据国外报道,温室中施用二氧化碳效果很好,当二氧化碳含量提高3—5倍,能促进莴苣、番茄的成熟,并使它们的产量成倍增长。大田试验证明,二氧化碳施肥对水稻、玉米、棉花、大豆都有效果,例如当二氧化碳浓度由一般的300ppm增至2,400ppm 时,水稻亩产由700斤增至1,133斤。近年来,我国也开始进行这方面试验,据湖北省黄梅 According to foreign reports, the application of carbon dioxide in greenhouse is very good, when the carbon dioxide content increased 3-5 times, can promote lettuce, tomato ripening, and their production doubled. Field trials have shown that carbon dioxide fertilization has effects on rice, corn, cotton and soybeans. For example, when the carbon dioxide concentration is increased from 300ppm to 2,400ppm, the yield per mu is increased from 700kg to 1,133kg. In recent years, our country has also begun to test this aspect, according to Hubei Huangmei