What s the deal with spinach cryogenic barriers? What will happen to spinach?

Spinach sprouting, flowering, and seed setting are the normal physiological functions of spinach growth, development, reproduction, and reproduction, and this physiological function always exists. The phenomenon of spinach sprouting is in early spring and summer cultivation and overwintering cultivation have appeared, the temperature in autumn is cool, the time is relatively short, the most suitable for spinach planting, the reason for spinach sprouting, spinach itself does not like to grow at high temperatures, and it is easy to grow at high temperatures with short leaves.

<> spinach planting temperature is suitable for about 25 degrees Celsius, cold resistant and not high temperature tolerance, so spinach is not very suitable for planting now, and it is necessary to wait for the autumn weather to really cool down, because the temperature is too high now, and the folk autumn tiger is still in power, and the high temperature is still there. There are two kinds of spinach common in our countryside, one is the sharp-leaved spinach, which has pointed and long leaves, long and thin petioles, smooth leaf surface, and bright green color. This type of spinach generally belongs to the spinach that grows in spring and summer.

Another type of round-leaved spinach has oval-shaped leaves with petiolesIn spite of the situation, the title is talking about the phenomenon of sprouting in the spinach growth period, which is mainly caused by the following aspects, so it is necessary to prescribe the right medicine in the prevention and control. Spinach is a hardy vegetable and a long-day crop, and the longer the day, the faster the moss will bloom. There are two varieties of spinach, and the seeds are distinguished as thornless and thorny.

The thorny seed leaves are thinner, more heat-resistant, mature early, easy to moss, and suitable for early sowing. Spinach is water-loving and fertilizing** sufficient. the Persian state in western Asia, present-day Iran; It is a one- and two-year herbaceous plant of the Chenopodaceae family, which has the characteristics of cold resistance, strong adaptability, short growth cycle and late budding. And spinach also contains a variety of minerals and vitamins, making it a nutritious leafy vegetable.

First of all, thank you for having me. As a very nutritious vegetable, spinach has always had the reputation of "nutrition model student". It can not only be used to cook soup, but also can be used cold, or to boil porridge and make cakes.

Spinach low temperature barrier is a physiological disease, generally affected by the temperature environment is more serious, in early spring or late autumn when the low temperature is lower than -5, it is easy to cause frost damage, so to let spinach safely pass the low temperature obstacle period, it is necessary to do a good job of temperature control, to avoid the phenomenon of spinach yield reduction. Once the disease occurs, the leaf edge will turn white, thin paper-like, and seriously resemble scalding with boiling water. This will lead to a reduction in spinach production and harvest, which is very detrimental to growers.

Spinach has a low temperature barrier, its growth is affected by temperature, in early spring or late autumn when it encounters a low temperature below -5, spinach will become ill, and the edges of the leaves will turn white, as if scalded in boiling water.

It may be because the temperature is too low that the spinach will have symptoms, which will reduce the sales of spinach, and the quality of spinach will be very bad.

Spinach can resist temperatures as low as -10 degrees Celsius.

Spinach is cold tolerant to minus 10 °C, its cold resistance is strong, when the temperature is below minus 15 °C, it will stop growing, if the temperature drops to about minus 20 °C, the aboveground part withers, but the underground roots can tolerate the low temperature of minus 30 °C.

When the temperature was higher than 25-26, spinach growth was stunted; If it is in 4-6 true leaves.

At a low temperature of minus 40, only the outer leaves are frozen and yellowed, and the roots and young shoots will not be damaged.

Before winter, watering a frozen water for spinach, so that the ground temperature is maintained in a stable range, even if the outside world suddenly cools down, the travel rush will not cause harm to the seedlings, and after the ground is frozen, the water is not easy to lose, and the next year's green water can be dismantled and destroyed to be watered later.

Spinach grows in a variety of environments:

Spinach is a cold-tolerant vegetable, the seeds can germinate in the environment of 4 °C, and its adaptability to the soil is strong, suitable for planting in water, fertilizer, loose, fertile fields, can make the plant grow vigorously, improve the yield of harvesting.

Disease control of spinach:

Spinach is susceptible to downy mildew during the growing period.

This disease mainly harms the leaves, when the disease occurs, the leaves will appear light yellow irregular spots, and gradually expand after the lesions are connected to each other, resulting in the yellowing of the plant noise type plants, which can be sprayed with 500 times of 90% Plague Frost Wet Powder in the early stage of the disease to prevent and control.

