How to plant scallions to increase yield
Today, the editor will explain how to plant scallions to increase yield and detailed methods for high-yield scallion cultivation, including green plant maintenance experience, as follows:
Thinning of scallions is generally carried out in two stages, and different thinning standards should be adopted according to the specific sowing method. The standard for broadcasting is that the first thinning is done during the seedling recovery period after浇过返青水 (watering after winter) in the second year, maintaining a distance of about 2-3 centimeters between seedlings.
The second thinning is carried out when the seedlings are about 20 centimeters tall, and the same attention should be paid to maintaining the distance between seedlings. For drill-sown seedbeds, we can adjust the spacing according to specific requirements, reducing the distance between plants to ensure sufficient nutritional area for each plant. This is the most scientific and reasonable method for local scallion cultivation.
Inter-row cultivation and weeding should be combined with thinning, removing weeds at any time. After each watering or rainfall, inter-row cultivation should be done as much as possible to retain moisture and break up the hard soil surface.
The germination form of scallion seedlings is special, belonging to arch-shaped emergence, with a large area of arching, distributing the force of arching, and due to the small size of seeds and shallow root system, poor water absorption ability, and weak soil-breaking ability, during this period, farmers should pay attention to strengthening seedling water and fertilizer management to keep the soil moist to ensure normal emergence of seedlings.
For autumn-sown scallions, if watered after sowing, attention should also be paid to watering once during seedling emergence. For those prepared with water before sowing, only moisture preservation is needed during the seedling stage, and no watering is required during the emergence period. After emergence and before overwintering, generally two more waterings are needed, and if the base fertilizer is insufficient, a quick-acting nitrogen fertilizer should be applied with watering.
For spring-sown scallions, during the seedling growth period, less watering is needed to increase soil temperature and promote root growth. For autumn-sown scallions, less watering should also be done before winter to avoid excessive growth and large seedlings.
When the temperature drops and the soil begins to freeze, water once more for frost protection. When the average daily temperature rises to about 15 degrees Celsius the following year and the seedlings turn green, start watering to promote growth and apply returning green fertilizer. Then, based on the seedling growth, thinning, inter-row cultivation, water control, and seedling setting should be carried out for 12-15 days.
After seedling setting, the seedlings enter the vigorous growth stage. At this stage, the growth rate of the seedlings gradually accelerates, and the demand for water and fertilizer increases, so the frequency and amount of watering should be increased appropriately. Generally, 2-3 waterings and fertilizations are carried out during this process.
To improve the effectiveness of fertilizers, alternating application of organic and chemical fertilizers should be carried out. During this process, a mature farm manure can be applied with water. Stop watering 10 days before transplanting to strengthen seedling exercise. Water the ridge 1-2 days before transplanting to facilitate seedling lifting.
In terms of diseases and pests, and pest control, the damage from pests is generally light during the seedling stage, and immediate control should be taken once detected; for weed control, herbicides should be sprayed. For those using closed-type herbicides, it is essential to evenly spray the herbicides on the ground 3-4 days after watering.
The above content introduces how to plant scallions to increase yield and detailed methods for high-yield scallion cultivation. If it can be helpful to you, remember to visit our website often!