Urban Lawn Irrigation and Management Practices for Water Saving with Minimum Effect on Lawn Quality

摘要

Understanding the response of turfgrass to water and energy is critical in semiarid regions where energy for evaporation is high and water is often in short supply. During the summers of 1979 and 1980 research was conducted at Colorado State University to help in planning efficient urban lawn irrigation techniques. Forty-eight small bucket-type weighing lysimeters were used to measure the effect of various management practices on maximum water use and the response of turf quality to limited irrigation levels. Maximum water use was influenced by mowing height, nitrogen fertility, shade level, grass specie, and to a slight degree, soil properties. Nitrogen-deficient grass showed a linear decrese in visual auality with decrease in irrigation; adequately fertilized grass, however, had minimal reduction in quality when irrigation was decreased.