| 土壤容重和施肥条件对玉米根系生长的影响 |
| |
| 引用本文： | 才晓玲,李志洪. 土壤容重和施肥条件对玉米根系生长的影响[J]. 云南农业大学学报(自然科学版), 2009, 24(3): 470-473 |
| |
| 作者姓名： | 才晓玲 李志洪 |
| |
| 作者单位： | 才晓玲,CAI Xiao-ling(临沧师范高等专科学校,数学系,云南,临沧,677000);李志洪,LI Zhi-hong(吉林农业大学,资源与环境学院,吉林,长春,130118) |
| |
| 摘 要： | 土壤容重对玉米根系乃至植株产量有着重要影响，采用回填土法控制土壤容重，用土柱法培养玉米根系，通过在不同容重和不同土层施肥对玉米根系生长状况的影响的研究，结果表明，随着容重的增加，植株和根系生物量、根系吸收表面积呈显著降低趋势。在不同土层，根系生物量变化存在差异，容重对根系吸收表面积影响无递变规律，但对于施肥处理的土层，根系吸收表面积显著高于对照。
|
| 关 键 词： | 土壤容重 玉米根系 根系生物量 |
| 收稿时间： | 2008-04-09 |
| 修稿时间： | 2008-07-31 |
Effect of Bulk Density and Fertilizer on the Corn Growth |
| |
| CAI Xiao-ling,LI Zhi-hong. Effect of Bulk Density and Fertilizer on the Corn Growth[J]. Journal of Yunnan Agricultural University, 2009, 24(3): 470-473 |
| |
| Authors: | CAI Xiao-ling LI Zhi-hong |
| |
| Affiliation: | 1.Mathematical Department, Lincang Teachers College, Lincang 677000, China; 2.College of Environmental and Resource Sciences, Jilin Agricultural University, Changchun 130118, China |
| |
| Abstract: | The bulk density has a significant impact on the corn roots and output. Through controlling the soil bulk density by backfilling soil and cultivating corn root by soil column, the growth of maize root system under different bulk densities and different fertilizer treatments was analyzed. The results showed that the root system biomass and total absorbability surface area of root decreased with the increase of bulk densities. In different soil layers, there was no certain change pattern between soil bulk density and the absorbability surface area of root; however, in the fertilization soil layer, the absorbability surface area of root by fertilization better than the contrasts. |
| |
| Keywords: | soil bulk density corn root root biomass |
| 本文献已被 维普 万方数据 等数据库收录！ |
| 点击此处可从《云南农业大学学报(自然科学版)》浏览原始摘要信息 |
|
点击此处可从《云南农业大学学报(自然科学版)》下载全文 |
|
