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首页> 外文期刊>Canadian Journal of Soil Science >Developing new potting mixes with Sphagnum fibers
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Developing new potting mixes with Sphagnum fibers

机译：用泥炭纤维开发新型盆栽混合物

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Researchers are developing techniques to mass produce Sphagnum fibers (SF) on a sustainable basis since this material has properties that could benefit the growing-media industry. The objective of this study was to incorporate SF into peat-based substrates to enhance the value of brown Sphagnum peat and/or replace perlite in blond peat mixes. Nine substrates were prepared by mixing brown Sphagnum peat (BrSP) or sieved brown Sphagnum peat (sBrSP) with 0, 15 and 30% of SF and substituting 0, 50 and 100% of the perlite in a 70% blond Sphagnum peat (BSP) and 30% perlite mix with SF. The growth of Pelargonium was unaffected by the addition of SF, with the exception of above-ground biomass which was 15% lower in the BrSP substrate containing 15% SF. In the case of Petunia, above-ground biomass increased with a 30% SF addition to sBrSP, and below-ground biomass increased with a 30% SF addition to BrSP and sBrSP. Adding SF to peat increased water retention and hydraulic conductivity, but either reduced or had no impact on air-filled porosity. Removing fine particles from BrSP and adding 30% SF provided promising results, although the effect varied with plant species. Moreover, it is clear that SF can be used as a substitute for perlite in BSP mixes.
机译：研究人员正在开发技术，以可持续的方式批量生产泥炭纤维（SF），因为这种材料的特性可以使不断发展的媒体行业受益。这项研究的目的是将SF掺入基于泥炭的基质中，以增加褐色泥炭藓泥炭的价值和/或替代金发泥炭混合物中的珍珠岩。通过将棕色泥炭泥炭（BrSP）或筛分的棕色泥炭泥炭（sBrSP）与0％，15％和30％的SF混合并在70％的金发泥炭泥炭（BSP）中代替0％，50％和100％的珍珠岩来制备九种基材和30％的珍珠岩与SF混合。天竺葵的生长不受SF的影响，但地上生物量除外，在含有15％SF的BrSP基质中，地上生物量低15％。就矮牵牛而言，地上生物量在sBrSP中添加30％SF时增加，而地下生物量在BrSP和sBrSP中添加30％SF时增加。在泥炭中添加SF可以提高保水性和水力传导性，但对充气孔隙率的降低或没有影响。从BrSP去除细颗粒并添加30％SF提供了可喜的结果，尽管效果随植物种类而异。此外，很明显，SF可用作BSP混合物中珍珠岩的替代物。

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