Mohammad Al-Sheikh (1)* and Omar Abdulrazzaq (1), and Taha Al-Khalifa (2)
(1). Department of Soil and Land Reclamation. College of Agriculture. Al-Furat University. Deir Ezzor. Syrian.
(2). Department of Field Crops. College of Agriculture. Al-Furat University. Deir Ezzor. Syrian.
(*Corresponding author: Mohammad Al-Sheikh. E-Mail: mohammadalsheikh13190@gmail.com).
Received: 21/12/2023 Accepted:12/02/2024
Abstract:
The research was carried out on a private farm in Deir Ezzor Governorate during the summer season of 2022 to study the effect of adding potassium and organic fertilizer and their interaction on some soil indicators (bulk density, porosity, pH) and the growth and productivity of yellow corn, Ghouta 82 variety. The experiment included two factors: the first is potassium fertilizer (sulphate Potassium) at four levels (0, 100, 150, 200) kg/ha, and the second is organic fertilizer (sheep waste) at four levels (0, 15, 20, 25) tons/ha. The results showed: a decrease in bulk density and soil pH at the level The fourth level of potassium fertilizer (200 kg/ha) and an increase in porosity at the same level. The addition of organic fertilizer also caused a decrease in bulk density and soil pH at the fourth level (25 tons/ha) and an increase in porosity. As for the studied plant characteristics (plant height, grain yield) We note that the fourth level of potassium and organic fertilizers, individually, outperformed the rest of the levels and the control. The interaction of the two fertilizers also had a positive effect on all soil indicators studied, as the interaction of the fourth level of potassium fertilizer with the fourth level of organic fertilizer achieved significant superiority over the rest of the interaction treatments and The unnamed witness. As for plant characteristics, interfering the third levels (150 kg/ha) and fourth levels (200 kg/ha) of potassium fertilizer with the fourth level (25 tons/ha) of organic fertilizer achieved the best results.
Keywords: potassium fertilizer, organic fertilizer, yellow corn, grain yield.
Full paper in Arabic: PDF