摘要
研究了7种施磷肥(P2O5 12%的过磷酸钙)量(0~0.750 g·盆-1)对1年生木犀Osmanthus fragrans苗生长的影响。结果表明:施磷量和木犀苗木的生长、生理指标密切相关;施磷量在0~0.375 g·盆-1时,苗高、地径、叶面积、各部位生物量、叶绿素等方面均随施磷量的增加而增加,当施磷量超过0.375 g·盆-1时,上述指标均呈现下降趋势;木犀苗木的各项指标与磷肥用量之间存在二次函数关系,计算得出1年生木犀苗木的最佳磷肥施用量为0.28~0.46 g·盆-1。
The growth of One year-old seedlings of Osmanthus fragrans was affected by seven levels of phosphorus fertilizer treatment. Results of the research indicated that：（1） the growth and physiological indexes were closely related to the application amount of phosphorus fertilizer.（2）The amount of phosphorus was gradually increased among the range of 0-0.375g/ pot, with which the seedling height, the ground diameter, the leaf area, the biomass and the chlorophyll of seedlings were increased accordingly, when the amount of phosphorus used exceeded the 0.375g/ pot, the indicators aboved tended to fall. According to the twice functional relationship between indicators researched and the application quantity,the appropriate amount of phosphorus fertilizer was 0. 28-0. 46g /pot for one year-old Osmanthus fragrans seedling.
出处
《浙江林业科技》
北大核心
2017年第5期74-77,共4页
Journal of Zhejiang Forestry Science and Technology
关键词
木犀
施肥
磷
生理特性
回归方程
Osmanthus fragrans
fertilization
phosphorus
physiological property
regression equation
