Abundance or Lack and Comprehensive Evaluation of Essential Nutrient in Yellow Soil of Liangshan Tobacco Planting Area
Yan Kailong
Wang Wenliang
Zhang Mengchu
Wang Xun
Zhu Bo
Wang Peng
Zhao Yanmin
Yu Jianjun
Abstract：Based on the investigation of yellow soil fertility in Liangshan tobacco planting area , a com-prehensive evaluation system was established by fuzzy mathematics and partial correlation analysis , and the a-bundance or lack and distribution situations of each nutrient index were analyzed .The results showed that the contents of organic matter , rapid available phosphorus , exchangeable calcium and magnesium were abundant ;the content of rapid available potassium was medium;but the available nitrogen content was lower .The pH value of soil showed subacid and the texture was partial viscous .The soil fertility was classified into 5 groups of high ,rel-atively high, medium, relatively low and low based on the IFI value .The soil whose fertility was medium and a-bove occupied 82.27%.Above all , the yellow soil of Liangshan tobacco planting area showed higher compre -hensive nutrient index on the whole with the change range of 0.3274~1.0000 and the average value of 0.7417.
Keywords：Tobacco planting soilEssential nutrientAbundance or lackComprehensive evaluation
Publication Date：2014-07-02
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：7( 82-87,90 )