论文部分内容阅读
日本奈良县农业试验站研究表明,由于植物进行光合作用吸收二氧化碳,白天塑料棚内二氧化碳浓度降至200ppm,比露地低一倍。该试验站采用二氧化
Research at the Nara Prefecture Agricultural Experiment Station in Japan showed that the carbon dioxide concentration in plastic sheds was reduced to 200 ppm during the daytime due to photosynthesis of plants, which was twice as low as that of the open field. The test station uses dioxide