Evergreen mixed-growing lawn composed of bermuda grass and Kentucky bluegrass and its cultivating method

Abstract

The invention relates to an evergreen mixing lawn consisting of cynodon dactylon and kentucky bluegrass and the planting method of the lawn. The natural characteristics of the cold-season kentucky bluegrass and the warm-season cynodon dactylon are utilized, the characteristics that the kentucky bluegrass has underground rhizomes and the cynodon dactylon has the growth habit of growing surface runners are utilized, and the mode that the seeds of the kentucky bluegrass are reseeded on a cynodon dactylon lawn or the rhizomes of the cynodon dactylon are inserted on a kentucky bluegrass lawn to build the mixing lawn. The two plants forming the mixing lawn can naturally circulate, the cynodon dactylon mainly grows and the kentucky bluegrass rests as underground rhizomes in summer, auxiliary buds of the rhizomes of the kentucky bluegrass grow upwards to get through the surface runners of the cynodon dactylon to form plants to take place of the cynodon dactylon before the cynodon dactylon turns yellow in august, the kentucky bluegrass grows in winter and the cynodon dactylon rests as surface runners, the surface runners of the cynodon dactylon germinate in the next spring to gradually take place of the kentucky bluegrass, and thereby that the lawn is evergreen is realized.

Description

technical field [0001] The invention relates to a lawn planting method, in particular to an evergreen urban greening lawn composed of two lawn plants, Bermudagrass and Poa annua, and a planting method thereof, belonging to the field of urban greening construction. Background technique [0002] Landscaping is the main content of ecological city construction. Because lawn not only has important ecological functions such as reducing urban heat island effect and reducing atmospheric dust pollution, but also provides green leisure activities for urban residents, lawn has always occupied an important role in urban green space. more than one-third of the area. In recent years, my country's urban green area has grown rapidly, and many cities have reached or approached the level of 10 square meters per capita. With the improvement of people's living standards, the requirements for the ecological function and leisure function of urban green space are getting higher and higher. The co...

AI Technical Summary

Problems solved by technology

[0009] 1) Poor heat resistance

The optimum growth temperature of cool-season turfgrass plants such as tall fescue and bluegrass is 15-20°C, and they show obvious growth inhibition at temperatures above 30°C, and severe growth failure at temperatures above 35°C. Metabolic exhaustion, lack of energy metabolism, tall fescue and bluegrass lawns are difficult to survive the summer safely

[0010] 2) Poor disease resistance

[0011] 3) High maintenance cost

[0018] 1) Turf quality is poor during the transition period of grass species in spring and autumn

The main problem of the "dwarf Bermuda + ryegrass" model is that the lawn transition period between spring and autumn is too long, and the lawn quality is poor during the transition period

Spring and autumn are the peak periods for people to use lawns. Low-quality lawns in the conversion period seriously affect the leisure function of lawns. In addition, due to the unstable transition of grass species, it is difficult to replenish dwarf Bermuda immediately after the withdrawal of ryegrass. Easy to leave lawn holes, causing weed invasion

[0019] 2) The maintenance cost is high, and ryegrass needs to be re-seeded every year

Re-sowing seeds plus dredging before re-sowing, sanding after re-sowing, fertilization, irrigation, weeding and other processes increase the maintenance cost of the lawn

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