Ali Al-haj Akeel(1)*, Muhammad Nour Al-dean Al-tenbi(1) and Youssef Khoudary(2)
(1). Rural Engineering Department, Faculty of Agricultural Engineering, University of Aleppo.
(2). Soil Reclamation Department, Faculty of Agricultural Engineering, University of Aleppo.
(*Corresponding author: Ali Al-haj Akeel. E-Mail: ali.hagaqil@gmail.com).
Received: 25/02 /2021 Accepted: 20/04/2021
Abstract
The aim of the experiment was to study the effect of different roller shapes (smooth, sharp discs, serrated discs, reciprocating discs) on loam soil physical characteristic and the productivity of lentil yield. An Experiment conducted at village of Tarhine, in the Al-Urimah area in the governorate of Aleppo, bypassing the rollers over the soil after planting in its various forms, and then comparing it with the treatment of control. The results showed that all forms of roller worked to increase the bulk density value and reduce the porosity value, in contrast to the disc roller treatment that reduced bulk density and increased porosity, as well as all forms of roller worked to reduce the value of soil moisture content, compared with the control treatment. Also, all shapes increased the resistance to soil penetration in different percentage compared to the control, and the highest was in the smooth roller and the lowest in the disc roller. Among the indicators of the ability of the soil to retain water after irrigation, the building factor, the percentage of germination and the productivity of the lentil crop. These indicators were the highest in the treatment of reciprocating roller, while the smooth roller treatment gave the lowest values for these indicators.
Keywords: roller, bulk density, porosity, Physical Properties.
Full paper in Arabic: pdf