In recent years, with the rapid development of the economy, China’s golf courses have developed rapidly. As a result, professionals in turfgrass are increasingly welcomed by the market. The golf course is planted with more grass, usually three kinds of mixed plants of bluegrass, tall fescue and ryegrass. It is green all year round and has strong disease resistance. Only know the grass pitch grass and grass, understand the golf course management to be a professional.
- Lawn care points
- Lawn fertilization
Every winter or early spring, organic fertilizer, such as compost or peat soil, is applied to the grassland, which not only increases fertility, but also loosens the soil, improves soil permeability, and is beneficial to the renewal of the turf roots. Generally, 12-15 kg of organic fertilizer is applied per mu; compound fertilizer is applied in spring or autumn, and fertilizer with a ratio of nitrogen, phosphorus, and potassium of 5:4:3 can also be applied. Generally, cold-season grass does not need to be fertilized in summer without yellowing. Too much fertilization can easily lead to long lawns, poor disease resistance, and affect ventilation and light transmission, and it is easy to breed pythium blight. Appropriate control of fertilizer can effectively inhibit the production of fungi in the high season of cold-season Pythium.
- Irrigation time
Plant observation method: When there is a water shortage, the lawn first shows signs of turbidity change, showing different degrees of wilting, and then loses luster, turns into turquoise or gray-green and needs watering at this time.
Soil water content test method: layering soil with a knife or soil drill. When the upper layer of soil is dried to 10-15 cm, the lawn needs to be filled with water.
- Number of irrigation
Depending on the type of bed soil and the weather conditions, sand soil is generally more susceptible to drought than clay and therefore requires frequent irrigation. Hot drought requires more water than cold and dry weather. Generally, in the growing season, under normal drought conditions, watering once a week. In the case of special drought or poor soil water, the water needs to be watered twice or more per week. In cool weather, it can be reduced to 1 time every 10 days; 2-3 times during the dormancy period.
- Irrigation amount
Generally, in the dry period of the turfgrass growing season, in order to keep the lawn fresh green, it is necessary to supplement 30-50 mm of water per week. In the case of hot and severe drought, vigorously growing lawns need to be supplemented with water of 60 mm or more per week. If the soil water retention performance is poor, it will be small in number, and it can be added about 2-3 cm each time, but the number of irrigation should be increased.
- Irrigation method
The lawn watering is mainly based on ground irrigation and sprinkler irrigation. Ground irrigation is often carried out in a variety of ways, such as flooding with large water and watering with a hose. In turf management, the most commonly used is sprinkler irrigation. Sprinkler irrigation is not limited by terrain. It also has the advantages of uniform irrigation, water saving, easy management, reduction of soil compaction and increased air humidity. Therefore, it is an ideal way for lawn irrigation.
- Lawn trim
Pruning the turf grass with moderate stimulation can inhibit its upward growth, promote the density of the branches, and improve the ventilation and light transmission of the glass layer so that the turfgrass grows healthily. The pruning principle generally follows the principle of “1/3”, that is, for each pruning, the cut portion is 1/3 of the vertical height of the turfgrass.
- Sand covering
After the lawn is used for a period of time, due to frequent activities and natural stress factors, a large number of roots are exposed, and unevenness of the ground surface occurs. In order not to affect the shot, maintaining the normal growth and development of the grass requires sanding operations. The green sand has a high frequency of sanding, and it is necessary to assist in sanding after cultivating operations such as punching, weeding, cutting and puncture. There are generally three types of sanding: applying all sand, side sand, and laksa. The number and number of sands covered by the greens on the golf course depend on factors such as a player putter, turfgrass growth, turf soil structure, grass species selection, ground unevenness, litchi layer thickness, and moss and grass.
- Control of the hay layer
The hay layer mainly refers to the part between the soil surface and the turf plant, which is mainly composed of dead or aging roots, stems (rhizils, stolons), leaf sheaths, leaves, and cut grass clippings. Their main components are carbon-containing organic substances (such as lignin, cellulose, hemicellulose, etc.). When these organic substances increase at a rate faster than the rate at which the microorganisms degrade, an accumulation of the hay layer is formed. The layer of dry grass of suitable thickness is a good organic fertilizer for the course lawn. It can also reduce the evaporation of the grass of the course and improve the elasticity and trample resistance of the course lawn.
- Course management
In order to solve the adverse effects of warm-season turf winter dormancy, meet the needs of the normal operation of the golf course, and achieve the effect of the seasons of the lawn, sowing the cold-season grass type–winter communication operation. The intersection is an effective technical measure to quickly improve the golf course lawn and provide high-quality hitting surface. It has been widely used in golf courses, sports fields and green lawns in recent years.
- Weed control
The weeds of the golf lawn grass are derived from the original bed soil and the weed source of the surrounding environment. At the beginning of the greening of the course, the number of weeds will not be very large, and it will be mainly removed manually. Due to the low altitude of the golf course green lawn, therefore, the hazards of green weeds are generally not serious. Occasionally a small number of weeds can be removed manually.