信阳师范学院学报（自然科学版）Issue(3)：351-354,4.DOI:10.3969/j.issn.1003-0972.2014.03.011
邻株低磷竞争处理对杉木幼苗生长的影响
Effect of Competition for Low Phosphorus on Growth of Chinese Fir Seedlings
摘要
Abstract
Objected with Chinese fir planted widely in South China recently , using the sand-culture indoor simula-tion pots supplying with three different P levels , which were 0 mg/kg, 6 mg/kg and 12 mg/kg of KH2 PO4 respectively, a competition between neighbor trees environment for P was constructed .Main results were as follows .The treatment of competition for low P could obviously promote the height growth of seedlings of Chinese fir , but P deficiency under competition stress inhibited the growth .Effects of all treatments with different supplying P levels and whether competi -tion or not on root collar diameter growth of Chinese fir were not significant , but the synergistic effect on the ground di-ameter growth had a certain influence .Increments of all the roots morphological indexes , including length , surface are-a, diameter and volume , were large under competition for low P .关键词
杉木/低磷胁迫/邻株竞争/根系生长Key words
Cunninghamia lanceolata/low phosphorus stress/competition between neighbor trees/roots growth分类
农业科技引用本文复制引用
李琦,吴鹏飞,陈智裕,邹显花..邻株低磷竞争处理对杉木幼苗生长的影响[J].信阳师范学院学报（自然科学版）,2014,(3):351-354,4.基金项目
国家自然科学基金项目（31100472）；教育部高校博士学科专项基金项目（20103515120004）；福建省科技重大专项项目 （）
