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前言无土栽培,在国外有几十年的历史。美国在本世纪卅年代就开始研究。印度、意大利、苏联研究无土栽培的历史也较长。无土栽培,就是使作物的根系脱离土壤环境,人为的创造环境条件,配制营养液,满足作物生长需要所采取的一种新的栽培方式。
Foreword Soilless cultivation, in foreign countries for several decades of history. The United States began research in the 1990s. India, Italy, the history of the Soviet Union to study soilless cultivation is also longer. Soilless culture is the new method of cultivating the root system of crops to get rid of the soil environment, artificially create environmental conditions, formulate nutrient solution and meet the needs of crop growth.