Farmers pumping river water and spraying the water onto their fields of growing crops is known as crop irrigation.
Irrigation
Farmers take or divert water from a river for irrigation purposes, and to water their crops.
They dug holes to move it and they built dams to make sure they had enough water but there crops didn't flood.
Irrigation
Rivers provide water for irrigation, allowing farmers to grow crops even in dry seasons. Additionally, rivers help transport nutrients and sediment to farmlands, enriching the soil and promoting crop growth. In some cases, rivers also serve as a means of transportation for farmers to move their harvest to markets or processing facilities.
Gravity, rivers flow downhill
Irrigate [water] their land to grow crops.
Rivers
The rivers were so important to the farmers in Mesopotamia because then the farmers can get water for their crops in order to trade for goods and services.
They used the rivers' water for irrigation.
they used rivers and streams to collect water
Replenish the soil and provide water for the crops.