Faten Samir Airangy1*, Saleh Kbaili1 and Abdelaziz Bouaissa2
1 Department of Field Crops, Faculty of Agricultural Engineering, Lattakia University, Syria.
2 Department of Soil and Water Sciences, Faculty of Agricultural Engineering, Lattakia University, Syria.
(*Corresponding author: Faten Airangy, Email: faten.airagy@gmail.com, Tel: 0941524880).
Received: 23/ 4/ 2025 Accepted: 21/ 7/ 2025
Abstract
The research was carried out in Al-Drouqiat village, Lattakia Governorate, Lattakia University for the year 2023-2024 to study some qualitative characteristics of sesame plants and oil production under the influence of five levels of phosphate fertilization (0, 40, 60, 80, 100) kg of triple superphosphate fertilizer TSP containing 46% of phosphorus pentoxide P2O5, and four concentrations of zinc spraying (0, 30, 60, 90) mg of zinc sulfate fertilizer Zn2SO4. The experiment was conducted according to a randomized complete block design with a single split plot arrangement and three replicates. The main plots included phosphate fertilization, while the secondary plots included zinc spraying. The results showed that the phosphate fertilization level of 100 kg TSP 46% P2O5/ha significantly outperformed all other fertilization levels, and the control had the highest mean for the trait he percentage of oil (52.07%), protein (23.13%), and ash (3.80%) in the seeds, and the highest oil yield was recorded at the level of 100 kg P2O5/ha (653.46 kg/ha), while the control achieved the highest average for the characteristics of carbohydrate percentage (12.29%), moisture (7.17%), and fiber (15.48%). The zinc spray concentration of 60 mg Zn2SO4/L gave the highest average of oil percentage (49.36%), protein (22.11%), and ash (3.78%) in the seeds, while the concentration of 90 mg Zn2SO4/L gave the highest oil yield (514.80 kg/ha). In contrast, the control achieved the highest average of carbohydrate percentage (10.80%), moisture (7.25%), and fiber (13.08%) in the seeds. The interaction (100 kg TSP 46% P2O5/h × 60 mg Zn2SO4/L) achieved a significant superiority with the highest value for the oil percentage trait (53.76%), protein (24.05%), and ash (3.90%) over all other interactions. The interaction (100 kg TSP 46% P2O5/h × 90 mg Zn2SO4/L) gave the highest value for the oil yield trait (715.55 kg/h), and there were no significant differences between it and the interaction (100 kg TSP 46% P2O5/h × 60 mg Zn2SO4/L) regarding the oil yield trait.
Keywords: sesame, triple superphosphate, zinc sulfate, protein, oil.
Full paper in Arabic: pdf