Investigating the effect of humic acid and amino acids on the quantitative and qualitative yield of coriander (Coriandrum sativum L.)

Articles in Press

Document Type : Research Paper

Authors

1 Assistant Professor, Soil and Water Department, Agricultural and Natural Resources Research and Education Center-Hamadan Province-Iran

2 Researcher and Head of Soil and Water Department, Agricultural and Natural Resources Research and Education Center, Hamadan Province, Iran

3 Master's student at Jahad Daneshgahi Institute of Higher Education - Kermanshah - Iran

Abstract

To improve the efficiency of water and nutrient absorption, and consequently enhance the quantity and quality of crop yield, various growth stimulants, such as humic acid and amino acids, are widely utilized. This study investigates the effects of humic acid and amino acids on the quantitative and qualitative characteristics of coriander (Coriandrum sativum L.) in a farm located in Deh Delian village, Hamadan city, during the spring of 2024. The experiment was designed as a factorial study based on a randomized complete design with three replications. The two factors examined were: humic acid applied at three concentrations (control—no humic acid, 2 and 4 per liter) and amino acids applied at three concentrations (control—no amino acids, 2 and 4 per liter). The results indicated that both humic acid and amino acid treatments significantly affected most coriander traits. The highest values for the number of stems (8.22), shoot length (41.22 cm), root fresh weight (8.88 g), root dry weight (3.24 g) and root volume (10.33 cm3), one-thousand-seed weight (10.30 g), and relative water content were (79.19) obtained from the 4 per liter amino acid and 4 per liter humic acid treatment, and the lowest values observed in the control group. The longest root length (17.88 cm) was observed in the 4 per liter amino acid and 4 per liter humic acid treatment, while the shortest root length occurred in the control. ......

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Iranian Journal of Soil and Water Research

Articles in Press, Accepted Manuscript
Available Online from 03 September 2025

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