Fertilizers also can be a major source of pollution of streams and groundwater if excessive amounts are applied. Fertilize the lawn once in the spring and again in the fall to produce a beautiful turf without excess growth which demands frequent watering. Apply only 1 pound of actual nitrogen fertilizer per 1,000 square feet of lawn at one time. By using this fertilizer schedule, no other fertilizer is needed to maintain most shrubs and trees in the lawn area. Water Other cultural practices that add to the efficient use of water by plants are periodic checks of the irrigation system, properly timed insect and disease control and elimination of water-demanding weeds.
Water is a limited and fragile resource.
The water used to irrigate landscapes is considered a luxury use of water by many people. Nonessential use of water implies a special responsibility to efficiently use the resource and to protect its quality. Water conservation in the landscape does not mean planting a harsh cactus and rock garden. It means common sense landscaping to protect water quality and quantity. It also means following the principles of water conservation to insure continued prosperity for the residents and businesses of Texas.