What are the latest overwintering techniques for greenhouse eggplant?

Eggplant is a relatively popular vegetable on the market, and in winter, to meet market demand, cultivation uses greenhouse planting; greenhouse-grown eggplant has fewer pests and diseases and higher quality. However, overwintering eggplant requires taking some measures, so how should eggplant be overwintered? Let's find out together.

1. Variety selection

For greenhouse-grown eggplant, seed quality must be chosen; be sure to select varieties with plump grains, strong disease resistance and low-temperature tolerance, so as to ensure better germination and seed sunning in the greenhouse. Before sowing, soak the seeds in carbendazim; after the seeds germinate and break through their shells, sow them on prepared soil, and sow evenly. Cover with fine soil, then water once; when the seedlings grow 4 leaves, they can be transplanted. When transplanting, carry soil with them to help survival. Generally, transplant about 2000 plants per mu, which can maintain excellent air permeability. In addition, appropriately increasing ventilation can make the seedling stems grow thick and strong, and the fruit-setting rate is also relatively high.

2. Temperature control and seedling hardening

After transplanting, the most important thing is temperature control and seedling hardening. If the greenhouse temperature is relatively high at noon, then cool it by ventilation and keep the temperature at around 28 degrees, which is suitable for eggplant growth. The nighttime temperature must not be lower than 10 degrees, otherwise it will cause frost damage to the eggplant seedlings. When the seedlings grow to 5 leaves, strengthen fertilizer and water management. Dig small pits about 10 cm from the roots to apply fertilizer, cover them, then water and irrigate. This can promote the roots to absorb the fertilizer as quickly as possible and improve fertilizer use efficiency.

3. Pinching off branches

Eggplant needs pinching off branches during growth. Remove the branches and leaves of some side shoots, leaving the main stem, so that it can bloom and bear fruit layer by layer. During management, promptly thin out flowers and small fruits. Generally, leave 3-4 flowers on each layer, so that 3-4 eggplants can set fruit. Do not leave too many fruits, otherwise eggplant growth will be poor.

4. Heat preservation

Entering November means entering the cold winter. At this time, promptly cover the greenhouse with straw mats for heat preservation. Every day from 5 pm, cover with straw mats, overlapping them layer by layer, so as to reduce the extent of exposed plastic foam and provide excellent heat preservation. Wait until 9 am the next day to uncover the straw mats. This can keep the temperature balanced and make eggplant growth more vigorous.

  The above is an introduction to how greenhouse eggplant overwinters. I hope it can help you. To learn more related knowledge, please stay tuned to us.