Can be carried out in the leaves to the freezing front speed cutting Yang Dongji. Selection of robust growth, lignification of axillary buds, intact branches as cuttings, about 15 cm long, soak in water for 3 to 5 days, the cuttings to absorb enough water. Before cuttingdeep plowing land, apply sufficient base fertilizer, cutting line spacing of 50 cm, 30 cm spacing in the rows inserted about 4400 plants per mu. After cutting the watered well.

冬季扦插的速生楊，地溫在5℃以上就能生根，春季插穗萌動前已長出幼根。一般冬季扦插的苗木萌動期、速生期均比春季扦插的提早20天。

Winter cuttings of poplar, the temperature will be able to take root in more than 5 DEG C,the spring before germinating cuttings has long roots. General winter cutting seedlinggermination stage, fast-growing stage than cutting the spring 20 days earlier

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