Management techniques of rape in winter

Rape is a kind of vegetable that we often eat, and as its name implies, it is also a major food crop. The planting area in our country is very large, when planting rape, because of the change of season, its environment and temperature will also be different. Therefore, it is necessary for us to adjust our management methods. So how to manage rape in winter? The following editor brings you the management technology of rape in winter, let's have a look!

1. Ploughing and fertilization

When planting rape into winter, we must first do a good job of intertillage. Because the temperature in winter is very low, so ploughing can not only increase the soil temperature, but also make the soil loose, and also play a direct role in protecting the roots, which is very beneficial to the root growth of rape. Then an appropriate amount of organic fertilizer should be applied between rape rows, which can not only provide sufficient nutrition for rape, but also improve soil temperature. During the overwintering, rape can not only bloom and bolting normally, but also increase the potassium content of rape and reduce the freezing phenomenon.

2. Clearing ditches and discharging stains

When planting rape in winter, if you encounter a snowy day, remove the snow from the gutter in time after the snow. To avoid excessive stagnant water in the field, affecting the growth of rape roots, resulting in rape nutrition absorption blocked, unable to survive the winter safely. But also can prevent snow and water after disease, the emergence of daily leaf jelly phenomenon. This leads to the freezing injury of rape and, in serious cases, causes a large number of deaths of rape. Therefore, the work of clearing ditches and discharging stains is very important, and it is also a key measure to promote roots and protect leaves and strong seedlings to survive the winter.

3. Irrigation and anti-freezing

Before freezing in winter, we should pour in the right amount of frozen water. Freezing water is critical to rape overwintering, because it can reduce the temperature difference between day and night and improve the microclimate in the field. To prevent rape from being attacked by excessive low temperature, so as to reduce the phenomenon of dried and frozen seedlings. It is one of the main measures to improve the survival rate of rape overwintering. In addition, we can also spread an appropriate amount of plant ash or grain husk ash and other substances on the leaves of rape, which is very beneficial to prevent the freezing injury of rape.

4. Remove early bolting and early flowering

In winter, in order to improve the cold resistance of rape, prevent frost injury and increase the yield of rape. Rapeseed plants with early bolting and early flowering should be removed in time to avoid excessive apical growth advantage and excessive nutrition consumption. At the same time, it is also the key measure to change the nutrient transport route and nutrition center of gravity in the plant. The nutrient center of gravity was changed from the main stem of the plant to the branches of the lower part of the plant to improve the growth ability of the branches. After picking bolts and hearts, attention should be paid to the topdressing of quick-acting fertilizer to increase the position of fruit, so as to improve the quality and yield of rape.

The above is a brief introduction of rape winter management technology. That's all for today's introduction. This article is for reference only. I hope it can help you all.