When will the rape be harvested?

Rape generally begins to harvest in May every year. In April, rape blossoms begin to bloom. Generally, after 25-30 days of flowering, the seeds of rape flowers will mature. At this time, the rape should be harvested. Rape generally takes 2 months from growth to flowering. After flowering, it will enter the fruiting stage. In a month, the rapeseed will be ripe and can be harvested immediately.

1. When will the rape be harvested?

Rape is usually harvested in May. Rape, as a widely planted oil crop, is cultivated in many areas of China. It will be planted in April every year. After the rape blossoms, it takes 25-30 days for the rapeseed to mature, and then it is harvested immediately. If harvested too early, the yield and quality of rapeseed will be reduced. If the harvest is too late, the pods are easy to crack, leading to seed dropping.

Second, what are the requirements for the growth environment of rapeseed?

1, Temperature: Rape belongs to a cold-loving plant with strong cold resistance. The lowest temperature of rape seed germination can reach 4℃-6℃, but if the temperature is 20℃-25℃, it will accelerate the emergence of rape seeds.

2. Moisture: Rapeseed needs a lot of water during its growing period, and the demand for water at each stage is different. When rapeseed emerges, the soil moisture should be kept at about 65% and the bud stage should reach about 80%. After the pod setting period, the water content should be reduced to 60%-80%.

3. Fertilizer: NPK fertilizer is the best, and the ratio can be adjusted to 1:0.35:0.95. Rape is sensitive to trace elements, and if it lacks nutrition, it will easily lead to non-flowering, or the quality of rape will decline.

The harvest time of rape in China is different from the east, the west, the north and the south. Generally, the harvest time of rape in the north, east and west is similar to that of wheat, about five to ten days earlier than that of wheat. The harvest time of rape in western Shandong is around Xiaoman, the middle part is before the awning, and the harvest time of one-season rice in the south is close.