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云杉与落叶松幼苗期,需要有一定的遮阴条件,在阳光照射的条件下,幼苗易罹日灼之害.许多专家学者和从事育苗实践的同志,对此已有所研究.为了探索引起日灼害的原因及防除方法,兹将在生产实践中,初步观测的资料介绍于下.这些资料,除幼苗生长观测资料系近期观测(培养基为珍珠岩和锯木屑)的外,其余是1959年及1962年先后在乌南小渠子苗圃(跋高1754米)和哈密门子苗圃(跋高2130米)观测的.由于我们水平有限,错误在所难免,希望批评指正.
Spruce and larch seedlings, the need for a certain shade conditions, under sun exposure, the seedlings susceptible to the sunburn damage many experts and scholars engaged in nursery practice, which have been studied in order to explore The causes of the sunburn and the methods for their prevention and control are hereby given in the course of production and the data of the initial observations are introduced below. These data, except that the observation data of seedling growth have been recently observed (culture medium is perlite and sawdust) It was observed in 1959 and 1962 in Wunan small channel nursery (1754 meters high) and Hammer Gate nursery (2130 meters high), and because of our limited level, mistakes are inevitable and we hope to criticize and correct them.