Garlic is a shallow-rooted crop with no roots. Hair roots are around the shortened stem, with the most on the outside and less on the inside. The longest root can reach more than 50 cm, but the main root groups are distributed in the soil layer of 5-25 cm, with a lateral range of 30 cm. The number of adult hair roots is 70- 1 10.
Growth habit of garlic
1, temperature: like cold and cool, the suitable temperature is -5-26℃. The 4-5 leaf stage of garlic seedlings has the strongest cold tolerance, which is the most suitable winter in Miao Ling.
2. Illumination: Garlic in Chunhua begins to differentiate into flower buds and scale buds under long sunshine and high temperature conditions of 1.3 hours or more, which is only suitable for the growth of stems and leaves in short sunshine and cold environment.
3. Humidity: I like humidity and fear drought.
4. Soil and nutrition: the requirements for soil are not strict, but fertile loam with rich organic matter, loose air permeability and strong water-retaining and drainage performance is more suitable.