Rice is the main food crop half the world's population, especially the staple food of people in Asia. It is a crop that leads to Thailand's largest grossed for the country many billion baht per year. Rice is a plant which likes hot weather and high humidity. It grows in all soil types from sandy soil (sandy loam) to clay. Good conditions to plant rice soil mixed that has pH from 5.5 to 6.5 (dry soil) and 7.0 to 7.2 (wet soil), a reasonable wet soil temperatures is 22 - 32°C throughout during the planting.