Using quadratic general rotation design approach，set up fertilizer combination fertilization experiment of cacium magnesium phosphate fertilizer，urea，compound fertilizer and boron fertilizer in young Eucalyptus plantation，the result showed that:application of calcium magnesium phosphate fertilizer，urea，compound fertilizer，and boron were significant- ly or very significant promoting effect，and the interaction effect of calcium magnesium phosphate fertilizer and urea，calci- um，magnesium phosphate fertilizer and compound fertilizer was not obvious.However，the interaction eccect were patency between boron fertilizer and calcium magnesium phosphate，compound fetilizer，urea or between urea and compound fertiliz- er;Nutrient elements in order of importance as N>P>K>B，N，P elements in a single application only P2O5 over 52.5 g ?tree -1 ，N more than 46 g?tree -1 obviously promoting effect，white the N，P，K fertilizrs could effective in promoting growth，white appplication of boron fertilizer was meaningful only in the N，P，K fertilizers under the premise of the right a- mount;The optimum fertilizer combination was each tree using 500 g calcium magnesium phosphate，200 g urea，425 g compound fertilizer and 30 g borax（N 160 g，P2O5 143 g，K2O 68 g，CaO 200 g，MgO 60 g，B 4.5 g，total amount of avaitable nutrient was 635.5 g），N∶ P2O5 ∶ K2O∶ CaO∶ MgO∶ B=1.00∶ 0.89∶ 0.43∶ 1.25∶ 0.38∶ 0.03.The theoretical yield 70% of the production possibilities as a target，the use of the fertilization formula.Stands wood volume up to 0.027 8 m3 in 2 years.