International Journal of Enology and Viticulture ISSN: 2756-3685 Vol. 9 (5), pp. 001-006, May, 2022. © International Scholars Journals

Full Length Research Paper

Investigating the effects of humic acid and acetic acid foliar application on yield and leaves nutrient content of grape (Vitis vinifera)

Ahmad Asgharzade¹* and Mahdi Babaeian²

¹Department of Agriculture, Shirvan Branch, Islamic Azad University, Shirvan, Iran.

²Department of Agriculture, Bojnourd Branch, Islamic Azad University, Bojnourd, Iran.

Accepted 23 April, 2021

Abstract

In order to study the effects different concentration of humic acid and acetic acid foliar application on yield and leaves nutrient content of grape (Vitis vinifera), a field experimental in randomized complete block design with three replications was conducted in 2010. Foliar application treatments were T₁: Control, T₂: Acetic acid (1000 mg kg ^-1), T₃: Humic acid (300 mg kg^-1), T₄: Acetic acid (1000 mg kg^-1) + Humic acid (300 mg kg^-1). Obtained results showed that: Spray treatments had significant effect on yield, cluster length and diameter and Iron, Potassium and Phosphor leaves content of grape. Maximum and minimum amount of fruits yield was obtained in T₃ (Humic acid) and T₁ (Control) treatments respectively. Highest amount of length and diameter of grape cluster and leaves Iron content was recorded in T₄ (Acetic acid) + Humic acid) but maximum of phosphor and potassium was recorded in T₃ (Acetic acid) and minimum amount of all characters was recorded in T₁ (Control).

Key words: Humic acid, acetic acid, zinc, foliar application, grape, yield.