Thus, on a premise that the land to be cultivated is 15 rai, it can be roughly divided into:
5 rai for rice field
5 rai for field crops
3 rai for a pond, 4 meters deep with a capacity to store about 19,000 cubic meters of water, the amount sufficient for use in the dry season
2 rai for accommodation and other purposes, bringing the total up to 15 rai.