1, weather factors: warmer temperatures, rain and other good weather conditions to help garlic growth, increase production, so that prices rose. On the contrary, the weather is too dry and too cold will affect the production of garlic, triggering price increases.

2, policy factors: garlic prices are affected by government support policies. The government through the implementation of garlic price intervention, the purchase of garlic and other initiatives to stabilize garlic prices.

3, market demand: garlic is an easy to store vegetables, and has a high nutritional value. During the epidemic, garlic market demand is strong, the price rose.

4, import factors: Pizhou garlic prices are affected by the price of imported garlic. Domestic and foreign garlic prices vary greatly, domestic garlic prices are relatively low, while imported garlic prices are high. So when the price of domestic garlic increases, the impact of imported garlic appears to be greater.