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选择滇杨大枝扦插造林和滇杨嫩枝育苗造林,从中选择出杨树造林的最佳材料。试验表明,杨树大田造林大枝扦插优于杨树嫩枝育苗造林。
Select the large branch of Yunnan yang yang cuttings afforestation and young branch of yunnan nursery afforestation, choose the best material for poplar afforestation. Experiments show that poplar afforestation big branch cuttings better than poplar shoots afforestation.