Integrated Effect of Organic, Biological, and Chemical Fertilizers on Roselle's (Hibiscus sabdariffa L.) Growth and Quality Characteristics

Badakhshan, Somayeh; Tohidi-Nejad, Enayatollah; Ghanbari, Jalal; Parsa Motlagh, Bahareh

doi:10.22034/jmpb.2026.371136.2076

Integrated Effect of Organic, Biological, and Chemical Fertilizers on Roselle's (Hibiscus sabdariffa L.) Growth and Quality Characteristics

Articles in Press

Document Type : Research Paper

Authors

¹ Department of Plant Production and Genetics, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran

² Seed and Plant Certification and Registration Institute (SPCRI), Agricultural Research, Education & Extension

³ Department of Agronomy and Plant Breeding, Faculty of Agriculture, University of Jiroft, Jiroft, Iran

10.22034/jmpb.2026.371136.2076

Abstract

This study investigates the effects of integrated nutrient management on Roselle's quantitative and qualitative traits (Hibiscus sabdariffa L.). The experiment assessed various treatments in a randomized complete block design with three replications over the 2021-22 and 2022-23 cropping seasons in the Jiroft region of Iran. These included 100% recommended poultry manure (PM), 100% recommended chemical fertilizer (CF), inoculation with arbuscular mycorrhizal fungi (AMF), application of Azospirillum (Az), their combined application (AMF + Az), and various combinations with reduced organic and chemical fertilization. Results showed that significant impacts of fertilizer treatments on Roselle's growth and quality traits. Specifically, the treatments of 50% PM + Az and 50% PM + 50% CF yielded the highest plant height, total number of bolls per plant, bolls fresh weight per plant, sepal dry weight, biomass yield, and sepal harvest index. Moreover, the highest quality traits were observed in the 50% PM + Az and 50% PM + AMF + Az treatments. These integrated treatments are recommended for reducing CF usage while enhancing Roselle's production and quality.

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