How to plant green onion seedlings method and time, green onion seedling planting method and time

2. Soil: When planting green onions, it is necessary to provide them with deep and fertile soil that is convenient for drainage and irrigation.

3. Watering: After the green onion emerges, it should be watered according to the wall condition of the soil to avoid rotten roots.

The planting time of shallots is usually in autumn, and it can be planted in autumn and winter in southern China, and soft, nutritious and well-drained and permeable soil can be used for planting; Give it some scattered light every day, and it will grow well; It is relatively cold-tolerant, and the temperature at the germination stage is controlled at 13 -20 at the best time, and the temperature above 28 degrees Celsius will reduce its growth rate; Because the root system is relatively sparse, the water requirement is not very sufficient.

Common green onion seedlings include green onion seedlings, onion seedlings, etc., so when is it appropriate to plant it? How? Generally, simple sunlight greenhouse sowing, flat furrow sowing, 3 May small shallots on the market. Let's take a closer look.

In 1 March, the seeds are sown in the simple solar greenhouse, the flat furrow is sown, and in 3 May, the small shallots are on the market.

In mid to late March, the seeds are sown in the small arch shed, the flat furrow is sown, and the small shallots are on the market in June. It can also be transplanted in early to mid-June, harvested in October and November for marketing or winter storage.

In early April, seedlings are sown in the open field, and in mid to late June, the wide furrow is densely planted and transplanted, and the open field is wintered, and the flower buds are removed in March and April of the following year, and the green onions are marketed in April and May.

7 August sowing seedlings, 9 early November transplanting, dense planting (plant spacing 3 cm), open field overwintering, the following year 3 April to remove flower buds, 5 July green onion market.

Seedlings are sown in mid to late September, the seedbed is overwintered in the open field, and the small shallots are marketed in March and April of the following year.

Seedlings are sown in mid to late September, transplanted in mid-April of the following year, and shallots are harvested in July and August, or transplanted in June, harvested and marketed in October and November.

In late August and early September, the seeds are sown in the solar greenhouse, the shed is buckled in mid-October, and the small shallots are marketed in December and February of the following year.

Cultivating onion seedlings: 1. Seeds: new seeds with good selection and black and shiny grains. Sowing 2 kg per mu should be planted 4 mu.

2. Fungal agent: Gymboree root seedlings can significantly promote the rooting of onion seedlings and enhance the absorption and fixation ability of roots. It is mainly used in the seedling stage of onion and garlic and other crops, mixed in nutrient soil or used in planting, transplanting, bedding watering, dipping roots, and foliar spraying in the middle and late stages of growth, which can improve ground temperature, germinate early, and promote weak seedlings to become strong seedlings.

When planting and transplanting, slow seedlings take root quickly, enter the harvest period in advance, and can prevent growth, prolong the harvest period, and resist disease and stress.

3. Sowing: Seedlings are raised in sunny plots. In the past, legumes, nightshades, and melons were the most desirable plots of vegetables.

Apply 5000 kg of rotting circle fertilizer per mu, and make it into a flat furrow of 80 90 cm, with an interval of 30 cm between furrows, so as to compaction the soil after mulching. In early March, the ground temperature reaches 2-3 o'clock. Soak seeds before sowing to promote germination.

The furrow is sprinkled with water and then sprinkled with seeds, and after sowing, it is covered with a mulch film 90 100 cm wide.

4. Management: About 10 days after sowing, the seedlings begin to be unearthed, the membrane is stretched, and the two sides are supported by bamboo pieces or locust strips 10 cm high, and the surrounding area is compacted with soil. When the seedling height is 6 9 cm, the seedlings are thinned according to 3 cm square, and 1000 1500 kg of human feces and urine are applied with the water per mu, and the film is gradually removed for open field management.

When the seedling height is 12 15 cm and 15 days before planting, chase 1 time of chemical fertilizer, and apply 10 12 kg of ammonium sulfate per mu each time. Pull weeds in a timely manner.

