秋季施肥对油松容器苗生长·氮吸收和抗寒性的影响 |
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引用本文: | 邹尚庆,李国雷,刘勇,祝燕,庞薇,蒋乐,史文辉. 秋季施肥对油松容器苗生长·氮吸收和抗寒性的影响[J]. 安徽农业科学, 2012, 40(23): 11710-11714,11740 |
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作者姓名: | 邹尚庆 李国雷 刘勇 祝燕 庞薇 蒋乐 史文辉 |
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作者单位: | 北京林业大学省部共建森林培育与保护教育部重点实验室,北京,100083;北京林业大学省部共建森林培育与保护教育部重点实验室,北京,100083;北京林业大学省部共建森林培育与保护教育部重点实验室,北京,100083;北京林业大学省部共建森林培育与保护教育部重点实验室,北京,100083;北京林业大学省部共建森林培育与保护教育部重点实验室,北京,100083;北京林业大学省部共建森林培育与保护教育部重点实验室,北京,100083;北京林业大学省部共建森林培育与保护教育部重点实验室,北京,100083 |
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摘 要: | [目的]研究秋季施肥对油松容器苗生长、氮吸收和抗寒性的影响。[方法]对在生长期经过不同指数施肥水平10、40、80和120mg/株处理过的油松容器苗进行秋季施肥,设置4个处理水平0(对照)、12、24和48 mg/株,苗木在温室培育一个生长季并在翌年进行造林试验。[结果]秋季施肥24 mg/株为最佳处理,在40E-24处理下,N含量相比对照增加了15.9%,抗寒性在-20℃下更提高了95.2%,造林效果最佳。[结论]秋季施肥可有效提高苗木体内养分含量,抗寒性及翌年造林效果。但过量的秋季施肥(48 mg/株)并不促进苗木生长甚至有抑制或者损害作用。
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关 键 词: | 油松 秋季施肥 抗寒性 造林效果 |
The Effect of Fall Fertilization on Pinus tabulaeformis Container Seedlings Growth, Nitrogen Uptake and Cold Tolerance |
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Affiliation: | ZOU Shang-qing et al(Key Laboratory for Silviculture and Conservation of Ministry of Education,Beijing Forestry University,Beijing100083) |
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Abstract: | [Objective]Study the effect of fall fertilization to Pinus tabulaeformis container seedlings growth,nitrogen uptake and cold tolerance.[Method]We make fall fertilization to Pinus tabulaeformis container seedlings,which have been processed in exponential fertilization level of 10,40,80,and 120 mg/plants in the growing season,set four treatment levels of 0(control),12,24 and 48 mg/plants,seedlings will besed to do afforestation experiment after a growing season in the greenhouse cultivation in the following year.[Result]While fall fertilization of 24 mg/plants is the best treatment,under the treatment of 40E-24,N content was increased 15.9% compared to the control,cold resistance at-20 ℃ has increased 95.2%,afforestation effects are the best.[Conclusion]Fall fertilization can improve the nutrient content,cold tolerance and afforestation effects the following year.On the contrary,excessive fall fertilization(48 mg/plants)does not promote seedling growth but inhibit or damage. |
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Keywords: | Pinus tabulaeformis Fall fertilization Cold tderance Afforestation effects |
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