| 湿地松半同胞家系对轮伐中期追肥的生长响应 |
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| 引用本文： | 郭文冰,赵奋成,钟岁英,邓乐平,谭志强,容仁立,李振,李义良,吴惠姗.湿地松半同胞家系对轮伐中期追肥的生长响应[J].华南农业大学学报,2017,38(1):90-95. |
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| 作者姓名： | 郭文冰 赵奋成 钟岁英 邓乐平 谭志强 容仁立 李振 李义良 吴惠姗 |
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| 作者单位： | 1. 广东省森林培育与保护利用重点实验室/广东省林业科学研究院,广东 广州,510520;2. 台山市红岭种子园,广东 江门,529223;3. 台山市林业局,广东 台山,529200 |
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| 基金项目： | 广东省林业科技创新项目（2015KJCX010） |
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| 摘 要： | 【目的】分析轮伐中期施肥处理对湿地松Pinus elliottii半同胞家系生长的影响,比较磷肥与石灰的肥效差异。【方法】对13年生的湿地松半同胞子代测定林设置氮钾(对照)、氮钾+钙镁磷肥、氮钾+石灰3种施肥处理,分析了土壤和针叶的养分以及湿地松生长性状。【结果】轮伐中期施肥对株高、胸径及单株材积均有显著性影响,处理与家系的互作效应不显著。与对照相比,钙镁磷肥和石灰均促进了株高的生长,分别提高37.1%和29.5%;石灰可以促进材积增量,与对照相比,材积增量提高了22.5%,且石灰处理的胸径增长高于钙镁磷肥处理。【结论】轮伐中期可通过追施氮钾+石灰增加湿地松出材量;石灰对湿地松生长的促进可能与磷有关,与钙无关。
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| 关 键 词： | 湿地松 轮伐中期 肥效 石灰 裂区设计 生长性状 |
| 收稿时间： | 2016/5/9 0:00:00 |
Growth response of Pinus elliottii open pollinated families to mid-rotation fertilization |
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| GUO Wenbing,ZHAO Fencheng,ZHONG Suiying,DENG Leping,TAN Zhiqiang,RONG Renli,LI Zhen,LI Yiliang,WU Huishan.Growth response of Pinus elliottii open pollinated families to mid-rotation fertilization[J].Journal of South China Agricultural University,2017,38(1):90-95. |
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| Authors: | GUO Wenbing ZHAO Fencheng ZHONG Suiying DENG Leping TAN Zhiqiang RONG Renli LI Zhen LI Yiliang WU Huishan |
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| Institution: | 1 Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization/Guangdong Academy of Forestry,,1 Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization/Guangdong Academy of Forestry,,2 Taishan Hongling Seed Orchard,,2 Taishan Hongling Seed Orchard,,2 Taishan Hongling Seed Orchard,,3 Forestry Bureau of Taishan,,1 Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization/Guangdong Academy of Forestry,,1 Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization/Guangdong Academy of Forestry, and 1 Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization/Guangdong Academy of Forestry, |
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| Abstract: | Objective] To study the effect of mid-rotation fertilization on the growth of Pinus elliottii open pollinated families, and compare the differences of P fertilizer and liming. Method]Three different treatments ( NK as control, NK+Ca-Mg-P, NK+liming) were conducted in a 13-year P. elliottii open pollinated progeny test stand. The growth characteristics of P. elliottii were examined before and after fertilization,and the nutrition contents were analyzed in soil and needle.Result]Mid-rotation fertilization had a significant effect on the increments of height, DBH and volume, while the interaction effect between family and treatment was not significant. Compared to NK treatment, NK+Ca-Mg-P and NK+liming significantly increased the height increment by 37. 1% and 29. 5% respectively, while the latter increased the volume increment by 22. 5%. Meanwhile, the DBH increment of NK +liming treatment was higher than that of NK+Ca-Mg-P treatment.Conclusion]Liming with NK fertilizers can increase the timber yield of P. elliottii. The promotive effect of liming on growth of P. elliottii might be related to P instead of Ca. |
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| Keywords: | Pinus elliottii mid-rotation fertilizer effect liming split-plot design growth trait |
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