蔬菜无土栽培,是指不用天然土壤,而用营养液栽培蔬菜的方法。优点是可扩大种植范围,加速蔬菜生长,提高蔬菜质量,节省肥水、劳力和费用。一般以无机盐类配制营养液,其中的某些成分往往会与其他物质反应而形成沉淀物,影响作物吸收利用。为此,应注意以下事项。 Soilless cultivation of vegetables, refers to the use of natural soil, but with nutrient solution cultivation of vegetables. The advantage is to expand the scope of planting, accelerate the growth of vegetables, improve the quality of vegetables, save fertilizer, labor and costs. Generally formulated with inorganic salts nutrient solution, some of which often react with other substances to form a precipitate, affecting the crop absorption and utilization. To this end, should pay attention to the following matters.