How are shallots grown? What are the planting techniques and management methods?

It can be divided into green onions and shallots.

Green onions are planted by farmers in our place relatively few, except for vegetable farmers who grow vegetables and sell them, most people are planting shallots, shallots are divided into shallots and green onions, shallots are planted according to the season, such as the often said "July green onions, choose the type of green onions to be planted, find the seeds, choose a piece of good drainage that can get sunshine all day, dig to a depth of 30 cm, and add compost."

etc. or other organic substances.

For four-season cultivation, we should choose cold-tolerant, drought-tolerant, heat-resistant, adaptable, white and long, non-tillering varieties, such as Chinese giant onion and Zhangqiu green onion.

tall white) or local peasant varieties whip scallions. Onion varieties are not suitable for cultivation in four seasons. Digging and planting ditches:

Generally, the depth of ditching is the height of green onion white - the height of soil cultivation - 1 4 green onion white height. 1 4 The height of green onion white is the white part of the green onion above the soil to below the five prongs of the green onion leaves. Before ditching, it is necessary to first understand the general white height of the selected green onion varieties.

Sowing method The suitable density of green onion seedlings is 1.5 million plants per hectare, and the number of seedlings sown in autumn should not be less than 3 million plants, so as to prepare for freezing to death weak seedlings in winter and a small amount of seedlings. Spring sowing should have 2.25 million seedlings per hectare for interspersed seedlings and a small number of naturally dead seedlings.

Plant spacing 4 5 cm, 18000 22000 plants per mu. The white type of dwarf shallots is generally 50 70 cm with a plant spacing of 3 4 cm, with about 25,000 plants per mu. Select the type of green onion you want to plant.

Green onions or shallots are some green seedlings that appear before the shallots form. They are extremely immature green onions. Look for heart-shaped green onion seeds, such as shallots, or simply choose your preferred white, red, or yellow shallots to plant.

Green onions are an indispensable vegetable in today's life, especially in the north, where they are a common dish all year round. Green onions can be planted in all seasons, as long as the soil can be dug up. Even in the north in winter, if planted in late autumn, it will still germinate in the following spring.

The selection of varieties should be able to withstand cold and heat, have strong adaptability, and can be planted in all seasons.

The method of planting green onions is to dig a hole in the ground and then plant the green onions in the ground. The management method of green onion is to fertilize the land before planting, and then water it once every three days during the growth process of green onion, pay attention to whether there will be insect pests on green onion, and finally pay attention to the protection of green onion, these are the management methods of green onion.

First of all, when planting, we must choose the soil is more fertile and broad, and in the process of planting, we must choose farmhouse fertilizer, do not use the fertilizer bought outside, but also to prevent the occurrence of pests and diseases, but also to water the plant frequently, if there is a small insect situation, then we must spray in time to remove insects.

First of all, it is necessary to choose high-quality seeds, and we must pay attention to density when planting, and we must pay attention to ventilation and watering, and we must kill insects in time in the process of planting, and we must sterilize the land, and then we also need to fertilize and weed in time

The temperature suitable for the germination of green onions is around 13-20, and it is best to choose to plant in May and July every year. Select areas close to water resources, convenient irrigation, abundant organic content in the soil, loose and breathable soil, turn the soil over, comb, pull out weeds, and smash soil clods. Clarify the types of green onions, water the soil before planting, use seeds, cuttings, bulbs and other methods for planting, and wait for the green onions to sprout, we must do a good job in cultivation technology.

Termination time

The planting of green onions does not have high requirements for the time period, and the environmental temperature suitable for germination is about 13-20, and it is best to choose to plant in May and July every year. If it is planted according to planting, it can be carried out in autumn and spring every year.

Apply plantar fertilizer

Four seasons onions like loose, rich, without faulty soil, fertilizer as well. Do not use unprepared pigs, cattle, pig manure and discharged sewage, if used, it will bring fault to the soil, larvae, and poor growth of the main stem, which is easy to burn the roots of crops, resulting in seedlings, lack of stems, and limited yield. To apply well-known useful fertilizers, apply to the outer packaging box with a marked content of ** cheap fertilizers.

It is proposed to use 1 mu of Leili seaweed fertilizer 15-10-1550 + sodium alginate 160 + Duobao 10 or Leili 15-10-1550 + Aoli microbial organic fertilizer 160 + Aoli bacteria agent 20, mix, apply the soil surface, bury the soil, divide the box, and prepare for planting.

Plough and fertilize

The standard of green onion for planting land is not high, and it can grow normally for general soil quality, and can be planted in a location close to water resources, convenient irrigation, abundant organic chemical content in the soil, and loose soil permeability. The soil is turned over, combed, the residues and insect residues in the soil are removed, the weeds inside are pulled out, the soil clods are smashed, the soil is leveled and soft, and the ditch is opened according to the planting interval.

Scientific planting

According to the local weather environment and your own requirements, confirm the type of green onion, and water the soil before planting, so that it can maintain moisture to improve the survival rate. There are three ways to plant onions: seed planting, fiber cuttings planting, and bulb planting, and the planting method can be selected according to the actual situation.

