Muhammad Abdel Aziz (1) Ammar Zyoud (2) , and Fatima Antar (1)*
(1). Department of Crops, Faculty of Agriculture, Tishreen University, Lattakia , Syria.
(2) Agricultural Research Centre in Al-Ghab, General Commission for Scientific Agricultural Research, Hama, Syria.
(*Corresponding author, Fatima Antar, Email: anter fatemah@gmail.com)
Received: 30/05/2021 Accepted: 14/10/ 2021
Abstract:
A field experiment was conducted in Al-Ghab to study the different effects of irrigation schedules and fertilization with potassium and zinc and the interaction between them on some qualitative indicators of sorghum cultivar (Zraa 7). This was done by designing the split complete random sectors for two times and three replications, where irrigation dates were distributed to the main plots (7,14,21 days) in addition to the control treatment (14 days without adding potassium and zinc fertilizer), while the secondary treatments included potassium fertilization rates (60,80, 100 kg/ha), and sprayed with zinc (0.4, 0.8, 1.2 kg/ha). In Salhab village in Al-Ghab area – Hama governorate, during the agricultural season 2020. The results indicate that the highest percentage of protein was obtained in the leaves (11.7%) when using the 7-day irrigation schedule with K100 and Zn0.4 potassium fertilization (noting that the zinc and potassium added are impure). And carbohydrates (24.99%) at irrigation time of 21 days with potassium K100 and Zn1.2 fertilization dose. And for fat (21.61%) when the irrigation date is 7 days with the dose of potassium fertilization K80 and zinc Zn0.8 and for moisture (9.21%) the date of irrigation is 7 days with the dose of potassium fertilization K60 and zinc Zn0.4 (9.21%). And for ash (11.82%) when the irrigation time overlapped 7 days with the potassium K80 and Zn0.4 fertilization dose.
Key words: potassium, White corn, irrigation, fertilization, zinc.
Full paper in Arabic: pdf