The invention discloses a prevention and control
fertilizer for resisting banana wilt and a preparation method thereof. The prevention and control
fertilizer comprises 80 to 100 parts of an organic
compost, 40 to 50 parts of
urea, 30 to 45 parts of a
phosphorus fertilizer, 40 to 50 parts of a
potassium fertilizer, 10 to 20 parts of
nitrohumic acid, 30 to 40 parts of
silicon dioxide, 5 to 10 parts of a filling material and 10 to 20 parts of an antagonistic
microbial agent. The preparation method comprises the following steps: uniformly mixing an
organic fertilizer, and carrying out stacking and
fermentation so as to obtain a fermented mixture; naturally cooling the fermented mixture to 25 to 30 DEG C, then adding the
urea, the
phosphorus fertilizer, the
potassium fertilizer and the antagonistic
microbial agent into the fermented mixture, and carrying out uniform mixing for refermentation; and crushing the
silicon dioxide and the filling material until the particle sizes of the crushed
silicon dioxide and filling material are 200 meshes or above, adding the crushed
silicon dioxide and filling material
powder into a ferment obtained in the step S2, carrying out uniform mixing under stirring, and carrying out
granulation and
drying in the air so as to obtain the prevention and control fertilizer for resisting the banana wilt. According to the invention, on the basis of reasonably controlling
nitrogen and increasing
potassium, absorption of bananas to a silicon element is increased; and by combination of the antagonistic
microbial agent, the banana wilt is inhibited.