The document presents an initiative on Conservation Agriculture in Cambodia, focusing on sustainable practices for upland crops like cassava, maize, and soybean. It promotes Direct Seeding Mulch-Based Cropping Systems (DSMS), which involve minimal soil disturbance, permanent soil cover, and crop diversification to improve soil health and reduce nutrient loss. Research on crop diversification and smallholder involvement shows promising results, enhancing yields, labor efficiency, and environmental benefits like water retention and carbon sequestration. The approach encourages collective learning and long-term sustainability in Cambodian agriculture.