Onion Cultivation Without Soil
Comprehensive introduction to the method of cultivating green onions without soil, related to ornamental plants and flowers, with the specific details as follows:
Onion Cultivation Without Soil
To cultivate green onions without soil, you need to prepare onion stems about 6 centimeters long, preferably with some roots. Then, find a transparent glass bottle for cultivation. Fill half of the glass bottle with water, and let one-third of the onion segment touch the water. Place the bottle in a place with diffused light, and change the water once a day to keep the growing environment clean and tidy.
Yield of Onion Cultivation Without Soil
Cultivating green onions without soil is good, and hydroponic cultivation grows faster than soil cultivation. When the green onion plant is 30-40 cm tall and the stem is 0.3-0.5 cm in diameter, it can be harvested. In an area of 540 square meters, it can produce about 500 kilograms, and the yield can reach 800 kilograms at most. Hydroponically cultivated green onions have fewer yellow leaves, sufficient water content, and good quality. If using a greenhouse for continuous cultivation of green onions throughout the year, it can be harvested 2-3 times in spring and 2-3 times in autumn, with an annual yield of 4-5 times in an area of 540 square meters, reaching 2000-2500 kilograms, and a value of 6000-7000 yuan.Techniques for Onion Cultivation Without Soil
Onion cultivation without soil uses a trough-shaped cultivation bed made of plastic film. The gradient is 1/80-1/100, exposing the upper part of the roots, and maintaining a shallow nutrient solution that flows slowly and continuously. The nutrient solution formula for onion cultivation without soil: Calcium nitrate 950, Potassium nitrate 808, Ammonium dihydrogen phosphate 152, Magnesium sulfate 492, Chelated iron 21, Manganese sulfate 1.8, Boric acid 2.8, Copper sulfate 0.078, Sodium molybdate 0.021, Zinc sulfate 0.215, in grams per 1000 liters. The process of cultivating green onions without soil: 1. Prepare the onion segments for hydroponic cultivation. Prepare onion stems about 6 cm long, preferably with some roots, and find a transparent glass bottle for cultivation. 2. Fill half of the glass bottle with water, and let one-third of the onion segment touch the water. Place the bottle in a place with diffused light, and change the water once a day. This ensures a clean and tidy growing environment for the plant. If you have phosphorus fertilizer for flowers at home, you can also add a little diluted water, and the green onions will grow faster with the addition of fertilizer. 3. When the green onions grow for a week, you can see the changes in the green onions. When the leaves grow to 15 cm, you can cut off half of them, which allows the green onions to grow better. Key points of onion cultivation without soil: 1. Soil sowing: The seedling variety is Shengxian scallion, which has underdeveloped roots, small leaf area, and slower growth. Therefore, the seedling age is longer. Soil sowing is beneficial for cultivating strong seedlings. The suitable sowing period is from early March to late April in spring and from early July to late October in autumn. 2. Soilless transplanting management: Use hydroponic cultivation for green onions. The transplanting period is from early April to late May in spring and from late August to early December in autumn. The best growing period for green onions is from April to May in spring and from mid-September to early November in autumn. 3. Transplanting method: When the onion seedlings have 2-3 leaves, a height of 10-12 cm, and a seedling age of 35-45 days, they can be transplanted. One day before transplanting, water the seedling bed sufficiently. After removing the seedlings, wash off the soil from the roots and minimize root damage. Hydroponic cultivation uses deep flow technology. The cultivation trough is 28-30 meters long, 1 meter wide, and about 10 cm deep. The trough bottom is lined with polystyrene material board, 1.25 cm thick, covered with black film to prevent nutrient solution leakage. The nutrient solution depth is about 6-8 cm, and the EPS cover board is placed on top, 1.5 meters long, 1 meter wide, and 2.5 cm thick. 4. Nutrient solution management: Use deep flow cultivation for green onions. In a greenhouse of 540 square meters, set up a 0.4 kilowatt water pump to supply the nutrient solution, and supply the solution twice a day, once in the morning and once in the afternoon, each time for 1-2 hours. 1-2 days after transplanting, use clear water (G-Y) without adding fertilizer.Precautions for Onion Cultivation Without Soil
1. Bottle treatment: If you want to use a beverage bottle to cultivate scallions, choose a bottle with a larger diameter and a certain depth as the container. Then, use a sharp pair of scissors to cut the bottle from the middle or one-third of the top. Note that the bottle needs to be cleaned before use to prevent the plant from being infected with bacteria during hydroponic cultivation. 2. Hydroponic method: Prepare a scallion segment with roots at the base. Add an appropriate amount of water to the beverage bottle and place the scallion segment with roots downward. Note that the water level should not be too high, just enough to cover the roots, otherwise the scallions may rot easily. 3. Regular water change: During the process of hydroponic cultivation of scallions, it is necessary to change the water regularly. It is best to change the water every 2 days to prevent water pollution. When changing the water, add a few drops of nutrient solution to meet the growth needs of scallions. Only with sufficient nutrients can scallions grow quickly. 4. Precautions: Pay attention to cleaning the roots of scallions before hydroponic cultivation. During the hydroponic process, place the scallions in a ventilated semi-shaded environment to avoid exposure to strong sunlight. It is also necessary to control the temperature to avoid growth in too cold or too hot environments, otherwise the scallions will grow poorly.Declaration: The article "Onion Cultivation Without Soil" is compiled by flower enthusiasts. If there are any inappropriate content, please contact us for modification. If this content unintentionally infringes on your rights, please contact QQ: 58589584 for immediate deletion.
