1, watering. Watering is one of the key measures for managing a new lawn. Before and after the emergence of watering management is particularly important, and sprinkled with mist as well, do not spray high-intensity, watering in the morning and evening, do not water at noon, do not water too much rain in the south, to avoid the formation of Pythium wilt . The number of waterings after landing is gradually reduced, and the amount of watering each time should be increased to keep the green of the lawn.
2, trim. The lawn trim height should follow the 1/3 principle, ie the height of each cut cannot exceed 1/3 of the natural height of the lawn. The pruning of newly built lawns is generally when the grass is trimmed at a height of 8-10 cm, and can be trimmed when the lawn is up to 5 cm. The number of pruning is determined by the use of the lawn. The yard lawn is trimmed at least 4-5 times a year, while the golf course's lawn is trimmed up to a hundred times a year. When pruning, pay attention to the flat bed to be dry, the blades should be sharp, and the blades of grass that are cut should be transported out of the lawn in time. In the northern area, the last time pruning before the winter should be kept high, in order to smoothly pass winter.
3, fertilization. In the management of extensive lawns, cattle, sheep, and other livestock are directly driven into the lawn for rotational grazing, and their feces can be directly applied to the grass. In the finely-managed lawn, fertilization should be based on organic fertilizer, supplemented by long-acting carrier nitrogen fertilizer and compound fertilizer as top dressing. The lawn should be fertilized immediately after the first pruning. The other fertilization time depends on the condition of the soil and turfgrass growth. For example, on a cool season lawn, fertilization is performed every year in the early spring and early autumn, or when the lawn turns yellow.
4, pests and weed control
(1) Diseases. China's turfgrass diseases mainly include brown spot disease, pyomyosporium wilt, sickle blight, dollar spot disease, helminth leaf wilt disease, Curvularia spp., rust, powdery mildew, downy mildew and Rhizoctonia solani. . Prevention and control of turfgrass disease should be based on prevention, that is, training strong turf, breeding disease-resistance cultivars, and timely carrying out chemical prevention and control of serious diseases. Application of 25% triadimefon (ie triadimefon) seed coating agent to seed the lawn seeds by 0.01% of the seed weight. The control effect on root rot, leaf blight, and blight is 85% or more; 25% Triadimefon wettable powder, 50% mancozeb WP, 75% chlorothalonil wettable powder, diluted 500-1000 times, used alone or mixed, sprayed once every 7-15 days, a total of 3 spray Secondly, the control effect on leaf spot was more than 80%.
(2) Insect pests. The main insect pests of the lawn include tigers, crickets, crickets, and locusts. Tigers, using blacklights, liqueurs, vinegar, or sexual attractants to trap and kill adult larvae, kill larvae manually, use Wan Ling Shui (24%), dipterex (80%) 800-1000 times, 50% Land pressure agricultural 1000 times, 50% phoxim 1000 times spray effect.è¼è›„ å–· å–· å–· å–· å–· 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 è¼è›„ è¼è›„ è¼è›„ è¼è›„. Earthworms, artificial capture adults and larvae; light induction induced insects; with phoxim poison soil, with 50% phoxim EC per hectare, 25% phoxim capsular release agent 1.5 kg, 22.5 kg of water, mix 225 kilograms of fine soil or fine sand, spread after spreading. Aphids, 50% malathion 1500-2000 times liquid, 2.5% kung fu 5000 times spray control.
(3) Weeds. China's common monocotyledonous (leaf-leaf type) annual grass weeds include Setaria viridis, Macdonium, Teff, Hedgehog, etc., perennial weeds include Aconite, Agropyron, Imperata, etc., and dicotyledonous (broad-leaved) annual turfgrasses. Grass has gray vegetables, leeks, dragon dishes, purslane, sorghum, corn grass, flat animals, etc., two-year turf weeds have Poling dishes, summer solstice, attached vegetables, stinky artemisia, lone vegetable, perennial lawn weeds There are bitter herbs, field bindweed, dandelion, plantain and so on. Garden weed control is mainly manual weeding and grass weeding. Large lawns are trimmed regularly with motorized lawn mowers to suppress and reduce the vegetative growth and reproductive growth of weeds to achieve the purpose of controlling weeds. Herbicides should be avoided during the seedling stage. The best weeding effect is to remove the weeds on the flatbed before weeding with herbicides and artificially. Weed control measures should be applied after wetting in the fields. 0.095 g/m2, 2,4-D + 0.025 g / M steeped adobe mixed herbicide, to prevent broadleaf weeds better.
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