无土栽培是指不用土壤而直接用营养液浇灌的一种栽培方式。近几年来,随着庭院经济的开发,无土栽培已经成为城乡居民栽种蔬菜的发展模式,其优点有:1.比传统栽培缩短生育期1/3。2.不受气候、土壤和季节的影响,可连茬、重茬和 Soilless cultivation refers to a method of cultivation that is irrigated directly with nutrient solution without soil. In recent years, with the development of the courtyard economy, soilless culture has become the mode of development for vegetables planted by urban and rural residents. Its advantages are as follows: 1) Reduce the growth period by 1 / 3.2 than the traditional cultivation, and not affected by climate, soil and season Impact, continuous cropping, cropping and cropping