How does rapeseed spread its seeds

Every year from March to April, rapeseed flowers bloom all over the hillsides, looking very beautiful, and once the flowers fade, plump seeds grow. So how does rapeseed spread its seeds? And how should it be planted?

1. How does rapeseed spread its seeds

The rapeseed fruit is a silique, which splits open when mature and disperses by its own elastic force. Rapeseed seeds themselves have weight, and after maturity the fruit or seeds fall directly to the ground due to gravity. Of course, artificially planted rapeseed can be spread by human hands.

2. How to plant rapeseed

1. Seed selection

According to the local cultivation system and climatic conditions, and in light of the local soil fertility level and production situation, choose varieties with strong stress resistance and good yield performance.

2. Site selection and land preparation

The seedbed should be chosen in a plot that is ventilated and sunny, with fertile and loose soil, and close to a water source, and the land should be prepared carefully. Seedbed preparation should achieve “level”, “fine” and “firm” conditions.

3. Sowing

Sow the seeds evenly into the soil, cover with a layer of soil, and water an appropriate amount. Generally, the suitable germination temperature requires a daily average temperature of 16-22°C, and the seedlings also need 10-15°C or above for leaf emergence to proceed smoothly. In addition, it is necessary to ensure at least 40-50 days of effective growth period after transplanting before entering overwintering.

4. Transplanting

When the seedlings are 30-35 days old, have 5-6 green leaves, and roots are 5-6 mm thick, they can be transplanted into the field. When transplanting, use a row spacing of 50 cm × 20 cm, planting about 7,000 plants per mu, transplant while covering with soil, and water promptly with settling water after transplanting. Three days after transplanting rapeseed, check for gaps and fill in missing seedlings.