The study was to examine the application of sonic bloom and refugia plants increase growth yield mustard greens (Brassica juncea L.). This used a Factorial Time Series Randomized Block Design (FTSRBD) with 3 replications. factor (R) are levels: R0 = control, R1 Ocimum basilicum, R2 Zinnia elegans different locations consisting (S0) no sound, (S1) heavy metal music frequency 21 -14000 Hz (S2) cl...