Abstract
This study aims to determine the effect of exposure and sound intensity level of audio bio harmonic (Dundubia manifera) manipulated with a peak frequency of 4500 Hz in the morning, afternoon, and evening on the growth of corn (Zea mays) plants. We used two agricultural fields, one as control land and the other as experimental land. To exposure the audio bio harmonic sound, we used an audio bio harmonic device (ABH) taken from Dundubia manifera sound manipulated to a sonic bloom frequency. Sound exposure in the morning, afternoon, and evening are held at 07.00-08.00, 12.00-13.00, and 16.00-17.00 respectively. The results show that the experimental plant growth rate was strongly influenced by the sound exposure time. It shows that in the morning, where the selection of a certain intensity determines the growth rate of the plants.
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