Lubna Albashshe1*
1 General Commission for Scientific Agricultural Research, Dier Azzor Reseach Center, Syria.
(*Corresponding author: Lubna Albashshe, Email: lubnabashshe@gmail.com, Tel: 0982368870).
Received: 2/ 5/ 2025 Accepted: 29/ 9/ 2025
Abstract
The experiment was carried out at the Saalo Research Station of the Scientific Agricultural Research Center in Deir ez-Zor with the aim of determining the effect of adding organic amendments on the productivity of sesame (Sesamum indicum L.). The sesame crop was grown for the agricultural season (2021-2022). The experiment was designed using the completely randomized block method (RCBD), with three replicates for each treatment. Three types of fertilizers were used: decomposed cow manure (O) added at three rates (10, 20, 40) tons/ha, compost fertilizer (CO) made from crop residues: added at three rates (10, 20, 40) tons/hectare, and humic acid (H) was added to the soil (33) days after planting at a fixed concentration of (3 g.L-1) at three levels: (1, 2, 3) liters. per experimental plot compared to adding chemical fertilizer, which was added according to the recommended amount of Before the Ministry of Agriculture, in addition to the control treatment: no types of organic or mineral fertilizers were added. The results showed that the chemical N fertilization treatment was significantly superior to all treatments, and the highest value for the average grain yield was recorded at (95.67 kg/dunum). Although the (N) treatment was superior to the organic amendment treatments, it did not differ significantly from the (H2) and (CO3) and (O3) treatments, as each of the treatments gave yields that averaged (78.5), (75) and (72.3) kg/dunum, a difference from the (N) treatment (17.95, 21.6, 24.4) % respectively. As for the treatments organic amendments, there were significant differences between them. The increase in production was proportional with the increase in the amount organic amendments, except for (H2) treatment it was morally superior to the (H2) treatment.
Keywords: sesame, cow manure, compost, humic acid.
Full paper in Arabic: pdf