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为提高苗木质量,笔者于2006年～2007年连续2年对青海省贵德县岗拉苗圃进行青杨密度试验。结果表明,合理的育苗密度是提高苗木质量、提高经济效益的重要因素。
In order to improve the quality of nursery stock, the author in 2006 to 2007 for two consecutive years in Gude County, Qinghai Province Gangla nursery for the poplar density test. The results showed that reasonable seedling density is an important factor to improve seedling quality and improve economic efficiency.