Rapeseed cultivation methods and precautions

1. Maintenance methods

1. Temperature: It is heat-resistant but not cold-resistant, so it is not suitable for planting in the north. Most of its distribution areas are in the southwest. The maintenance temperature must be kept above 20 degrees so that it can grow normally.

2. Watering: It likes moisture, especially during the development period, it needs a lot of water. When the temperature is relatively high, it needs to be watered once every two days. When the temperature is relatively low, it needs to be watered two to three times a week. After the results, watering should be controlled in order to promote the growth of fruit pods.

3. Fertilization: It consumes nutrients relatively quickly, especially during the growing season. In addition to the base fertilizer used in the soil before planting, fertilization is required three to four times during the entire growing period. The fertilizer used should be a fertilizer with a relatively comprehensive fertilizer effect. Human and animal manure and urine can also be used. When fertilizing, be careful that the fertilizer cannot directly contact the plant body, otherwise the plant will be burned.

4. Light: It is a long-day plant and has a very high demand for light. It can receive full-day sunlight. If it is a potted plant, it is best to place it in a sunny place and ensure that the daily sunlight time is more than six hours.

2. Breeding techniques

1. Reproduction: Rapeseed can be propagated by sowing. Because the seeds are relatively low and have a low germination rate, you need to choose a higher quality culture medium and adjust the maintenance environment to increase the germination rate. If you sow in the open field, the row spacing should be controlled at about 20 centimeters. After sowing, cover them with a centimeter thick layer of fine soil and water them thoroughly. They will germinate in about a week.

2. Repotting: If you keep the plant at home, you need to repot it every year. When repotting, you need to trim off the rotten and dry roots, and use soil with good drainage and sufficient nutrients.

3. Problem Diagnosis

1. Pests: Rapeseed is more susceptible to aphids. Aphids will attach to the top of each branch and eat the tender leaves of the plant, which will affect the health of the plant. At this time, it is necessary to use omethoate to spray it for treatment.

2. Diseases: Rapeseed is more susceptible to sclerotinia disease during the flowering and fruiting stages. After infection, the leaves of the plant will turn yellow, which will directly affect the yield. During daily maintenance, prevention and control must be done well. You can use dimethoate emulsion to soak and spray for prevention.