What causes rapeseed stalk rot? What medicine should be used to prevent and treat rapeseed stalk rot?

Rapeseed is a common vegetable in life. It is deeply loved by people because of its rich nutrition and its effects of widening the intestines, promoting bowel movements, detoxifying and reducing swelling. However, many people encounter the phenomenon of rapeseed stalk rot when growing rapeseed. So what is the cause of rapeseed stalk rot? What medicine should be used to prevent and treat rapeseed stalk rot? Let's take a look.

What is the cause of rapeseed stalk rot?

1. The fertilization during the growth of rapeseed is not balanced, especially the boron fertilizer is not applied properly.

2. After the rapeseed blooms, there is too much water in the field, causing root rot.

What medicine should be used to prevent rapeseed stalk rot?

1. Change wet tillage and wet preparation to dry tillage and dry preparation

Rice fields where rapeseed is planted must be drained 5 to 7 days before plowing to improve soil structure, enhance soil permeability, and create good environmental conditions for rapeseed growth.

2. Change hole transplanting to trench planting

In fields with heavy clay soil, if the seedling holes are dug and transplanted in rainy weather, water will easily accumulate in the seedling holes, and the rapeseed seedlings will easily rot after transplanting. The method of digging trenches and placing seedlings, and then pressing the roots with soil and fertilizer, will make the roots of the rapeseed seedlings dry and breathable, and they will turn green quickly after transplanting without root rot and seedling death.

3. Change wide shallow furrows to narrow deep furrows

Appropriately narrowing the beds and digging deep trenches in the rapeseed transplanting field will help drain water from the soil, reduce soil moisture content, and allow soil ventilation and oxygenation.

4. Change flood irrigation to artificial irrigation to fight drought

When transplanting rapeseed and encountering a long drought, artificial watering should be carried out in time to resist drought, and flooding should not be carried out.

How to prevent frost in spring rapeseed

1. Irrigation to increase soil moisture and maintain ground temperature

After a cold wave warning is issued, water the soil in a timely manner to increase soil moisture, improve soil specific heat capacity, and reduce the extent of ground temperature drop caused by the cold wave.

2. Spray fertilizer to improve tolerance

Start spraying amino acids, brown sugar, etc. 1-2 weeks in advance. It is best to spray more than 2 times to increase the organic matter content of the leaves, lower the freezing point, and increase the cold resistance of the leaves.

3. Spraying pesticides to increase resistance

Spray regulators (Brassinolide, Bihu) or immune inducers (Atailing, etc.) to enhance the plant's stress resistance. It is best to spray twice in advance.

4. Physical protection to reduce frost

Take measures such as covering (film or shade net, etc.) to reduce the direct invasion of cold air and the direct harm of frost to reduce the occurrence of frost damage