fang shui
To release water into fields or ponds.
Fang shui refers to the act of introducing water into fields or ponds, typically as part of the irrigation process. In eras when agriculture depended on natural conditions, timing irrigation was crucial for crop growth. The auspicious days for 'fang shui' in the almanac generally indicate days suitable for channeling water for irrigation, hoping for smooth water flow to nourish crops. Although modern automatic irrigation systems exist, in some regions or for specific crops, manual judgment and execution of water release for irrigation are still necessary.