Landscape greening design in Harbin The company summarizes experience and shares several lawn maintenance technologies:

1： Trim

The mowing times of lawn plants shall be determined according to different grass species, different management levels and different environmental conditions. Cold season grass shall be pruned regularly and timely to keep the lawn height at 150px~250px.

2： Watering

In addition to the soil freezing period, the artificial turf shall be watered in a timely manner, fully watered every time, and the watering depth shall not be less than 500px. Pay attention to drainage in rainy season, and spray water properly to protect grassland in dry and hot weather, especially in cold season. From late November to early December, it is necessary to fully water the frozen water before freezing.

3： Fertilization:

Fertilization period and amount: before the cold season lawn turns green, the decomposed and crushed organic fertilizer can be applied with the amount of 50 g/m2~150 g/m2, or 10 g/m2 urea or 10 g/m2 diammonium phosphate; During the growth period, phosphorus and potassium fertilizers should be properly applied according to the grass conditions; In late autumn, nitrogen, phosphorus, potassium compound fertilizer or pure nitrogen fertilizer can be applied twice or three times, about 10 g/m2~15 g/m2 each time. The lawn must be evenly fertilized and irrigated in time after spraying.

4： Weed removal and replanting:

A. The artificially planted lawn shall be cleared of weeds in time to maintain the purity of the lawn.

B The use of herbicides must be careful, and should be tested before application.

C. The lawn grass that has been damaged or died due to other reasons shall be replaced and replanted in time to keep the lawn intact and free of bare ground.

D When replanting, the same grass seed as the original lawn shall be replanted; Properly close planting, strengthen management and maintenance, and be consistent with the surrounding lawn as soon as possible.

E Measures such as perforating, ventilation and grass thinning shall be taken for lawns over three years old.

5： Pest control:

A. The prevention and control of diseases and pests on lawn should be based on strengthening maintenance management, focusing on prevention and comprehensive control.

B The cold season grass is the most serious lawn disease. Chemical control should be started in early May, and then spraying should be timely according to the condition.

C The technical operation of lawn pest control must be carried out in accordance with the Pesticide Operating Procedures and with reference to the Quality Standards for Technical Operation of Garden Tree Pest Control.