Effects of Soil Moisture Regulation on Growth and Dry Matter Accumulation and Nutrient Absorption of Flue-cured Tobacco
ZHOU Yong-bo
SHAO Xiao-hou
SU Xian-kun
YUAN You-bo
DAI Li-dan
WANG Yu
Abstract：A rain-proof experiment was conducted to study the effects on form and dry matter accumulation and nutrient absorption of flue-cured tobacco by controlling the water at different growth periods.The results indicated that the soil moisture lower limit maintains separately in 60%、80%、70% may guarantee the normal growth of flue-cured tobacco during different growth periods,if the soil water content was lower than 45% in root spreading stage and lower than 65% in vigorous growing stage,the height,the stem surrounds and the leaf area would be influenced remarkably,it would be more advantageous to yield to increase the supply of water in vigorous growing stage; the moisture regulation influenced the dry matter accumulation of the root and the leaf remarkably; the concentration of K was the most,and then the N,the concentration of P was the least in all the moisture content regulations.The content of N,P and K at the root and the stem increased significantly in the maturing stage by moisture regulation,there are not obvious rules in other stages.
Keywords：moisture regulationagronomic characterdry matter accumulationnutrient absorptiongrowth period
Publication Date：2010-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：4( 56-59 )