无土栽培(Soilless culLure)是指不用天然土壤,使用或不使用基质,用营养液灌溉植物的根系,或用其他施肥方式来种植作物的方法。因其以人工创造的作物根系环境取代了土壤环境,可有效解决传统土壤栽培中难以解决的水分、空气和养分供应的矛盾,使作物根系处于最适宜的环境条件下,从而充分发挥作物的增产潜力,提高作物品质,调整供应期,利于机械化、自动化、工厂化生产, Soilless culLure refers to a method of growing a plant by irrigating the root system of a plant with a nutrient solution without using natural soil, with or without a substrate, or by other fertilizing methods. It replaces the soil environment with artificially created crop root system, which can effectively solve the contradiction between water, air and nutrient supply, which is difficult to be solved in traditional soil culture. The root system of crops is under the most suitable environmental conditions so as to give full play to crop yield increase Potential, improve crop quality, adjust the supply period, which will benefit mechanization, automation, factory production,