How to grow open field spinach in spring to achieve high yields?

Spinach is one of the leafy vegetables that many people love to eat, and it is widely cultivated in China because of its rich nutrition and stable demand. At present, spring is when the temperature is rising, which is very suitable for planting spinach in the open field, and the spring spinach growth period is short, and it can be harvested and marketed 30 to 50 days after sowing. So how do you grow spinach in spring?

Let's learn together.

1. Variety selection

In early spring, the temperature is relatively low, and the light hours are longer in the later period, and some leafy vegetables are prone to sprouts. Therefore, when planting spinach in spring, it is necessary to choose round-leaved varieties that are not easy to sprout and have strong disease resistance. Round-leaved varieties have hypertrophied leaves, short stems and leaves, and less crude fiber, and taste a little better after spring sowing.

2. Soil preparation and fertilization

After the previous crop is harvested, the vegetable soil is turned deep to remove the stump roots. When the soil clods are thawed in early spring and scattered when touched, 000 kg of decomposed organic fertilizer, 25 kg of urea, and 10 kg of potassium fertilizer are sprinkled as base fertilizer per mu, and then shallow tillage is leveled on the ground, and the flat furrow is made into a flat furrow ready for sowing.

3. Sowing method

Spinach seeds can germinate at four or five degrees, the most suitable temperature is 15-20 degrees, like the climate after the beginning of spring is suitable for planting spinach, pay attention to watering and moist after dry sowing, and the seedlings can emerge about 5 days after planting. In addition, the spinach seeds we usually take to plant are purchased, not self-kept, and the spinach seeds purchased back are generally the outermost layer of the tough shell that has been removed, so the seeds are easy to absorb water and germinate, basically do not need to do seed treatment, direct dry sowing, and pay attention to watering and moistening later.

4. Watering and fertilizing

Spinach stems and leaves are tender and have many leaves, and more water is needed to grow, but the root system is not developed enough, so don't water too much at one time, and follow the principle of not drying and not watering. Watering is frequent watering, generally watering once every 2-3 days is more common, but there is more rain in spring, and watering can be reduced depending on the weather conditions.

During the growth period of spinach, more nitrogen fertilizer is needed to promote leaf growth and an appropriate amount of potassium and phosphorus and other elemental fertilizers to strengthen seedlings, and spinach planting does not need to be transplanted, so it is necessary to apply foot fertilizer before sowing, and then top dressing 2 times after emergence. Whether it is base fertilizer or top dressing, it is recommended to use farmhouse fertilizer, such as rotten chicken, duck, pig, cow manure and so on.

5. Harvest at the right time

According to the growth of spring spinach and market demand, it can be harvested and marketed in a timely manner, and the yield is low if it is harvested too early, and it is easy to cause the phenomenon of sprouting to reduce the commerciality and affect the income. After harvesting, the next crop can be sown with grain and oil crops such as summer peanuts or summer maize, and other crops can also be sown.

In general, spring is the season suitable for planting spinach, but if you want spinach to grow well, you must combine the climatic characteristics of spring to carry out scientific management, so as to improve the quality of spinach and sell it at a better price.

Selection of planting varieties: The growing period of open-field spinach in spring coincides with the high temperature and long sunshine season, the growth period is short, and it is easy to moss. Therefore, choose varieties with strong heat resistance and drought tolerance, such as round-leaf spinach.

Select some spinach seeds with a relatively high germination rate, evenly sprinkle them in the fertile nutrient soil, the seeds should not be too high, apply organic fertilizer appropriately, and pay attention to the prevention and control of pests and diseases.

First, choose cold-resistant, late sprouting, strong disease resistance, high-yield round-leaved spinach varieties planted two, spinach is suitable for planting in loose and fertile, leeward to the sun, fertilizer and water, smooth drainage of the soil planting three, before planting per mu of decaying organic fertilizer 3000 kg, urea 20 kg, potash fertilizer 10 kg as base fertilizer, and then deep soil, level the ground, make a flat furrow, wait for sowing four, spring open field planting spinach, when the temperature is low, the seeds can be soaked in warm water for about 5 hours, and then take out and put in 18, Germination at about the temperature, wash with warm water every day, 4 days later and can sprout and sow seeds, when the temperature is high, you can directly dry seed sowing, ditch watering enough water, sowing seeds to cover fine soil.

