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Change regulation of nutrient contents in Camellia oleifera forest soil

WANG Yu-juan,HE Xiao-san,GONG Chun,LEI Xiao-lin,XU Lin-chu(Jiangxi Academy of Forestry,Nanchang 330032,Jiangxi,China)  
In order to provide scientific basis for management of fertilization in Camellia oleifera forest soil,change regulation of nutrient contents in different soil layers with forest age was obtained through determining and analyzing nutrient contents in C.oleifera forest soil.In 0~20 cm soil layer,changes of organic matter,hydrolysable N,total N and total K contents showed increasing tendencies,but changes of available P and available K contents were on the contrary,and total P content had little change.In 20~40 cm soil layer,changes of organic matter,hydrolysable N,total K and available P contents showed increasing tendencies,but change of total N content was on the contrary,and total P and available K contents had little change.In 0~40 cm soil layer,changes of organic matter,hydrolysable N,available P and available K contents had decreasing tendencies,and changes of total N,total P and total K contents were on the contrary.
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