How to grow shallots? When are shallots planted? How to plant

First of all, the seedling is raised, and the suitable time for seedling raising is from July 20 to August 20. The seedbed is selected from a fertile sandy soil that is high and dry, not easy to accumulate water, and the land is prepared to make furrows, with a width of meters and an unlimited length. 50 kg of high-quality compound fertilizer is applied to the seedbed per mu, and after fine raking, watering and moisture.

After the water seeps down, the seeds are mixed with soil and evenly sprinkled on the field, and then mixed with 5 phosphine granules mixed with fine soil and then covered with 2 to 3 cm fine, and the grass can be covered with sunscreen and rainproof if possible. Each 667 square meters of shallots needs 500 grams of seeds and 150 square meters of seedbeds.

Secondly, planting, from October 10 to November 10, after the harvest of the previous crops, timely land preparation and fertilization. Generally, 3000 kg of high-quality organic fertilizer, 50 kg of ternary compound fertilizer, 25 to 30 kg of urea, and 25 to 30 kg of potassium fertilizer are applied with the bottom of the plough every 667 square meters. After leveling, the furrow is in an east-west direction, the furrow is 30 cm wide and 25 cm high, and the flat film is laid.

When planting, after pulling out the green onion seedlings, dry them slightly, insert the seedlings under the film with bamboo sticks, the row spacing is 18 cm, the plant spacing is 8 to 12 cm, and the mu is planted about 10,000 plants, and then straightened, and the seedling water is slowly watered.

Finally, winter and spring management, after winter, before the arrival of the cold snap, pour the frozen water. After the great cold, the beginning of spring is coming, and the temperature in the north is gradually rising, so it is necessary to water and fertilize in time. If the temperature is low in the early stage, you can water a small amount of water according to the moisture to prevent flooding.

After the sting, the earth is all thawed, combined with watering, 30 kg of urea or 5 kg of Bika water-soluble fertilizer per mu is applied. In order to harvest in advance, farmers with conditions can build a small arch shed before the beginning of spring, so that the temperature is about 20, and if it exceeds 30, it is necessary to ventilate in the morning in time. After the temperature warms, the growth rate of green onion seedlings accelerates, and it is easy to sprout buds at this time, and the flower buds are removed in time after the buds, so that the green onions are transformed from reproductive growth to vegetative growth, so as not to reduce the quality of green onions.

Sow. Natural sowing: Naturally, after the seeds have fallen in autumn, they will produce radicles in the second year and seedlings in the spring of the third year.

The seeds of the onion have comprehensive dormant properties. It takes 1-2 months (about early to mid-July) from sowing to radicle growth in field conditions, and this process does not require low temperatures; After radicle emerges, radicle and epicotyl grow, radicle can grow lateral roots, and the taproot can be up to 6-8 cm long before winter; The epicotyl is thickened and elongated, and the length can reach 2 cm before winter. After that, it winters under the soil.

2] Artificial sowing: the seedling land is suitable for flat land, furrowing. Good drainage, irrigation and shade conditions are required.

It is advisable to sow seeds in spring or summer. In Jilin Province, China, sowing seeds are in late April, early May or early to mid-July. Spring sowing seeds do not need to be treated, and can be sown directly, sown or sown in strips.

Spread seeds 3 cm apart, sowing 26-30 g **; The spacing of the strip sowing furrow is 10 cm, the seed spacing is 2 cm, and the sowing amount is 13 grams square meters. [2]

Branches. The tillering habit of the plant can be used for branch propagation. The propagation time of ramets can be carried out after leaf wilting in autumn or before germination in early spring, and it is best to transplant when the leaves are wilted in autumn (from the second end of September to the beginning of October in Jilin Province).

Because the plant germinates early in spring, the root system has time to resume growth after transplanting in autumn, which has little effect on the growth of the second year. Single-stem planting: tillering is no longer done in the year after planting, and tillering is carried out from the 2nd to 3rd year.

1. Spring sowing time is generally carried out from March to April every year.

2. The autumn planting time is between September and October every year.

3. Select plots with good drainage and fertile soil for seedling raising.

4. Before seedling planting, the soil should be ploughed and sufficient fertilizer should be applied to ensure that the soil is loose and the drainage is good. Keep the soil moist.

5. Fertilization per mu is based on soil fertility, and the use of late-rotted organic fertilizer is about 15 kg of compound fertilizer.

6. The management should pay attention to check whether there is a lack of seedlings or dead seedlings, replenish the seedlings in time, reduce the weeds in the field, and stop watering about 20 days before harvest.

7. Fertilization can be fertilized a total of 4 to 5 times in the growth stage, and attention should be paid to pest control. Yard Bridge Xiang.