Knowledge expansion
Where do green onion seeds come from?
There are many varieties of green onions, some of which produce seeds easily, while others do not. After the green onions mature, they can continue to be planted. They will grow oval grape-like structures on top, which contain many small particles. After a while, these small particles turn black, which are the seeds of green onions. They can be spread by insects and wind.
Where do green onion seeds come from?
There are many varieties of green onions, some of which produce seeds easily, while others do not, and can only be propagated asexually.
What do green onion seeds look like?
After green onions mature, they can continue to be planted. They will grow oval grape-like structures on top, which contain many small particles. After a while, these small particles turn black, which are the seeds of green onions.
How are green onion seeds spread?
Green onion seeds are spread by insects and wind. In the following spring, they will first grow leaves, then flower buds, and then seeds will be produced after pollination.
How to save green onion seeds?
Green onion seeds are very difficult to preserve. They can be stored for up to one year under refrigeration conditions. After a long time, the germination rate will significantly decrease until no seeds germinate. Therefore, green onion seeds need to be collected reasonably and used in a timely manner.
Green onion seed planting
1. Sowing time
Green onion seeds are suitable for sowing in spring and autumn. The specific time is from March to April in spring and from September to October in autumn. The suitable germination temperature is 13-20 degrees Celsius.
2. Seedling raising
If sowing in autumn, dry seeds can be used. Before sowing, soak the seeds for disinfection to improve the germination rate, ensure uniform seedling growth, and reduce the occurrence of pests and diseases.
During spring sowing, due to the dry soil, wet sowing can be performed to promote early seedling emergence. Soak the seeds in warm water, rub them to remove the chaff, and soak them for 12-24 hours. Then, place them in an environment with a temperature of 15-20 degrees Celsius for germination for 2-3 days. Sow after most of the seeds have sprouted.
3. Watering
Water the green onions 2-3 days before transplanting. Since green onion seeds are small and have weak soil-breaking ability, it is necessary to keep the soil slightly moist to ensure normal seedling emergence.
4. Planting scallions in pots
If planting scallions in pots, water the scallions about 2.5 cm deep once a week during the growing season. In about 20-30 days, the scallions will grow to 15-20 cm, and they can be eaten at this time.
What kind of fertilizer is best for planting scallions?
Fully decomposed farmyard manure or organic fertilizer can be used to plant scallions. On the basis of applying organic fertilizer, potassium fertilizer should be increased. Each season, each mu of scallions should be applied with more than 25 kilograms of potassium fertilizer. Potassium fertilizer has mobility, and the dosage per mu each time should be below 10 kilograms. To promote the normal growth of scallions, foliar application of trace element foliar fertilizer should be performed. Pay attention to applying thin fertilizer frequently and do not use raw fertilizer.
Key points of applying fertilizer for planting scallions
Scallions have a short growth period, less susceptible to pests and diseases, and are easy to cultivate. It is best not to apply farmyard manure to small scallions. Some chemical fertilizers should be applied, preferably nitrogen and potassium fertilizers. After fertilizing, watering should be performed to reduce the application of phosphorus fertilizer, which can control the occurrence of pests and diseases.
What kind of fertilizer is good for planting scallions?
Fully decomposed farmyard manure or organic fertilizer can be used to plant scallions, which can meet their nutrient needs during the growth period.
What fertilizer can increase the yield of scallions?
During the planting process of scallions, more nitrogen fertilizer should be applied, but phosphorus and potassium fertilizers and trace elements should also be applied. On the basis of applying organic fertilizer, potassium fertilizer should be increased. Each season, each mu of scallions should be applied with more than 25 kilograms of potassium fertilizer. Potassium fertilizer has mobility, and the dosage per mu each time should be below 10 kilograms. To promote the normal growth of scallions, foliar application of trace element foliar fertilizer should be performed.
When to apply fertilizer for planting scallions
During the spring planting of scallions, base fertilizer can be applied. During the growth period, thin fertilizer can be applied every half month to meet their growth needs. Additionally, the best time to apply fertilizer is in the early morning or evening, avoiding the hot noon, as applying fertilizer during this time may cause fertilizer damage and affect the root growth of scallions.
