The weather is cold in the north in winter, how to protect the seedlings of spinach in the north dur

What vegetables are suitable for growing in the north in winter? In the north, now start to grow vegetables, plant more open-air vegetables, there are cabbage, lettuce, spinach, garlic baby cabbage, spinach, coriander, cabbage, cauliflower and white radish, green radish and not one by one, these vegetables in our mountainous area, now have begun to plant, for example, if we want to plant cabbage, we have to turn the ground over the ground first, we will sprinkle the seeds, after the seeds are sprinkled, we will water a little water on the seeds, If you have that kind of cow dung or chicken manure in the house, and then sprinkle a little bit of it, it will make the vegetables grow tender and good, like the above vegetables, if you plant them, they will sprout in about four days at most, and we can't water them during these four days.

Cabbage. Cabbage is a native vegetable in China and has a long history of cultivation. Cabbage is hardy and prefers a cool climate, so it is suitable for growing in the cold season, and it is very resistant to low temperatures.

However, if you consider the income benefits, it depends on the year, which is basically a year of cabbage ** low price a year, **subject to the market ** volume limit.

In the northern winter, some hardy vegetables such as spinach, garlic seedlings, cabbage, green onions and other winter-free vegetables can be planted without frozen soil. In the case of permafrost, such as in the cold regions of Tohoku, it is not possible to grow vegetables in the open air. Now there are more greenhouses, and the greenhouses in the north are called greenhouses by the locals, with high temperature, production cost, and service life cost-effective.

General vegetables can be planted, and this planting needs to be considered more, such as variety, planting, suitability, vegetable harvest, etc.

Leek. Leeks are not very afraid of the cold, and when it snows, the leeks that Xiao Yajun puts in the pot on the terrace will not freeze and hang up. It is very easy to grow leeks from leek roots, which is much simpler than growing them with leek seeds.

And after eating, you can fertilize, and then continue to eat, eat many times, and plant for a few years without a problem.

For northerners, spinach becomes an essential vegetable in winter, and it has the same status as cabbage. Spinach is also an extremely hardy vegetable, that is, it does not freeze to death after snow, but the leaves will turn dark green and look a little pitiful, but the taste is quite sweet, and it is also an indispensable vegetable for eating hot pot in winter.

The weather in the north is relatively cold, and when spinach is overwintering, it can be covered with a thick layer of corn stalks, and a greenhouse can be built to keep warm and protect the seedlings.

Put it in the greenhouse. Spinach is cultivated in greenhouses to effectively protect seedlings.

First of all, it can be mulched, so that the planting temperature of spinach can be guaranteed, and it can also be planted in greenhouses.

When the spinach in the north is wintering, it is generally wrapped in some plastic wrap, and then a thick cover is spread on top to keep the spinach from the cold.

Pesticide technology should be used, and the spinach should also be covered with a film so that the spinach will be very warm and will be well preserved.

1. Pour frozen water. Pouring frozen water must be "certain" and "suitable". "Certainly" means that according to the amount of soil moisture, it is decided whether to water or not to water frozen water.

Generally, the absolute moisture content of sandy loam is less than 15, loam is less than 17, and clay is less than 20. "Two suitable" is timely watering and appropriate watering. The appropriate time for pouring and freezing water is when the soil layer can thaw during the day and freeze at night.

Moderate watering means that the amount of frozen water should not be too large or too small. Generally, it is appropriate to connect the bottom moisture. Second, chase the overwintering fertilizer.

Top dressing of overwintering fertilizer can increase soil nutrient content, play a role in winter fertilizer and spring, and promote weak to strong. It is especially important for vegetable fields with less bottom fertilizer, poor soil fertility and weak seedlings. Therefore, overwintering fertilizer should be applied in combination with watering and frozen water, generally 10 kg of urea or 20 kg of ammonium sulfate per mu, and top dressing with water.

Spinach overwintering in the open field in the north is generally planted in late August.

The northern open field wintering spinach is generally in late August to start the selection and sowing, the temperature in the north is low, sowing too late is easy to encounter low temperature weather in the seedling stage, frost damage, affecting the growth of spinach, and reducing yield.

How to grow spinach in the open field in the north?

1. Choose the right variety

Choose varieties with good cold tolerance, excellent quality and strong yield, such as Hua Peng No. 1, Liaoning round leaf spinach, Shuangcheng sharp leaf spinach, round leaf spinach, Zhucheng sharp leaf spinach, etc., so that the planting yield is higher.

2. Deep ploughing and land preparation

Planting wintering spinach in the open field has high requirements for soil, choose a neutral or slightly acidic soil with loose and fertile soil, good air permeability and strong drainage, and apply 5000 kg of decomposed organic fertilizer and 25 kg of ternary compound fertilizer per mu after deep land preparation, and make a wide flat furrow.

3. Cultivating management

When overwintering spinach seedlings grow 1-2 true leaves, water them properly, and keep the soil moist during this period, but no stagnant water. If the seedlings are weak, top dressing can be carried out. When 2-3 true leaves are left, the seedlings should be spaced and the plant spacing should be kept at about 6cm.

In the later stage, water control, cultivation and other methods can be adopted to promote the development of spinach seedling roots, so that the leaves become thicker and can be successfully wintered.

Freezing water can be poured once before freezing, usually in November, to keep the soil temperature stable. If there is heavy snow and bad weather during the long period of returning to Qingwang, the snow should be removed in time to avoid root rot.

4. Suitable for harvesting

When the overwintering spinach grows to a height of more than 10cm, it can be harvested according to its growth situation and market demand, and the harvest is best carried out on a sunny day to avoid excessive water contamination of the leaves and affect its commerciality.

