1. temperature: heat-resistant but not cold-resistant, not suitable for planting in the north. Its distribution area is mostly in southwest China, and it can grow normally when the curing temperature is above 20 degrees. 2. Watering: It likes humidity, especially during the development period, and needs a lot of water. When the temperature is high, it needs to be watered once every two days, and when the temperature is low, it needs to be watered two or three times a week. Therefore, watering should be controlled in the future to promote the growth of fruit pods. 3. Fertilization: It consumes nutrients quickly, especially in the growth period. In addition to the base fertilizer used in the soil before planting, it needs to be fertilized three or four times during the whole growth period. Fertilizer seeds with comprehensive fertilizer efficiency can also be used with human and animal manure. When applying fertilizer, it should be noted that the fertilizer cannot directly contact the plants, otherwise it will burn the plants. 4. Illumination: It is a long-day plant, and it has a great demand for illumination, so that it can receive all-day sunshine. If it is a potted plant, it is best to maintain it in a sunny place, and the light time should be more than six hours a day.
Second, feeding skills
1. Breeding: Rape can be propagated by sowing. Because the germination rate of seeds is relatively low, it is necessary to choose high-quality culture medium and adjust the conservation environment to improve the germination rate. If you sow in the open field, the row spacing should be controlled at about 20 cm. After sowing, cover it with fine soil with a thickness of 1 cm and water it once, and it will germinate in about a week. 2. Change the pot: If the home is being repaired, change the pot once a year. When changing pots, the rotten and dry roots should be trimmed off, and the soil with good drainage and sufficient nutrients should be selected.
Third, the problem diagnosis
1. Pest: Rape is easily infected with aphids, which will attach to the top of each branch and eat the young leaves of the plant, affecting the health of the plant. At this time, you need to spray omethoate. 2. Disease: Rape is more susceptible to Sclerotinia sclerotiorum infection during flowering and fruiting. After infection, the leaves of plants will turn yellow, which directly affects the yield. In the usual maintenance, prevention and control should be done well. It can be prevented by soaking and spraying dimethoate emulsion.
Fourth, other issues.
1. Edible: Edible, rapeseed can be used to extract oil. 2. Toxicity: non-toxic.