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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、烂皮病等的危害明显降低
Qingyang is the main tree species in Qinghai Province to build mountain farmland forest network. In order to improve the survival rate and preservation rate of afforestation. In 1999, when the spring drought was severe, we conducted crown cutting of Populus trilobata cuttings in Tangba Village and Ashi Ke Village of Taizi Township. The ABT rooting powder treatment was used to create a mountainous farmland forest net test. The results showed that this afforestation method ratio The conventional method of afforestation increased the survival rate by 31.2%, the growth of nursery stock rhizome increased by 0.626 cm, the mean annual growth increased by 5 2 4 cm, the new root length increased by 12 9 cm, and the average root weight per plant increased by 5 g. The harm of dermatosis is obviously reduced