Paper Information

Journal:   JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES   OCTOBER-NOVEMBER 2007 , Volume 14 , Number 4; Page(s) 211 To 219.
 
Paper: 

THE EFFECT OF ELECTRICAL FIELD INTENSITY ON SOIL MOISTURE TRANSFER IN ELECTRO OSMOSES PHENOMENON

 
 
Author(s):  NIKNEZHAD D.*
 
* EAST AZARBYJAN RESEARCH CENTER FOR AGRICULTURAL AND NATURAL RESOURCES, IRAN
 
Abstract: 

In the regions where crop water requirements are provided by ground water, for taking moisture or water up to soil surface or root zone, pumping systems are usually used. If we could replace pumping systems with electrical current or electrical field intensity, we would suggest a new irrigation method which is the main purpose of this study. Electro osmosis phenomenon has different applications which one of them is irrigation. This experiment investigated the effect of different electrical field intensities on moving soil moisture using electro osmosis phenomenon. For this purpose an isolated non-conductive container was built in 1 meter depth and 0.06 m2 area and filled with uniform moisture soil. Ten centimeters of depth in lower part of soil were kept in saturated condition. A steel bar as positive pole in saturated part and a metal network as negative pole in 10 centimeters below the soil surface were placed. Therefore, the distance of electrodes or poles will be 70 centimeters. Moisture was transferred from anode part to cathode part when electrical field was conducted. The electrical field intensities applied in soil containers in 5 days’ was 0.0, 28.6, 57.1, 85.7 and 114.3 volt/meter. Transmitted moisture in field intensities mentioned were %21.50, %29.21, %31.34, %33.00 and %36.50, respectively. The results indicated that more electrical field intensity is more transmitted moisture in soil in defined time.

 
Keyword(s): ELECTRO OSMOSIS, ELECTRICAL FIELD, DIRECT CURRENT, MOISTURE, SOIL
 
References: 
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