How many degrees below zero can eggplant seedlings withstand? A detailed explanation of cold tolerance temperatures

Eggplant seedlings are plants that love high temperatures and cannot survive at several degrees below zero. Generally, the suitable temperature for seed germination is 25-30 degrees, and during the seedling development period it is 25-30 during the day and 15-20 degrees at night. If it is below 15 degrees, eggplant seedlings grow slowly, and below 0 degrees they basically cannot survive. When planting eggplant, the following management should be done well:

Planting management of eggplant seedlings:

1. Sowing and raising seedlings

For eggplant planted in early spring, the sowing period is generally in December, field planting in late February of the following year, and harvesting begins at the end of April. For autumn planting, sow and raise seedlings in May, field plant in June, and harvest in August-September. After sowing, ensure the growing temperature. When the first true leaf grows, the suitable temperature can be appropriately increased, and once seedling raising is complete, they can be transplanted.

2. Transplanting and field planting

Before transplanting eggplant seedlings, be sure to water the base thoroughly, then according to the growth of the seedlings, appropriately add water to meet growth requirements. Set the seedlings into the previously prepared plot, with a spacing of 30-40 cm, and the planting depth should be equal to that of the nursery and the soil surface.

3. Field management

During the seedling recovery period of eggplant, attention should be paid to regulating the balance between vegetative growth and reproductive growth, and controlling light and temperature well. After watering for seedling recovery when planting eggplant, do not water again until the flowering period. Wait until the eggplant generally grows to 3 cm in size, then water and fertilize; the first fertilization amount can be larger. When the eggplant begins to swell, give the second fertilizer and water; after 10-15 days, apply fertilizer and water once. In the middle and late fruiting stages, water and fertilizer must not be lacking. Also prune in time to improve ventilation and light conditions. After the first eggplant swells, remove the side branches sprouting below the first eggplant and the lower old leaves, and the axillary buds below the second fruit (the eggplant) should also be removed.

Common pests and diseases during eggplant cultivation include damping-off disease, brown spot disease, fusarium wilt, aphids, mites, thrips, etc. Growers should take preventive measures in advance. For plants that have already developed diseases, spray pesticides promptly or remove and destroy them promptly, so as to avoid large-scale disease infection.