What do you mean by flood?

? This is a way to irrigate farmland in rural areas in the past. No matter whether every part of a piece of land is dry or not, it is irrigated by a lot of water.

Technical measures to replenish water needed by crops for land. In order to ensure the normal growth of crops and obtain high and stable yield, it is necessary to provide sufficient water for crops. Under natural conditions, it is often because of insufficient precipitation or uneven distribution that the water demand of crops cannot be met. Therefore, artificial irrigation must be carried out to make up for the shortage of natural rainfall. ?

Irrigation means watering the land with water. The irrigation principle is to determine the irrigation amount, irrigation times and time according to the water demand characteristics, growth stage, climate and soil conditions of medicinal plants, and to irrigate in a timely, appropriate and reasonable manner. Its types mainly include pre-sowing irrigation, seedling promotion irrigation, growing period irrigation and winter irrigation.