The characteristics of soil total phosphorus(P)

available P

different chemical form of inorganic P were studied in rhizosphere and non-rhizoshpere soil that was collected from Shimen

Linli

Taoyuan and Changsha area in tea plantation.The results showed the content of total P and available P were higher in rhizosphere soil than non-rhizosphere soil

and the apperent enrichment of available P was observed

while the difference was greater in the content of inorganic P

the ratio of available P to total P in tea plantation soil.In the rhizosphere soils derived from plate shale

the content of Al-P was the highest

Fe-P second and O-P was the least;in rhizosphere soils derived from granite and quaternary red clay

the content of Fe-P was the highest

Al-P second and O-P was the least.In all three types of non-rhizosphere soil the content of Fe-P was the highest.The correlation between Al-P

Fe-P

Ca-P of inorganic P in rhizosphere soil and the available P was extremely positive significant

but between Al-P

Fe-P in non-rhizosphere soil and the available P was positive significant.The P and the available P got no significant correlation with pH value in both rhizosphere and non-rhizosphere soils while the available P had significant correlation with the total P.