The amount of sowing affects the cold tolerance and yield of the plant. When the sowing amount is too large, the seedlings are dense, the root development is limited, the aboveground part is overgrown with weeds and yellow, the cold resistance is poor, and the seedling death rate is high. At the same time, overgrown plants sprout and bloom when they do not grow the following spring, and both yield and quality decrease.

When the sowing rate is too low, the leaves are too open, the upper and lower leaves overlap, the light-receiving area is reduced, and the plant growth is slow. Although the weight of a single plant is higher than that of dense planting, the total yield is not high due to the small number of plants per unit area. The appropriate seeding rate standard is:

After emergence, the light receiving attitude of a single plant is good, each leaf can fully receive sunlight, the root system is developed, the single plant can be fully developed, and the group yield is also high. Sheds that do not remove the old film can be used effectively. The greenhouse film is covered with a shade net to prevent the weather temperature from being too high, and it is also covered with an insect net, which can effectively prevent aphids and gray planthoppers from entering the greenhouse, does not affect ventilation, and can safely isolate toxic vectors from entering the greenhouse.

Spinach has thick roots, deep soil, and easy water absorption. The requirements for soil are high, and it is generally necessary to choose high-quality soil with fertile soil and strong drainage. If possible, adding a little coarse sand or soot to the soil can improve the permeability of the soil and facilitate the rooting of seeds later without affecting the growth of spinach.

The survival rate of spinach cultivation depends mainly on the quality of the seeds. When planting, it is necessary to ensure that the seeds are still within the shelf life. If the expiration date is exceeded, the germination rate will be low.

Depending on the local temperature, the seed variety can be chosen. If the temperature is high, you can choose a heat-resistant variety. If the temperature is low, you can choose a cold-tolerant variety.

Of course, the better the quality of the seeds, the higher the germination rate.

You can pour a little water after sowing, remember not to pour too much. Summer and autumn sowing should be covered with straw or shade nets to avoid the influence of sun intensity on seed development and keep the soil warm and moist. Spinach sown in winter and spring is usually covered with plastic film to maintain temperature and promote seed development.

Spinach grows fast and generally sprouts about seven days after sowing. When it grows real leaves, it needs to be cleaned with water to provide nutrients for spinach growth. Fertilization should generally start with a thinner fertilizer and then apply more fertilizer.

Spinach is generally fertilized with farmhouse fertilizer, and urea can be applied once after it grows to more than ten centimeters. Spinach is rich in iron and is helpful for people with iron deficiency anemia. Especially when women menstruate, eating more spinach is of great help to the body.

Spinach is suitable for growing in an environment with a temperature of 20-26 degrees, when breeding spinach, if the ambient temperature is lower than 0 degrees, it will cause the plant to be frostbitten, at this time, it is necessary to use plastic film to cover the spinach, and if the ambient temperature is higher than 36 degrees, it will cause spinach to be suffocated, and it needs to be sprayed with water to cool down.

It must be physically cooled, it must be watered more, and then sprinkler irrigation must be used, so that the temperature of the greenhouse will come down.

We should water the spinach and lower the temperature of the spinach so that the spinach will grow well.

A greenhouse can be built so that the temperature inside the greenhouse is not so high.

Spinach is a very delicious vegetable, the nutritional value is very high, spinach can be planted all year round, according to the different planting time is divided into autumn spinach, overwintering spinach, spring spinach and summer spinach and other four types, and because of the different varieties, the sunshine length sensing is also different, so the planting yield and ** are not the same.

Make sure there is a suitable number of plants per unit area; Harvest early in spring and harvest more to ensure the unity of production and profitability. Therefore, planting at the right time is the key to the success of overwintering spinach planting, and the average temperature of the day can be reduced to 17 19 hours in each region according to local weather conditions. This is a good time to grow spinach.

Although the growth cycle of spinach is relatively short, spinach grown outdoors in winter will be disturbed by the ambient temperature and its growth will be retarded, and like most food crops, spinach also needs to encounter overwintering problems, even if spinach has good low temperature resistance. In recent years, the popularity of greenhouse planting, spinach has also become a key type of greenhouse winter production, because greenhouse is relatively good in thermal insulation and water retention, so it is slightly more important in spinach wintering.

