杉木是我国特有的用材树种。生长快、材质好、用途广、产量高,是我国最主要的造林树种,其木材产量约占全国商品材的1/4-1/5,在国民经济中占有重要位置。优质速生杉木丰产林的培育,在立地控制、遗传控制、密度控制的基础上,实行集约经营、定向培育和高效管理的关键之一在于施肥技术。 Chinese fir is a unique timber species. It grows fast, has good material, wide use and high output. It is the most important afforestation species in China. Its timber output accounts for 1 / 4-1 / 5 of the national commodity, occupying an important position in the national economy. Cultivation of high-quality fast growing Chinese fir plantations is one of the keys to intensive management, targeted cultivation and efficient management based on site control, genetic control and density control.