What are the environmental requirements for growing scallions

Scallions are an indispensable side vegetable in our daily lives; adding a little scallion when cooking can enhance the aroma of a dish. They are grown all over our country, but some yields are less than satisfactory, because many friends do not manage the growing environment well when planting. For example, light, soil, temperature and other factors are very important to the growth of scallions. So what are the environmental requirements when growing scallions? Let's take a look!

1. Temperature

The growth of scallions has a strong ability to adapt to temperature, and they can grow normally under both high and low temperatures. But if you want to achieve high yields, you still need to keep the temperature within the range most suitable for scallion growth. For example, the most suitable temperature for scallion germination is around 20 degrees; if this temperature is well controlled, scallions can germinate in no more than 3 days. The leaf growth temperature is around 20 degrees, while that for the white part of the scallion is around 15 degrees, which is beneficial to the growth of scallions and increases the yield.

2. Light

Scallions are not strict about light; it is enough to keep the light intensity and duration moderate every day. This is because scallion leaves are different from those of other crops: the leaves are cylindrical, so even if planted densely, most scallions can still get enough light. In addition, the growth of scallions is not suited to strong light; strong light will cause scallions to age prematurely and reduce their quality, and in severe cases they lose their commercial value.

3. Moisture

Scallions have relatively few roots and are not very strong at absorbing fertilizer and water; generally the roots of scallions are in the shallow layer. Their water requirements are relatively high, and during the growing process the soil needs to be kept in a moist state. However, although scallions like water, they are not tolerant of waterlogging. If there is too much standing water in the field and it is not drained in time, scallions are very prone to waterlogging damage, the roots cannot breathe, begin to rot and eventually die.

4. Soil

A soil pH of around 7 is the acidity and alkalinity level most suitable for scallion growth. Fertile soil with a loose texture and a strong ability to retain water and fertilizer helps promote the germination and emergence of scallions and enhances the nutrient absorption capacity of the roots. After emergence, the soil must be kept in a loose state; soil compaction will reduce the growth rate of scallions and may even stop their growth. Half a month before planting, control the watering frequency to prevent lodging later on.

5. Fertilizer

Scallions need a large amount of nutrients throughout their entire growth period, and their fertilizer demand is also relatively large, while the nutrients they require are fairly wide-ranging. During the seedling stage, nitrogen fertilizer should be emphasized, but it should not be applied excessively or in a one-sided way. At the maturity stage, the focus of fertilization needs to shift to phosphorus and potassium; if scallions lack phosphorus, it will affect their growth and reduce the yield. Attention should also be paid to supplementing some trace elements; supplementing trace elements is the key to increasing yields.

The above is a brief introduction to the environment needed for growing scallions. Growing scallions is very easy, but everyone needs to manage it well to ensure the normal growth of scallions. When harvesting, everyone should note: do not pull the scallions up by the roots; instead cut them above the roots with a knife or scissors, and new scallions will still grow from the roots afterward. That is all for today's introduction. This article is for reference only, and we hope it is helpful to everyone.