施肥是促使杉木幼林提早郁闭,达到速生丰产的措施之一。萧山县所前公社山里王大队、余杭县舟枕公社万石大队的实践经验证明,施过肥的杉木幼林,其树高、冠幅、根径都比不施肥的增长一倍。舟枕公社万石大队党支部30多亩试验山,一九七三年春天造林,施过肥,现在一般的高140—150厘 Fertilization is to promote young canyon early canopy closure, fast-growing and yield measures to achieve. Xiaoshan County commune Hill King Brigade, Yuhang County Zhou pillow commune Wan Shili brigade’s practical experience shows that fertilizer over the fir young forest, its tree height, crown width, root growth than non-fertilizer doubled. Pillow Commune million stone brigade Party branch 30 acres of experimental mountain, the spring of 1973 reforestation, fertilizer, and now the general high 140-150 PCT