Sunday, May 5, 2013

to improve the competitiveness of artificial grass weeds


Landscaping and golf course turf annually always have to put a lot of manpower to pull weeds, weeds pulled and long, always pull the net.

    This phenomenon is mainly caused by the following reasons:

    (1) the life of a large weed seed bank of weed seeds in the soil for several years, decades or even longer. Such as purslane seeds can survive for more than 30 years, wild oat seed life of 73 years, the flat seed storage life of 400 years, 600 years of the life of the seeds of chickweed, weed, Solanum nigrum seed longevity of 739 years, the quinoa seed longevity thousand years. Scientists 400 shepherd's purse seed germination test 75, 1173 days after germination. As the number of weed seeds in the soil especially, seed longevity is particularly long, once the conditions are suitable, it would start germination, making it difficult to pull the net.

    (2) multiple transmission routes brought planted lawn weeds and native soil weeds, weeds are the main source of lawn weeds. Fertilization, soil preparation, irrigation, packaging, transportation, farming and other human activities is lawn weed of transmission. Water, wind, insects, poultry, livestock and per capita transmissible weeds. Golf Course weed seeds tend to spread through the play, by the sole. Manual weeding only unplug the emergence weed, can not make the various via spread on the lawn weed seed emergence. Thus manual removal of emerged weeds, weed seeds in the soil continues to sprout, grow new plants.

    (3) weed with a wide range of ecological adaptability and anti-inferiority weeds in the lawn long-term competition in the formation of a competitive, with a wide range of ecological adaptability and anti-inferiority in most weeds. This broad ecological adaptability and anti-inferiority lawn weeds in both r-selection type, there are k-selective. r-selection type is selected in a great variety of environmental conditions down plant type, strong resistance, small size, fast growth, short life cycle, unsaturated groups, breed quickly, high productivity, such as chickweed, Amaranthus retroflexus . k-selective stable environmental conditions down plant types, their individual, competitive, long life cycle, in a life cycle can be repeated reproduction, such as field bindweed, reed. As we all know, Cyperus rotundus and optical scales water centipede most garden and golf turf generally difficult to remove hazards sedge, which not only shoot seed offspring breed rapidly by underground tubers or rhizomes, also in the face of adverse environmental to save the species reproduction. Often pull people shoot a seedling, the underground tuber dormancy budding this information in a very short time in advance to break dormancy, reproduction 2-4 to ensure that the reproduction of the species.

    (4) weed has a strong plasticity plasticity refers to plants in different habitats on the size, number, growth of self-regulation ability. Quinoa and amaranth plant height in different environments, ranging from 1 cm to 300 cm. Frequent golf course lawn mowers, grow dwarf weeds from lawn mowers to escape, and thus most of the weeds in the lawn looked short. In addition, quinoa and amaranth seed number from 5-1000000 range of these seed into the soil, increase the number of soil weed seed bank.

    (5) the creeping weeds covering is too large crabgrass, day coriander, Agasicles grass, snow, grass and other weeds the stems creeping growth, too much coverage, although the number of trees is not much, but account for a large nutrition area, weeding difficult to pull the net. Manual weeding, looks on the surface they seem to pull the net, but as long as there is one slipping through the net, it will multiply rapidly.

    (6) lawn of weeds in the lawn cultivation for many years, people often find that some of the "lawn" weeds or weeds in the lawn, which is actually a mixed lawn. Lawn weeds of manual removal of weeds become simply impossible. Such as Shanghai Golf ryegrass lawn bentgrass, Bermuda; the Shenzhen Golf Hawaii lawn Bermuda; annual bluegrass in Kunming, Guilin, Guiyang perennial bluegrass lawn.

    Lawn weeds, but to take a comprehensive approach and control, to improve the competitiveness of artificial grass weeds, for weed control initiative.

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