After the lawn is not built, daily maintenance work has become an important guarantee for ensuring the lawn landscape. Many turfgrass makers have overlooked this point, making lawn landscapes unsatisfactory. The following are some basic measures for managing the lawn. Having mastered them, I believe that it will help to maintain the turf landscape. prune Pruning is one of the most important management measures. In principle, the amount of pruning should not exceed 1/3 of the grass length. The following table shows the height of stays recommended by us. Due to the different uses of the grass or limited manpower and material resources, the following standards are only for reference. Precocious pods 3.8 to 6.4 cm in height and 3.8 to 7.6 cm in tall fescue Ryegrass 3.8 to 7.6 cm, bentgrass 0.5 to 2.5 cm, Bermudagrass 0.6 to 3.8 cm, and Zoysia 1.3 to 5 cm. The purpose of pruning is not only for the sake of beauty, but more importantly, pruning can promote planting, increase the density, flatness and elasticity of the lawn, enhance the abrasion resistance of the lawn, and prolong the service life of the lawn. Timely cutting can also inhibit the flowering and weeding of turf weeds, causing the weeds to lose the opportunity to reproduce and gradually disappear from the lawn. top dressing Lawn topdressing can use chemical fertilizers or organic fertilizers. The following points should be noted when using chemical fertilizers: 1. The ratio of N:P:K is controlled at 5:4:3; 2. The general amount of soil is 20 kg/mu; 3. Normal Under the circumstances, the fertilization in the fall in the south and the fertilization in the spring in the north; 4. The fertilization and watering should be closely coordinated to prevent improper use of the turf, and the best condition is to use a good liquid fertilizer. Organic fertilizers are mostly applied during the dormant period of the lawn. The amount of organic fertilizer is generally 1000 to 1500 kg/mu, which is applied once every 2 to 3 years. The application of organic fertilizer can not only improve the soil porosity and permeability, but also help the turf to safely pass winter. Watering Watering can not only maintain the normal growth of turfgrass, but also improve the toughness of the stems and leaves and enhance the resistance of the lawn to trampling. 1. Season: Irrigation of the lawn should be carried out in a dry season where the amount of evaporation is greater than the amount of precipitation. After the winter lawn soil is frozen, no watering is required. 2. Time: As far as the weather conditions are concerned, a breeze is the best time for watering, which can effectively reduce the evaporation loss and facilitate the drying of the blades. In the day, in order to improve the utilization of water, morning and evening are the best time for watering, but watering at night is not conducive to the drying of turfgrass, and it is easy to cause diseases. 3. Water quantity: Usually during the dry period of turfgrass growing season, in order to maintain the green of turfgrass, about 3 to 4 cm of water need to be added every week. In hot and dry conditions, the vigorously growing lawn needs to be supplemented by 6 cm per week. Or more water. The amount of water required depends to a large extent on the texture of the soil in the bed. 4. Method: Watering can be spray irrigation, drip irrigation, flood irrigation and other methods. Different methods can be adopted according to different levels of maintenance and management levels and equipment conditions. In order to prolong the green period, water should be poured before the turfgrass stops growing in the autumn and before returning green in the spring, and it is necessary to pour enough water and water, which is very favorable for turfgrass overwintering and turning green. Disease prevention and treatment 1. Classification of turfgrass diseases According to different pathogens, diseases can be divided into two categories: non-invasive diseases and invasive diseases. Non-invasive diseases are mainly caused by both lawn and environment factors. Such as improper selection of grass species, soil lack of turfgrass growth necessary nutrition, imbalance of nutrient elements, soil too dry or too wet, environmental pollution. This type of disease is not contagious. Infectious diseases are caused by fungi, bacteria, viruses, nematodes and other pathogenic microorganisms. These diseases are highly contagious. The three necessary conditions are: susceptible plants, pathogens with strong pathogenicity, and appropriate environmental conditions. Prevention methods are as follows: (1) The primary infestation source of pathogens is eliminated. Soil, seed, seedlings, field diseased plants, diseased plant residues, and unfertilized fertilizers are the sites where most pathogens pass through winter and summer. Therefore, soil disinfection is used (usually Formalin disinfection, formalin: water = 1:40, soil surface dosage 10-15 liters/m2 or formalin: water = 1:50, soil surface dosage 20-25 liters / Square meters), seedlings treatment (including quarantine and disinfection of seeds and seedlings; commonly used disinfection methods on lawns are: formalin 1% to 2% diluted seed soaked seeds for 20 to 60 minutes, after leaching washed out and washed Drying after broadcast) and timely elimination of diseased plant debris and other measures to control. (2) Agricultural control: appropriate land and grass, especially the selection of disease-resistant varieties, removal of weeds in a timely manner, timely deep plowing, timely treatment of diseased plants and disease sites, and enhancement of water and fertilizer management. (3) Chemical control: spraying pesticides for prevention and control. In general, in the early spring, before various lawns will enter the vigorous growth period, that is, before the turfgrass enters the onset stage, an appropriate amount of Bordeaux mixture is sprayed one time, and then sprayed once every two weeks and continuously sprayed three to four times. This prevents the occurrence of various fungal or bacterial diseases. The types of diseases vary and the agents used vary. However, attention should be paid to the concentration of the drug used, the time and frequency of spraying, the amount of spray, and so on. General turfgrass leaves have good spray effect when they are kept dry. The number of spraying should be determined according to the length of the residual period of the drug, generally 7 to 10 days, a total of 2 to 5 times can be sprayed. After the rain should make up spray. In addition, various agents should be mixedly administered or used interchangeably as much as possible. Pest control 1. The main causes of the harm caused by turfgrass pests are the following points: Soil before lawn establishment without pest control (deep soaking soil, soil picking, soil disinfection, etc.); organic fertilizer applied without decomposition; Not timely or improper medication, failure and so on. 2, turfgrass pest control. (1) Agricultural control: appropriate grass cultivation, deep sun drying before sowing, deep digging and picking up insects, application of adequately decomposed organic fertilizer, timely watering management, etc. (B) physical and artificial prevention and control: light trapping, drug poisoning and other contact, artificial capture and so on. (C) biological control: that is, the use of natural enemies or pathogenic microorganisms to prevent and control. For example, Metarhizium anisopliae is the most effective pathogenic microorganism for preventing and controlling earthworms, and the control effect is 90%. (D) Chemical control: pesticides mainly organic phosphorus compounds. Irrigate as soon as possible after the general application of drugs in order to promote the dispersion of the drug, to avoid the loss of light decomposition and volatilization; spray commonly used on surface pests. The above measures may be sufficient for an ordinary turfgraiser. If the lawn is properly managed, its resistance will be greatly enhanced. Pesticides-Plant Growth Regulator Pesticides-Plant Growth Regulator,Hydrogen Cyanamide 50% Solution,Hydrogen Cyanamide 50% Solution 420-04-2,High Effect Hydrogen Cyanamide 50% Solution Ningxia Darong Chemicals & Metallurgy Co., Ltd. , http://www.darong-cyanamide.com