Evan  Dayoub*⁽¹⁾, Jihad Ibrahim ⁽¹⁾, Samar Hasan ⁽²⁾, and Ola Kajo ⁽³⁾

(1).Department of Soil and Water Sciences, Faculty of Agricultural Engineering, Tishreen University, Lattakia, Syria.

(2). Agricultural Scientific Research Center (mathematical modelling of the solutions movement in soils), Lattakia, Syria.

(3). Department of Field Crops (oil crops), Faculty of Agricultural Engineering, Tishreen University, Lattakia, Syria.

(*Corresponding Author: Evan Dayoub, E. mail: dayoubevan@gmail.com).

Received: 29/01/2024                          Accepted:25/05/2024

Abstract: 

This research was conducted in Latakia (Fideo Livestock farming) in 2022 to study the effect of three olive mill wastewater rates (0-5-10 l.m^-2) in some soil’s physical and hydronomical characteristics and soybean growth and productivity characteristics growing in a loamy soil. The experiment showed a significant decrease in the bulk density of the examined soil in both depths (0-20 and 20-40 cm) with increasing OMWW rates. OMWW level of 10 l.m^-2 in soil depth 0-20 cm achieved the highest value of total porosity 52.10 and pores containing available water 16.46. Similarly, the OMWW level of 10.l.m^-2 achieved the heday value of total porosity 44.86 in soil depth 20-40 cm, while the maximum value of pores containing available water15.87 was attained at the level 5 l.m^-2 of OMWW. On the other side, the treatment with 10 l.m^-2 of OMWW resulted in the best results of growth, productivity, and protein content, where the increments in leaf area and protein content were 28.22%,18.75% respectively, whilst productivity reached 38.25% and 63.22% when using 5 and 10 l. m^-2 respectively.

Keywords: bulk density, moisture tension, plant available water- olive mill wastewater, soybean.

 Full paper in Arabic: PDF