Application and Impacts of Mulch Installation Techniques on Indian Horticulture: An In-depth Review

Mulching, an ancient agricultural practice, has emerged as a critical tool in modern horticulture due to its numerous benefits. This review examines the application and impacts of mulch installation techniques on Indian horticulture, with a focus on understanding different mulch types, traditional and modern techniques, advantages, potential impacts on crop growth and yield, and environmental implications. The introduction elucidates the definition and historical importance of mulching in horticulture and sets the objective of the review: to comprehensively assess various mulch installation techniques and their impacts on Indian agriculture. The subsequent sections delve into the different types of mulches used in Indian horticulture, categorizing them into organic, inorganic, and biodegradable materials. Each type is discussed in detail, including its benefits and concerns, providing a holistic understanding of the materials available to farmers. Traditional mulching techniques, such as hand-spreading and the use of simple tools, are explored, highlighting local adaptations and indigenous practices that have been prevalent in Indian agriculture for generations. Modern mulching techniques, like automated mulch spreaders, plastic film laying machines, and mulch mats/sheets, are then examined, emphasizing their potential to enhance efficiency and productivity in contemporary agriculture. The review goes on to explore the advantages of mulching techniques, including soil moisture retention, weed growth reduction, temperature regulation, erosion control, and organic matter addition in the case of organic mulches. These benefits underscore the vital role of mulching in sustainable and resource-efficient farming. The potential impacts of mulching on crop growth and yield are analyzed, focusing on improved germination and early growth, reduced water requirements, enhanced pest and disease resistance, and increased yield and quality of produce. The effects on different crop types, such as fruits, vegetables, and flowers, are also explored, elucidating the versatility of mulching techniques across diverse agricultural contexts. Furthermore, the review investigates the environmental impacts of various mulch materials, emphasizing benefits such as soil structure improvement, reduction in water runoff, and carbon sequestration. Simultaneously, concerns, including plastic pollution from inorganic mulches, decomposition rate and residues from organic mulches, and impacts on local biodiversity, are discussed. Finally, recommendations for future research and practice are proposed. These include exploring new biodegradable mulch options, developing cost-effective installation techniques, implementing training programs for farmers and horticulturists, and formulating policies and guidelines for sustainable mulching practices. By addressing these challenges, the potential of mulching in contributing to sustainable and productive agriculture can be fully realized.