The Harappan economy's foundation was agriculture, according to historians and archaeologists. They employed sophisticated farming methods, including irrigation to boost yields. Crops such as wheat, barley, and peas were grown, and cotton cultivation is also evidenced. Water management, utilizing canals and wells, was vital for agricultural success. The combination of fertile land and technological advancements enabled the Harappans to sustain urban populations and participate in trade. Standardized weights and measures, noted by historians, indicate a well-structured agricultural system that supported both urban and rural communities.