Irfan Aswad Al-Hamd^(1)* and Abdul Razzaq Jarbu ⁽²⁾

(1) Department of Soil and Land Reclamation – Faculty of Agriculture at Deir Ezzor – AlFurat University, Deir al- Ezzor,Syria .

(2) Department of Soil and Land Reclamation – Faculty of Agriculture at al-Hasaka – Al-Furat University, Al-Hasaka, Syria .

(*Corresponding author: Dr. Irfan Aswad Al-Hamd E-Mail: orfan.alhmad@gmail.com)

Received: 29/05/2020                                Accepted: 5/07/2020

Abstract:

To investigate the effect of irrigation water quality and nitrogen fertilization levels (0, 80, 160, 240) kg N / ha (urea, N, 46%) on soil salinity, and the concentration of some cations and anions in the saturated pulp extract. A pot experiment was carried out using heavy soil and put (5 kg soil / pot , 80 kg P2O5 / ha (calcium triphosphate (P2O5, 46%) and 80 kg K2O / ha (K2O, 50%) potassium) (RCBD) was used with three replicates  (10) seeds were planted and thinned to (5) wheat plants in each pot after germination. The hight tge wheat plant and the dry weight productivity of the wheat pgant (CV . Sham-6) : Increasing the degree of electrical conductivity by increasing the salinity of irrigation water, and the concentration of sodium, chlorine and bicarbonate in the soil, while there was a decrease in the degree of soil reaction. The addition of nitrogen fertilizers reduced the degree of electrical conductivity, the degree of soil interaction and the concentration of chlorine and bicarbonates, while significantly increasing the concentration of sodium in the soil. The interference also led to a significant decrease in the concentrations of chlorine and bicarbonate. Decreasing the plant height and the productivity of the dry matter in the treatment of saline water irrigation, and the characteristic of the plant height increased by increasing the level of nitrogen fertilization, and the highest plant height and productivity of the dry matter in the treatment of interference (WfN3) were achieved. The lowest plant height and dry matter yield in an interference treatment (WdN0).

Key words: irrigation water quality, nitrogen fertilizer, dry matter productivity

Full paper in Arabic: PDF