The purity of lawn landscape The consistency of lawn landscape is the most basic requirement for a lawn. However, for golf courses over ten years old, due to improper lawn measures, the lawn varieties are complicated and the colors are different, which has a very adverse impact on the landscape of the golf course. Therefore, how to solve the problem of different shampoo for old golf courses and how to solve the problem of different shampoo for new golf courses is a common concern of many gardening field builders.
1. Impure varieties, that is, other grass varieties are mixed in the original grass varieties. Some cheaper grass varieties are often less clean.
2. Artificially mix varieties during sowing. For example, the sowing containers for bentgrass and containers for other grass seeds should be strictly separated. Bentgrass seeds are small, with more than 16,000 seeds in 1 gram. A little bit of bentgrass in the container is enough to cause a large number of bentgrass reproduction.
3. After sowing, the seeds are not covered with non-woven fabrics or other covering materials, and then splashed with water or blown by strong winds, causing the seeds to fly around.
4. The variety of the spare grass is not the original variety, and the color is different after the grass is supplemented.
5. The number of annual bluegrass increases year by year, causing serious spotting of the lawn.
二. Prevention and control measures
Choose the right variety
Grass seeds should be used as much as possible with good responses after many years of practice, so that the market supply and demand are large and easy to obtain. Some cheap varieties, firstly, are not pure, and secondly, the market demand is small, the varieties are frequently changed, and it is difficult to buy them in the future. The different varieties of replanting will definitely cause the lawn to have different colors.
1.After so many years of practice, there are some relatively mature varieties of golf course lawns, such as Midnight among early grass, which has strong disease resistance and dark green color; Rugby No. 2, which is dwarfed, creeping, and has lawn landscape effect
2. Prevent late-stage mixing of varieties
Prevent late-stage mixing of varieties with good fruit; New Gerard, with fine leaves and good disease resistance; Paradise 419 in the subtropics; some seashore paspalum in the south; Zoysia in Shandong Peninsula, etc. These varieties have been used by people for more than ten years and generally have good feedback.
3. Strictly follow the procedure for sowing
When sowing, write the variety mark on each sowing container for special use. It is strictly forbidden to sow multiple varieties in one sowing container. If there is really no sowing device, you can sow one variety first, rinse it thoroughly, and then sow another variety. Never use the same container to frequently change varieties.
Draw a line on the boundary of the varieties with lime powder, then stand at a high place to look, and then make appropriate adjustments. When sowing, use plywood for mobile isolation, or use colored strips of cloth to lay along the line to prevent different varieties from crossing the line.
Once the seeds are sown, they must be covered with non-woven fabrics when they are rolled. This can prevent the seeds from being blown away by the wind and splashed by watering, and can also keep warm and moisturize, improve the germination rate of seeds, and remove the non-woven fabrics one by one after all the seeds have germinated. This is an effective and indispensable measure to prevent the mixing of varieties.
三. Routine maintenance measures
1. Strictly establish the grass preparation area according to the original variety
The variety of the grass preparation area must be consistent with the original golf course variety. If the original variety cannot be obtained, the grass mounds cleaned by punching and sweeping can be spread flat on the grass preparation area, and then a thin layer of sand can be spread. This method is faster than sowing and can save costs to obtain the same reserve grass variety as the original. If it is really impossible to get grass mounds, you can also comb the grass in the dense grass area, scatter the grass clippings in the grass preparation area, and spread sand to grow seedlings to obtain the same reserve grass variety as the original. The specific measures are:
⑴ When mowing the grass, you must bring a bucket with you and move the grass clippings out of the court to prevent the cut grass stems from taking root and reproducing in other places.
⑵ In the pool of water for irrigation, it is forbidden to pour grass clippings to raise fish to prevent the remaining grass clippings from being carried into other places with the irrigation water and reproducing in other places.
⑶ Remove non-required varieties in time. No matter how carefully you manage, over time, there will always be non-required varieties growing in other places, such as bentgrass, annual bluegrass, tall fescue, etc. on the fairway. The most terrible ones on the fairway are bentgrass and annual bluegrass. These two grasses reproduce quickly on the fairway and have strong invasion ability.
Although bentgrass is used as fairway grass in some places, if it coexists with bluegrass or other varieties in the fairway, other grasses will gradually disappear because they cannot compete with it. In this way, the area of
bentgrass will become larger and larger, while the area of the original grass will become smaller and smaller. Bentgrass has few roots in the soil layer, and its main root system is a root network formed on the soil surface. It is extremely drought-intolerant and needs frequent sanding. It is very susceptible to dollar spot disease.
The annual bluegrass blooms and bears seeds all year round because the time of seed dropping is different. It is most prosperous in May, followed by October and November. The flowers in May are purple, while the flowers in other months are mostly white. It takes about 10 days from flowering to seed maturity. After the seeds fall to the ground, they have a strong germination ability, so its development speed is also amazing.
The color of this grass is slightly lighter than that of the perennial bluegrass. The biggest difference between it and the perennial bluegrass is that it has no underground stems and dies after setting seeds. During this period, the lawn will partially turn yellow, and the original color will not return until the fallen seeds germinate and grow. If this grass is not controlled, it will damage the lawn very quickly. There is no good way to cure it now, but some people recommend frequent root cutting and grass combing to inhibit its flowering and seeding. During the seeding period, it should be properly mowed low and the grass clippings should be removed from the field with a bucket. In short, it is best to remove it when it is young to prevent future troubles.
Post time: Sep-23-2024