| 引用本文: | 罗仙英, 莫荣海, 丁贵杰, 陈 龙.不同配比施肥对马尾松幼苗生长特征的影响[J].广西植物,2022,42(4):608-616.[点击复制] |
| LUO Xianying, MO Ronghai, DING Guijie, CHEN Long.Effects of different fertilization ratios on growth characteristics of Pinus massoniana seedlings[J].Guihaia,2022,42(4):608-616.[点击复制] |
|
| |
|
|
| 本文已被：浏览 4634次 下载 1433次 |
码上扫一扫！ |
|
|
| 不同配比施肥对马尾松幼苗生长特征的影响 |
|
罗仙英1, 莫荣海1, 丁贵杰1,2*, 陈 龙1
|
|
1. 贵州大学贵州省森林资源与环境研究中心/贵州大学林学院, 贵阳 550025;2. 贵州省高原山地林木培育重点实验室, 贵阳 550025
|
|
| 摘要: |
| 为获得马尾松幼苗最佳施肥配方,该文以1年生马尾松幼苗为试验材料,采用L16(43)正交设计,并通过测定幼苗苗高、地径、生物量、叶绿素含量、叶片N、P、K含量,探讨不同N、P、K配比施肥对马尾松幼苗生长特征影响。结果表明:(1)不同配比施肥处理间马尾松幼苗苗高、地径、生物量、质量指数、叶绿素和养分含量存在显著差异,其中,处理12生物量、质量指数、叶绿素a和总叶绿素含量、隶属值最高。(2)施N对幼苗生长及生理指标均有极显著影响; 施K对苗高、地径、地上生物量、总生物量有显著影响,对叶绿素和针叶养分有极显著影响; 施P对叶绿素a、叶绿素b、针叶N和P含量有极显著影响,对苗高、地下生物量、总叶绿素含量有显著影响。(3)施N对苗高、地径、地上生物量、总生物量、质量指数、叶绿素a含量、总叶绿素含量和针叶N含量的影响最大,K次之,P最小。各因素对地下生物量和针叶P含量的影响均表现为N>P>K。(4)N3水平利于幼苗苗高地径的生长及生物量的积累,N4水平利于叶绿素a和总叶绿素含量及针叶N、P含量的积累,P4水平利于生物量、叶绿素含量和养分P含量的积累。综合分析可知,马尾松幼苗前期应以施N为主,配施P和K相辅,配施N3P4K2营养液利于提升幼苗综合质量,即N、P、K浓度分别8.25、1.00、1.50 mmol·L-1。 |
| 关键词: 马尾松, 幼苗, 配比施肥, 生长, 苗木质量 |
| DOI：10.11931/guihaia.gxzw202103052 |
| 分类号:Q945; S72 |
| 文章编号:1000-3142(2022)04-0608-09 |
| 基金项目:国家“十三五”重点研发项目(2017YFD0600302); 贵州省国家后补助课题(黔科合平台人才 [2018]5261)[Supported by National Key Research and Development Program of China(2017YFD0600302); Science and Technology Planning Project of Guizhou Province, China([2018]5261)]。 |
|
| Effects of different fertilization ratios on growth characteristics of Pinus massoniana seedlings |
|
LUO Xianying1, MO Ronghai1, DING Guijie1,2*, CHEN Long1
|
|
1. Institute for Forest Resources and Environment of Guizhou/College of Forest, Guizhou University, Guiyang 550025, China;2. Key Laboratory of Forest Cultivation in Plateau Mountain of Guizhou Province, Guiyang 550025, China
1. Institute for Forest Resources and Environment of Guizhou/College of Forest, Guizhou University, Guiyang 550025, China;
2. Key Laboratory of Forest Cultivation in Plateau Mountain of Guizhou Province, Guiyang 550025, China
|
| Abstract: |
| In order to obtain the optimal fertilization formula for Pinus massoniana seedlings, one-year-old seedlings were selected and grown in a L16(43)orthogonal design. Traits, such as seedling height, ground diameter, biomass, leaf chlorophyll contents and N, P, K contents, were measured to explore the effects of different N, P, K fertilization ratios on growth characteristics. The results were as follows:(1)There were significant differences in seedling height, ground diameter, biomass, quality index, chlorophyll and nutrient contents among different fertilization ratios treatments. Among them, treatment 12 had the highest biomass, quality index, chlorophyll a and total chlorophyll contents, and membership value.(2)N application had extremely significant effects on growth and physiology; K application had significant effects on seedling height, ground diameter, above-ground biomass, total biomass, and had extremely significant effects on chlorophyll and needle nutrients; Besides, P application had extremely significant effects on chlorophyll a, chlorophyll b, N and P contents in needles, and had significant effects on seedling height, under-ground biomass and total chlorophyll content.(3)N application had greater effect on seedling height, ground diameter, above-ground biomass, total biomass, quality index, chlorophyll a, total chlorophyll and N contents in needles than K and P applications. The effects on under-ground biomass and P contents of needles were as N>P>K.(4)N3 level was beneficial to seedling height, diameter and biomass accumulation. N4 level was beneficial to the accumulation of chlorophyll a and total chlorophyll contents, N and P contents in needles, while P4 level was beneficial to biomass accumulation, chlorophyll and P contents accumulation. Comprehensive analysis showed that N should be applied mainly in the early stage of P. massoniana seedlings, supplemented by P and K. N3P4K2 nutrient solution can improve the overall quality of seedlings, with N, P and K concentrations as 8.25, 1.00 and 1.50 mmol·L-1, respectively. |
| Key words: Pinus massoniana, seedling, fertilization ratios, growth, seedling quality |
|
|
|
|
|
