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无土栽培,是采取人工供给水和营养元素栽培植物的方法。此法可为我们提供优质卫生而无污染的蔬菜,水果等植物,并具有产量高、生长快,适宜于缺乏土壤的地区栽培植物等优点。1929年美国加利福尼亚大学教授格里克曾利用营养液成功地种出了一棵番茄,高7.5米采收果实14公斤。现在,世界上许多国家已把水培技术作为一项新技术进行开发。我国近二年也逐步兴起了无土栽培,并列入国家科研计划,现将我们的实验方法介绍如下:
Soilless cultivation is a method of cultivating plants by artificially feeding water and nutrients. This method can provide us with high quality health and pollution-free vegetables, fruits and other plants, and has the advantages of high yield, fast growth, suitable for cultivation of plants in areas lacking soil. In 1929, Professor Gerick, a professor at the University of California, USA, successfully planted a tomato with nutrient solution and harvested 14 kilograms of fruit at a height of 7.5 meters. Now, many countries in the world have developed hydroponic technology as a new technology. In recent two years, our country has also gradually developed soilless culture and is included in the national scientific research plan. Now we introduce the experimental methods as follows: