油松容器苗生长和氮吸收对指数施肥的响应

林平; 邹尚庆; 李国雷; 黄冬辉; 祝燕; 蒋乐; 史文辉

doi:10.3969/j.issn.1000-2006.2013.03.005

油松容器苗生长和氮吸收对指数施肥的响应

林平,邹尚庆,李国雷,黄冬辉,祝燕,蒋乐,史文辉

南京林业大学学报（自然科学版） ›› 2013, Vol. 37 ›› Issue (03) : 23-28.

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南京林业大学学报（自然科学版） ›› 2013, Vol. 37 ›› Issue (03) : 23-28. DOI: 10.3969/j.issn.1000-2006.2013.03.005

研究论文

油松容器苗生长和氮吸收对指数施肥的响应

林平¹, 邹尚庆¹, 李国雷^1*, 黄冬辉², 祝燕¹, 蒋乐¹, 史文辉¹

作者信息 +

Response of growth and N uptake of Pinus tabulaeformis container seedlings to exponential fertilization

LIN Ping¹, ZOU Shangqing¹, LI Guolei^1*, HUANG Donghui², ZHU Yan¹, JIANG Le¹, SHI Wenhui¹

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摘要

采用指数施肥方式,对油松容器苗设置7种施N肥处理(10、20、40、60、80、100、120 mg/株),进行25次施肥,研究施肥量对油松苗木质量的影响。结果表明:施N肥量为100 mg/株时,苗木生物量、氮含量、顶芽粗、叶原基数、地径、苗高、合格苗率均达到最大,施N肥量增至120 mg/株时,地径、叶原基数较100 mg/株处理显著下降。施肥量小于60 mg/株时,油松容器苗合格率达不到国标要求,且主要因苗高不足造成。

Abstract

To evaluate the effect of nitrogen(N)applied amount on the quality of Pinus tabulaeformis container seedlings, exponential fertilization regime with seven different fertilizer gradients of 10, 20, 40, 60, 80, 100, 120 mg per plant was used during a growing season in the greenhouse. When seedlings received 100 mg fertilizer per plant, height, diameter, biomass, N content, the number of needle primordial, and rate of qualified seedlings all achieved the maximum. Compared with the 100 mg per plant treatment, both diameter and the number of needle primordial decreased significantly as the nitrogen applied amount increased to 120 mg per plant. Rate of qualified seedlings could not meet the national standard consistently when the nitrogen applied amount was no more than 60 mg per plant, mainly resulting from the reduced height.

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林平,邹尚庆,李国雷,黄冬辉,祝燕,蒋乐,史文辉. 油松容器苗生长和氮吸收对指数施肥的响应[J]. 南京林业大学学报（自然科学版）. 2013, 37(03): 23-28 https://doi.org/10.3969/j.issn.1000-2006.2013.03.005

LIN Ping, ZOU Shangqing, LI Guolei, HUANG Donghui, ZHU Yan, JIANG Le, SHI Wenhui. Response of growth and N uptake of Pinus tabulaeformis container seedlings to exponential fertilization[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY. 2013, 37(03): 23-28 https://doi.org/10.3969/j.issn.1000-2006.2013.03.005

中图分类号： S722

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基金

收稿日期:2012-02-23 修回日期:2012-12-21
基金项目:北京市自然科学基金项目(6132023); 中央高校基本科研业务费专项资金项目(TD2011-08,JD2011-3)
第一作者:林平,高级实验师。*通信作者:李国雷,副教授。E-mail: glli226@163.com。
引文格式:林平, 邹尚庆, 李国雷,等. 油松容器苗生长和氮吸收对指数施肥的响应[J]. 南京林业大学学报:自然科学版,2013,37(3):23-28.