| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problems wherein a cultivated plant easily develops a disease and requires considerable days for harvesting time although the cultivated plant is grown by regulating the pH and the EC concentration of a conventional liquefied fertilizer. <P>SOLUTION: The nonconventional optimum liquefied fertilizer can be obtained, not relying only on the conventional pH and the EC concentration of the fertilizer, by passing air obtained from a rotary pump 1 or the like through a pipe 2, and circulating the liquefied fertilizer in a tank 3 by a tornado flow caused by a liquefied fertilizer-activating device 4 installed in the bottom part of the liquefied fertilizer tank 3 to afford following three points of circulation of the liquefied fertilizer, a proper concentration of dissolved oxygen, and ionization obtained by the strong shearing of the liquefied fertilizer. The installation position of the liquefied fertilizer-activating device 4 by the strong shearing is the position at about 1/3 of the diameter of the liquefied fertilizer tank, i.e. the activating device is required to be installed at a position deviated from the center of the liquefied fertilizer tank. <P>COPYRIGHT: (C)2009,JPO&INPIT |
