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- Use uniform irrigation and fertilization practices to prevent the phase of bulb splitting.
- The use of slow growth of the onion bulb varieties can reduce the incidence of this disorder.
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- Uneven irrigation of onion fields increases the incidence of this disorder.
- Fields that are over irrigated, allowed to dry completely and then over irrigated again often have many split bulbs.
- Bulb mites are frequently associated with bulb splitting.
- The first symptom observed is the basal portion of bulb.
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