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本试验利用中国科学院山西煤化所研制的NC—A型农用CO_2发生器产生CO_2气肥,进行了CO_2施肥对大棚黄瓜生长发育影响的试验。结果表明,CO_2施肥可以改善大棚内的小气候;促进大棚黄瓜植株的生长发育,株高、茎粗、叶数、叶面积、根重、须根数、根长等植物学性状都优于对照;增加了大棚黄瓜的前期产量和经济效益;提高了果实中的维生素C、可溶性糖、可滴定酸的含量以及糖酸比,改善了大棚黄瓜的品质。这些充分说明,CO_2施肥是大棚黄瓜早熟、丰产、优质的很好措施。
In this experiment, CO_2 gas fertilizer was produced by NC-A agricultural CO_2 generator developed by Shanxi Coal Chemistry Institute of Chinese Academy of Sciences. The experiment was conducted to study the effects of CO_2 fertilization on the growth and development of greenhouse cucumbers. The results showed that CO_2 fertilization could improve the microclimate in the greenhouse and promote the growth and development of cucumber in greenhouse. The plant height, stem diameter, leaf number, leaf area, root weight, number of fibrous roots and root length were all better than those in the control. The pre-production and economic benefits of greenhouse cucumber increased vitamin C, soluble sugar, titratable acid content and sugar-to-acid ratio in fruits, and improved the quality of greenhouse cucumber. These fully illustrate the CO_2 fertilization is greenhouse cucumbers early, high yield, good quality measures.