“根宝”对提高樟子松造林成活率的研究

本文报道了“根宝 2号”对提高樟子松成活率的研究结果。为探索在黄土丘陵、干旱阳坡提高樟子松造林成活率的新途径 ,1 991年春用“根宝 2号”对樟子松苗木进行浸根造林 ,并以我区推广多年的常规适用抗旱造林技术为对照 ,同年 6月 1 5日和 1 0月 2 2日对造林效果分别进行了两次调查 ,结果表明 ,用“根宝 2号”浸根比常规抗旱造林技术提高造林成活率 1 0 % ,初期生长量提高5 5 1 6%。

A Study of Ratising the Survial Rate of Paylvestris var.mongolica Litv.Afforestation by Genbao

The result for raising the survial of P.sylvestris var.mongolica Litv.is reported by this character.For probing new methods of increasing the survial rate of P.sylvestris in the hill-country and troughty rolling land facing south,GENBAO 2 # was used for P.sylvestris afforested in spring 1991 and was contrasted with the common drought-resistant afforestation methods which are used in past years.The effects investigated on June 15 and October 22 respectively,and the results showed that the survial rate and the early growth of P.sylvestris were raised by 10% and 55 16% separately used for GENBAO 2 # to soak roots then the other methods.