该研究通过控制苗木密度,采用截根技术提高苗木粗度和须根数量等配套技术,成功地解决了富根壮苗的技术难关。模拟密度与壮苗产量关系表明,每亩存苗6至8万株时壮苗的产量最高。截根效果显著,使须根数量提高2.7倍,对其他生长影响不显著。92年已通过鉴定,其研究成果“在全国处于领先水平”,建议在生产中大力推广。 The research successfully solved the technical difficulties of Phragmites australis by controlling the density of seedlings, adopting truncation techniques to improve the seedling size and number of fibrous roots and other supporting technologies. The relationship between simulated density and strong seedling yield showed that the yield of strong seedlings was the highest among 6 to 80,000 seedlings per acre. Truncation effect is significant, so that the number of fibrous roots increased by 2.7 times, no significant effect on other growth. 92 years have passed the appraisal, the research results “in the leading position in the country,” proposed in the production to promote.