On the television screen, we can often see the green football field, which is beautifully colored, soft and smooth. Oddly, the lawns in the venue are intricately arranged in two shades of dark green and light green. Although they are reflective, they are not dazzling. Especially in foreign countries, the lawn on the football field is simply a pattern, a clear grid, with the athlete's body and superb ball art, giving people a beautiful enjoyment. Why does the lawn soccer field show two different colors? The following small series introduces the reasons, methods, and uses of different colors for different colors of the grass lawn.
I. Reasons and methods for different colors of the grass in the football field
Some people have speculated that this is the result of the planting of two kinds of grass on the site according to different bars. The varieties of grass are different and the colors are different. In actual fact, the grass suitable for the football field has its own special varieties, which must be flat, resistant to trampling, flexible, and highly prosperous. The most commonly used are grasses such as Zoysia, Poa, and Bermuda grass. Some football fields are simplistic, and some football fields are complementary to the selected grass species, and two or more varieties are sown together. After the football pitch is completed, in addition to fertilizing and watering, it is more important to trim regularly. The mystery of different colors lies in pruning, using special mechanical lawn mowers to put pressure bars in different directions, because before every football game, the lawn will use rollers to compact the compaction roller to press the lawn in one direction for each width requirement. The rolling direction of two neighboring lawns is different. The turf is often rolled after pruning, growth is reversed, and the light is absorbed and reflected, so when looking down from the stands, different colors appear.
The above is one way, and there is another kind of "different grass species." It can effectively prevent the grass from going crazy when there is only one kind of grass. Putting different varieties together will restrict each other and it will be relatively easy to maintain. The grass suitable for the football field has its own special varieties, which require flatness, resistance to trampling, elasticity, and strong regeneration. The most common species are grasses such as zoysiagrass, bluegrass, and Bermuda grass. Some footballs often use complementary grass varieties to complement each other and use different grass varieties to achieve complementary results. In addition, some football court lawns use physical, chemical, and biological methods to achieve different color effects while maintaining and managing lawns.
Biological methods
It is mainly used to apply special fertilizer or spray greener to the lawn. Nitrogen fertilizer and potash fertilizer with different contents and different kinds of planting can change the color of the lawn and achieve the stripe effect of turf color on the football stadium. Turf greenners are made from all-natural raw materials and are highly safe to humans, animals, vegetation and the environment. When the lawn is dormant, damaged or suffers from diseases and droughts, it can provide a very good green effect on the lawn, and it can be well-integrated with sand and soil, and it can be dyed green for 70 to 100 days.
chemical method
Major plant dyeing and plant growth regulators. Plant growth regulators are synthetic compounds that belong to the class of pesticides. They are strictly controlled in the use of lawns in football fields and are generally used less frequently. Plant growth regulators are mainly divided into: plant growth promoters, plant growth inhibitors, and plant growth retardants. Commonly used plant growth agents are: auxin, gibberellin, brassinolide, etc.; commonly used plant inhibitors are: ethylene, salicylic acid, abscisic acid, etc.; commonly used plant growth retardants are: paclobutrazol, itconazole , than long wait.
Physical method
Perhaps the most unexpected thing for everyone is the physical method. Using lawnmowers and roller presses to trim and suppress in different directions and at different frequencies on the lawn of a football pitch, you will see a stripe effect seen by everyone. In fact, the principle is also very simple, when the turfgrass stems and leaves because of pruning and suppression to make it fall in different directions, the image of the leaves in the human eye after reflection will be different. The effect of using repression is generally to operate on the day before the game. After a long time, the stripe effect will disappear when the lawn is restored. If you want to work longer, you need to cut the lawnmower and make the height of the lawn slightly different. This will last for a week.
Second, the different uses of the natural color of the football field
First of all, the color separation of the lawn is mainly for the visual judgment of the referee to be more accurate and the player's vision is more comfortable. Followed by beautiful. Grass species that use pruning methods are generally special grass species, and they themselves grow very slowly.
1. What we see is usually a row of dark grass and a row of light grass. This is to make it easier for the players to determine if the players are offside from the color of the lawn. If the defenders stand on the dark grass and attack. People stand on light grass and it is easy to judge where they are.
2 is conducive to beautify the effect of the stadium, so that the fans produce the visual beauty
3. Reduce the boring and physical distribution of the players on the court when assigning fans.
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