Long-term overuse of chemical fertilizers in modern agriculture has led to soil acidification, compaction, and microbial imbalance in most cultivated lands, severely affecting crop yield and quality. High-surface-area calcium hydroxide, as a premium ecological amendment, leverages its high activity and high utilization rate to serve as a core ingredient for restoring acidic soils and enhancing the quality and efficiency of farmland, making it suitable for various soil-improvement applications in crop cultivation.