Onion planting technology and management methods (detailed explanation of onion cultivation steps and technical points)

Onion planting technology and management methods

Onion is a common vegetable in our daily life. It can not only be used as a dish alone, but also as a seasoning for many dishes. At present, there are still many areas in my country where onions are grown. So, how can onions be grown more productively? Let's take a closer look.

①Plot selection

Onions have a strong ability to adapt and can grow normally in almost any soil. However, since the absorption capacity of onion roots is not very good, it is still necessary to choose a plot with fertile and loose soil for planting .

In addition, the soil's ability to retain fertilizer and water and its permeability should not be too poor. Such soil can promote the growth and development of roots, so that onions can grow better. In addition, onions need sufficient light time during their growth, so the planting site should be selected in an area with sufficient sunlight.

② Land preparation and fertilization

1. Land preparation to ensure permeability

After choosing the onion planting site, you need to start land preparation. When preparing the land, you need to determine the degree of land preparation based on the soil fertility and permeability of the planting site.

Generally , the soil should be finely ground to ensure that there are no clods of excessively large soil in the planting site, which can increase the permeability of the planting site .

2. Exposure to the sun for sterilization

After plowing the soil, don't rush to flatten it. First, expose the soil to the sun for five to seven days to allow the light to kill the bacteria and parasites in the soil.

3. Apply base fertilizer

Then apply base fertilizer to the planting site and mix the fertilizer and soil together to improve the fertility of the soil and enhance the growth ability of the seedlings.

The application of basal fertilizer should be carried out together with land preparation, and the amount of basal fertilizer should be determined according to the actual area of ​​the soil. The basal fertilizer should be fully decomposed farmyard manure, which can be combined with appropriate amounts of nutrients such as phosphorus, potassium, and calcium.

4. Subsequent topdressing

After the onion seedlings grow, the first topdressing should be carried out. This topdressing mainly uses nitrogen fertilizer, which can effectively increase the growth rate of seedlings.

③Sowing and planting

The correct sowing time is the key to ensuring the normal growth of seedlings. Improper sowing time will lead to stunted growth of onions and affect the yield and quality of onions.

The time for sowing in the south can be chosen in mid-September . According to the previous onion germination situation, the sowing can be reasonably controlled, and the seedlings can be checked and supplemented in time after they emerge from the soil.

After sowing, cover the seeds with about one to two centimeters of nutrient soil to ensure that the seedlings are even after they emerge from the soil. When the seedlings are almost all unearthed, they can be transplanted and planted .

Select the seedlings that are growing weakly, too large, or growing vigorously, and plant the seedlings of the same specifications together. This will make later management easier.

④Field management

After the seedlings are planted, attention should be paid to management to prevent and control diseases in the seedlings and to carry out disease prevention and control work in a timely manner .

Because onions are planted almost in autumn, when the temperature is relatively low, do not water them too much after planting. Excessive watering will cause the surface temperature to drop, which will reduce the growth rate of the onion seedlings.

However, when managing the field, you must pay attention to watering when necessary, but pay attention to the amount to ensure that it does not affect the growth of the seedlings .