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.
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[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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