缺磷对茶树幼苗养分吸收的影响

doi:10.13305/j.cnki.jts.2009.4.008

茶叶科学 ›› 2009, Vol. 29 ›› Issue (4): 295-300.doi: 10.13305/j.cnki.jts.2009.4.008

缺磷对茶树幼苗养分吸收的影响

林郑和^1,2,3, 陈立松^1,2,*, 陈荣冰³, 彭艾²

1. 福建农林大学园艺学院,福建福州 350002;
2. 福建农林大学园艺植物生理生化与分子生物学研究所,福建福州 350002;
3. 福建省农业科学院茶叶研究所,福建福安 355000

修回日期:2008-11-10 接受日期:2009-03-20 发布日期:2019-09-09
通讯作者: *
作者简介:林郑和（1975–）,男,福建福安,助理研究员,博士研究生,主要从事茶树生理与营养学研究
基金资助:
农业部(福安)茶树种质资源野外科学观测站; 国家科技支撑计划项目（2007BAD07B02）

Effects of Phosphorus Deficiency on Nutrient Absorption of Young Tea Bushes

LIN Zheng-he^1,2,3, CHEN Li-song^1,2,*, CHEN Rong-bing³, PENG Ai¹

1. College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China;
2. Institute of Plant Physiology, Biochemistry and Molecular Biology of horticultural crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China;
3. Tea Research Institute, Fujian Academy of Agricultural Sciences, Fuan 355000, China

Revised:2008-11-10 Accepted:2009-03-20 Published:2019-09-09

摘要/Abstract

摘要： 每周3次用含0、40、80、160、400、1 000 μmol/L磷（P）的营养液浇沙培10月龄扦插“黄观音”茶[Camellia sinensis (L.) O. Kuntze]苗17周。随供P浓度的增加,茶树根P含量呈线性增加,但茎和叶P含量呈曲线增加;在所有供P处理中,根P含量最高,其次是叶P含量,茎P含量最低,高供P处理的植株尤为明显。缺P降低茶树根茎叶K含量,但对根茎叶Ca含量影响不大。缺P降低根Mg含量,增加茎的Mg含量,但对叶Mg含量影响较小。不供P叶有稍高的C含量,较低的N含量和较高的C/N比;供P对根和茎C和N含量及C/N比影响较小。总之,缺P不仅影响茶树根茎叶营养元素的含量,也改变其在根茎叶之间的分配。

关键词: 磷（P）, 营养元素, 茶[Camellia sinensis (L.) O. Kuntze]

Abstract: ：Vegetative propagated 10-month-old tea [Camellia sinensis (L.) O. Kuntze cv. Huangguanyin] plants grown in pots containing sand were fertilized three times weekly for 17 weeks with nutrient solution at a phosphorus (P) concentration of 0, 40, 80, 160, 400 or 1 000 μmol/L. As P supply increased, root P content increased linearly, while stem and leaf P content increased in a curve shape. Over the range of P supply, the sequence of P content in the three organs is root P content > leaf P content > stem P content, especially in high P-treated plants. P deficiency decreased the P contents in roots, stems and leaves, but had little effects on the Ca content of roots, stems and leaves. P deficiency decreased root Mg content and increased stem Mg content, but showed insignificant effects on leaf Mg content. Leaves from P-deficient (0 μmol/L P) plants had slightly higher C content, lower N content and higher C/N ratio, whereas P supply had little effects on the contents of C and N and the ratio of C to N in roots and stems. In conclusion, P deficiency not only affects contents of nutrient elements in tea roots, stems and leaves, but also altered distribution of nutrient elements among roots, stems and leaves.

Key words: phosphorus (P) deficiency, nutrient elements, tea [Camellia sinensis (L.) O. Kuntze]

中图分类号:

林郑和, 陈立松, 陈荣冰, 彭艾. 缺磷对茶树幼苗养分吸收的影响[J]. 茶叶科学, 2009, 29(4): 295-300. doi: 10.13305/j.cnki.jts.2009.4.008.

LIN Zheng-he, CHEN Li-song, CHEN Rong-bing, PENG Ai. Effects of Phosphorus Deficiency on Nutrient Absorption of Young Tea Bushes[J]. Journal of Tea Science, 2009, 29(4): 295-300. doi: 10.13305/j.cnki.jts.2009.4.008.

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缺磷对茶树幼苗养分吸收的影响

Effects of Phosphorus Deficiency on Nutrient Absorption of Young Tea Bushes

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