| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method, or the like, for promoting growth of plants, having concreteness applicable in general. <P>SOLUTION: A device for promoting growth of plants has such a mechanism that a stimulus signal generator outputs a stimulus signal of an AC electric signal, the stimulus signal includes frequency elements of the range from direct current to 100 KHz, and a random signal span (time span) with large amplitude and a weak signal span (time span) with weak amplitude (including a condition that amplitude becomes zero.) alternately appear. The duration of the random signal span and the duration of the weak signal span are each random, and the duration of the random signal span varies in a range of about 2-30 s, and the duration of the weak signal span varies in a range of about 2-40 s. The stimulus generator (an audio machine) changes the stimulus signal to a sound wave of ≥40 dB and a weak alternating magnetic field of 0.0001 mGauss to 50 Gauss. A plant is aerated with the sound wave and the weak alternating magnetic field. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
