Effect of Lime,P,Zn and B Nutrients on Growth of Eucalyptus grandis Seedlings on Latored Surface Soil

In greenhouse, 7 nutrient treatments were conducted on latored soil (Ga) and humus latored soil (Bg), with Eucalyptus grandis Hill ex Maiden.The 7 treatments were CK(no nutrients, control), L(only lime), LP(=L+P), LZn(=L+Zn), LB(=L+B), LPZn(=L+P+Zn) and LPZnB(=L+P+Zn+B).The results showed that there were significant differences in seedlings heights(H), diameter( D0 ) and biomass production between the 7 treatments, and between the interactions of nutrients and soil type.Except(shoot+stem) or root biomass of LZn in Ga soil, and diameter of LZn or LB treatments in Bg soil, there were significant differences in other indexes(H, D0 and biomass) between 6 nutrient treatments and CK.In Ga soil, the H/D0 rates in whole treatments with P nutrient were all less than those of CK treatment;in the opposite, the rates in L, LZn and LB treatments were all more than those of CK treatment.In Bg soil, the H/D0 rates in whole treatments were all less than those of CK treatment.Based on H, D0, biomass above ground, root biomass and total biomass, by the Multiple Objective Strategic Decision Analysis methods, treatments were optimized and ordered from the excellent to the poor:LPZnLPZnBLPLLBLZnCK in Ga soil; LPZnBLPZnLPLLZnLBCK in Bg soil.When using the surface soil to grow Eucalyptus grandis seedlings, it is necessary to apply P, lime, lime+P, lime+P+Zn and/or B to soil.Finally, distribution relationships among different parts of biomass were described in the two types of soils.