Broccoli Seed Planting Methods and Key Points for Seedling Stage Management
Broccoli is a green leafy vegetable that looks very similar to cauliflower. It is deeply loved by people because of its low calorie content and high nutritional value. It is currently grown in many regions, so how do you plant broccoli seeds? How do you manage the seedling stage?
I. Introduction to Broccoli:
1. What varieties of broccoli are there?
Youxiu, Weilai, Shanshui, Lüdazi, Shenglü.
2. In which season is broccoli a vegetable?
Broccoli is generally available all year round, but its seasonal time is in spring, so broccoli grown at other times is mostly cultivated in greenhouses or polytunnels.
II. How do you plant broccoli seeds?
1. Seed selection: What kind of seeds are good to choose?
Simply choose seeds with a glossy, plump appearance and no external damage or disease.
2. Seed soaking: How long should they be soaked?
After the seeds are selected, put them in 22°C warm water and soak them for 15 minutes, stirring continuously until the water temperature drops to 20°C, then stop. Finally, soak them in warm water for another 4 hours, remove them, and wash them clean.
3. Seed germination: How do you germinate them?
Wrap the soaked seeds in damp gauze, then place them at a temperature of 20°C. During development, rinse them once a day with clean water.
4. Seedbed selection: What kind of seedbed is suitable for planting?
Broccoli seeds are suitable for growing in an environment with loose, fertile soil, rich humus, and good drainage and irrigation, so it is best to choose a seedbed rich in humus for planting. After choosing the seedbed, deep plow the soil half a month before sowing, then one week in advance spread 15 kg of ternary compound fertilizer, 5 kg of superphosphate fertilizer, and 2500 kg of decomposed human manure per mu of land, and finally level it for sowing.
5. Sowing: How do you sow?
(1) Sowing time: Generally sow in March or early July. If using a solar greenhouse, generally sow from late July to August or from early September to early October. If growing in a plastic polytunnel or small arched tunnel, generally sow in November or January.
(2) Sowing method: Before sowing, water the seedbed lightly, then scatter phoxim pesticide, and finally spread the seeds evenly over the seedbed, scatter a layer of carbendazim or dexon pesticide, and cover with a shade net. Finally, set up a small arched tunnel and cover it with another layer of shade net.
III. How do you manage the broccoli seedling stage?
1. Thinning and replanting: How do you thin and replant?
After broccoli sprouts seedlings, observe the plants frequently. Weak seedlings and dead seedlings should be removed promptly, and places with dense seedlings or no seedlings should be replanted promptly to ensure uniform seedlings.
2. Timely watering: How do you water?
After broccoli sprouts seedlings, maintain moisture. Generally, water more during high summer temperatures, and at other times determine the amount of watering according to the plant growth condition.
3. Control the temperature well: What range is best to keep it within?
After broccoli sprouts seedlings, control the soil temperature at around 22°C and the nighttime temperature at around 12°C. If the temperature is very low, take good measures to keep warm, and then the seeds will be able to germinate.
4. Remove the shade net in time: When is the best time to remove it?
After the seedlings grow in fully, remove the shade net in time to provide sufficient light, but also avoid strong sunlight exposure, so appropriately provide shade during high summer temperatures to prevent the seedlings from being scorched to death.
5. Pest and disease control: How do you control them?
During the broccoli seedling stage, diseases and pests such as damping-off and flea beetles are prone to occur, so it is best to take preventive measures in advance. For those that have already developed pests or diseases, apply the appropriate pesticide promptly to reduce the occurrence of pests and diseases.