Response of Helianthus annuus L to Organic, Bio- and Mineral Fertilization: Implications for Phyto-Architecture and Environmental Variance

Abd Al-Aty SolimanAhmed, Dina; Sayed Sleem Battah, Mohammad

doi:10.21608/esm.2025.459446

Response of Helianthus annuus L to Organic, Bio- and Mineral Fertilization: Implications for Phyto-Architecture and Environmental Variance

Document Type : Original Article

Authors

¹ Literature of ornamental, medical and aromatic plants, department of plant production, Faculty of environmental agricultural science,Arish university, Egypt.

² Administration manager of exports, general organization for exports and imports control, Al-Arish, North Sinai, Egypt. Corresponding E.Mail Dena.soliman.Aru.edu.eg

10.21608/esm.2025.459446

Abstract

Literature of ornamental, medical and aromatic plants, department of plant production, Faculty of environmental agricultural science,Arish university, Egypt. Arid conditions make sustainable agriculture demand effective fertilization strategies which are sustainable in terms of productivity as well as environment. The research was done in North Sinai, Egypt, in the summer of 2021 and 2022 to assess the phyto-architectural and phenological performance of two sunflower varieties (Sakha-53 and Giza-102) to various organic, bio, and mineral fertilization levels. The experiment was set up in the form of split-split-plot with repeated measures to determine the effects of two seasons, the main-plot factor being the two organic sources (mixed sheep/goat manure and chicken manure) and the sub-plot factor being the variety of bio- and mineral fertilizers and the split-split-plot factor being the two cultivars. It showed that Sakha-53 performed better than Giza-102 on most characteristics and there was overall improvement in the second season because of the long-term residual fertilization effects. The mixture of chicken manure and EM-1 biofertilizer was most effective, which resulted in the flowering process speeding up significantly, a decrease in time of vegetative growth, and a significant increase in structural characteristics of stem diameter (2.14 cm), head diameter (24.27 cm), root diameter (6.13 cm), and leaf length (34.47 cm). Analysis of environmental variance indicated that certain characteristics such as stem diameter remained stable and could therefore be used to select breeding and leaf characteristics were very flexible and sensitive to fertilization. These findings emphasize the value of integrated nutrient management for enhancing sunflower productivity in arid regions.

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