First, weed control.

At all stages of plant growth, mechanical excavation or chemical herbicide treatment are used irregularly to remove non-target plants.

Second, loosen the soil

Loosening soil in the plugs of trees and shrubs is generally combined with fertilization and weeding to improve soil permeability and promote the growth of trees and shrubs. For lawns with a growing period of more than three years, it is necessary to use a rooter and a puncher to root respectively, once a year in early summer and Mid-Autumn Festival, and once a year in spring.

Third, fertilization.

During the one-year maintenance period, combined with loosening soil and weeding, compound fertilizer 3 kg/plant, solitary irrigation 2 kg/plant, dense shrub belt 5 kg, patch flower/meter were applied to the depth of root distribution in the plug (about 20-30 cm). 8.5 kg/ 100 m compound fertilizer was applied to lawn in spring, early summer, late summer and Mid-Autumn Festival respectively.

Four. irrigate

According to the climate and site conditions of the green area, the irrigation amount of a single irrigation (based on the depth of 50 cm wet planting soil) is tested, and the overall implementation of the year is decided according to the climate conditions at that time to ensure the normal growth of plants.

V. Plastic surgery

The pruning of solitary trees and shrubs should be carried out during the dormant period of trees. Shrub belts and pruned spherical solitary shrubs and flowers should be densely planted. According to the technical requirements of pattern points and crown landscape requirements, pruning is carried out in summer and autumn according to plant growth conditions, and diseased dead branches and sprouting branches are cut off. The lawn should be mowed for the first time when the lawn grows to 10 ~ 12 cm, and the mowing height should not exceed the plant height of 1/3, and the mowing height is generally 5 ~ 8 cm. In dry season or dry windy climate area, the stubble height should be increased by 1 ~ 2 cm. Pruning is usually done every 7 ~ 15 days, and the pruning direction should be changed every time. Clover lawn should be trimmed once after the full flowering period in summer and once at the end of autumn.

Six, pest control

Greening maintenance should promptly investigate the diseases and pests of greening plants in the project area, and make diagnosis and identification. In case of unknown pests and diseases, the epidemic situation should be reported to the local forest protection and plant protection department to prevent the occurrence and spread of major pests and diseases. Scientific and effective preventive measures should be formulated and taken to achieve the purpose of prevention and control by the most economical and effective means. Effectively implement the plant protection policy of "prevention first, comprehensive prevention and control".

Seven, replanting

For the plant defects in the process of greening and maintenance, a replanting plan should be made according to the biological characteristics of the defective plants, and replanting should be carried out in a suitable season to ensure the survival of the plants. Trees and shrubs can be replanted in early spring or autumn, and it is better to replant lawn in May, June and September.

Eight, machine maintenance

Personnel engaged in conservation and conservation should be skilled workers who have been trained in basic skills and knowledge of gardens, familiar with the biological characteristics and cultivation management skills of general garden plants, skilled in various operations of conservation and cultivation management, skilled in various garden machines and tools needed, and able to carry out simple maintenance and repair. Common garden tools should include lawn mower, hedge trimmer, lawn root thinning machine, lawn puncher, spray-pull pesticide sprayer, etc.