青杨扦插苗截冠去根、ABT生根粉处理营造山地农田林网试验

Report on Crown and Root Cutting off Populus Cathayana, taking ABT Treatment,Plant Farmland Forest network Experiment

青杨是青海省营造山地农田林网的主要树种。为提高造林成活率和保存率。 1999年春旱严重的情况下 ,我们在台子乡塘巴村和阿士记村进行了青杨扦插苗截冠去根、ABT生根粉处理营造山地农田林网试验 ,结果表明 ,这种造林方法比常规造林方法成活率提高 31 2 % ,苗木根茎生长量提高 0 6 2cm ,当年平均高生长量提高 5 2 4cm ,新生根长度增加 12 9cm ,单株平均根重增加 5g ,苗木根腐病。

Populus cathayana is the main species to plant farmland forest net work in Qinghai province hill .To raise sunival rate and persevival rate of afforestation,we carried out the experiment in Tangba and Ashiji village in TaiZi Township in 1999.Though spring drough was severe it proved that the survival rate increased 31.2% by means of cutting off the crown and roots of Populus cathayana than by conventional method.The average growth height in the same year raised 50.4cm,length of new roots 12.9cm,average roots weight of each plant increased 5g.Harmfulness of root rot and canker were reduced clearly