1. Water the grass only when necessary. Saving water is not the only reason to limit the amount of lawn watering. Too much watering is not good for lawn health, but easy to breed fungi and diseases. Some kinds of grass need more water than others. Environmental factors such as temperature, humidity and wind will significantly affect the frequency of watering your lawn.
2. Deep watering is beneficial to the growth of deep roots. Frequent shallow watering will encourage weeds, leading to shallow roots of plants, which are more susceptible to drought and some diseases. Water plants when they are really needed, which makes the roots of grass grow downward, but enough water must be used every time so that the watered water can pass through the whole root system.
3. Drink water in the morning. When you use the sprinkler, some water droplets will evaporate before landing. On hot and windy days, a lot of water evaporates before it reaches the plants. In order to reduce evaporation loss, water between 4 am and 9 am, when the air is still cool and the wind is usually calm.
4. Adjust the nozzle before watering. Aim the nozzle at the right place, not including the sidewalk or street part! A little adjustment of your sprinkler can save a lot of water. Ideally, you shouldn't dump it on the sidewalk, yard, street or driveway at all.
The above is how to irrigate the lawn to save water and be effective. I hope it will help netizens.