Points For Attention In Growing Seedlings In Glass Greenhouse

A glass greenhouse is a greenhouse with glass as the main light-transmitting covering material, which is a kind of greenhouse. It has a long service life and is suitable for a variety of regions and climates. It can be divided into a variety of different greenhouses for planting different plants. So if you want the glass greenhouse to produce a good harvest, you must do a good job when raising seedlings. Here is what you need to pay attention to when raising seedlings in the glass greenhouse:

1. Prevent excessive growth: When raising seedlings in the hot season of the glass greenhouse, vegetable seedlings are prone to overgrowth. In the morning and evening, use a watering can to cool down the temperature, divide or disperse the seedlings in time to make the nutrient area of the seedlings larger. Cucumber, tomato and other fruits and vegetables can be sprayed with Chlormequat to control the overgrowth of seedlings. Make the seedlings thick, thick green leaves, thicken the leaves, promote the differentiation of flower buds, and increase the healthy seedling rate;

2. Selected plots: summer vegetable seedlings in glass greenhouses should be selected for high terrain, good soil permeability and water retention, drainage during heavy rains, and watering during droughts. Never raise seedlings on plots where the same kind of vegetables are grown, avoid soil-borne diseases, and avoid using plots with serious underground pests to raise seedlings;

3. Insect prevention and treatment: The cultivated solanaceae vegetable seedlings often suffer from wilt, fusarium wilt, virus disease, gray mold and other diseases. Pests include aphids, whiteflies, mole crickets, etc. Seedlings can be sprayed every 7-10 days with 75% chlorothalonil 1000 times solution or 65% mancozeb 1000 times solution, and spray twice in succession. For grubs, grubs, needle worms, etc.

4. Strictly prevent high temperature: Under high temperature conditions, many glass greenhouse vegetable seeds often have different degrees of difficulty in germination. You can first soak the seeds for 8 hours, wrap them with wet gauze and put them in a cool place to accelerate germination. Treatment at a low temperature of 2℃-5℃ for 48 hours can promote germination and increase germination rate. Sprinkle some short wheat straw or straw on the nursery bed, or cover the nursery bed with sunshade nets, or set up a shade shed, covering with old film, non-woven fabric, bamboo curtain, reed curtain, etc., or nursery seedlings under tall crops.