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在广东省阳西县开展赤桉和尾叶桉接种 1 0个外生菌根菌的野外试验 ,根据造林后对树高、地径和胸径的观测 ,发现菌根菌与树种间存在互作效应 ,这种效应影响菌根菌接种效果 ;试验筛选出的菌株 :H4461 ,适于尾叶桉 ,树高增加 2 %～ 2 1 % ,胸径增加 1 3 %～ 3 5% ,对赤桉树高生长也有促进作用 ;H43 3 9,对赤桉 1年生内幼树树高生长有显著促进作用 ,也改善径生长 ,也适用于尾叶桉 ;H41 1 1 ,对赤桉、尾叶桉的后期生长有效果 ;E41 0 0、H43 3 1、H43 3 8和H43 1 7,有时对参试树种生长有改善作用 ;其它参试菌根菌E40 70 ,H493 7,H43 1 4,在两树种间表现极不稳定。
In the field experiment of 10 ectomycorrhizal inoculation of Eucalyptus urophylla and Eucalyptus urophylla in Yangxi County, Guangdong Province, field experiments were conducted to observe the tree height, diameter and DBH. The interaction between mycorrhizal fungi and tree species was found Effect of this effect on mycorrhizal inoculation effect; test selected strain: H4461, suitable for Eucalyptus urophylla, tree height increased by 2% ~ 21%, DBH increased 13% ~ 35% H43 3 9, which significantly promoted the height growth of 1-year-old saplings of Eucalyptus globulus and also improved the growth of pathways and also applied to Eucalyptus urophylla; H41 1 1, The growth of the tested species was sometimes improved. E41 0 0, H43 3 1, H43 3 8 and H43 1 7 could sometimes improve the growth of the tested species. Other tested mycorrhizal fungi, such as E40 70, H493 7 and H43 1 4, Very unstable performance.