The document summarizes an agro-ecology workshop held in Siem Reap in 2014, led by Dr. Tan Boun Suy from the APSARA National Authority. It focuses on the use of Khmer Effective Microorganisms (KEM) as a natural stimulant, not a fertilizer, and its applications in composting, rice cultivation, vegetable farming, mushroom production, and animal husbandry. Several experiments demonstrated the benefits of KEM in improving compost quality, increasing crop yields, and reducing poultry mortality. The document also discusses the positive effects of green manure, such as Cassia siamensis and Chromoleana sp., in enhancing crop growth. Recommendations favor KEM and green manure over chemical fertilizers for sustainable agriculture.