Prepare 4-6 layers of cultivation racks for three-dimensional cultivation, and use a vegetable seedling tray for seedling cultivation, the specification is 60 cm× 24 cm, and the cultivation substrate is cotton cloth, non-woven fabric, perlite, foam plastic sheets, etc., which is clean, non-toxic and has strong water absorption. Seeds with uniform and full grains and high germination rate are selected for planting, and the seeds are evenly spread in the seedling tray to accelerate germination for 2-3 days. When the sprout grows to 3 cm long, move it into the cultivation room, strengthen management, and harvest it when the sprout grows to 10 cm.

1. Planting techniques of sprouts in greenhouse

1, three-dimensional cultivation requires 4-6 layers of cultivation racks, the first layer is not less than 10 cm from the ground, the spacing between layers is 50 cm, and every two are placed in a row side by side, and the spacing between rows is 50-80 cm. Seedling tray with vegetables, the specification is 60 cm? 24 centimeters. The cultivation substrate is made of clean, non-toxic, water-absorbent materials, and the residue after use is easy to handle, such as paper, white cotton cloth, non-woven fabrics, perlite, foam plastic sheets, etc.

2. Disinfect the shed to reduce humidity. Use 500 grams of 22% dichlorvos and 250 grams of 45% chlorothalonil smoke agent per mu, and fumigate after dark fire. You can also sprinkle quicklime in the shed for disinfection before cultivation.

3. Select seeds with uniform and full seeds, thick seed coat, high germination rate and no damage for planting, and soak the seeds in warm water at 55-60℃ for 15 minutes after sun-drying. Spread newsprint in the seedling tray, and then spread the seeds evenly without accumulation. After sowing, spray 1 time with water, cover with plastic film to keep moisture, put it on the shelf of germination room, turn the seeds 1 time every day, water 1 time, and change the position of seedling tray. When most of the seeds are exposed, use sterilized tweezers to remove the seeds with dead buds, rotten buds, damaged buds and dead grains. Accelerating germination for 2-3 days at the appropriate temperature of 18-22℃. When the sprouts grow to 3 cm long, move them into the cultivation room.

4. Sprinkle water 2-3 times a day in the early growth stage and 3-4 times a day in the middle and late growth stage. The optimum growth temperature is about 20℃. Under dark conditions, seedlings grow rapidly and are not easy to standardize. Keep the scattered light in the cultivation room before harvesting, and pay attention to shading in summer. When the sprout is 4-5 cm long, remove the covering to make it green in the light.

5. When the sprout grows to about 10 cm, the top leaves are unfolded, and the stem tip is 8- 10 cm without fibrosis, harvest it.

2. What are the basic tools for planting sprouts in greenhouses?

1, cultivation frame, cultivation container and cultivation substrate are the basic tools for planting sprouts in greenhouse.

2. The cultivation frame can be welded or bound with angle iron, bamboo poles and wooden sticks. The frame is about 2m high, 50-60cm wide and1-2m long. Generally, it is divided into 6 layers, each layer is 25-30 cm high. When conditions permit, wheels should be installed on the cultivation frame to facilitate transportation. The cultivation rack is installed in the cultivation room, and the cultivation tray is placed on it.

3. The cultivation container is the place where sprouts grow and develop. Generally, a vegetable plastic seedling tray is used, and the specifications are 62 cm in outer diameter, 23.6 cm in width and 3.8 cm in height; Or use a plastic tray with a length of 60 cm, a width of 25 cm and a height of 5 cm. Can also be made of wood, aluminum, iron and other such a large plate instead.

4. Cultivation substrates generally include white cotton cloth, non-woven fabrics, foamed plastics, perlite, river sand, waste paper, etc., as long as they are clean, non-toxic, light in weight and strong in water absorption and retention.