Why is central asia and southeast asia ideal places for growing rice?

They are perfect since farming has been the primary monetary movement in China for a great many years. Around 60% of all specialists in China are ranchers. About the greater part of China's cropland is in the eastern half and the nation. In southern China, rice, sweet potatoes, and tea are real products. Wheat is the main yield in the north. 
Other than that point, regular storms bring the measures of water required for developing rice in those locales.