目前,棚室蔬菜生产中大多采用沟灌或畦灌,这 种传统灌水方式不仅浪费水,而且灌后地温明显降 低,还造成土壤板结、硬化、紧实度增大、通气性不良, 时间久了就会破坏土壤结构,使其理化性质恶化,这 种土壤生态环境极不利于植株的生长发育,尤其是根 系的发育。另外,还造成棚室内空气相对湿度明显增 加,致使病虫害加重。 At present, most of greenhouse vegetable production uses furrow irrigation or furrow irrigation. This traditional irrigation method not only wastes water, but also significantly reduces the soil temperature after irrigation, and also causes soil compaction, hardening, compaction, poor aeration, and over time Will destroy the soil structure, making it worse physical and chemical properties, this soil is extremely detrimental to plant growth and development, especially the root development. In addition, also caused the indoor air relative humidity significantly increased, resulting in increased pests and diseases.