The water demand for crops growth is strictly bounded to the การระเหยและการคายน้ำ, which is มีผลต่อ by climatic conditions of the specific สถานที่ตั้ง. The การระเหยและการคายน้ำ in the สถานที่ตั้ง is as high as 2305 มิลลิเมตร per year, which indicates that the water demand in the area is huge. Based on the precipitation, the area is arid and irrigation is necessary. Therefore, the precipitation adds the irrigation amount should be greater than the water demand of the plant. In this station, the soil water moisture can be measured as well but not calculated in this paper. For further research, soil moisture can also be considered in order to obtain more information about the whole cycle of water for the plant.