【摘要】 三倍体山杨最佳造林季节为 4月中间和 9月上旬 ,其成活率分别为 82 %和 89% .三倍体山杨造林密度为株距 1m ,行距 2m ,每穴栽植 2株 .采用营养杯苗和综合性杀菌剂营养液处理过的裸根苗造林 ,其成活率达 84%～ 85 % .更多还原

【Abstract】 The best forestation season of triploid mountain poplar is the middle ten days of April and the first ten day period of September, the survial ratio is 82 percent and 89 percent. Forestation density of triploid mountain poplar were studied,the results showed that the distance between hill is 1m and the distance between rows is 2m, and the transplanting density is 2 plants per hole. Forestation using nutrient cup seedlings and bare-rooted seedlings treating with synthetic bactericide,their survial ration is from 84 percent to 85 percent.更多还原