“大雪压青松,青松挺且直。要知松高洁,待到雪化时。”陈毅元帅是用青松比喻人生,因青松耐寒、抗旱,不怕酷暑,四季长青,有“千年松”之美誉,治沙栽松效果佳,特别是黑松各种优点更属领先。 栽树,人们习惯是挖坑、栽树、填土、锤实、浇水,其实就这样,还是远远不够的,还要注意以下几点:一是挖坑 “Snow pressure pine, pine and straight, to be loose, until when snow.” Marshal Chen Yi is metaphor of life with pine, pine due to cold, drought, are not afraid of heat, Evergreen, “Millennium Song” reputation , Good effect of planting pine planted pine, especially all advantages of black pine are more leading. Planting trees, people are accustomed to digging, planting trees, filling soil, hammer real, watering, in fact, it is not enough, but also pay attention to the following points: First, digging