Therefore, while controlling people's consumption with sumptuary decrees, Yoshimune implemented many rice-related reforms, such as development of new rice fields for increasing the rice harvest, adoption of "Jomen ho" (the taxation system whose rate was determined by calculating the average rice harvest over the past 5, 10, or 20 years) for stabilizing the income of the Edo bakufu, issuance of "Agemai-rei" (the decree ordering 'daimyo' to pay 100 koku rice for every 10 thousand koku it had), and permission for Dojima Rice Exchange, so Yoshimune was given a nickname of "Rice Shogun."
そのため吉宗は、倹約令で消費を抑える一方、新田開発による米増産、定免法採用による収入の安定、上米令、堂島米会所の公認など、米に関する改革を多く行ったため、「米将軍」の異名を取った。