| 局部施磷对橡胶树根系及植株生长的影响 |
| |
| 引用本文： | 华元刚,王羽,贝美容,罗微,林钊沐.局部施磷对橡胶树根系及植株生长的影响[J].热带农业科学,2012,32(7):1-4,8. |
| |
| 作者姓名： | 华元刚 王羽 贝美容 罗微 林钊沐 |
| |
| 作者单位： | 中国热带农业科学院橡胶研究所,海南儋州,571737 |
| |
| 基金项目： | 国家现代农业产业技术体系建设专项资金(No:CARS-34-GW6);中国热带农业科学院橡胶研究所基本科研业务费(No:1630022012003) |
| |
| 摘 要： | 采用盆栽分根试验,设计了5个局部施磷区比例,研究了局部等量施磷对橡胶树幼苗根系及植株生长的影响。结果表明:局部施磷区占盆栽土壤1/4以上时,可促进根系的发生,根系总长度及根系总表面积增加,但植株叶片磷含量及株高无显著影响;局部施磷区占盆栽土壤1/4以下时,根系数量、总长度、总表面积、生物量、叶片磷含量及株高均显著下降。
|
| 关 键 词： | 橡胶树 局部施磷 根系 |
Effect of Localized Supply of Phosphatic Fertilizer on Roots and Plant Growth of Hevea brasiliensis |
| |
| Hua Yuangang Wang Yu Bei Meirong Luo Wei Lin Zhaomu.Effect of Localized Supply of Phosphatic Fertilizer on Roots and Plant Growth of Hevea brasiliensis[J].Chinese Journal of Tropical Agriculture,2012,32(7):1-4,8. |
| |
| Authors: | Hua Yuangang Wang Yu Bei Meirong Luo Wei Lin Zhaomu |
| |
| Institution: | Hua Yuangang Wang Yu Bei Meirong Luo Wei Lin Zhaomu(Rubber Research Institute,CATAS,Danzhou,Hainan 571737) |
| |
| Abstract: | Under the condition of pot experiment,the rubber tree roots were treated with phosphatic fertilizer supplying by 5 localized area rates,the effect of supplying fertilizer locally on roots and plant growth was studied.Results indicated that,compared with CK(supply complete phosphate on whole roots),the roots under controlled conditions(more than a quarter percent) were stronger,with more lateral roots,the total length the absorbed area increased,but no obvious response to leaf P content and shoot height.The base traits group(including quantity,total length,the absorbed area,biomass of the root,leaf P content and shoot height) showed negative response to the localized area rates which less than a quarter percent.These effects indicated that phosphate has an important function to the roots. |
| |
| Keywords: | Hevea brasiliensis localized supply of phosphatic fertilizer root |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