Cultivation techniques

After the green onion sprouts, we must do a good job in cultivation technology to promote the normal growth of the green onion. Water the onions on time, keep the soil moist, and do a good job of drainage and waterlogging when there is a lot of precipitation. Fertilize the onion as it grows to fill the nutrients needed for growth.

During the period, it is also necessary to cultivate soil and weed, and do a good job in disease prevention.

It is enough to sprinkle the seeds of green onions directly in the field, and the planting method is very simple. It needs to be watered regularly, or weeded regularly, and if necessary, fertilized to promote growth.

It is possible to plant by sowing seeds. Do it at the right time, try to choose a cooler place, and often hypnosis when growing. At the same time, it should be watered frequently, pest and disease control, and some weeds should be pruned in time.

Generally, seed planting will be chosen, attention will be paid to the density of planting, and the appropriate depth will be ensured, and weeding should be done in time, as well as watering and fertilizing in time, and the way of paving film can also be chosen in the early stage.

Onions grow slowly and are easily covered with weeds, so regular weeding is required to keep the growing environment clean and tidy.

Onions prefer sunny, well-drained, and fertile soil, so when choosing a land, you should choose a place with fertile soil, ventilation, and good water drainage. At the same time, sufficient amount of organic fertilizer should be applied before planting to provide the nutrient needs of the onion.

4.Control pests and diseases.

The sowing time of green onions is generally in spring or autumn, the spring sowing time is generally from late March to mid-April, and the autumn sowing time is generally from late September to mid-October. When sowing, the green onion seeds should be evenly sprinkled on the surface of the soil, covered with a thin layer of soil, keep the soil moist, and germinate after about 1-2 weeks.

Onions are susceptible to pests and diseases during their growth, so they need to be treated with care. Common pests and diseases are onion flies, onion leaf disease, and shallot root rot, etc., and corresponding control measures should be taken in time, such as spraying pesticides.

The spacing and density of onions will affect the growth and yield of onions, so attention should be paid to proper spacing and density when planting. Generally speaking, the row spacing of green onions should be between 15-20 cm, the plant spacing should be between 8-10 cm, and the planting amount per mu should be between 1500-2000 grams.

The best time to plant onions is in spring and autumn, and you need to choose flat land for planting. Onion management methods: water and fertilizer management, keep the soil moist, can be topdressed 1-2 times during harvesting;Soil management, soil cultivation and watering can be carried out with each other, which can speed up the growth rate of green onions;Pest control can be controlled with pesticides with low toxicity and low residue.

Onions are suitable for growing in a cool environment, and the best growing temperature is about 20 degrees, so the best planting time is spring and autumn. Choose fertile, deep, flat soil for planting, and the density is generally 1.5 million plants per hectare. The temperature is low and the germination is slower during spring sowing, so it is necessary to keep the soil moisture content sufficient and the surface not compacted.

1. Water and fertilizer management

The soil before and after the emergence of green onions should be kept moist and watered several times, with only a small amount of water required each time. Watering should be controlled at the seedling stage and after transplanting, during which the soil should be loosened 1-2 times, and watered every other week in the later stage. In addition, if the harvest period is too long, it is necessary to sprinkle the rotted and puffed chicken manure on the field and top dressing 1-2 times.

2. Soil cultivation management

During the growth of green onions, soil cultivation and watering need to be carried out with each other. After watering, the soil becomes semi-dry, and it is necessary to pay attention to watering after soiling, which is conducive to improving the growth rate of green onions, and the higher and higher they are, they can speed up the harvesting process.

3. Pest control

Onions are susceptible to downy mildew, purple spot, gray mold, etc., which can be effectively controlled by agricultural control and physical control. When the occurrence of pests and diseases is more serious, it is necessary to use low-toxicity, low-residue pesticides for prevention and control, and pesticide additives such as anti-resistance liquid can be added to increase the propagation of leaves.

Spread the green onion seeds into the furrow at a distance of 5-8 cm, and cover with soil and water. 3. Field management: dig and build drainage ditches in the field in time during the rainy season.

4. Precautions: pay attention to controlling the humidity and temperature in the field, and spray chlorothalonil liquid immediately after the onion seedlings are sick.

1. Organize the plot

When planting green onions, you can choose a plot close to a water source, easy to drain and irrigate, rich in organic content, loose and breathable soil, and then plough it for 20 cm, remove weeds and crop residues in the soil, then break up the clods, and finally apply enough farm fertilizer.

2. Reasonable planting

The suitable planting time of green onions is generally in May and June every year, in the plot according to the distance of 30 cm per row of ditch, and then the seeds are sown into the ditch according to the distance of 5-8 cm plant, after sowing it is covered with fine soil, and watered enough.

3. Field management

After the onion planting is in the season of abundant rainfall, it is necessary to dig drainage ditches in the field in time, prepare for waterlogging and drainage, and carry out tillage immediately after heavy rain to avoid soil compaction, and apply 1-2 times of diluted manure water at the seedling stage.

4. Precautions

During the growth of green onions, it is easy to suffer from the threat of purple spot, onion rust and thrips, leaf miner flies and other pests and diseases.