 In east-central China, which was rice-wheat region, and there had warmer climate, unvaried rainfall, and slightly acidic soil, and favored higher crop yields.In the foremost south-east province of Kwangtung, which is tropical area, peasants engaged in growing fruits and fish farming, and cultivating varied crops with rice.In central, south east, and south west Chine, because of the climate and soil there, a cycle of two crops a year was common while three crops every two years practiced in North.