How often do you mow the lawn?

Many grasslands and family lawns need to be mowed after two weeks or even a week of heavy rain. However, when they mow their own grass, it sometimes leads to excessive construction and slow lawn growth. Moreover, excessive construction will lead to excessive land exposure and soil erosion, resulting in sludge outside the house after rain, and too little pruning will lead to the need to mow the lawn immediately. It is too expensive to trim it. Don't worry, Bian Xiao has collected and sorted out information for many times. Now I will explain the principle and method of lawn mowing for you.

Pruning principle: the principle of 1/3 should be mastered in lawn mowing. For a tall lawn, it is impossible to trim it to the required height at one time. Every time you mow the grass, you should cut off 1/3 leaves, so that the remaining leaves can carry out normal photosynthesis and supplement assimilation products for the roots. If it is excessively pruned once, the overground part will not provide enough assimilates for the root system, which will hinder the growth of the root system, and the lawn will die due to lack of nutrients.

If the lawn grows too vigorously, the pruning height should be increased as much as possible, and then trimmed at the height of the normal pruning range after three or four days, so as to avoid excessive pruning of mature leaves, causing mild burns and overgrown weeds. When the lawn grows high enough, the lower leaves are blocked for a long time and can't see the sun, which has adapted to the shady environment. Cut off the upper leaves, and the lower leaves will be exposed to the sun, which will cause the leaves to burn due to excessive light.

Determination of mowing frequency The mowing frequency of lawn grass depends on the growth speed of lawn grass. In warm season, centipedegrass needs the least pruning times, followed by Zoysia punctata, Zoysia tenuifolia and Zoysia japonica, and Bermuda grass and carpet grass need the most pruning times. Festuca tenuifolia and Festuca arundinacea in cool-season grass need less pruning times, while other grass species need more pruning times.

The application of fertilizer, especially nitrogen fertilizer, has a great influence on the growth rate of lawn. Generally, the higher the amount of nitrogen fertilizer, the faster the lawn grows and the higher the pruning frequency. In addition, excessive use of nitrogen fertilizer will also weaken the resistance of lawn grass to pests and diseases. Therefore, the rational use of nitrogen fertilizer should not only ensure the demand for nitrogen in lawn, but also prevent excessive application of nitrogen fertilizer. At the same time, combined with the results of soil testing, phosphorus, potassium and iron should be used together to reduce pruning times and ensure the healthy growth of lawn grass.

Pruning frequency is also related to the growing season of lawn. Generally, the cool-season lawn grows faster in spring and autumn, with more pruning times, and grows slower in summer, with less pruning frequency. Warm-season turf grows faster in summer, slower in spring and autumn, and the pruning frequency decreases. Whether it is cold-season grass or warm-season grass, the root system grows slowly and its activity decreases in cold climate, which can not provide necessary nutrition for the aboveground parts. Therefore, the lower limit of the suitable pruning height should be taken during pruning to reduce the nutrient consumption of the aboveground parts.

In a certain range, irrigation amount is related to the growth of lawn grass. The more irrigation, the more times the lawn is mowed. On the contrary, under drought conditions, plants grow slowly, with small growth and less pruning times. Don't mow the lawn when it has just been watered or the soil is wet, so the mowed lawn will appear uneven, and the cut grass clippings will easily gather and cover the lawn, which will suffocate the lawn due to insufficient light and ventilation.