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Effect of High-Voltage Electrostatic Field on Inorganic Nitrogen Uptake by Cucumber Plants

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  Transactions of the ASABE. 59(1): 25-29. (doi: 10.13031/trans.59.11040) @2016
Authors:   Yanyou Wu, Jianyun Zhu, Yanxu Li, Meiqing Li
Keywords:   Cucumis sativus L., Depolarization, High-voltage electric field, Hyperpolarization, Ion absorption kinetics.

Abstract. We investigated the inorganic nitrogen uptake by cucumber ( 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 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.

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