Effect of Different Soil Types and Grow th Stage on Number of Microorganisms in Rhizosphere of Wheat
XU Rui-fu
LU Ning-hai
YANG Rui
ZHAI Feng-yan
Abstract：To explore the effect of different soil types and growth stage on the number of microor-ganisms in wheat rhizosphere ,microorganisms in wheat rhizosphere were isolated from different soil types at different growth stage ,and the changes of their quantities were studied .The results showed that the number of microorganisms in wheat rhizosphere was affected by soil types at all w heat grow th stage ,and decreased with the decrease of soil organic matter content ,in w hich the number of fungi and bacteria decreased significantly .With the advance of w heat grow th period , the number of fungi and bacteria in the red clay ,loam ,sandy loam increased from jointing to fill-ing stage ,up to the maximum at filling stage ,and then decreased with the gradual maturation of wheat .The number of actinomycetes in red clay had the same trend as fungi and bacteria ,and de-creasing-increasing-decreasing trend in loam ,also up to the maximum at filling stage ,with an in-creasing trend in the sandy loam from jointing to heading stage ,then beginning to stabilize .
Keywords：wheat rhizospheregrowth stagesoil typemicroorganisms
Publication Date：2013-12-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：4( 75-78 )