The results indicate: effect of N on increment of the leaf,the development of the pseudobulb and the length of leaf was the most significant.

• 试验结果表明:N肥对大花蕙兰叶面积增量、假鳞茎的直径、叶片长度的影响达到极显著差异,对假鳞茎增量也达到显著差异;