Methods and steps for growing onions, what is the method of growing onions?

How to grow onions:

1. Planting time

Onions are often planted by sowing seeds, and the planting time is generally concentrated in early September in autumn, when the surrounding temperature is suitable, which can be conducive to the growth of onions in the later stage.

2. Prepare the seeds

In order to improve the germination rate of seeds, it is best to do a good job of germination treatment first, or you can sow seeds directly. First, the seeds are soaked in warm water, then the seeds are dried for a thousand years and then wrapped in moist gauze, placed in a warm place to germinate, the temperature is kept at about 25, and most of the seeds are exposed before sowing.

3. Prepare the land for furrowing

Choose a sunny, leeward, drainage and irrigation convenient plot, for furrow fertilization, furrow height is about meters, width of about 28 cm, the furrow seedlings are loosened, and the rotten base fertilizer is applied.

Fourth, sow seeds correctly

Water enough on the furrow, spread the seeds evenly, cover with a centimeter of thin soil, cover with plastic film after sowing, keep the temperature at about 20 degrees, maintain good humidity, and germinate after about a week. After the onion germinates and emerges, do a good job in seedling management, and time seedlings and replenish seedlings to promote the growth of onion seedlings.

5. Field management

After the onion seedlings grow steadily, field management can be done. During the growth of seedlings, there should be no shortage of water, the amount of watering should not be too much, and the soil should be kept moist to avoid the seedlings wilting, so as to promote the rapid growth of the seedlings' roots. Good prevention and control of pests and diseases, onion common diseases include rust, purple spot, downy mildew, etc.

1. Planting time

The most suitable time for planting onions is September, when the autumn is high and cool, and the weather has begun to cool in most areas. It should not be planted too early, and the germination will be slow if the temperature is too high; If you plant too late, the temperature will be too low, and it will not be conducive to the growth of onions.

2. Classification of planting methods].

Onion is a relatively easy plant to feed, which can be soiled or hydroponic. In fact, the planting effect of the two methods is almost the same, if it is planted in large quantities in the field, it is definitely more appropriate to use soil culture; If you are growing onions on a small scale at home, it is still advisable to use hydroponics, because hydroponics can observe the root growth of onions, which is also a very interesting thing.

3. Soil cultivation method].

Large-scale planting in the field generally needs to be sown, so planting is more troublesome, today I want to introduce the soil culture method, is suitable for home potting soil planting method:

1. Prepare the onion: Peel off the skin on the outside of the onion and retain the roots at the bottom, which is the part of the onion that will take root at the back, and the pot depends on it.

2. Prepare pots: The pots required by the soil culture method are generally clay pots, of course, plastic pots or foam boxes can also be used, but the bottom must be perforated for ventilation and drainage. As for how big a pot to prepare, it depends on how many onions you want to plant.

Some people like to plant an onion in a pot, and some people like to plant several onions in a large pot.

3. Making potting soil: the soil requirements are not high, and the general garden soil can also be used, and the soil mixed with coarse river sand and garden soil is more loose and breathable, and it is also the soil that will be used for planting most plants. It is recommended that you can make more than one at a time, and you can use it directly for planting in the future.

4. Place the onion: Remember not to bury the whole onion in the soil, just place it on the soil, be sure to stick the roots to the soil with the tip facing up, so that it is basically OK. Generally, after a few days, the onion will take root, which is what we often call serving pots, and you don't need to worry too much about it later, and you have to keep up with watering and fertilization, so there is no big problem.

Fourth, hydroponics].

The steps of hydroponics are similar to those of soil ponics, and the operation is simpler, but there are still some different points to note:

2. Place onions: The requirements of onions are the same as those of soil culture, and they should be placed directly in a pot or a special glass bottle, and the roots should not be damaged.

3. Pour water: If it is a pot, put the onion head first and then pour water; If it's a specialized hydroponic glass bottle, fill it with water first, then put the onion heads. If you want onions to grow fast, you can add some vitamin C to promote root growth.

Onions are grown by:After harvesting the seeds by the large bulb seed method, several small bulbs are formed at the base of the seed plant, which are planted in autumn after harvesting and storage, and can also be summered in situ in dry areas, and after germination, the original 1 female bulb becomes 3 4 female bulbs. The number of flowers extracted in the next year is the first year of seed collection, and the second year of seed collection, which reduces the cost, shortens the seed collection cycle, ensures the quality of the seeds, and also improves the yield.

Field Management:After about 20 days after the onion is planted, it enters the slow seedling stage, because the temperature is low when planting, so it can not be watered in large quantities, and too much watering will reduce the ground temperature, so that the young seedlings slow down. At the same time, the new roots of the newly planted seedlings have not yet germinated, and there can be no shortage of water.

So, water the onion more often at this stage. The amount of each watering should be small, and the general principle is not to wilt the seedlings and not to dry the ground, so as to promote the rapid rooting and survival of the seedlings.

2. Prepare the shallots and remove the outermost dry skin and heel of the shallots.

3. Insert the shallots into the pot and place them on the balcony, usually drench the water to keep the soil moist, and you will see the green shoots grow out in about a week.

1. Pre-broadcast preparation.

First, select onion varieties that are suitable for cultivation and select newly harvested seeds to improve germination rates. At the same time, choose the soil with fertile, loose and strong water retention, apply sufficient base fertilizer first, shallow tillage and fine rake, and make a 1-2 meter wide furrow.

2. Sowing method.

Onion sowing needs to choose a suitable sowing date, sowing too early, and the seedlings are too large before winter; Sowing too late, the seedlings are too small, susceptible to freezing and have a low survival rate, so it is best to choose to do it in autumn.

