Abboud Aljasim ^(1)*

(1). Horticulture-Agriculture Faculty- Alfurat University, Syria.

(*Corresponding author: Dr. Abboud aljasim. Email: abboudaljasim@gmail.com).

Received: 1/12/2022      Accepted: 20/03/2023

Abstract: 

The research was carried out during the two growing seasons 2021 – 2022 in RAQQA governorate. The town of KDAIRAN, which is located 30 km from RAQQA city, with the aim of studying the effect of spraying three concentrations of fulvic acid (1000 – 1500 – 2500) ppm on the morphological, specific and productive traits of cowpea plant. The experiment was designed according to a complete randomized block design with three replications. the results showed that the foliar spraying of the cowpea plants with fulvic acid at a concentration of (1500-2500) ppm contributed to improve the morphological traits of the cowpea, as the plant reached a length of (115 – 105) cm, respectively, and the area of the leaf surface to (21346 – 15520) cm2, respectively. Also in obtaining the best qualitative characteristics of cowpea plant, where the wet weight of the shoot reached (3.47 – 3.27)g and the dry weight (0.54 – 0.47)g, respectively. The best productivity (3570) kg/d was obtained with spraying 2500 ppm of fulvic acid

Key words: Fulvic Acid, Cowpea, Dry Weight, wet Weight, leaf surface

Full paper in Arabic: pdf