1. how to surface water through a water plant, water, or soil on the surface or to the absorption into the soil. Where water or moisture flow through to keep the plant. The surface has a lot of political water. Multiple formats as appropriate, but the most common is to provide a detention basin, the water is there, and the khandin around the water to force the flow of water, such as a rectangle, in rice field. The flood water as the water signs, and in this way, the investment value is cu when compared to the other due to the water, this water, flowing water on the surface of the Earth by gravity, so if you want to use the pumps do not need to use a high-horsepower. But the disadvantage is the need to adjust the area to smooth or cant do, which enables a smooth surface that is not smooth before due to the very high fines. In addition, erosion can occur in the case of the very areas that can.
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