Environmental requirements for planting green onions

Green onion is an indispensable side dish in our daily life. Putting a little onion when cooking can increase the flavor of the dish. It is planted all over our country, but some of the output is not satisfactory, because many friends do not manage the planting environment well when planting. For example, light, soil, temperature and so on, these factors are very important for the growth of green onions. So what are the environmental requirements when growing green onions? Let's have a look!

1. Temperature

The growth of green onion has a strong adaptability to temperature and can grow normally at high temperature and low temperature. However, in order to achieve high yield, it is necessary to control the temperature within the range that is most suitable for the growth of green onions. For example, the most suitable temperature for green onion germination is about 20 degrees. If you control this temperature, green onions can germinate in less than 3 days. The growth temperature of leaves is about 20 degrees, and the white onion is about 15 degrees, which is beneficial to the growth and yield of green onions.

2. Lighting

Green onions do not have strict requirements for light, as long as the light intensity and time are controlled at a moderate level every day. Because the green onion leaves are different from other crops, the green onion leaves are cylindrical, and even if they are planted densely, most green onions can still get enough light. And the growth of green onions does not adapt to strong light, strong light will lead to premature aging of green onions to reduce the quality, serious loss of commodity value.

3. Moisture

The root of scallions is relatively few, and the absorption capacity of fertilizer and water is not very strong. Generally, the roots of scallions are in the shallow layer. The requirement for moisture is relatively high, and it is necessary to ensure that the soil is in a moist state in the planting process. However, although green onions like water, they are not resistant to waterlogging. if too much water in the field is not discharged in time, green onions are extremely prone to waterlogging, the roots can not breathe, and begin to rot and eventually lead to death.

4. Soil

The soil PH value of about 7 is the most suitable acid-base degree for the growth of Welsh onion. The soil with fertile soil, loose soil and strong ability of water and fertilizer conservation is beneficial to promote the germination and emergence of Welsh onion and enhance the nutrient absorption capacity of roots. After emergence, it is necessary to ensure that the soil is in a loose state, soil consolidation will reduce the growth rate of green onions, or even stop growing. The watering frequency should be controlled half a month before planting to prevent lodging in the later stage.

5. Fertilizer

The whole growth period of green onion needs a lot of nutrition, the amount of fertilizer is also relatively large, and the nutrition needed is more extensive. It is necessary to focus on the application of nitrogen fertilizer at the seedling stage, but it should not be overapplied. When it comes to maturity, it is necessary to shift the focus of fertilization to phosphorus and potassium, if the lack of phosphorus in green onions will affect the growth of green onions and reduce the yield. We should also pay attention to the supplement of some trace elements, and the supplement of trace elements is the key to increase production.

The above is a brief introduction to the environment needed to grow green onions. It is very easy to grow green onions, but we need to manage them well to ensure the normal growth of green onions. We need to be careful when harvesting, do not pull up the green onions from the roots, cut them above the roots with knives or scissors, and then grow new onions on the roots. That's all for today's introduction. This article is for reference only. I hope it will be helpful to you.