5. Pest control: spray with 1:1:200 equivalent Bordeaux solution or 655 zinc and 75 chlorothalonil 600 times liquid at the seedling stage to prevent and control purple spot disease; Use the vegetable leaf leaching solution with 90 trichlorfon 400 times the solution, and put it into the field at night to trap the ground tiger.

Green onions should be planted after the seedlings are completed, and the correct method of planting onions should go through 5 processes of seedling, grading, leaf cutting, pesticide treatment and planting according to the time process, and each step is described in detail below.

The first step is seedling.

When the seedlings are raised, the seedlings should be raised according to the moisture of the seedbed, if the seedbed is too dry and not conducive to the seedlings, it is necessary to water a little water 1 2 days before planting, and wait until the humidity is suitable to raise the seedlings. When raising seedlings, hold the rhizome of the green onion with your hand, and then gently raise the seedlings with a fork or shovel. In the process of seedlings, it is necessary to use appropriate force, so as not to hurt the roots and break the roots, shake off the soil at the roots after the seedlings, and then remove the dead branches and leaves, remove the plants that do not meet the requirements, and finally put them in order.

The second step is to grade the green onion seedlings.

The onion seedlings of the seedbed generally have the phenomenon of different sizes, according to the size of the seedlings for grading, generally can be divided into a level and two grades, if the seedlings are sufficient, you can choose to transplant with a seedling, if the seedlings are not sufficient, you can transplant according to the size respectively, which is conducive to the later field management.

If the seedlings are far away from the transplanting site, they should be properly shaded during transportation to avoid strong light exposure to the seedlings. Seedlings that are not planted late on the same day should be stored in a cool place with their roots facing down, and should not be stacked, so as to avoid rotting seedlings due to heat emitted by breathing at night.

The third step is to cut the leaves and colonize.

Cutting the leaves before planting can reduce the transpiration of green onion leaves, speed up the slow seedling, and thus improve the yield. The specific method of cutting leaves is: tie the roots of the green onion seedlings after alignment, and then cut off the upper leaves, leaving only the false stem and about 10 cm of green onion leaves, and the leaves should be planted immediately after cutting.

Step 4: Pharmaceutical treatment.

With 200 grams of potassium dihydrogen phosphate + 200 grams of Lesben emulsifiable concentrate mixed with 20 liters of water, planting while dipping the roots during planting, you can prevent the harm of underground pests such as onion flies.

1. Land selection and land preparation

Onions do not have high requirements for soil, and can be planted with good drainage and sufficient fertility, so try to choose sandy soil with sufficient fertility when selecting land. After selecting the land, it is necessary to turn the soil deeply, and apply 4000-5000 kg of decomposed organic fertilizer, 50 kg of phosphate fertilizer, 50 kg of superphosphate per mu, and finally make furrows at a distance of 90cm wide and 7cm high, and finally cover the mulch.

2. Seed selection

There are many types of green onions, and the varieties suitable for planting in each place are different, so when selecting seeds, you can choose Yuyuan Red Star and Nine Tons Red Planting.

3. Sowing seedlings

The selected seeds are evenly sown, covered with fine soil about 1cm after sowing, and sprinkled with phosphine granules, with 4 catties of seeds per mu of seedbed.

4. Colonization

When the seedlings grow 3-4 true leaves, plant them in the soil at a distance of 22*17cm between the rows, and finally cover the soil and water them. Generally, 10,000 plants are planted per mu, and the planting depth is 1cm to bury small bulbs.

5. Planting time

In mid-September, no earlier than September 1 at the earliest, and no later than October 15 at the latest.

Precautions

If the seeds are sown in autumn, then after the beginning of spring, the field should be cleaned up, debris and weeds should be removed, and the green water should be poured back in early March, and at the same time, fertilizer should be applied according to the amount of 22 catties of urea per mu.

When the green onion seedlings grow to a height of 30 cm, it is necessary to carry out two interspersing seedlings, control the seedling distance at about 4 cm, and when the green onion seedlings grow to 50 cm, it is the most vigorous period of its growth, and the fertilizer and water must pay attention to keep up.