How to plant broccoli seeds? How to manage the seedling stage?

Broccoli is a green leafy vegetable that looks very similar to cauliflower. It is very popular because of its low calorie and high nutritional value. At present, it is being planted in many areas. How to grow broccoli seeds? How to manage the seedling stage?

1. Broccoli introduction:

1. What are the varieties of broccoli?

Excellent, future, landscape, green belt, holy green.

2. In which season is broccoli a vegetable?

Broccoli is generally available all year round, but the season is in spring, so most of the broccoli planted at other times are grown in greenhouses or greenhouses.

Second, how to plant broccoli seeds?

1. Seed selection: what kind of seed should be chosen?

Choose some seeds that are glossy, damage-free and disease-free.

2. Seed soaking: for how long?

After the seeds are selected, soak them in 22 degrees warm water for 15 minutes, then stir until the water temperature drops to 20 degrees. Finally, soak in warm water for 4 hours, remove and wash.

3. Seed germination: how to accelerate it?

Wrap the soaked seeds with wet gauze and then put them at a temperature of 20 degrees. During development, rinse them with clean water every day.

4. Nursery bed selection: what kind of seedbed is suitable for planting?

Broccoli seeds are suitable to grow in the environment of loose and fertile soil, rich humus and good drainage and irrigation, so it is best to choose the seedling bed rich in humus as far as possible. After selecting the seedbed, dig the soil deeply half a month before sowing, and then sprinkle 15 kilograms of ternary compound fertilizer, 5 kilograms of calcium superphosphate fertilizer, and 2500 kilograms of mature manure on each mu a week in advance, and finally flatten it to prepare for sowing.

5. Sowing: how to sow?

(1) sowing time: generally sowing in March or early July. If it is a solar greenhouse, it is usually sown from late July to August or early September to early October. If it is planted in a plastic greenhouse or a small arch shed, the seeds are usually sown in November or January.

(2) sowing method: before sowing, pour a small amount of water on the seedbed, then sprinkle the phoxim agent, and finally spread the seeds evenly on the seedbed, sprinkle with a layer of carbendazim or dimethazone, spread the sunshade net, and finally set up a small arch shed and cover it with a sunshade net.

Third, how to manage broccoli at seedling stage?

1. Seedling replenishment: how to supplement seedlings?

When broccoli grows out of seedlings, the plants should be observed frequently, and the weak and dead seedlings should be pulled out in time, and the dense seedlings or places without seedlings should be transplanted in time to ensure that the seedlings are uniform.

2. Timely watering: how to water?

After broccoli grows out of seedlings, it is necessary to maintain humidity, generally watering more at high temperatures in summer, and the rest of the time to determine the amount of water according to the growth of the plant.

3. Control the temperature well: within what range should it be controlled?

After broccoli grows seedlings, the soil temperature should be controlled at about 22 degrees, and the night temperature should be about 12 degrees. If the temperature is very low, warm measures should be taken so that the seeds can germinate.

4. Remove the sunshade net in time: when will it be removed?

When the seedlings grow together, it is necessary to remove the sunshade net in time to provide enough light, but also to avoid strong light exposure, so the summer high temperature should be properly shaded so as not to kill the seedlings.

5. Pest control: how to prevent and control?

Broccoli seedling stage, prone to the occurrence of blight, jumping beetle and other diseases and insect pests, so it is necessary to take the best prevention and control measures in advance, for those who have suffered from insect pests, they should be treated in time to reduce the occurrence of diseases and insect pests.