1. The growth process of garlic can generally be divided into six stages: germination stage, seedling stage, flower bud differentiation stage of scale bud, garlic moss extension stage, bulb expansion stage and dormancy stage.

2, garlic from sowing garlic cloves to harvesting garlic, re-obtaining new garlic cloves, entering the dormancy period is called a growth cycle. The growth period of garlic varies greatly with different sowing dates. Generally, the growth period of spring sowing garlic is short, only 90 ~ 100 days.

3. Garlic sown in autumn needs a long wintering period, and its growth period is 220 ~ 240 days. The growth and development of garlic can only be completed under certain light and temperature conditions. Therefore, even in different sowing dates in the same area, the maturity is basically the same, but the yield is quite different.

4. Shortening the growth cycle of garlic actually shortens the vegetative growth period of garlic and reduces the total number of leaves and the accumulation of dry matter. Therefore, the output of garlic sown at the wrong time is not high.

5. In the production practice, if the stubble of garlic sown in autumn conflicts with the sowing season, it is an important measure to cover the garlic sown late with nylon plastic film, which can improve the environmental conditions such as soil temperature, moisture and fertilizer supply, increase the growth of garlic in wintering period, increase nutrient accumulation and promote growth and development.