The straw quick-dissolving bacteria (MLBv19-3) can quickly produce fibrinolytic enzymes, and completely break down the coarse rice straw within 7 days. Compared with the traditional solid decomposition fertilizer, it is shortened by half, and the operation is labor-saving and convenient. Liquid hydrolyzate, as long as drip irrigation in the water inlet, can spread the decomposition bacteria evenly, 5-10 minutes per minute to complete the application, different from the solid decomposition fertilizer takes 30-40 minutes to complete the artificial spreading, shortened 3- 4 times the time.