一些研究表明,部分不同种类的蔬菜作物当它们生长在具有地膜覆盖的土壤上时,可使其生产率大幅度提高。据报道,在地膜覆盖条件下生长的茄子其产量约增300％。地膜覆盖不仅可提高土壤的温湿度:并可减少作物根系的损害;同时能抑制杂草生长,而人们则给以这些有利用因素作为解释地膜覆盖条件下作物高产的原因所在。但是地膜覆盖可增高土壤空气中CO_2的浓度,以及柑桔苗和土豆根际富含高浓度CO_2时,可增加其干物质生产方面的试验结果亦有报道。鉴于上述各项研究成果,本试验的目的在于通过加富土壤空气中CO_2的浓度,旨在探索可否促进茄子的生长。 Some studies show that some different types of vegetable crops can greatly increase their productivity when they grow on mulch-covered soils. It is reported that eggplant grown under plastic film mulching production increased by about 300%. Film mulching can not only increase the temperature and humidity of the soil, but also reduce the damage of crop roots and inhibit the growth of weeds. However, people use these factors as reasons for the high yield of crops under plastic film mulching. However, film mulching can increase CO 2 concentration in soil air and citrus seedlings and potato rhizosphere have high concentrations of CO 2, which can increase their dry matter production test results have also been reported. In view of the above research results, the purpose of this experiment is to explore whether we can promote the growth of eggplant by enriching CO 2 in the soil air.