EFFECT OF HIGH-VOLTAGE ELECTROSTATIC FIELD ON INORGANIC NITROGEN UPTAKE BY CUCUMBER PLANTS

被引：0
|
作者：
Wu, Y. [1 ,2 ]
Zhu, J. [1 ]
Li, Y. [1 ]
Li, M. [1 ]
机构：
[1] Jiangsu Univ, Inst Agr Engn, Minist Educ China, Key Lab Modern Agr Equipment & Technol, Zhenjiang, Peoples R China
[2] Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550081, Peoples R China
来源：
TRANSACTIONS OF THE ASABE | 2016年 / 59卷 / 01期
关键词：
Cucumis sativus L; Depolarization; High-voltage electric field; Hyperpolarization; Ion absorption kinetics; AMMONIUM; NITRATE; ASSIMILATION; GERMINATION; TRANSPORT; FLUXES; ROOTS; CELLS; SEED;
D O I：
暂无
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
We investigated the inorganic nitrogen uptake by cucumber (Cucumis sativus L.) plants under high-voltage electrostatic field (HVEF). The maximum uptake rates and affinities significantly changed with increasing field intensity. Ammonium uptake slightly increased when the field intensity increased to 1.0 kV cm(-1) and then decreased between 2.0 and 3.0 kV cm(-1). HVEF contributed to the affinity for nitrate in all treatment groups. The affinity of cucumber seedlings for nitrate positively correlated with the intensity of the applied field as the field increased to 1.0 kV cm(-1). HVEF enabled the seedlings to opt to consume nitrate when two types of nitrogen were present in the nutrient solution. These results can be attributed to feedback adjustment and electron transportation in nitrogen assimilation.
引用
收藏
页码：25 / 29
页数：5
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