This uses pipes which sit below the soils surface. Slowly they drip a constant supply of water directly to the roots of the crops. It reduces the growth of weeds as seeds lying on the grounds surface don't get enough water to germinate. Although it could be used with every crop type, the cost of installing the drip tubes means that it is only widely used with high-value vegetable crops and turf. It can be used above the surface but usually on a smaller scale (greenhouses, gardens). Drip irrigation reduces water wastage from surface run-off, or evaporation, unlike sprinklers.
