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意大利杨树,即Ⅰ—214、Ⅰ—72/58,Ⅰ—69/53和63/51杨等,于一九七二年引进我国,次年引入我省,一九七六年由南京林产工业学院和省林科所共同主持,泗阳县林苗圃、睢宁县林科所等单位协作,进行区域性试验,现已获得良好结果,一九七九年经省科委组织鉴定,目前正在我省大力推广。 实践证明,这类杨树具有生长快、抗性强,适合平原地区生长的特点。这组照片就是泗阳引种点的杨树生长情况的掠影。该县106万亩耕地,已有一半农田实现杨树林网化,绿化公路230公里,5年全县共植500万株左右,营造试验林、成片林18600多亩,育苗1240余万株,并先后有全国28个省、市,自治区154个单位引种。 我们要大力推广意大利杨树,
Poplars of Italy, namely Ⅰ-214, Ⅰ-72/58, Ⅰ-69/53 and 63/51, etc., were introduced into our country in 1972 and introduced to our province the following year. In 1976, Industrial College and the Provincial Forestry Branch co-chaired the Siyang County Lin nursery, Suining County Forestry Branch and other units to conduct regional trials, and now has achieved good results, in 1979 by the Provincial Science and Technology Commission identified the organization, is currently being Our province vigorously promote. Practice has proved that this type of poplar has fast growth, resistance, suitable for the growth characteristics of the plains. This group of photos is the introduction point of Siyang Poplar growth in the sketches. The county has 1.06 million mu of arable land. Half of the farmland has been poplarized with poplar trees. The greening road is 230 kilometers long. In the past five years, a total of 5 million trees have been planted in the county, creating a pilot forest with a total area of more than 18,600 mu and more than 12,40,000 nurseries. There have been 28 provinces, municipalities and autonomous regions 154 units introduced. We should vigorously promote poplar in Italy,