论文部分内容阅读
塑料大棚栽培是目前冬春季蔬菜栽培的主要方式之一。由于塑料薄膜密封好,对保温有利,但气体交换不良,导致大棚内中午由于强烈的光合作用而使CO_2亏缺。同时由于塑料薄膜对光线的吸收,使早晚光照不足。为摸清塑料大棚内光合环境及光合作用状况,以期通过改善蔬菜的碳素营养,摸索大棚蔬菜增产途径,我们于1988～1987年度分别在商丘市蔬菜研究所及本校进行了试验,现将试验结果整理如下。
Plastic greenhouse cultivation is currently one of the main winter and spring vegetable cultivation. As the plastic film is sealed, it is beneficial to heat preservation, but the gas exchange is poor, resulting in the shortage of CO2 due to strong photosynthesis in the greenhouse at noon. At the same time as the plastic film on the absorption of light, sooner or later light enough. In order to find out the photosynthetic environment and photosynthesis in the plastic greenhouse, with a view to improving the yield of greenhouse vegetables by improving the carbon nutrition of vegetables, we conducted the experiment in Shangqiu Vegetable Research Institute and our school from 1988 to 1987. Now, The results are organized as follows.