Method of Soilless Cultivation of Yellow Onion
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Method of Soilless Cultivation of Yellow Onion
For soilless cultivation of yellow onion, it is necessary to first cultivate the rootstocks in the open field, generally selecting 2-year-old strong rootstocks, and only harvesting 1-2 batches of green onions in the open field; when green onions are not harvested, apply a heavy application of decomposed human manure once and add a small amount of urea as a base fertilizer to fertilize the rootstocks. Then, plant the rootstocks in the cultivation boxes, water them after planting, immediately shield from light, keep the temperature at about 20°C during the day and 15°C at night, water every 2-5 days to keep the matrix moist, and wait for the rootstocks to sprout.
Yield of Soilless Cultivation of Yellow Onion
Soilless cultivation of yellow onion can save space, reduce diseases and pests, and improve production efficiency. One planting of yellow onion can yield five crops, and planting several mu can yield a thousand jin per mu. If calculated at 10 yuan per jin, earning several hundred thousand yuan a year is an easy task.
Technique of Soilless Cultivation of Yellow Onion
The growing medium for soilless cultivation of yellow onion is a mixture of sand, commercial seedling medium, and organic fertilizer from Si芒yuan in a ratio of 3:3:1/6 by weight. The nutrient solution for soilless cultivation of yellow onion includes naphthaleneacetic acid, indole acetic acid, and gibberellic acid, with a ratio of 0.01:0.01-1:0.01-10, and the formulation is a wettable powder, water-dispersible granule, suspension, emulsion, microcapsule suspension, suspension seed coating, liquid, and emulsion. The process of soilless cultivation of yellow onion includes:1. Cultivating rootstocks: Cultivate rootstocks in the open field, generally selecting 2-year-old strong rootstocks, and only harvesting 1-2 batches of green onions in the open field; when green onions are not harvested, apply a heavy application of decomposed human manure once and add a small amount of urea as a base fertilizer to fertilize the rootstocks.2. Planting rootstocks: Plant the rootstocks in the cultivation boxes, water them after planting, immediately shield from light, keep the temperature at about 20°C during the day and 15°C at night, water every 2-5 days to keep the matrix moist, and wait for the rootstocks to sprout.3. Seedling management: After the rootstocks sprout, water with a nutrient solution every 10-15 days, the nutrient solution is a 0.2-0.3% multi-element compound fertilizer solution or 0.3% urea solution, and it can be harvested and sold in 20-30 days.4. Disease and pest control: Diseases of yellow onion include gray mold, blight, and yellow wilt, and pests include onion maggots, leaf miners, and thrips, which can be controlled with corresponding control agents.Key points of soilless cultivation technique of yellow onion:1. Cultivation site: The site for soilless cultivation of yellow onion is generally in sunlight greenhouses, plastic greenhouses, large warehouses, etc., and must be carried out in a light-free environment; if it is a sunlight greenhouse or plastic greenhouse, the outer layer must be covered with a light-proof covering material, and if it is a large warehouse, the doors and windows of the house must be shielded with light-proof curtains.2. Cultivation facilities: Cultivation shelves: Made of angle steel, 1.5-2 meters high, 50-60 centimeters wide, 1-1.5 meters long, divided into 4-5 layers, each layer 40-50 centimeters high, placed in rows after welding, with a walkway between the shelves, and 4-5 layers of cultivation boxes placed on the shelves. Cultivation boxes: Made of plastic, open-top boxes, 20-25 centimeters high, 40 centimeters wide, 50-60 centimeters long, with holes in the bottom for drainage, and filled with 10-15 centimeters of light substrates such as peat, vermiculite, or perlite. Others: If annual production is required, heating facilities such as warm air furnaces, radiators, and electric heaters should be set up in winter, and强制降温 devices should be installed in summer, as well as automatic sprinkler facilities to supply water according to the growth needs.Precautions for Soilless Cultivation of Yellow Onion
1. Rootstocks: Cultivate rootstocks in the open field, generally selecting 2-year-old strong rootstocks, and only harvesting 1-2 batches of green onions in the open field to accumulate more nutrients in the rootstocks, which is beneficial for increasing the yield of yellow onion.2. Planting: Plant yellow onion rootstocks in cultivation boxes filled with substrates. Water after planting and place the cultivation boxes on the shelves.3. Harvesting: After planting the rootstocks, they can be harvested and sold in 20-30 days. Yellow onion is generally harvested by cutting.Declaration: This article "Method of Soilless Cultivation of Yellow Onion" is compiled by flower friends. If there is any improper content, you can contact us for modification. If this content unintentionally infringes your rights, contact QQ: 58589584 to delete immediately.
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