Variation of Soil Infiltration under Different Tillage Operation
 

M. A. Asoodar^1, S. Boroomand Nasab², A. Bavi³, O. Sabzikar³ and B. Boroomand⁴
 

¹ Department of Machinery, Islamic Azad University, Shooshtar, Iran

² Department of Irrigation & Drainage, Shahid Chamran University, Iran
Corresponding Author: Prof. Dr. S. Boroomand Nasab
e-mail: boroomandsaeed@yahoo.com

³ Department of Irrigation & Drainage, Islamic Azad University, Ahwaz, Iran

⁴ Department of Power & Electronic, Shahid Chamran University, Iran

Abstract

Infiltration is one of the most important parameters in different irrigation methods. Infiltration rate varies according to different agricultural activities such as tillage, planting and transiting machines. In this paper infiltration variations were studied by operating different tillage conditions in Molasany Agricultural area, Ahwaz, Iran. The study was performed in a wheat field with an area of 1.5 hectare. The tillage operation treatments were conventional tillage, minimum tillage and no tillage. The infiltration variations were studied for the treatments in three phases. The phases were before planting, after planting, during growing season as well as after harvesting. The results showed an infiltration variation in these treatments. The highest infiltration rate was observed under conventional tillage and the lowest infiltration rate was under no tillage conditions in the before planting and during the growing phases. No variation was found between the treatments after the harvesting. The infiltration variations in the three stages showed most intake rate was in the before planting time and least infiltration rate was during growing time. In this research Kostiakov infiltration equation was used. The infiltration parameters in the treatments and also in the phases were obtained.

Keywords: Infiltration, Kostiakov, conventional tillage, minimum tillage, no tillage