Spring has arrived, the temperature has risen, and the planted leeks have begun to sprout again after a cold winter.
But the weather in spring is too unstable, just like the "unexpected" cold this spring. It was over 20 degrees yesterday, but it is close to 0℃ today, and the temperature difference is too great. The influence of such temperature on crops growing in open fields can be imagined.
As we all know, leek is a kind of "lazy dish", which is growing all year round. Its cold resistance and heat resistance are among the best.
So it can grow in winter, but the growth rate is very slow, so slow that it can hardly be seen.
Even so, when spring comes, leeks begin to grow faster. If the temperature drops again at this time, freezing injury or frostbite will occur, which will have an impact on the yield and quality of leeks. Then, what should I do if the leek planted in the open field encounters "cold spring"?
One is the commonly used "root burial method"
Many growers will bury the roots of leeks with soil in late autumn and winter. The purpose of this is to keep warm, which can not only improve the soil structure, but also keep warm and moist, which is beneficial to the growth of leeks, especially in low temperature environment.
Second, water in advance to prevent frostbite.
Pay attention to the weather forecast, and water and irrigate in advance when the weather is predicted to change, which can increase soil moisture and effectively prevent soil cooling, and the preventive effect is still great.
Third, use plant ash.
Plant ash, a good collocation of leeks, is rich in potassium, which can be used as fertilizer, disinfection and sterilization, raising ground temperature and keeping warm effectively.
In a word, leek itself is a kind of crop with good cold resistance. As long as we take defensive measures according to our own situation, even if the "cold spring" comes, there can be no problem!