The growth process of garlic seedlings from 1 to 15 days is recorded as follows:

1. Through observation, garlic seedlings grow faster in places with high temperature, but slower in places with low temperature. From the first day to the third day, garlic seedlings grow slowly in high temperature plots, which are 1cm on the fourth day, 32cm on the sixth day, 5cm on the eighth day and 13cm on the tenth day.

2. The low-temperature plot grew slowly from the first day to the fourth day, and did not sprout. It was cm on the fourth day, 1cm on the sixth day, 2cm on the eighth day, 4.5cm on the tenth day, 1cm on the twelfth day, 12cm on the fourteenth day, 14cm on the sixteenth day and 16cm on the eighteenth day.

planting method of garlic seedlings:

(1) site selection and fertilization

select soil with fertile soil, sufficient water and no pests and diseases in previous crops. Before planting, plough the soil and expose it to the sun, apply foot fertilizer and prepare the soil.

(2) Seed selection and soaking

Remove rotten and wounded seeds, select excellent healthy plants, divide them into different sizes, soak them in water for 3 days, and change the water once a day. Before sowing, the seeds can be stirred with calcium superphosphate to provide enough phosphorus for the seeds.

(3) timely sowing

The sowing time is generally around 18℃, and the border should be prepared before sowing to control the density of garlic seedlings and facilitate the later management. Pay attention to the planting density, and arrange the garlic seedlings neatly when sowing, and then cover the soil to the tip.

(4) Post-sowing management

After sowing, it is necessary to water enough root-fixing water, and water it in time after seedling emergence, so as to do a good job in soil water conservation. Watering should be carried out at the same time as soil cultivation. When the seedlings grow to a certain height, appropriate gibberellin can be sprayed and appropriate topdressing can be carried out later.