施肥对降香黄檀营养生长和生殖生长的影响

doi:10.7525/j.issn.1673-5102.2018.02.009

植物研究 ›› 2018, Vol. 38 ›› Issue (2): 225-231.doi: 10.7525/j.issn.1673-5102.2018.02.009

施肥对降香黄檀营养生长和生殖生长的影响

王丽云^1,2, 刘小金¹, 崔之益¹, 徐大平¹, 杨曾奖¹, 张宁南¹, 洪舟¹, 陈家堂², 黄维荣²

1. 中国林业科学研究院热带林业研究所, 广州 510520;
2. 中国林业科学研究院亚热带林业实验中心, 分宜 336600

收稿日期:2017-11-08 出版日期:2018-03-15 发布日期:2018-03-23
通讯作者: 刘小金 E-mail:xjliu@caf.ac.cn
作者简介:王丽云(1986-),女,工程师,博士研究生,主要从事森林培育的研究。
基金资助:
“十三五”国家重点研发专项项目（2016YFD0600601）；中央级公益性科研院所基本科研业务费专项（RITFYWZX201407）；广东省林业科技创新专项资金项目（2016KJCX009）

Effects of Fertilization on the Vegetative and Reproductive Growth of Dalbergia odorifera T.Chen.

WANG Li-Yun^1,2, LIU Xiao-Jin¹, CUI Zhi-Yi¹, XU Da-Ping¹, YANG Zeng-Jiang¹, ZHANG Ning-Nan¹, HONG Zhou¹, CHEN Jia-Tang², HUANG Wei-Rong²

1. Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou 510520;
2. Experimental Center for Subtropical Forestry, Chinese Academy of Forestry, Fenyi 336600

Received:2017-11-08 Online:2018-03-15 Published:2018-03-23
Supported by:
The National Key Research and Development Program of China(2016YFD0600601);The Fundamental Research Funds for the Central Non-profit Research Institution of Research Institute of Tropical Forestry,Chinese Academy of Forestry(RITFYWZX201407);The Forestry Technology Innovation Program of Guangdong Forest Department(2016KJCX009)

摘要/Abstract

摘要： 研究施肥对降香黄檀（Dalbergia odorifera T.Chen.）营养生长和生殖生长的影响，为不同经营目标的降香黄檀人工林培育提供技术支撑。本研究以8年生降香黄檀为对象，设置N（185.6 g N/株）、P（120 g P₂O₅/株）、K（120 g K₂O/株）、PK（120 g P₂O₅+120 g K₂O/株）、NPK（185.6 g N+120 g P₂O₅+120 g K₂O/株）以及不施肥（对照）等六个处理，调查施肥后盛花期内一年生新梢、叶、花的生长情况。结果表明：6个施肥处理间降香黄檀营养生长和生殖生长均差异显著（P<0.05）。N处理的营养枝率、营养枝复叶数和小叶宽分别比对照提高40.25%、21.75%和9.52%，花序直径和花序生物量则降低12.75%和48.63%，显示N肥能促进降香黄檀营养生长，抑制生殖生长，有利于大径材培育；P、PK处理的营养枝率较对照显著降低47.96%和46.84%，表明P肥和K肥能促进生殖生长，有利于良种选育；NPK处理能同时显著促进营养生长和生殖生长，其营养枝率、营养枝长度、营养枝复叶数、营养枝小叶长、宽和枝生物量比对照提高26.04%、68.16%、32.98%、15.20%、11.40%和83.60%，花序数量和花序生物量亦提高54.20%和49.84%。因此，在降香黄檀人工林培育实践中，可通过调整肥料的NPK配比（偏向N或PK）以实现营养生长或生殖生长调控之目的。

关键词: 降香黄檀, 营养生长, 生殖生长, 配方施肥

Abstract: The experiment was conducted to study the fertilization on vegetative and reproductive growth of Dalbergia odorifera, and then provide useful suggestions for plantation management. The effects of Nitrogen(N, 185.6 g N per tree), Phosphorus(P, 120 g P₂O₅ per tree), Potassium(K, 120 g K₂O per tree) as well as their mixtures(PK, 120 g P₂O₅ mixed with 120 g K₂O per tree; NPK, 185.6 g N mixed with 120 g P₂O₅ and 120 g K₂O per tree) on leaf growth, branch development, inflorescences set and biomass accumulation of a 8-year-old D.odorifera plantation were studied. There were significant differences on vegetative and reproductive growth of D.odorifera among these treatments(P<0.05). Nitrogen(N) treatment was helpful for vegetative growth of D.odorifera, and suitable for large-timber forest cultivation, because the ratio of vegetative branch, leaf number and leaflet width of vegetative branches were increased by 40.25%, 21.75% and 9.52%, and the inflorescence diameter and biomass were decreased by 12.75% and 48.63%, respectively. While P and P mixed with K were more appropriated for breeding purpose, because the ratio of vegetative branch was decreased by 47.96% and 46.84%, respectively. When N, P and K were mixed together(NPK), the vegetative and reproductive growth were both enhanced significantly(P<0.05), because the ratio of vegetative branch, length of vegetative branch, leaf number, leaflet length, leaflet width, branch biomass, inflorescence number and inflorescence biomass were increased by 26.04%, 68.16%, 32.98%, 15.20%, 11.40%, 83.60%, 54.20% and 49.84%, respectively. Thus, the vegetative and reproductive growth of D.odorifera can be regulated though formula fertilization(biased to N or P and K).

Key words: Dalbergia odorifera T.Chen., vegetative growth, reproductive growth, formula fertilization

中图分类号:

S725.5

王丽云, 刘小金, 崔之益, 徐大平, 杨曾奖, 张宁南, 洪舟, 陈家堂, 黄维荣. 施肥对降香黄檀营养生长和生殖生长的影响[J]. 植物研究, 2018, 38(2): 225-231.

WANG Li-Yun, LIU Xiao-Jin, CUI Zhi-Yi, XU Da-Ping, YANG Zeng-Jiang, ZHANG Ning-Nan, HONG Zhou, CHEN Jia-Tang, HUANG Wei-Rong. Effects of Fertilization on the Vegetative and Reproductive Growth of Dalbergia odorifera T.Chen.[J]. Bulletin of Botanical Research, 2018, 38(2): 225-231.

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施肥对降香黄檀营养生长和生殖生长的影响

Effects of Fertilization on the Vegetative and Reproductive Growth of Dalbergia odorifera T.Chen.

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