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用腐植酸-微量元素液肥在杂交杨和毛白杨育苗苗木上喷施,有明显的促进苗木生长作用,主要是增加了叶面积,促进了叶片的物质积累,从而使单株生物产量增加、使株高和径粗明显增加。
With humic acid - trace element liquid fertilizer in hybrid poplar and Populus seedlings nursery stock spray, there is a clear role in promoting the growth of seedlings, mainly to increase the leaf area and promote the accumulation of material leaves, so that the biological yield per plant increased, so that Plant height and diameter significantly increased.