Effects of N,P,K application and their optimum fertilization parameters for Sinocalamue oldhami in alluvion soil area

According to mixed design method,assisted by minor element and growth regulator,the fertilizer experiments of N,P and K are conducted for Sinocalamue oldhami planted in alluvion soil area,the mathematical reflecting models of prescription of fertilization for Sinocalamue oldhami planted in alluvion soil area and economic benefit are established,and the optimum fertilization parameters for Sinocalamue oldhami planted in alluvion soil area are formed by computer simulation and optimization.After applying this compound fertilizer,the economic benefit of Sinocalamue oldhami forest planted in alluvion soil area will increase about 30%.