There has always been a large demand for water so fields can grow. To satisfy this, people constructed simple irrigation systems. The Youtube channel, Don’t Memorise, discusses some traditional irrigation methods that are still used today.
Hot and dry days require the most irrigation, while rainy ones require the least.
Some sources of irrigation water include wells, ponds, rivers, and dams.
One method is the use of the moat/pulley system. Through human labor, buckets can be pulled from the water source and then spread over the fields. However, the distribution of the water is uneven.
Another method is the chain pump. With buckets attached to a chain, they are lowered into a water source via a turning wheel, and the buckets then empty water into a man-made canal system.
A third method is the Dhekli. By using two logs, and either human labor or a heavy load, buckets of water can be lifted and emptied into the irrigation system. However, some water is wasted.
The Rahat system works by having cattle or people turn a rod and wheel, which will spin another wheel with multiple buckets attached. The buckets extract water and then empty it into the irrigation system.