Requirements of rapeseed on growth environment

Compared with European rape, rape is a cruciferous oil crop, and it is currently one of the main oil crops. Rape planted in the south is sown in autumn and cultivated over the winter, and it must undergo low temperature vernalization in order to blossom and bear fruit, so the north is more suitable for planting than the south. Some specific basic requirements for the environment will be speeded up for you one by one.

1. Lighting

Rape is a short-day plant, the requirements for light are not strict, generally planted in winter light can meet the conditions of light growth. However, different light needs to be adjusted in different periods, which may be more beneficial to growth, but it is generally planted in the open field, and the sowing date may only be adjusted.

2. Temperature

Rape is very sensitive to temperature. in general, sowing seeds can germinate when the temperature is about 15, and then the seedling temperature can grow almost all the time. The temperature for plant growth should be above 10 degrees Celsius. The low temperature in winter after winter can help complete vernalization, and the temperature must be below zero. Warm winter, may be poor flower bud differentiation, less pods, empty shell.

3. Fertilizer and water

Rape likes fertilizer tolerance and can apply more fertilizer, and then the root system has a strong ability to absorb fertilizer, so it can apply more fertilizer. Before winter, it is mainly to apply nitrogen fertilizer, phosphate fertilizer and trace elements, calcium and boron fertilizer, so as to ensure the good growth of leaves. After the beginning of spring, potash fertilizer is mainly applied to strong stalks to prevent lodging, boron fertilizer promotes flowering, and nitrogen fertilizer is applied less. Turn the soil 40 cm before winter and bury the base fertilizer deeply, so you can apply less fertilizer in winter. Watering after the base fertilizer is covered with soil is beneficial to absorption. Irrigation before winter is carried out many times after slowing down seedlings, keeping 50% water content, no irrigation in winter, no irrigation in flowering.

4. Soil

Rape has main root, straight root, more developed root system, wide distribution and many branches, so it needs deep, loose and permeable soil, which can not be hardened, hardening respiration is not good, and the root system is anoxic, which is not conducive to growth. It is required to plant in fields that preserve fertilizer and water and do not accumulate water.

Rape growth has strict requirements on soil and temperature because of its unique growth characteristics. For light, fertilizer and water is not strict because of strong adaptability, even if not satisfied, the impact is not great. But in order to produce a high yield, it is necessary to provide a better planting environment.