Artificial soil compositions have been used as substrates for growing plants on the basis of modified polyacrylonitrile (PAN) fibers and films of sodium alginate. The agrophysical characteristics of these artificial substrates based on modified PAN fibers indicate that such composites have low volume mass, high water capacity, and a good level of capillary water rise. These artificial substrates provide for normal plant development. At the end of the experiments, the root systems of grasses had penetrated the substrates, which provided for firm plant embedding. Most of the parameters for grass on artificial substrates correspond to those for grass grown on natural soil, and in some cases even exceed those results. The best results are obtained with fibers modified by urea (PAN-KA), because urea acts as a nutrient during growth. Artificial soils containing alginate films bearing mineral nutrients have also given good results. In that case it is possible to mount the seeds directly on the film, which provides for convenient transportation and facilitates planting.
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Translated from Khimicheskie Volokna, No. 4, pp. 18–22, July–August, 2008.
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Vainburg, V.M., Lysenko, A.A., Shtyagina, L.M. et al. Fibrous materials as artificial soil substrates. Fibre Chem 40, 308–313 (2008). https://doi.org/10.1007/s10692-009-9054-9
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DOI: https://doi.org/10.1007/s10692-009-9054-9