| 几种作物NO3-吸收动力学参数测定方法初探 |
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| 引用本文： | 田霄鸿,李生秀,王清君. 几种作物NO3-吸收动力学参数测定方法初探[J]. 土壤通报, 2001, 32(1): 16-18 |
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| 作者姓名： | 田霄鸿 李生秀 王清君 |
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| 作者单位： | 1. 西北农业大学资源与环境科学系,
2. 陕西镇巴县土地管理局 |
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| 基金项目： | 国家自然科学基金重大课题(49890330)和面上项目(39770425，39970429)资助和陕西省星火计划项目 |
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| 摘 要： | 本文测定了几种用蛭石培养的作物幼苗对NO3-的吸收动力学参数，着重对测定方法、要求和数据处理方法进行了初步探讨.结果表明，为使所测参数真实可靠，应做到作物根系能在限定时间内吸收足够多的离子，吸收系列处理数不小于8，应该用米氏方程的两种变换式同时对数据进行处理并用相关系数对测得参数的精度作出评价等.
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| 关 键 词： | 蔬菜作物；NO |
| 文章编号： | 0564-3945(2001)01-0016-03 |
| 修稿时间： | 1998-11-08 |
Preliminary study on themethods for determining absorption kinetic parameters of NO3 - byusing some crops |
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| TIAN Xiao-hong,LI Sheng-xiu,WANG Qing-jun. Preliminary study on themethods for determining absorption kinetic parameters of NO3 - byusing some crops[J]. Chinese Journal of Soil Science, 2001, 32(1): 16-18 |
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| Authors: | TIAN Xiao-hong LI Sheng-xiu WANG Qing-jun |
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| Abstract: | The absorption kinetic parameters of NO3- by some crop seedlings, which were cultured in vermiculite medium, were investigated. The aim was to determine the measurement methods. In order to obtain reliable and true data, the following aspects should be taken into consideration: the crops should absorb enough ions in a limited time, the treatment number of absorption series should be 8 or more,the transformations of Mischerlisch Equation should be used to simulate the data and, in the meantime, correlation coefficients should be applied to evaluate the precision of the kinetic parameters. |
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