October 22, 2025Open Access

Comparative Impacts of Organic and Inorganic Fertilizers on the Restoration of Rangeland in the Semi-Arid Regions of Saudi Arabia

SESahar EzzatSudan University of Science and Technology AGAbdelaziz Karamalla GaiballaSudan University of Science and Technology MMMosaed A. MajrashiKing Saud University

Key Points

Organic fertilizers significantly enhanced plant height and stem diameter compared to inorganic fertilizers across multiple regions.
Increases in plant height reached 159% under organic fertilization in Al-Fuhaihil, while inorganic methods showed lower efficacy.
Utilizing a randomized complete block design, three native rangeland species were tested across various semi-arid locations in Saudi Arabia.
The findings suggest that organic amendments effectively restore soil health and promote sustainable rangeland management.

Abstract

Rangeland degradation in arid and semi-arid regions is a serious ecological challenge, damaging soil health and reducing plant growth. This study evaluated the comparative effects of Almarai organic and inorganic fertilizers on the growth performance of three native rangeland species across three semi-arid locations of Saudi Arabia, including Al-Tamiryyat (Al-Jouf), Al-Sahwa (Al-Madina), and Al-Fuhaihil (Thadiq), in a randomized complete block design. The study revealed that fertilization significantly influenced plant height and stem diameter, with organic fertilizers yielding superior results compared to inorganic treatments across most regions (p 0.05) but was significantly improved in Al-Sahwa region (p < 0.001) under Almarai organic fertilization. Conclusively, results of current research suggest that organic fertilization is effective way of restoring rangelands in arid environments compared to inorganic amendments.

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