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无土栽培具有使作物高产、节水节肥、省工省力,清洁卫生,以及应用方便,不受地域限制,适于现代化、机械化、工厂化生产等特点.因此,近几年该项栽培技术在我国呈现出发展的势态.但在生产中也出现了一些问题,应该引起我们的重视.(一)上马过于盲目 无土栽培是一项技术含量极高的栽培方式.它的诸多优势的发挥必须依赖于成熟的技术,对生产者的技术水平要求较高.如果栽培技术跟不上,不但不能增产增效,反而还不如土壤栽培时高.仅把有土改为无土,并不能增产.有些地方在无充分的技术保障的情况下,就匆匆上马,结果事与愿违,不能收到预期的增产效果.(二)过于“迷信”水培 许多种植者,一开始进行无土栽培时,就采用
Soilless cultivation has the characteristics of high yield, water saving and fertilization, labor-saving and labor-saving, clean and hygienic application as well as convenient application without being limited by geographical area, suitable for modernization, mechanization and industrialized production, etc. Therefore, in recent years, However, some problems have arisen in production, which should arouse our attention. (A) Blind soilless cultivation is a highly technical cultivation method, and its advantages are exerted Must depend on the mature technology, the producer of the higher technical requirements.If the cultivation techniques can not keep up, not only can not increase production efficiency, but not as high as when the soil is cultivated.Only from soil to soil, and can not increase production. In some places, hurriedly launched without sufficient technical support, the result was counterproductive and could not receive the expected stimulation effect. (II) Too superstitious hydroponic cultivation Many growers, beginning with soilless culture, adopted