【精品】专业论文文献 -不同施肥量对07628杂交杨生长影响的研究.doc

不同施肥量对07628杂交杨生长影响的研究
不同施肥量对07628杂交杨生长影响的研究
摘要:本研究对1年生07628杂交杨施肥试验,对其地径、苗高进行了测定与分析,结果表明:4种不同施肥量和对照(不施肥)共5个处理,施肥对树高生长明显,并且在处理三(100g/株)时07628杂交杨地径达到最大值,生长影响明显。
关键词:不同施肥量;07628杂交杨;生长影响
Study on growth of the Influence of Hybrid Populus 07628 Different Fertilization Coditions
Abstract: 1-year-old hybrid Populus 07628 is choosed in fertilization experiment, Their diameter and height were measured and analysised,The results show that:4 different fertilization and the control (no fertilizer)is a total of five processing, fertilizer than non-fertilization of high-growth trees Obviously,there is Obviously high-growth trees after Fertilization, And inthe third measure(100 g / line), 07628 hybrid Populus reached the maximum diameter,it was outstanding effect in growth.
Key words: Different Fertilization Coditions; hybrid Populus 07628; Influence of the growth
中图分类号: S731文献标识码:A文章编码:

07628杂交杨(populus jvtyschsis07628)是系欧洲黑杨天然杂交种,该品种为雄株,树皮绿白色,树干通直圆满,皮细有纵向灰褐条纹,分布较密,树冠长卵呈塔形,窄冠,侧枝向上直立,树形优美,叶三角形,叶缘波状,叶尖极尖,叶背缘白色,叶面绿色,叶柄扁平,主梢优势明显,叶片平展,着生方式特殊,在生长期叶片直立,紧贴主梢干部和侧枝,能充分利用光照,是其它杨树中少见的特征。苗期生长力超过生产推广种群众杨,表现速生特征,高生长速生期为七月初至八月底,生长量占全年80%,生长初期和生长后期为四月二十日至六月十日和七月初至九月底,生长量分别占全年70%,生长初期和生长后期分别为四月二十日至六月一日和九月一日至九月底,生长量分别占20%和10%,其经过七六年二月极值低温-℃,七九年冬至八零年初的冻害检验,07628杂交杨表现出苗期幼树极强的抗寒能力。经过综合评定,其是窄冠、通直、生长强、抗寒力好品种(系)综合评定性状明显优于新疆推广的群众杨、小意杨、白绒杨等,经栽培试验结果表明,其树高和胸径均超小意杨40%以上,表现出生长适应广,生长强。随着杨树人工林种植面积的扩