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杨树是冬栽好,还是春栽好,认识不一。有的说:“10月栽树树不知,先扎根,后发芽,成活率高,冬季栽树好”。有的说:“冬季栽树天气冷,易冻根,不如春季栽树好”。为了摸索杨树造林的规律,落实伟大领袖毛主席关于“绿化祖国”的教导,我县不少社、队,在1974年10月下旬和11月上旬,大搞了带叶栽植大关杨的试验。为了统一认识,总结经验,全面推广,我们于1975年7月20日对带叶栽大关杨和春季栽大关杨的成活率和新枝生长量进行了调查(见下表)。
Poplar winter planted well, or planted in spring, different understanding. Some said: “I planted tree in October I do not know, the first rooted, germination, high survival rate, winter planting good.” Some said: “Winter planting cold weather, easy to freeze root, as good as spring planting trees.” In order to find out the law of poplar afforestation and implement the teachings of Chairman Mao, the great leader, on “greening the motherland,” many communes and teams in our county carried out a large-scale cultivation of yew with leaves in late October and early November 1974 test. In order to unify understanding, summing up experience, and comprehensive promotion, we conducted a survey on the survival rate and new branch growth of poplar with poplar and poplar in the spring in July 20, 1975 (see table below).