Effect of foliar spraying with nano composite fertilizers and organic fertilizer (Optimus Plus) on growth traits varieties of corn

Abstract

The experiment was conducted in the field during the 2022 at the Telafer site in two seasons (spring and autumn) to study the effect of two varieties of corn (Furat and Dejla) and eight levels of fertilizers (spraying with water only and adding 120 kg N₁₅P₁₅K₁₅.ha^-1 of traditional compound fertilizer and spray 1.5 and 3 g.L ^-1 of N₂₀P₂₀K₂₀ nano fertilizer and spray 1 and 2 ml.L^-1 of organic fertilizer Optimus Plus and spray 1.5g.L^-1 of N₂₀P₂₀K₂₀ nano fertilizer +1 ml.L^-1 of organic fertilizer and spray 3g.L^-1 of N₂₀P₂₀K₂₀ nano fertilizer +2 ml .L^-1 of organic fertilizer) . Use the R.C.B.D. design According to the split-plate system with three replications. The results showed that the Dejla variety was superior in the percentage of field emergence and plant height, while the Furat variety was superior in leaf area and leaf area index in both seasons and the number of plant leaves in the autumn season. As for fertilizers, the treatment of 2 ml.L^-1 of organic fertilizer achieved the highest average in plant height and leaf area in the two seasons, the percentage of field emergence in the spring season and stem diameter in the autumn season, while the same treatment achieved the highest rate in the number of plant leaves, and the leaf area index. In the spring season and the treatment of 3g.L^-1 of N₂₀P₂₀K₂₀ nano fertilizer + 2ml.L^-1 of the organic fertilizer in the number of plant leaves and leaf area index in the autumn season. The effect of bilateral interaction was significant on all growth traits.