Crop diversification is a critical strategy for enhancing agroecosystem resilience and sustainability as global food-demand is projected to rise by 50% by 2050. Intensive monoculture practices have degraded global soils, reduced fertility, and exacerbated biodiversity loss. Literature for this narrative review was selected through a systematic search of global databases, including FAO, Web of Science, and Google Scholar, focusing on peer-reviewed studies and institutional reports published between 1993 and 2025 that evaluate the intersection of diversification practices and soil health. This study examines intercropping, crop rotation, agroforestry, and conservation agriculture to optimize resource use, mitigate environmental degradation, and ensure food security. Intercropping reduces pest incidence boosts nitrogen fixation enhance soil organic carbon and water retention. Agroforestry integrates trees with crops, sequester carbon and improve soil structure, these practices reduce chemical input reliance, improve yield, and support biodiversity. Precision agriculture, using remote sensing and data analytics, optimizes crop combinations, while policy incentives, such as subsidies for pulses, promote adoption. Community-based approaches, including Farmer Field Schools and seed banks, enhance knowledge dissemination. Technological innovations (remote sensing, IoT, GIS) and supportive policy frameworks, including subsidies and community-based extension models, enhance adoption and scalability of diversified systems. This multifaceted approach addresses water scarcity, soil degradation, and climate variability, fostering sustainable agricultural systems vital for long-term food security and environmental conservation.
Meena et al. (Tue,) studied this question.