Summary
A new hydroponics system made up of a box and a tube sprinkler was tested. A box 0.6m in width, 0.8m in height, and 6m in length was slightly insulated, except for the bottom area, which only had PE film laid on it. The sprinkler, set in the middle of the box, sprays over plant roots suspended at the top plate of the box, and also regulates the inside temperature.HomePage
About 10 kinds of vegetables including their roots grew very well, and their nutritive values (vitamins, minerals, etc.) were higher than that of Japan Foods Standard Components.
The thermal performance between box and soil was as expected. The result of thermal analysis showed the water volume in the bottom in the box is suitable when it is 50`100mm in depth.Keywords: hydroponics, fountain type, vegetable growing, nutritive value, thermal performance, diurnal change, periodic stationary state