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如何修剪草坪

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Do you want a beautiful landscape? 当然! 从健康的草坪开始. One of the most important factors in growing a healthy lawn is to mow it properly. 方法如下: 

修剪你的草坪. 

红色推式割草机
Mowing is one of the most important factors in maintaining a healthy lawn.

一个高草坪将:

  • shade the soil and protect it from summer’s heat;
  • develop a deep root system; and
  • reduce weed populations since the tall grass blades shade out and smother emerging weed seedlings.

在两点之间修剪草坪.5和3.5英寸. Tall heights are especially beneficial during summer and for low-maintenance conditions. The first lawns that turn yellow 在夏天 are the lawns that are cut too short. 

遵循“三分之一规则”.” Avoid removing more than one-third of the grass blade at any time. Cutting too much of the grass will slow its regrowth. It will expose the soil more, which leads to drought stress and the establishment of more weeds. Using this “one-third rule” as a guide, if you kept your lawn at 3 inches, you would cut it when it is no more than 4.5英寸高.

Thus, the timing for mowing your lawn is dependent on its growth. 你可能需要每隔5分钟割一次草 天 在春天，但每隔5分钟 周 在夏天.

让剪下来的草掉下来. 

Lawn with lawn clippings left on it
Mow frequently when the turf is actively growing. Clumps smother the lawn and contribute to thatch.

You don’t need to collect clippings. 你的草坪需要那些剪枝. The clippings will shade the soil and conserve moisture. The clippings will recycle nutrients to the soil—it is like getting a free fertilization every year.

If you mow regularly, clippings will not create a thatch problem. Clippings are mainly water and they will quickly decompose.

The exception is when your lawn gets neglected and grows very tall. Excessively tall grass when mowed can gather in clumps on the lawn (see photo). 这会使草皮窒息. Tall blades can get more fibrous and become slower to decompose—this can lead to an accumulation of thatch. In these cases, it is wise to collect these clippings.

草干了再割. 

This will reduce clumping and help to mulch the grass blades finer.

使用锋利的割草机刀片. 

A sharp blade will make a clean cut. Dull blades will tear the tips of leaf blades (see photo). The damaged leaf blades will develop a brown tip. Frayed blades lose water more quickly and become more susceptible to diseases. Depending on how much turf you cut, you may need to sharpen or replace your blade every year. 

写的 汤姆卡尔布, 扩展 Horticulturist, North Dakota State University.