Onion is rich in minerals and other nutrients besides the vitamins it contains, especially its immune system strengthening feature is reflected in the production of onions. Day length and temperature are two important factors that limit onion growing. In the early development phase of the plant, cool air is needed. However, the temperature must be high in order to bind and grow the head. The average temperature in the early development phase should be 13 C.
Onion is rich in minerals and other nutrients besides the vitamins it contains, especially its immune system strengthening feature is reflected in the production of onions. Day length and temperature are two important factors that limit onion growing. In the early development phase of the plant, cool air is needed. However, the temperature must be high in order to bind and grow the head. The average temperature in the early development phase should be 13 C.
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