|
|||||
|
|
| 缺磷对茶树幼苗养分吸收的影响 | |
| 引用本文： | 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). |
| 作者姓名： | 林郑和 陈立松 陈荣冰 彭艾 |
| 作者单位： | 1. 福建农林大学园艺学院,福建,福州,350002;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;福建省农业科学院茶叶研究所,福建,福安,355000 2. 福建农林大学园艺学院,福建,福州,350002;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 4. 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 |
| 基金项目： | 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) |
| 摘 要： | 每周3次用含0、40、80、160、400、1000μmol/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] |
Effects of Phosphorus Deficiency on Nutrient Absorption of Young Tea Bushes |
|
| 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). | |
| Authors: | LIN Zheng-he CHEN Li-song CHEN Rong-bing PENG Ai |
| Institution: | 1. College of Horticulture;Fujian Agriculture and Forestry University;Fuzhou 350002;China;2. Institute of Plant Physiology;Biochemistry and Molecular Biology of horticultural crops;3. Tea Research Institute;Fujian Academy of Agricultural Sciences;Fuan 355000;China |
| 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. |
| Keywords: | phosphorus (P) deficiency nutrient elements tea [Camellia sinensis (L ) O Kuntze] |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |