Abstract

Mulching has been recognized as a beneficial agricultural practice for centuries, with its effects on soil temperature and moisture retention being of particular importance. Mulching has significant effects on soil temperature regulation and its implications for crop growth. The investigation of the effects of mulching on soil temperature regulation and its implications for crop growth globally, in Africa, and specifically in Ethiopia has yielded valuable insights. Across diverse agro-ecological zones, mulching has proven to be a versatile and effective practice for moderating soil temperature, thereby influencing crop growth. Mulching had a pronounced effect in mitigating the extremes of soil temperature, especially during periods of heightened temperature variability mulching with crop residues increased soil temperature and improved soil moisture retention, which had positive effects on crop growth and yield. Findings globally indicate that organic mulches, such as crop residues, contribute to improved soil structure and moisture retention, creating a conducive environment for optimal plant development. In Africa, specifically in Ethiopia, studies have demonstrated the positive impact of mulching on crops like tomatoes and barley, emphasizing the need to consider local conditions and materials for successful implementation. The adoption of best practices, regional adaptations, and supportive policies emerges as a key strategy for maximizing the benefits of mulching on soil temperature regulation and crop growth.