Zucchini seedling raising method and time

Many friends love to eat refreshing and nutritious zucchini . In rural areas, many farmers choose to sow zucchini in spring. Although it can also grow in autumn, the mild climate in spring provides ideal conditions for the growth of zucchini. In addition, some farmers use greenhouse technology to grow zucchini, which allows them to produce throughout the year without seasonal restrictions and ensure market supply. Next, we will mainly learn the methods and time of raising zucchini seedlings.

1. Zucchini seedling raising time

Generally speaking, the sowing and seedling raising time of zucchini should be between 20-25 degrees Celsius. Spring sowing is usually carried out in early May, while autumn sowing is carried out in September. The temperature conditions during these two time periods are conducive to seed germination and plant growth. The sowing time should not be too early or too late, so as not to affect the germination rate and plant health.

2. Zucchini seedling cultivation method

1. Temperature control

Zucchini is a thermophilic vegetable . The optimum temperature for seed germination is 25-30 degrees Celsius and the minimum temperature is 12 degrees Celsius. In an environment below 20 degrees Celsius, the seed germination rate is low, and it is difficult to germinate when the temperature is below 12 degrees Celsius or above 35 degrees Celsius. The temperature required during the flowering and fruiting period is above 15 degrees Celsius, and the optimum temperature for development is 22-33 degrees Celsius. The minimum temperature for root elongation is 5 degrees Celsius, and the greenhouse should be kept above 12 degrees Celsius to ensure normal growth of the plants.

2. Lighting management

Zucchini has high light requirements, especially in greenhouses. Weak light in winter may lead to late flowering. As a short-day plant, short-day conditions during the seedling stage are beneficial to increasing the number of female flowers and reducing the position of female flower nodes, promoting the normal growth of nodes and leaves. Strong light during the fruit-setting period is beneficial to fruit setting and increases yield.

3. Water supply

Zucchini has a well-developed root system, strong water absorption capacity and is relatively drought-resistant. But during the growing period, proper water supply is very important to keep the plant healthy and promote fruit development.

4. Seed treatment

Soak the seeds in warm water at 50-60 degrees Celsius, stirring constantly to avoid high temperature damage to the seeds. When the water temperature drops to about 30 degrees Celsius, continue soaking for 5-6 hours, then place in a wet towel and germinate in an environment of 25 degrees Celsius.

5. Planting seeds

Choose fertile, well-drained soil and water after applying base fertilizer. When sowing, plant the germinated seeds with one end facing down in the soil and cover them with a thin layer of soil.

The above is an introduction to the method and time of raising zucchini seedlings. It is very important to control the temperature of zucchini seedlings. If the temperature conditions are not met, it will be difficult to achieve a high yield no matter how the seedlings are raised.