Rapeseed is very common in the market. It has a tender and refreshing taste and is not expensive. It has become a daily kitchen ingredient in many families. Rapeseed is not only delicious but also good. There are large areas of rapeseed fields in many parts of China. The weather is getting colder and colder now, do you know how to protect rapeseeds from wintering? Let's understand together.

rape

1.Increase phosphorus and potassium fertilizer

Phosphorus can promote rape root development and enhance resistance, and potassium can improve cold resistance, disease resistance and fall resistance of rape. Therefore, proper application of phosphorus and potassium fertilizer can effectively enhance the cold and frost resistance of plants.

2.Irrigation and freezing

The rapeseed field is irrigated once before the cold current is approaching. Generally, it can be carried out at noon on a sunny day with cold tails and warm heads. In this way, the temperature can be stably supplied, and the moisture during the wintering period of the vegetable seedlings can be supplied, and the dry-freezing can be effectively prevented, and the seedlings and roots can be protected.

Rape planting management

3.Foliar spraying fertilizer

Rapeseed spray fertilizer before winter, the key is to spray a new high-fat film combined with phosphorus and potassium fertilizer, which can increase the concentration of cell fluid, reduce freezing point, and enhance cold resistance.

4. Cover grass protection

Before the freezing damage, a layer of crop straw is covered on the rape leaf surface, which can reduce the cold wind from directly attacking the root of rapeseed; and a layer of plant ash can be sprinkled on the rapeseed leaf to prevent freezing.

5.Management after freezing

After the cold current, check the seedlings in time, find that the frozen seedlings are uprooted, and raise the soil in time to help the seedlings. In rainy and snowy weather, the accumulated water in the field should be eliminated as early as possible to prevent waterlogging from hindering root growth. When thawing, apply rapeseed ash to the rapeseed in time or spray the leaves on the leaves to protect the rapeseeds from overwintering.

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