When is the best season to plant rapeseed? How to plant rapeseed in low temperature?

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. So when is the season for rapeseed to have a high survival rate? How to make rapeseed resistant to cold in low temperatures? The following editor will explain them one by one, hoping to be helpful to everyone.

When is the best season to plant rapeseed?

Spring rapeseed

It is mainly concentrated in the Northeast and Northwest regions, especially in Hailar, Inner Mongolia. Since the Northeast and Northwest are cold regions, they need to be planted at the end of April in spring and summer and can be harvested by the end of September of the same year.

Winter rapeseed

It is mainly concentrated in the middle and lower reaches of the Yangtze River, and its output accounts for more than 90% of my country's rapeseed output. The sowing time in the main producing areas is from the beginning of September to the middle of the year. If you choose to transplant it, it is transplanted in mid-October. At this time, the rapeseed is about 35 days old and has grown 6 leaves. It is the best time for transplanting, and it will be harvested at the end of May of the following year.

How to do a good job of cold resistance when planting rapeseed at low temperatures

1. Cultivation and soil cultivation can increase the soil temperature, so that the roots of the seedlings will not be frozen.

2. Dig trenches in the soil and apply fertilizer, which can achieve better insulation effect and increase the heat capacity of the soil.

3. Irrigation water in winter can increase the heat capacity of the soil and prevent the seedlings from freezing to death.

What should be paid attention to when planting rapeseed

1. Rapeseed likes moisture, coolness and cold resistance. The disadvantage is that it is susceptible to fungal diseases, is infected quickly, and is prone to aphids. In the middle and late stages, it is easy to fall over due to its high height. Generally, antibacterial drugs should be applied once in the jointing stage in early spring, and anti-aphid drugs can be applied twice in late March and early April.

2. The rapeseed field should not be too strong. When planting in autumn, you can apply enough base fertilizer (mixed). If the seedlings turn yellow in the twelfth lunar month, you can apply 20 kilograms of urea. After the end of the year, no top dressing is generally required to avoid blind seeds and lodging in the later period.

3. Rapeseed can be planted in rows on small plots. Large plots can only be sown directly. Plant before Cold Dew, and freeze to death during the Great Cold. It is generally ideal to plant ten days before the Frost Descent. Pick the seedlings in early November of the lunar calendar, cultivate and weed in early spring, and prefer drought after March. It is not suitable to water (watering will cause the seedling to fall over).