How to apply fertilizer for planting scallions
Scallions require nitrogen, phosphorus, and potassium fertilizers. If only nitrogen fertilizer is used, it is not conducive to their growth. The content of nitrogen fertilizer and potassium fertilizer they need is basically the same. You can slightly increase the application of nitrogen fertilizer and potassium fertilizer, and be sure to dilute them with water, and do not use raw fertilizer.
Planting time and growth cycle of green onions
Green onions are generally transplanted in January and harvested from March to late April. This crop can be planted under a shading net or in the row space of high-stem crops, (G-Y) for the summer off-season market. Planting green onions can be profitable, but the management of green onions requires more manpower, and the cultivation cost is high. With a yield of 6000 jin per mu, excluding costs, a profit of 10,000 yuan can be made after each harvest.
Planting time of green onions
Green onions are generally transplanted in January and harvested from March to late April. This crop can be planted under a shading net or in the row space of high-stem crops, (G-Y) for the summer off-season market.
Planting cost and profit of green onions
Planting green onions can be profitable, but the management of green onions requires more manpower, and the cultivation cost is high. With a yield of 6000 jin per mu, excluding costs, a profit of 10,000 yuan can be made after each harvest.
Key points of planting technology for green onions
1. Planting: Green onions are generally planted in flat terrain with convenient irrigation and deep soil layers. Apply 2000 kilograms of fully decomposed commercial organic fertilizer and 25 kilograms of compound fertilizer per mu as base fertilizer, and mix them into the soil to a depth of 10-20 cm.
2. Watering: Water the green onions frequently to keep the soil moist. Pay attention to drainage to prevent root rot. During sunny days from May to October, water them once in the morning and once in the evening. Do not water at noon.
3. Topdressing: Apply fertilizer to green onions in small amounts and frequently. Thin fertilizer should be applied diligently. After the scallions are alive, apply 5 kilograms of urea per mu as a promoting fertilizer, and apply it every 12-15 days.
Related issues
How to plant scallions?How to plant scallions? I don't know what to do, sincerely seeking help. Solutions: 1. When and how to plant green onions, green onions prefer a cool climate, with strong cold and heat tolerance. The suitable germination temperature is 13-20 degrees Celsius. Spray 200 times of emulsion and 500 times of dimethoate emulsion to control pests and diseases, spraying once a week for 2-3 times.How to plant small scallions?How to plant small scallions? I feel upset... Solutions: 1. How to plant small scallions, the planting method of small scallions, 1. Soil, it likes loose, nutritious, well-drained and breathable soil, not suitable for planting in sandy soil. 2. Light, it prefers gentle diffused light. If the light is too strong, it needs to be shaded, otherwise it may cause yellow leaves, increased fibers, and poor taste. 3. Temperature, it prefers a relatively cool climate, with strong cold tolerance, and the suitable germination temperature is 13-20 degrees Celsius, and the suitable temperature for stem and leaf growth is 18-23 degrees Celsius, and the suitable soil temperature for root growth is 14-18 degrees Celsius. The growth rate is slow when the temperature is above 28 degrees Celsius. Due to the shallow distribution of roots, the water demand is less than that of large onions, but it is not drought-resistant...How to plant scallions on the balcony?How to plant scallions on the balcony? Please teach me, I have tried many methods but still can't solve the problem. Solutions: 1. What should be paid attention to when planting scallions and coriander on the balcony, and what are the steps? Scallions, with bright green color, due to the high volatile oil content in their bodies, will quickly release in the air after cooking and heating, adding color, aroma, and beauty to different dishes. Moreover, many people always ask vegetable vendors to bring a few scallions when buying vegetables. At the same time, for convenience, many people also plant...How to plant green onions all year round?How to plant green onions all year round? I don't know what to do, sincerely seeking help. Solutions: 1. How to plant green onion seedlings to make them easy to survive? The planting method of green onion: 1. Collecting seeds, some flowers do not need seeds, and can survive by cutting branches. 2. Scatter the green onion seeds in the ground, dig the ground loose, sprinkle the green onion seeds, cover them with a thin layer of soil, and then use a special watering can to wet the green onion seeds. 3. After about a week...How to plant green onions all year round?How to plant green onions all year round? I don't know what to do, sincerely seeking help. Solutions: 1. What is used to plant green onions? Green onions can be planted with seeds. Planting technology: 1. Requirements for the environment. Green onions prefer a cool climate, with strong cold and heat tolerance, and the suitable germination temperature is 13-20 degrees Celsius. The suitable temperature for stem and leaf growth is 18-23 degrees Celsius, and the suitable soil temperature for root growth is 14-18 degrees Celsius. The growth rate is slow when the temperature is above 28 degrees Celsius. Due to the shallow distribution of roots, the water demand is less than that of large onions, but it is not drought-resistant...How to plant green onion seeds?How to plant green onion seeds? I have tried many methods but still can't solve the problem. Solutions: 1. How to plant green onion seeds effectively? Home potted green onions are easy to succeed because they have strong vitality, both cold and heat resistant, and can be sown and cultivated throughout the year, but the most suitable sowing and cultivation time is in spring and