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毛白杨是我国华北地区主要速生、优质用材树种之一。良种壮苗是造林的基础,如何培育毛白杨壮苗,已成为当前亟待解决的一项任务。国内研究毛白杨育苗的地区和单位很多,但对其施肥量和苗期生物量的系统研究还不多。为此,进行了不同施肥量对毛白杨苗木生长影响的试验,以便探求培育毛白杨壮苗的最佳施肥量与其生物最之间的相关关系。现将试验结果整理如下。
Populus tomentosa is one of the main fast-growing and high-quality timber species in North China. Seedling seedling is the foundation of afforestation, how to cultivate young seedlings of poplar, has become a task to be solved. There are a lot of areas and units for domestic poplar cultivation, but there are not many systematic studies on the amount of fertilizer and seedling biomass. Therefore, the effects of different fertilizers on the growth of Populus tomentosa seedlings were studied in order to find out the best relationship between the optimum fertilizers and their biological characteristics. The test results are summarized below.