The green onions are divided into spring sowing green onions and autumn sowing green onions. We usually plant autumn sowing green onions. We plant green onions in about August and September. After a winter plant nutrient storage, spring is replanted in summer and planted until the harvest of green onions in August and September. This is a long time. However, the yield of green onions is very high. Now planting is the spring sowing green onions, the yield of spring sowing green onions is low, how to plant it?
.jpg "High-yield planting techniques for spring sowing")
1, variety selection
Spring sowing green onions should choose varieties that are resistant to convulsions, strong resistance, and good overall quality, such as Liaoshao No.1 cultivated by Liaoning Academy of Agricultural Sciences, No.1 of Liaoning Wind and Sand Research Institute, Donglingbai, Chinese green onions, and some Japanese Introduced varieties of green onions, such as Japanese long jade, Japanese long treasure.
2, soil preparation
Planting green onions is the most difficult to sit on, so the seedbed should choose not to grow the onion, onion, leeks and other umbrella-shaped vegetables in at least three years, requiring fertile soil and convenient irrigation. Apply 4-5 tons of manure per mu. 50 kg of calcium phosphate, 20 kg of compound fertilizer, deep-turned fine, flattened kneading surface, made into a flat 1 m wide and 2-3 m long.
3, seed treatment
Planting green onions must use the new seeds of the year, soak them in clear water for 24 hours before sowing, and then dry them to be sown.
4, sowing
The suitable temperature for germination of green onions is 15-20 °C, and the ground temperature begins to germinate at 5 °C. Therefore, spring sowing is generally selected in early March. After sowing, you can take a small arch shed or not. One day before sowing, the nursery nursery was irrigated with water, and the water was completely infiltrated and then sown. The seeds of the green onions are very small. In order to spread the seeds, they are first mixed into the fine soil, and the seeds are spread on the surface of the clams. After that, the soil is covered with 0.5-1 cm, and finally the film is kept moisturized.
5, seedling management
After about 8 days of sowing, the seedlings can be emerged. After the green onions are released, the mulch is uncovered in time. The green onions are sprouted. In order to prevent the growth of the green onions, the water should be controlled until most of the green onions are “direct hooks†and then the first water is poured. This time should have reached three. Late in the month. If the onion seedlings grow yellow, 20 kg of urea is applied to each acre of land. About 20 days later, the onion seedlings grow to about 15cm. If the onion seedlings are too dense, the appropriate seedlings should be applied. After the seedlings, the compound fertilizer should be applied for 20 kg, and then it should be applied once every 10 days. Until the beginning of May, the next month to control the water seedlings, promote root growth, prepare for planting in June.
The above is the planting technique of spring sowing green onions. If you want to sow the green onions in spring, you can start planting. The green onion leaves in spring are almost no yellow tip, the appearance is neat and beautiful, the commodity is very good, and the farmers can increase the density to increase the yield.
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