Turf plays a vital role in urban greening, offering a lush backdrop for landscapes and providing essential ecological benefits. However, after installation and project acceptance, poor maintenance often leads to yellowing or even bald patches in the lawn, significantly diminishing its aesthetic appeal. To achieve a vibrant and healthy lawn, proper post-planting management is crucial and should focus on several key areas.
First, rational irrigation is essential for maintaining a beautiful lawn. Watering directly impacts the appearance and health of turfgrass. During winter and early spring, especially in northern regions, it's important to water adequately to ensure the lawn turns green. This helps the grass sprout properly and lays a strong foundation for growth.
During the growing season, watering should follow the principle of "do not water if not needed, but water thoroughly when required." When the lawn appears dark green, it’s a sign that it needs water. The best time to water is between 8-16 hours during spring and autumn, and 10-15 hours during summer. The depth of watering should be around 10 cm. Overwatering can cause root rot, while under-watering results in shallow root systems, making the lawn weak and less drought-resistant.
Another important aspect is applying anti-freeze water before winter. In colder regions, insufficient soil moisture can hinder the lawn from regreening in spring and may even lead to large-scale death. Therefore, sufficient anti-freeze watering with a depth of over 10 cm is necessary.
Second, proper mowing is critical. Lawn grass can tolerate frequent cutting, which promotes healthier growth, controls weeds, and reduces pest and disease problems. Mowing height should be kept at 3-5 cm depending on the lawn’s use. Regular mowing redistributes nutrients, encourages root development, and stimulates tillering, strengthening the grass and increasing its resistance.
Mowing also acts as an effective method for weed control, especially in the early stages. Most weeds, particularly broad-leaved ones, are sensitive to cutting, so regular mowing can eliminate them without harming the lawn. Additionally, mowing helps prevent diseases by removing infected leaf tips where pests and eggs often reside.
Third, weed control is essential for maintaining lawn quality. Poor weed management can lead to premature deterioration or complete loss of the lawn. Control methods should combine manual, biological, and chemical approaches. For small lawns, manual weeding is effective and safe. Chemical herbicides should be used cautiously, tested first, and chosen carefully to avoid harm to the lawn.
Fourth, appropriate fertilization is necessary due to nutrient depletion from frequent mowing and watering. Slow-release nitrogen fertilizers combined with multi-element compound fertilizers are ideal. Applying green manure in the growing season and late autumn helps maintain the lawn’s health and promotes robust growth.
Fifth, pest and disease control must be proactive. Over-seeding to achieve quick coverage can lead to dense, weak turf that is more susceptible to pests. Spraying fungicides like carbendazim or metalaxyl in May and June can prevent diseases. For pests such as cutworms, armyworms, and grasshoppers, timely application of insecticides like trichlorfon or deltamethrin is effective. Foliar fertilizers like urea can also enhance turf growth.
Finally, aeration and top-dressing are important for maintaining healthy soil. Compaction from foot traffic and frequent watering can reduce air and water penetration. Aeration improves soil structure, promoting better root growth. Combing the lawn removes excess grass, reduces density, and minimizes disease risk.
In conclusion, proper post-planting care is essential for a thriving, attractive lawn. Through careful irrigation, mowing, weed control, fertilization, pest management, and soil aeration, the lawn can remain healthy and visually appealing throughout the year.
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