Broccoli Seedling Stage Management Methods and Technical Key Points
Broccoli is a type of flowering vegetable, widely distributed across our country and favored by many people. The planting area of broccoli is now continuously expanding with market demand. During cultivation, broccoli has different management key points at each growth stage. Among them, seedling stage management is crucial, so how should broccoli be managed during the seedling stage? Below, the editor brings you the seedling stage management methods for broccoli. Let's take a look!
1. Regular Observation
After sowing broccoli, during the period before germination, you must regularly observe its germination situation, checking about twice a day. Mainly check germination, soil moisture and light intensity, etc. Under high temperature conditions in summer, we should pay attention to controlling the temperature well and water reasonably to regulate soil temperature. Keep the soil temperature at around 26°C. To promote normal seed germination and emergence from the soil, pay attention to the timing when watering, and do not water at noon. Also pay attention to weather changes to prevent rain after watering. Finally, do a good job of shading to prevent direct sunlight from affecting seed emergence.
2. Temperature Control
Temperature is very important for the growth of broccoli seedlings. Before emergence, temperature should be controlled at around 22°C, with a day-night temperature difference of around 10°C. Then after emergence, the temperature should be appropriately lowered by 5°C. If the temperature is unsuitable, it will not only reduce the seed germination rate, but also affect the growth of the seedlings. This leads to a decline in seedling growth capacity, with seedlings growing wilted and weak. Therefore, we should appropriately adjust the temperature according to the growth condition of broccoli seedlings to prevent unsuitable temperatures from affecting the normal growth of broccoli and reducing planting benefits.
3. Timely Seedling Hardening
One week before transplanting broccoli seedlings, the seedling hardening work should be done well. To improve the adaptability of the seedlings, water appropriately after sowing to increase soil water content. Then after the seedlings emerge uniformly, uncover the rice straw and appropriately control the soil at around 75%. During seedling hardening, pay attention to ensuring appropriate light, so remove the shade net in time to provide sufficient light for seedling growth, but also pay attention to sunlight intensity to avoid direct sunlight on the seedlings, which can cause sunburn. Also do a good job in pest and disease prevention and control, to prevent serious pest and disease damage from reducing the seedling survival rate.
4. Pest and Disease Control
Pest and disease control during the broccoli seedling stage is also very important. Common pests and diseases during the broccoli seedling stage include damping-off disease, flea beetles, etc. These pests and diseases will harm various parts of broccoli to varying degrees, causing serious impacts on broccoli growth. Therefore, we must do a good job in broccoli pest and disease control. Before sowing, first carry out seed dressing to improve the disease resistance of the seeds. Then strengthen management, check frequently, and if abnormal conditions are found, take corresponding measures in time.
The above is a brief introduction to broccoli seedling stage management methods. Broccoli seedling stage management is very important, directly affecting the growth capacity and yield of broccoli. So everyone must pay close attention. That is all for today's introduction. This article is for reference only, and we hope it can be helpful to everyone!