When sowing, the soil should be deeply cultivated to a depth of about 15 cm, and after plowing the land, the base fertilizer should be applied, and the soil and fertilizer should be evenly mixed together, and then the seeds should be sown. When the onion seedlings have grown, the seedlings of the same size can be planted together according to the size of the seedlings, and then they are maintained at the same time, and they can be harvested in about the end of May or early June.

3. Overwintering management.

When the onion is wintered, special attention should be paid to the maintenance to ensure that it survives the winter. When planting seedlings before winter, it is necessary to water them immediately, and then apply a small amount of overwintering fertilizer to allow the onion to grow for a certain period of time, so that it can grow 1 or 2 new leaves and then enter the overwintering state. If the soil is dry, it should be watered sufficiently, to the extent that all the soil is infiltrated and there is no water on the ground.

1. Land preparation: select fertile soil with good water retention for sowing, then plough and apply base fertilizer;

2. Transplanting: select excellent onion varieties suitable for local planting for seedling, and transplant them at a certain distance after the seedling is completed;

3. Other management: weeding, watering and fertilizing should be done in time during the growth of onions.

After about 20 days after the onion is planted, it enters the slow seedling stage, because the temperature is low when planting, so it can not be watered in large quantities, and too much watering will reduce the ground temperature, so that the young seedlings slow down.

Onions require 13 15kg of nitrogen, 8 10kg of phosphorus and 10 12kg of potassium per mu. Pay attention to the application of phosphorus and potassium fertilizers, and avoid excessive nitrogen fertilizers, so as not to cause excessive growth in the shoots and cause sprouts or delay the expansion of bulbs.

Spring sowing onion seedlings before and after the soil should be kept moist, frequent watering and cultivating, in the peak leaf growth period and bulb expansion period is the onion fertilizer and water demand period, should be timely fertilization, watering, 667 square m respectively apply diammonium phosphate 15kg, diammonium phosphate 20kg, potassium sulfate 3 5kg.

Preparation of soil: Mix and prepare soil with sandy soil, pastoral soil and humus soil, and apply lime in the soil to adjust the pH of the soil. Sowing seeds into the soil:

Spread the onion seeds evenly on the surface of the soil, cover it with a layer of fine soil and compact, and water it to keep the soil moist. Post-management: Regularly carry out weeding and weeding to prevent weeds from competing with plants for nutrients.

1. Prepare soil

Onions like loose and breathable, rich in organic matter, so in the planting process, you can mix sandy soil, garden soil, humus soil to prepare soil, and apply lime in the soil to adjust the pH of the soil, so that the soil is weakly acidic or weakly alkaline.

2. Sow seeds into the soil

Before sowing onions, you need to choose seeds that are growing well and healthy, and then spread the seeds evenly on the soil surface with a plant spacing of ten centimeters, cover with a layer of fine soil, and gently step on the soil with your feet, and then water once to improve the survival rate of onions.

3. Post-management

In the process of maintaining onions, it is necessary to cultivate and weed them regularly to reduce nutrient consumption, and water the onions once a week to keep the soil moist and not waterlogged, which is conducive to the growth and development of seedlings, and in addition, apply nitrogen fertilizer to them every other month.

How to grow onions:

1. Onion planting time.

The best sowing date in the Huanghuai River Basin is early to mid-September. In the southern region, the seeds are sown from late September to early October, and planting is carried out in mid to late November. Sowing too early, the seedlings are large, easy to moss after wintering, the late-sown seedlings are weak, the cold resistance is poor, and the bulbs are small and the yield is low.

2. Sow seeds and raise seedlings.

When sowing, the seedbed is required to be loose and fertile, with strong water retention capacity, about one kilogram per mu, covered with a layer of soil or plant ash after sowing, and then covered with a layer of straw or wheat straw and watered. Keep the soil moist and after 8-10 days the seedlings can be unearthed, and then the mulch will be removed. Qi seedlings enter the time seedlings later, and pull out some dense seedlings and inferior seedlings.

Properly control water and fertilizer at the seedling stage, so as to avoid the seedlings being too large when planting at the source, resulting in early sprouting.

3. Colonization. Onion planting is carried out before the arrival of the cold season, the southern region is generally planted in November to early December, seedlings should be graded when planting, planting at the same level, the larger plants can be properly controlled fertilizer water, and the smaller ones should be properly fertilized with water. Generally, 17,000-20,000 plants are planted per mu, with a row spacing of 20-26 cm, a plant spacing of 13-17 cm, and a planting depth of about 3 cm.

4. Field management.

During the overwintering period of onion seedlings, the growth of the whole potato plant is small, the absorption of fertilizer is small, the temperature rises in spring, the plant begins to grow, and a heavier fertilizer must be applied. From late March to early May is the season of vigorous onion growth, fertilization should be applied 1-2 times, and 200 kg of human and animal manure or 5-10 kg of urea and 5-8 kg of potassium sulfate should be applied per mu. When the onion bulb is enlarged and close to maturity, the water and fertilizer should be stopped**, and it needs to be watered in time when there is a drought.

The root system of onions is shallow, and the cultivation and weeding can only be carried out in shallow medium cultivation, and the depth of cultivation should not exceed centimeters.

5. Harvesting. Onions are generally harvested between late May and early June. Sooner or later, the harvest time directly affects the yield and storability, when the onion leaves gradually begin to turn yellow from the bottom up, and the false stems become soft and begin to invert; The bulb stops swelling and is leathery on the outside and enters the dormant stage, indicating that the bulb has matured and should be harvested in time.