| 1年生樟子松苗营养积累过程的研究 |
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| 引用本文： | 赵雪岭,朱万昌,刘昕哲,王立中.1年生樟子松苗营养积累过程的研究[J].防护林科技,2004(4):28-29,80. |
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| 作者姓名： | 赵雪岭 朱万昌 刘昕哲 王立中 |
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| 作者单位： | 大兴安岭林业科学研究所,黑龙江,大兴安岭,165000 |
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| 摘 要： | 通过 3a对樟子松 1年生苗木的营养积累过程的研究表明 :1年生樟子松苗在生长期内 ,干物质的积累和对N、P、K的吸收利用是以叶为中心 ,到生长中、后期 ,根、茎、叶中的干物质积累和对三元素的吸收积累速率明显加快。而在不同生长时期对三元素的吸收利用比例也不同 ,生长前期表现为N >P >K ,生长中后期表现为K >N >P ,生长后期表现为P >N >K。
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| 关 键 词： | 樟子松苗 干物质 营养元素 |
| 文章编号： | 1005-5215(2004)04-0028-02 |
STUDY ON NUTRIENT ACCUMULATION PROCESS OF ANNUAL SEEDLINGS OF P.SYLVESTRIS VAR.MONGOLICA |
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| ZHAO Xue-ling,ZHU Wan-chang,LIU Xin-zhe,WANG Li-zhong.STUDY ON NUTRIENT ACCUMULATION PROCESS OF ANNUAL SEEDLINGS OF P.SYLVESTRIS VAR.MONGOLICA[J].Protection Forest Science and Technology,2004(4):28-29,80. |
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| Authors: | ZHAO Xue-ling ZHU Wan-chang LIU Xin-zhe WANG Li-zhong |
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| Abstract: | Study on nutrient accumulation process of annual seedlings of P.sylvestris var,mongolica showed that in growing phase of the seedling,leaves played a leading role in dry matter accumulation and absorbing for N,P,K.In the medium and later phases of growth the speed of accumulation of dry matter and absorbing for the three elements quickened obviously.The order of absorbing was N>P>K in the early phase,K>N>P in the mediam phase and P>N>K in the later phase. |
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| Keywords: | Pinus sylvestris var mongolica dry matter nutrient element |
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