Effects of Application Method and Stage of Magnesium Fertilizer on Magnesium Content and Yield and Quality of Flue-cured Tobacco
GAO Huajun
LIN Beisen
YANG Xiaomei
WANG Junwei
HUANG Chunyan
LIU Chunping
LIU Xiangbiao
Abstract：In order to explore the agricultural measures for increasing the magnesium content of flue-cured tobacco ,the effects of different methods and stage of magnesium fertilizer application on magnesium content and yield and quality of flue-cured tobacco were studied by field experi-ments .The results showed that application of base magnesium fertilizer and topdressing (treat-ment of T3-T5) could increase the content of exchangeable magnesium in tobacco-planting soils at the middle growing stage and increase the magnesium content in tobacco leaves .The application of base magnesium fertilizer and topdressing 15-20 days after transplanting (T4) increased the magnesium content by 12 .68% and improved the agronomical characters of tobacco significantly . Compared with one-time topdressing (CK ) and T2 treatment (base magnesium fertilizer ) ,the economic characters of T3 treatment (base magnesium fertilizer and topdressing when transplan-ting ) were higher ,with an increase of yield and production value by 19 .31% and 23 .90% ,respec-tively .In addition ,the application of base magnesium fertilizer and topdressing (treatment of T3-T5) could also maintain better chemical components and smoking quality in lower and middle leaves of flue-cured tobacco .T herefore ,the treatment of base magnesium fertilizer and topdressing after transplanting was appropriate for flue-cured tobacco in Baise tobacco-planting area .
Keywords：flue-cured tobaccomagnesium fertilizerapplication methodapplication stageyieldquality
Publication Date：2013-10-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：5( 36-40 )