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首页> 外文期刊>Acta Horticulturae >Energy saving by soil insulation in greenhouse freesia production.
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Energy saving by soil insulation in greenhouse freesia production.

机译：在温室小苍兰生产中通过土壤保温节省能源。

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This paper describes attempts to find practical methods for mulching in Freesia to prevent evaporation from the soil. If mulching could insulate soil not only for temperature, but also for evaporation, more energy might be saved. Two experiments at commercial greenhouses were done to test soil insulation. The first experiment aimed to test materials and strategies. This experiment showed that a mulch of styromul bound together with synthetic glue or paper cellulose did not inhibit or harm the crop. In the second experiment soil was insulated using: Biofoam (5 mm layer), Styromul (5 mm layer), Biofoam glued together with synthetic glue (20 mm layer), Biofoam glued together with organic glue (20 mm layer), styromul glued together with synthetic glue (20 mm layer) and an untreated control. Slightly increased evaporation using any mulch layer was measured. However, soil temperature was also higher because of soil heating resulting in higher evaporation of the soil. Net evaporation is calculated to have been decreased by 12% using 20 mm instead of 5 mm mulch, which is expected to result in energy saving of 11.1 MJ.m -2.yr -1 on humidity control, which is too low to make up for the cost. Soil insulation decreased temperature fluctuations. Increasing the thickness of the mulch increased temperature insulation, however the effect appeared to decrease rapidly with increasing layer thickness. CT International Symposium on New Technologies for Environment Control, Energy-Saving and Crop Production in Greenhouse and Plant Factory - Greensys 2013, Jeju, Korea Republic, 22-27 September 2013.
机译：本文介绍了尝试寻找小苍兰覆盖物以防止从土壤蒸发的实用方法的尝试。如果覆盖不仅可以使土壤绝缘，而且可以使蒸发绝缘，则可以节省更多的能量。在商业温室中进行了两个实验，以测试土壤的隔热性。第一个实验旨在测试材料和策略。该实验表明，与合成胶或纸质纤维素结合在一起的一团苯乙烯不会抑制或伤害农作物。在第二个实验中，使用以下材料对土壤进行隔热：Biofoam（5毫米层），Styromul（5毫米层），Biofoam与合成胶（20毫米层）粘合在一起，Biofoam与有机胶（20毫米层）粘合，苯乙烯胶用合成胶（20毫米厚）和未经处理的对照。测量使用任何覆盖层的蒸发量略有增加。然而，由于土壤加热导致土壤更高的蒸发，土壤温度也更高。使用20毫米而不是5毫米覆盖膜，可计算出净蒸发量减少了12％，这预计将在湿度控制上节省11.1 MJ.m -2.yr -1的能量，该能量太低而无法弥补费用。土壤绝缘减少了温度波动。增加覆盖物的厚度可增加隔热性，但是随着层厚度的增加，效果似乎迅速降低。 CT国际温室和植物工厂环境控制，节能和作物生产新技术研讨会-Greensys 2013，韩国济州，2013年9月22日至27日。

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