plastic tunnel

Cucumber is globally widely cultivated vegetable crop. In China, it is mainly cultivated in the plastic tunnel, providing a year-round vegetable supply.

黄瓜是全球普遍栽培的主要蔬菜作物，其栽培面积在我国保护地蔬菜中居首位，对保证我国蔬菜周年均衡供应方面具有十分重要的作用。

Studies on Some Photosynthetic Characters of Cucumber in Autumn Plastic Tunnel

秋季大棚黄瓜主要光合作用特性研究

The main results of this paper showed that: The air temperature and soil temperature were gradually rising, but the air temperature, air relative humidity, soil temperature and day-and-night temperature difference in the plastic tunnel were higher than those in the open field before June.

其研究主要结果如下：气温和地温的季节变化均呈逐渐上升趋势，6月份之前大棚气温、相对湿度和地温均高于露地，且棚内昼夜温差大于露地。