With the climate change, the rainfall in the global scope presents a multi change trend. When the rainy season comes, lawn maintenance becomes the focus of the majority of owners. Lawn is one of the places for people's leisure and entertainment. The rainy season is the vigorous growth period of lawn, and also the key period of lawn management. Good lawn maintenance measures can effectively protect the growth of the lawn and extend the service life of the lawn, which is also an important issue that we need to pay attention to. below Landscape greening design in Harbin The company will introduce this problem.

The maintenance and management of lawn in rainy season is relatively more complex. The hot and hot climate brings many disadvantages to plant growth, which must be improved artificially.

① Weeds grow rapidly in rainy season, with many kinds and large quantities, competing with lawn grass for light, water and fertilizer, affecting the normal growth of lawn. The control should be early and small. A small amount of weeds can be removed manually, large areas of lawns can be treated with herbicides, and those hopeless lawns can be thoroughly plowed and re paved.

② When mowing the lawn in rainy season, do not cut too much, and follow the principle of "cutting 1/3 of the amount". Cut 1/3 of the grass height each time. When mowing the lawn, disinfect the blade of the lawn mower to prevent the spread of disease.

③ Fertilization is an important guarantee for the healthy growth of lawn. Generally, ammonium sulfate and compound fertilizer can be applied at intervals. The application amount per square meter varies with grass species, and can be applied after heavy rain or in combination with watering. The topdressing should be moderate, and excessive topdressing will easily lead to plant overgrowth.

④ At the same time, the rainy season is also a period of vigorous growth of the lawn. The grass shall be pruned according to the growth of the grass species. Generally, keep the plant height at 4-5cm. The lawn shall be mowed with a lawn mower. In addition, in order to make the root system of the lawn grow healthily and the stems and leaves above the ground flourish, the soil should be loosened regularly. Large area can be drilled with a hole punch, while small area can be drilled and punctured manually with tools. Generally, the depth of the hole is 2.5 to 5 cm. Some lawns have grown for more than ten years, and their growth momentum is significantly weak. At this time, it is impossible to recover by conservation alone, so we should thoroughly plow and re pave.