Cultivation methods and precautions of rapeseed

1. Maintenance methods

1. Soil: Fertile, loose and breathable soil can make it grow better. Generally, sandy soil can be used.

2. Water: It is suitable for growing in an environment with high humidity and heavy rainfall. The soil should be kept moist during the cultivation period and provided with sufficient water so that strong and leafy lettuce can be harvested.

3. Nutrients: Before planting, spread the decomposed organic fertilizer evenly on the soil, and then turn it over and stir it so that the nutrients in the soil can fully volatilize.

4. Light: Sufficient sunlight is needed during the cultivation period, but it is not suitable for direct sunlight. Too strong light will cause sunburn to its stems and leaves.

2. Breeding techniques

1. Pruning: During the growth period, the lettuce will have weak seedlings and rotten branches and leaves. At this time, they should be pruned in time to avoid infecting other healthy plants and affecting the absorption of nutrients.

2. Reproduction: Sowing is usually used for reproduction in April and mid-to-early July. Sprinkle the seeds evenly on soil with sufficient nutrients, then sprinkle a layer of fine soil and spray some water to moisten the soil layer. You can see the lettuce growing in about a week.

3. Problem diagnosis and treatment

1. Sclerotinia disease: Sclerotinia disease is easy to occur under conditions of poor ventilation and air permeability. Untimely prevention and control will cause the entire plant's leaves to wilt and die. Just spray it with a diluted solution of carbendazim and vitality agent.

2. Aphids: Aphids are a common pest of lettuce. They can cause the leaves of lettuce to curl up and then survive on the curled leaves. If pests are not removed in time, the yield of lettuce will be greatly reduced. Using diluted aphid-resistant pesticide for spraying can have a very good effect.

IV. Other issues

1. Is it edible? Lettuce is edible because it is a very common vegetable and people grow it for consumption.

2. Can it be exposed to rain: It can be exposed to rain, because it is a plant with high water demand, and sufficient water can make it grow better. However, during heavy rains, the water in the soil must be removed in time.