| 不同年龄橡胶树胶乳矿质养分的流失 |
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| 引用本文： | 曹建华,蒋菊生,陶忠良,谢贵水,赵春梅.不同年龄橡胶树胶乳矿质养分的流失[J].热带作物学报,2010,31(1):1-5. |
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| 作者姓名： | 曹建华 蒋菊生 陶忠良 谢贵水 赵春梅 |
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| 作者单位： | 1. 中国热带农业科学院橡胶研究所,海南儋州,571737
2. 海南省农垦科学院,海南海口,571026 |
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| 基金项目： | 农业部科研所基本业务费资助项目"橡胶林生态系统数字化技术研究"，海南省自然科学基金项目"橡胶林生态系统养分循环及动态模拟研究" |
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| 摘 要： | 以开割橡胶无性系PR107为材料,研究2a中不同月份8个年龄段(6～28a)的橡胶树干胶中矿质养分N、P、K、Ca、Mg的含量及流失情况,同时分析了树龄及不同季节对橡胶树胶乳养分流失量的影响。结果表明:(1)在一年中的不同季节,不同树龄PR107胶乳中矿质养分含量及流失总量大小顺序为:NKPMgCa。其中,N素平均流失量在15.19(8a)～41.28(22a)g/株/a;P素平均流失量为3.11(6a)～8.90(22a)g/株/a;K素平均流失量为10.09(8a)～28.40(22a)g/株/a;Ca素平均流失量为0.246(8a)～0.720(22a)g/株/a;Mg素平均流失量为1.68(6a)～5.49(22a)g/株/a。(2)季节因素和橡胶树年龄对胶乳矿质养分的流失具有极显著的影响。橡胶树年龄不同,或在一年中的不同季节,胶乳中矿质元素百分含量和干胶产量均不同,最终导致胶乳中矿质元素的流失量存在差异。
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| 关 键 词： | 橡胶树 不同树龄 胶乳 矿质养分 流失量 |
Loss of Mineral Elements in Latex from Rubber Trees at Various Ages |
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| Cao Jianhu,Jiang Jusheng,Tao Zhongliang,Xie Guishui and Zhao Chunmei.Loss of Mineral Elements in Latex from Rubber Trees at Various Ages[J].Chinese Journal of Tropical Crops,2010,31(1):1-5. |
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| Authors: | Cao Jianhu Jiang Jusheng Tao Zhongliang Xie Guishui and Zhao Chunmei |
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| Institution: | Cao Jianhua1,Jiang Jusheng2,Tao Zhongliang3,Xie Guishui1,Zhao Chunmei2 1 Rubber Research Institute,CATAS,Danzhou,Hainan 571737,2 Hainan Academy of State Farms,Haikou,Hainan 571026,China |
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| Abstract: | The loss of mineral elements(N, P, K, Ca and Mg) in the latex of rubber trees(Hevea brassiliensis) of the clone PR107 at different ages from 2 to 28 years were determined in two years, and the effect of tree age and seasonal factors on the loss of mineral elements from the latex were analyzed. The loss of mineral elements from the latex of the rubber trees at different ages increased in various seasons of a year in the order of N>K>P>Mg>Ca. The constant ranking is due to the specific characteristics of each... |
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| Keywords: | rubber tree(Hevea brassiliensis) PR107 tree age latex mineral nutrients loss |
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