾肥部分替代硫酸钾对抚仙湖流域烤烟生长和提钾的影响[J].土壤,2025,57(4):744-749,6.基金项目
云南省烟草公司玉溪市公司科技计划项目(yxyc2023010)资助. （yxyc2023010）
