| 不同浓度镁营养液对烟草矿质营养吸收与积累的影响 |
| |
| 引用本文： | 刘世亮,刘芳,介晓磊,雷广海,化党领.不同浓度镁营养液对烟草矿质营养吸收与积累的影响[J].土壤通报,2010(1). |
| |
| 作者姓名： | 刘世亮 刘芳 介晓磊 雷广海 化党领 |
| |
| 作者单位： | 河南农业大学;郑州牧业工程高等专科学校; |
| |
| 基金项目： | 河南省烟草专卖局重大项目“河南省优质烤烟营养条件与烟叶品质相互关系的研究”(HYKJ200203); 河南省自然科学基金“烟草成熟期烟叶钾降低与土壤钾钙镁相互关系研究”(2007210020) |
| |
| 摘 要： | 采用温室水培的方法,研究了不同的镁素供应水平对烟草主要几种矿质养分的吸收与积累的影响。结果表明,在其它养分形态与浓度一致条件下,随着镁浓度从20mgL-1提高到120mgL-1,烟草生长量呈抛物线型变化,在供镁浓度为40mgL-1时烟株生长及干物质积累量最大。随着营养液中镁浓度由低到高,营养液中镁水平的改变对烟草全株氮含量的影响不明显;烟草全株体内磷、镁含量逐步增加,表现为协同效应;烟草全株中钾含量和锌含量随营养液中镁水平增加而降低,表现为拮抗效应;烟草全株体内钙含量和铜含量的变化趋势分为两个阶段,镁处于低水平时,镁与钙、铜之间表现为拮抗关系,镁处于高水平时,镁与钙、铜之间表现为协同关系。营养液中镁浓度低于40mgL-1时,烟草全株体内氮、磷、钾、钙、锰、镁、锌、铜积累量随着营养液中镁水平的提高逐渐增加,与营养液中镁水平呈正相关关系,营养液中镁浓度高于40mgL-1,烟草全株体内氮、磷、钾、钙、锰、镁、锌、铜积累量迅速下降,表面为负相关关系。烟叶中各元素含量与积累量的变化趋势与整株基本一致。
|
| 关 键 词： | 烟草 镁素 矿质养分 含量 积累量 水培 |
Effect of Mg~(2+) Concentrations on Absorption and Accumulation of Mineral Nutrients in Tobacco |
| |
| LIU Shi-liang ,LIU Fang ,JIE Xiao-lei ,LEI Guang-hai ,HUA Dang-ling.Effect of Mg~(2+) Concentrations on Absorption and Accumulation of Mineral Nutrients in Tobacco[J].Chinese Journal of Soil Science,2010(1). |
| |
| Authors: | LIU Shi-liang LIU Fang JIE Xiao-lei LEI Guang-hai HUA Dang-ling |
| |
| Institution: | LIU Shi-liang 1,LIU Fang 1,JIE Xiao-lei 1,2,LEI Guang-hai 1,HUA Dang-ling 1 (1.Henan Agricultural University,Zhengzhou 450002,China,2.Zhengzhou College of Animal Husb,ry Engineering,Zhengzhou 450011,China) |
| |
| Abstract: | Using water-culture method,this paper studied the effect of Mg 2+ on the absorption and accumulation of several mineral nutrients in tobacco.The results showed that with the increasing supply of Mg 2+ from 20 mg L-1 to 120 mg L-1,the tobacco biomass varied in a shape of parabola and got a peak value at 40 mg L-1 of Mg 2+.There was no significantly effect on contents of N with Mg 2+ concentrations changed in solution.The P and Mg 2+ content in tobacco increased steadily with Mg 2+ supply in solution,while th... |
| |
| Keywords: | Tobacco Mg Mineral nutrient Content Accumulation Water-culture |
| 本文献已被 CNKI 等数据库收录！ |
|
