Border-Check irrigation is the dominant technique for irrigating pasture. The landowner pays the irrigation district assessments and does the irrigating himself. The Romans improved crop growing by irrigating plants using aqueducts to transport water. Often, the water that farmers use for irrigating crops is contaminated with pathogens from sewage. This will undermine the ecological irrigating and fertilising services of the river. Salinity in soil is caused by irrigating with salty water. This canal originally served the purpose of irrigating farm lands. It turned out that the channels drained the peat forests rather than irrigating them. Tharu people are mainly involved in farming, thus irrigating fields is important. This amount of water is adequate for irrigating 140 million hectares. Irrigating trees during dry periods can reduce the risk of water stress and death. Pachacuti then built irrigating channels, cultivated terraces, made roads and hospices. The fountains actually use less water than irrigating the golf course did. Persian Water-Wheel, used for irrigating Nubia. The height of the irrigating fluid above the patient should not be excessive.