Spinach is highly nutritious and is the most commonly eaten vegetable in winter, with a tender taste and high chlorophyll content. Spinach likes a cold environment and is not resistant to heat, the temperature suitable for growth is 15 degrees Celsius to 20 degrees Celsius, spinach is very cold-resistant, mainly cultivated in autumn and winter, winter spinach we generally call it wintering spinach, because winter spinach has to go through wintering to spring for anti-green growth, so we plant wintering spinach generally in October, depending on the local climate conditions, some places can be cold resistant is also very strong, suitable for long-term storage, and easy planting, high yield, It can be found in the deep winter season** and is one of the important vegetables in the winter in the northern region.

<> can be grown all year round, which means that we can eat tender and fresh spinach all year round. So in rural areas, people will grow some in small vegetable gardens or fields all year round, so how should spinach be managed in winter? When the leaves grow to 25-35 cm long, they are ready to be harvested.

The spacing of the old root spinach should be 30-40 cm, after picking the large leaves, cover a layer with farmhouse fertilizer, the spring of the second year, if it is a sunny slope, the spinach has not yet melted through the spinach began to sprout and grow, and the land preparation and fertilization: the spinach field should choose a plot with fertile soil and good thermal insulation and water retention. Before ploughing, apply 5-6 square meters of high-quality farmhouse fertilizer per mu, 40 kg of compound fertilizer, intensive tillage, fine raking, and leveling and furrowing.

When preparing the land, it is necessary to leave a moderate distance to protect against cold wind barriers.

When the leaves grow to 25-35 cm long, they are ready to be harvested. Leave the old root spinach spacing should be 30-40 cm, after picking the big leaves, cover a layer with farmhouse manure, the next spring, if it is a sunny slope, the ground has not yet melted through the spinach began to sprout and grow, spinach watering frozen water must be timely, appropriate amount. The time of watering frozen water should be flexibly controlled according to different regions and the climate conditions of the year, and the soil ground can be frozen at night and thaw at noon the next day as the appropriate time for watering frozen water.

The size of spinach is very important before winter, and it is not resistant to low temperatures at all, and it is larger to increase the contact area with the outside world and is more susceptible to freezing. Before wintering, it is necessary to fatten and promote the growth of spinach, so that the spinach leaves can grow quickly to about 5-6 pieces, which is more suitable for the spinach wintering stage, at this time, the spinach itself has strong resistance, and secondly, the area affected by the outside world is not very large. However, when fertilizing, we should pay attention to the dosage and collocation, so as not to grow spinach and then freeze to death on a large scale!

First of all, if the soil moisture is insufficient before the emergence of seedlings, it should be lightly watered. Watering should be controlled after the seedlings are ready, so that the roots of the spinach can better develop deep into the soil. And before winter, spraying should be done in time to prevent aphids.

If aphids are not controlled before winter, then when the temperature warms up in spring, spinach will be exposed to pests and diseases.

Spinach overwintering, according to the experience of some old farmers who grow spinach, 5 fat true leaves are the best. Before wintering, if the seedlings are small, the root system is shallow, the nutrient storage is not tolerant to freezing, the early spring can not reach the morning market, the wintering such as the growth is too large, especially the spinach that has been smoked, it is more resistant to freezing, the overwintering damage is too large, the virus disease is serious, the second year of recovery and growth is slow, and the quality is poor. The most suitable sowing date is around the time of white dew, and it is best to build a wind barrier every 5 to 6 days to raise winter temperatures, protect spinach from winter, and promote early growth in the following year.

First of all, it is necessary to choose a soil with a relatively high temperature, and the fertility of the soil must be good, and it is necessary to do a good job of ventilation and watering, and must pay attention to keeping warm.

Spinach planting in winter should do a good job of keeping spinach warm, and also ensure the humidity and temperature in the greenhouse, so as to ensure the seedlings of spinach.

In winter, the spinach field can be covered with black mulch, which can increase the temperature so that the seedlings do not freeze to death, and moisture can also be formed.

The nutrition of spinach should be improved, and the temperature of spinach should also be raised, and some cow manure, pig manure should also be used, so that spinach can absorb enough nutrients and the yield will be particularly high.

The temperature of the spinach should be increased, and a shed can be built for the spinach, so that its temperature is relatively high and it is not easy to freeze to death.

The best way is to cover the spinach seedlings with a greenhouse, so that even if it is cold outside, there is no fear that the spinach seedlings will freeze to death.

There are many ways. It can be covered with film or planted in a greenhouse. Personally, I think I can grow the spinach in autumn in a greenhouse, and the temperature is very suitable.

Cover with plastic film to keep out the cold, pour frozen water, and use a greenhouse to keep out the cold. It is better to cover the plastic film, and it can also be reused, which saves costs and has a good effect.

The method of protecting the seedlings is to cover the roots with mulch, so that they can be insulated, and at the same time, there is no drought due to the formation of water vapor, and there is also a greenhouse. The first way is better, cost-saving, and very fast.

Generally, it is planted in greenhouses, and you can also water less, and pay attention to the watering time, to choose the weather, when the sun is warm, you can also attach a layer of plastic film to prevent cold, in fact, it is the best to put it in the greenhouse, and it can also be very trouble-free.

You can cover the seedlings with some plastic wrap, pay attention to the appropriate temperature, observe on time, water and fertilize regularly, cover the autumn spinach with a layer of thermal insulation film, this method is effective, and it is particularly good, and so on.