Turf plays a vital role in urban greening, offering a lush backdrop to landscapes and providing essential ecological benefits. However, after the completion of lawn projects, poor maintenance often leads to yellowing or even patchy baldness, which significantly affects the visual appeal. To achieve an attractive lawn, proper post-planting management is crucial and should be carefully implemented in several key areas.
First, rational irrigation is essential for maintaining a healthy lawn. Watering directly impacts the appearance and vitality of the turf. During winter and early spring, especially in northern regions, it's important to water thoroughly to help the grass recover and prepare for growth. In the normal growing season, watering should follow the principle of "don’t water unless necessary, and when you do, water deeply." The best time for watering is between 8–16 hours in spring and autumn, and 10–15 hours in summer. The depth should reach about 10 cm to encourage deep root growth, avoiding both overwatering (which can cause root rot) and underwatering (which leads to shallow roots and weak growth). In winter, applying antifreeze water is also necessary to protect the lawn from freezing damage and ensure it regains its green color in spring.
Second, regular and proper mowing is important. Mowing helps promote root development, control weeds, and reduce pest and disease problems. It should be done at a height of 3–5 cm depending on the lawn’s use. Mowing not only keeps the grass neat but also prevents weeds from spreading by cutting off their growing points. Additionally, it helps remove diseased leaves, reducing the spread of infections.
Third, effective weed control is critical. Weeds can quickly take over a lawn if left unchecked, degrading its quality. Manual weeding is suitable for small areas, while chemical herbicides may be used for larger infestations. It’s important to test any herbicide before large-scale application and choose non-harmful, environmentally friendly options.
Fourth, fertilization should be done strategically. Frequent mowing and watering can deplete soil nutrients, so regular feeding is necessary. Slow-release nitrogen-based fertilizers combined with multi-element compounds are ideal. Applying green manure in spring and a balanced fertilizer in late autumn supports strong growth and helps the lawn stay green throughout the year.
Fifth, pest and disease control must be proactive. Over-seeding to achieve quick coverage can lead to dense, weak turf that is more prone to pests. Regular monitoring and timely intervention are essential. Fungicides like carbendazim and metalaxyl can be used to prevent diseases, while insecticides such as trichlorfon, deltamethrin, and phoxim can manage pests like armyworms and grasshoppers. Foliar sprays of urea can also aid in recovery and growth.
Lastly, aeration and top-dressing help maintain healthy soil structure. Compacted soil can hinder root growth, so puncturing the lawn at the right time improves drainage and promotes deeper root systems. Combing the lawn removes excess grass and reduces density, further preventing disease and pest issues.
By following these comprehensive practices, lawn managers can ensure a vibrant, healthy, and visually appealing landscape that stands the test of time.
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