| 毛竹冬笋中氮磷钾含量的动态变化与积累规律 |
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| 引用本文： | 苏文会,封焕英,范少辉,许庆标,周金明,杨松红.毛竹冬笋中氮磷钾含量的动态变化与积累规律[J].林业科学研究,2013,26(2):252-256. |
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| 作者姓名： | 苏文会 封焕英 范少辉 许庆标 周金明 杨松红 |
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| 作者单位： | 1. 国际竹藤中心,竹藤科学与技术重点实验室,北京100102
2. 安徽省黄山市黄山公益林场,安徽黄山,242700 |
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| 基金项目： | 国际竹藤中心基本科研业务费专项资金项目(1632011006);"十二五"国家科技支撑计划课题(2012BAD23B04) |
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| 摘 要： | 毛竹(Phyllostachys edulis(Carr.)H.de Lehaie)作为我国最主要的经济和生态竹种1-6],其养分管理和丰产培育技术一直是重要研究内容7-12];然而,由于毛竹大小年和异龄结构等特点,迄今丰产经营的毛竹林肥培仍多凭经验,施肥量和肥培重点对象不明确,极易造成养分流失、肥力降低和环境污染.为此,近年来作者及课题组成员从毛竹生长发育规律出发,系统研究了自冬笋到竹材成熟采伐整个生长(经营)期毛竹生长和养分积累规律.冬笋是毛竹的第一生长阶段13],其生长和营养状况直接决定着来年林分产量和经济效益14].
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| 关 键 词： | 毛竹 冬笋 氮 磷 钾 积累 |
| 收稿时间： | 6/8/2012 12:00:00 AM |
Dynamic Changes and Accumulation Rules of N, P and K Contents in Winter Shoot of Phyllostachys edulis |
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| SU Wen-hui,FENG Huan-ying,FAN Shao-hui,XU Qing-biao,ZHOU Jin-ming and YANG Song-hong.Dynamic Changes and Accumulation Rules of N, P and K Contents in Winter Shoot of Phyllostachys edulis[J].Forest Research,2013,26(2):252-256. |
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| Authors: | SU Wen-hui FENG Huan-ying FAN Shao-hui XU Qing-biao ZHOU Jin-ming and YANG Song-hong |
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| Institution: | International Centre for Bamboo and Rattan, Key Laboratory on the Science and Technology of Bamboo and Rattan, Beijing 100102, China;International Centre for Bamboo and Rattan, Key Laboratory on the Science and Technology of Bamboo and Rattan, Beijing 100102, China;International Centre for Bamboo and Rattan, Key Laboratory on the Science and Technology of Bamboo and Rattan, Beijing 100102, China;International Centre for Bamboo and Rattan, Key Laboratory on the Science and Technology of Bamboo and Rattan, Beijing 100102, China;Huangshan Gongyi Forest Farm of Huangshan City, Anhui Province, Huangshan 242700, Anhui, China;Huangshan Gongyi Forest Farm of Huangshan City, Anhui Province, Huangshan 242700, Anhui, China |
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| Abstract: | In order to find out the nutrient requirement of Phyllostachys edulis in winter shoot growing period, the dynamic changes and accumulation rules of N, P and K contents in winter shoots were studied. The result showed that the N, P and K contents in shoot body were much higher than that in sheath. As shoot growing, the contents of the three elements in shoot body showed the change trend of decreaseing at first and then increasing slightly, but in sheath, the dynamic changes of N, P and K contents were not obvious. After sprouting, the nutrient accumulation speed and amount in winter shoot increased gradually as its growing up. By February, the N, P and K in winter shoots accumulated up to 2 807.62 g·hm-2, 305.57 g·hm-2 and 610.23 g·hm-2 respectively. The nutrient accumulation (Y, g) in shoot had a significant correlation with the shoot high (H, cm) and diameter (d, cm), and the model of N accumulation to H and d is Y=-2.068 9+0.001 0 H+0.626 6 d(R2=0.807 2). |
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| Keywords: | Phyllostachys edulis winter shoot N P K accumulation |
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