【摘要】 用硫酸与碳酸氢铵产生二氧化碳法，研究了不同浓度的二氧化碳对黄瓜产量的影响。结果表明，二氧化碳浓度为1000毫克／千克时，增产达30-34％，经济效益明显。更多还原

【Abstract】 Effect of carbon dioxide at different concentration to cucumber yield was studied by sulphuric acid and ammonium bicaxhanate getting carboan dioxide.The result showed that carbon dioxide concentration of 1000 mg·L-1 and 1500 mg·L-1 could increased in cucumber yield of 30%～34% and had remarkable economic effect.更多还原