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我们由1982年秋季特殊干旱的情况下开始,直到1984年春,为了尽快地营造好“三北”防护林和其他林种,在怀德县秦家屯乡杨树林村等处,试验与推广了苗木顶浆造林和水浸苗根造林等抗旱造林试验。现初步总结如下。一、顶浆造林正常年,我县的土地开春后都有一个返浆期。处于返浆期的苗木,含水量高,就干旱的83年春季,尚占条重的35—40％,占母根重的40—50％。如能抓住时机,即表土化冻到20厘米深处,做到顶浆起苗,顶浆栽,随起随栽,就可以使苗木少失水,抢住墒,缩短恢复
We began with the special drought in the autumn of 1982 until the spring of 1984, in order to create “Three Norths” shelterbelts and other forest types as soon as possible and tested and popularized seedlings at Yangshulin Village, Qinjiatun Township, Drought afforestation experiments such as achiving afforestation and watermelon seedling root afforestation. Now preliminary summary is as follows. First, achillment normal years, my county’s land after the spring have a return period. Seedlings in the re-pulp stage, high water content, drought in the 83 spring, still accounted for 35-40% of the weight, accounting for 40-50% of the parent weight. If you can seize the opportunity, that is, the surface of the soil to a depth of 20 cm, so apophysis from the seedling, apron planted with the planted, you can make seedling water loss, grab moisture, shorten the recovery