As a leafy vegetable, the market demand for organic fertilizers is relatively large in the case of growth, especially the base fertilizer, which is very important for the growth of leaves and stems. Whether it is outdoor planting or greenhouse planting, in the case of spinach growth in winter, in order to accelerate its growth rate and resist cold damage, the main situation is that spinach itself must be relatively robust, which should fertilize spinach on time.

After the previous crop is obtained, it is necessary to subsoiling and raking the idyllic scenery, so that the soil is loose and rich, water retention and soil consolidation, and slightly acidic and alkaline soil is beneficial to the growth of spinach. Spinach is dominated by cultivating vigorous seedlings, and when 2-3 true leaves emerge, a seedling thinning is carried out for small seedlings with too high relative density, and a new high-lipid film is sprayed to prevent bacterial infection, improve the ability to resist disasters, improve the compressive strength of plant photosynthesis, and maintain the healthy growth of seedlings. It is not a unique drought, most of them are not watered, and the balance of growth on the ground and underground is maintained.

In the specific production, the key to the cold protection of spinach is the method of road covering, and there are two types of raw materials used, one is dry wheat straw, and the other is mainly agricultural mulch. From the point of view of cost, the cost of wheat straw or straw is lower, and in the later stage can be used as biological organic fertilizer to return to the field, from the actual effect, agricultural mulch film can not only lock the soil temperature outflow but also avoid the loss of soil layer moisture, heat insulation and water retention effect is better, which method must be used by the planters according to their own specific conditions to determine.

I think you can choose to plant it in the shade. Avoid exposure to the sun and be sure to maintain adequate humidity.

Spinach its root system is relatively strong, the requirements for the soil is very high, we must choose the soil fertile, good air permeability, good drainage of sandy soil, convenient for future rooting, before sowing the seeds must be soaked and germinated.

When planting spinach, you must pay attention to the way you plant, but also pay attention to your planting spacing, but also pay attention to the process of fertilization, and also pay attention to the process of watering. Pay attention to frost protection.

Summer spinach, also known as compound spinach, refers to a spinach planted in stages from May to July and harvested from late June to late August. The unfavorable climatic conditions of summer temperature and strong light will adversely affect the appearance of spinach seeds and the normal growth of plants, so spinach yield is low, the quality is not good, it is easy to extend in autumn, some pests and diseases are difficult to inhibit, and it is difficult to plant, the growth stage of spinach in summer is in the high temperature period, if the nutritional growth is inhibited, sufficient fertilizer water should be provided in a short time after sowing to promote the vegetative growth of autumn and spinach, prevent early autumn, reapply basic fertilizer, and clean up the field after harvesting the previous crops, Fertilization begins immediately, and sown in phases from mid-May to early July. At this time, the seeds must be treated at low temperatures, and well water germination method is generally used.

To popularize Cui Ya's knowledge, put spinach seeds in a sack, soak them at night, take them out the next morning, and then spread them at home or in a cool place, cover them with a wet sack, and pour water once a day in the morning and evening to keep the seeds moist. Sowing can be done after 7 to 9 days. Another method is to germinate at 20 to 25 degrees Celsius after 24 hours of treatment in a low-temperature freezer or freezer at around 4 degrees Celsius, and sowing after germination after 3 to 5 days.

To grow spinach in summer, choose spinach varieties that are suitable for summer sowing. It is important to choose not only high temperature and insect resistance, but also varieties that are not prone to moss. Water the land once before it is prepared and wait until it is wet before stopping.

When preparing the land, there should be fertilizer on the soles of the feet, rotten chicken and sheep manure may be fine, and compound fertilizers containing nitrogen, phosphorus and potassium can also be used. The land is then prepared with a rotary tiller.

When sowing, you can sow seeds evenly at will, or you can sow them with furrows. After sowing, the seeds and soil are mixed well and evenly with an iron shovel, and then the soil is compressed. In summer, the temperature is high, and the seeds germinate easily, so there is no need to soak the seeds in advance.

After planting spinach, it is necessary to water it frequently so that the spinach germinates properly. Moreover, timely watering can harvest spinach. Spinach has a lot of water, so it also has a lot of water requirements.

Spinach is prone to insects in summer, so be prepared for deworming, and if you have bugs, be prepared for deworming. There are bio** disruptors that do not need to be sprayed with pesticides and do not hinder the human body. It's not difficult to grow spinach, which is more expensive than meat.

Spinach is not only delicious, but also highly nutritious. In the hot summer, if you can eat light green spinach, it may be a cold summer.