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Substrate prescription of light-weight roof afforestation prefabricated sedum polytrichoides carpet

A roof greening and matrix technology is applied in the field of horticultural plant cultivation substrate and plant cultivation, which can solve the problems of destroying the ventilation and water seepage properties of mixed substrates, unfavorable light-weight roof greening grass blankets into blankets, and easily disintegrating into powders. The exchange energy is large, the root damage of the plant is avoided, and the buffer performance is good.

Active Publication Date: 2010-02-17
上海植物园管理处
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] (7) Vermiculite: small bulk density, loose and breathable, good water retention and drainage, and certain fertilizer retention capacity, but poor stability, easy to disintegrate into powder, destroy Ventilation and water permeability of mixed matrix
However, due to the excessive bulk density of the soil, it is not conducive to the formation of light roof green grass blankets, so it is necessary to develop new cultivation substrates to improve this unfavorable condition

Method used

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  • Substrate prescription of light-weight roof afforestation prefabricated sedum polytrichoides carpet
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  • Substrate prescription of light-weight roof afforestation prefabricated sedum polytrichoides carpet

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Embodiment 1 Sedum drought-tolerant plant

[0043] Select the sedum drought-tolerant plants whose root system is characterized by fibrous roots.

[0044] Sedum polytrichoides Hemsl, which has a certain representative root system, has a dense and well-developed fibrous root system, and the diameter of a single root is relatively small.

[0045] With peat, perlite, and palm silk as matrix materials, press L 9 (3 4 ) Arrange 3 factors, 3 levels of orthogonal experiments, 9 treatments in total in the test, the contrast is set as the nursery surface soil of Shanghai Botanical Garden, its specific formula and experimental results are shown in Table 1, where the numbers in the table represent straw blanket, perlite and palm fiber volume ratio.

[0046] Table 1 Orthogonal test table design

[0047] Tab.1 Orthogonal experimental design

[0048]

[0049] The peat, perlite and palm fiber in Table 1 are added and stirred according to the above ratio, and the length of the p...

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Abstract

The invention discloses a substrate prescription of a light-weight roof afforestation prefabricated sedum polytrichoides carpet and an application of the substrate prescription in preparing fibrous root system plant culture. The substrate prescription comprises grass carbon, perlite and palm thread, wherein the volume ratio of the grass carbon, the perlite and the palm thread is 2-6:1-3:0-2; the perlite is expanded perlite and has the expanding times K0 being larger than 5-15 times, the volume weight being smaller than and equal to 80kg / m<3>-200kg / m<3>, the silicon dioxide content of 60-70 percent and the water content of 4-6 percent; the palm thread has the length of 2-10cm, and is 17 percent of the total volume of the substrate; the palm thread has the length of 2-6cm and is 22 percent of the total volume of the substrate; the volume ratio of the grass carbon, the perlite and the palm thread is 4:1:1; the volume ratio of the grass carbon, the perlite and the palm thread is 6:1:2; thelength and the width of the prefabricated sedum polytrichoides carpet are respectively 40cm, and the thickness of the substrate is 2.5cm; and the substrate prescription is applied to the preparationof root system plant during cultivation. The substrate prescription can be widely applied to sloping roofs and sheet flat roof decks in various forms, is convenient, simple and rapid during transportation, spreading or plant material replacement, saves time, improves efficiency and can prevent plant root system injury, landscape damage and even environmental pollution caused by culture medium drop.

Description

technical field [0001] The invention relates to plant cultivation technology, in particular to a horticultural plant cultivation substrate, and more specifically to a substrate formula for a light green roof greening prefabricated sedum carpet. Background technique [0002] The thinner substrate thickness is the most important feature of light green roofs, which not only brings many restrictions to the light green roof system, but also brings many possibilities to the design of the whole system. First of all, a thinner substrate thickness is advantageous from the perspective of buildings, which greatly reduces the weight of the entire vegetation system covering the roof, so that this form of roof greening can be implemented to most existing roofs, while No remodeling is required. On the other hand, from the perspective of plants, a thin layer of substrate is a great limitation, because the thinner the substrate, the less water it can hold, and the faster it dries in summer,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G31/00
Inventor 胡永红秦俊高凯王静张飞飞郭纪光王红兵
Owner 上海植物园管理处
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