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首页> 外文期刊>Agricultural mechanization in Asia, Africa and Latin America >Design and Evaluation of Portable Tunnels for Summer Growth of Ornamental Plants
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Design and Evaluation of Portable Tunnels for Summer Growth of Ornamental Plants

机译：夏季观赏植物便携式隧道的设计与评价

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摘要

Tunnels with a new type of covering material, Aluminized Polyester Sheet (APS), have been designed and fabricated for improving the growth of ornamental plants in extreme summer. Experiments conducted for two consecutive years reveal that the designed tunnels are capable of improving the microclimate required for the selected ornamental plants namely chrysanthemum (Chrysanthemum morifolium) and balsam (Impatient balasamina) in extreme summer conditions. Changes in the microclimate and plant growth under the APS tunnels were recorded during the summer months of 2002 and 2003 and compared with that of outside environmental conditions. It was observed that the total average solar radiation and light intensity entering the APS tunnels reduced by about 78 % and 68 % and 80 % and 67.7 % respectively in the 2002 and 2003 as compared to open field conditions. The average plant and soil temperature was 5.5 ℃ & about 2 ℃ lower as compared to open field conditions. However, the average air temperature remained almost the same as compared to open field conditions. The average plant height of chrysan- themum and balsam was about 27 % and 40 % more as compared to the plants in open field conditions. This improvement in growth was attributed to the favorable microclimate like reduced light intensity, solar radiation and plant temperature achieved under the APST.
机译：设计并制造了一种新型覆盖材料的隧道，即铝化聚酯板（APS），以改善极端夏季观赏植物的生长。连续两年进行的实验表明，设计的隧道能够改善极端夏季条件下所选观赏植物菊花（Chrysanthemum morifolium）和香脂（Im Patient Balasamina）所需的微气候。在2002年和2003年夏季，记录了APS隧道下微气候和植物生长的变化，并将其与外部环境条件进行了比较。观察到，与开阔地带相比，进入APS隧道的总平均太阳辐射和光强度在2002年和2003年分别降低了约78％，68％，80％和67.7％。与露天环境相比，植物和土壤的平均温度低5.5℃，约低2℃。但是，平均空气温度与露天环境相比几乎保持不变。与露天环境下的植物相比，菊花和香脂的平均植物高度分别高出约27％和40％。生长的改善归因于有利的微气候，例如在APST下获得的降低的光强度，太阳辐射和植物温度。

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