Spinach is one of the most commonly eaten vegetables in our lives and one of the most grown vegetables in our homes. Spinach has a strong ability to resist cold, and the planting time of spring open-bottom spinach is usually after the soil surface layer is 4 6 cm frozen, and it is better to sow it at 4-5 hours when the daily uniform temperature is even. However, the sowing period is in mid-March, and it can be harvested 30 to 50 days after sowing.

Consumption of spinach in spring should pay attention to choosing the appropriate type and avoid sprouting.

The types of spinach are divided into two types: thorny and thornless according to their leaf shape and seed shape. There are thorny seeds, leaf halberd-shaped, thin leaves, sharp apex, also known as pointed leaf spinach, mature early, but cold and not heat resistant, easy to sprout. The spinless species, the leaves are ovate, the apex is obtuse and rounded, and the leaves are hypertrophied and thick, and it is often called round-leaved spinach.

Round-leaved spinach matures later than sharp-leaved spinach, but has stronger heat tolerance than sharp-leaved spinach, which is suitable for cultivation in early autumn or spring, and is not easy to sprout. Under normal conditions, most of the spinach cultivated in the open air in spring is cultivated in spring with round-leaved spinach species with strong heat tolerance.

The most common method of growing spinach is direct seeding, which does not require seedlings. However, in order to improve the emergence rate of spinach before direct sowing, it is necessary to soak the seeds before sowing. Soaking is to soak spinach seeds in clean water for 12 hours, so that the germ wrapped in a hard shell can absorb enough water to activate the activity of the embryo, and then it can be planted.

There are usually two ways to grow spinach, which can be sown in strips or spreads, at a depth of 3 cm and with a thickness of cm. However, no matter which method of planting is used, it must be watered thoroughly once after planting, and after watering, in order to avoid the drought in the air affecting the emergence of spinach, a layer of straw can be covered on it, and the straw can be removed until all the spinach seedlings emerge.

Spinach has a small water requirement in the early stage of growth, and the water required for spinach growth can be replenished in time according to soil moisture. After spinach grows 2 true leaves, it can be separated from cultivating and weeding to time seedlings, cultivating can make the soil more secure, which is conducive to spinach roots to better absorb water and nutrients in the soil, and removing weeds during tillage can prevent weeds and spinach from robbing nutrients.

Due to the short growth period of spinach, it can be harvested after 40-50 days of planting, so there is no need to stop topdressing during the growing season, and only need to reapply the base fertilizer at the time of planting to meet the nutrient needs during the growth period. Pay attention to the application of base fertilizer to be abundant and well-rotted farmhouse fertilizer, and then with an appropriate amount of compound fertilizer, before sowing the farmhouse fertilizer should be applied into the plot early, and then stop deep ploughing and fine harrow on the plot of sowing in demand, so that the soil and fertilizer are abundantly mixed and planted in the land.

You should find a piece of land with good air permeability, when planting spinach, you should soak the seeds in cold water for 24 hours in advance, and after planting spinach, you can lay a plastic film, and the temperature should be kept above 12 degrees.

If you want zongzi spinach, you must choose the field, because the fertility of the field is relatively high, and the spinach grown will grow better.

It is necessary to choose spring for planting, and then timely field management, and timely use of organic fertilizer and compound fertilizer in the week after emergence to ensure soil moisture.

Spinach is grown with dried seeds, and germination is slower. In order to make spinach sprout early, growers can take soaking to germinate, or use stumps to break the thick exocarp and break the seeds to induce germination, or soak to germinate. When planting spring spinach, it is best to fill the bottom of the foot with water first, and wait for the water to seep out before sowing seeds.

Then cover about 1 cm of soil.

It is best to plant in sandy soils. In order to ensure that the soil is loose, the growers apply more fermented organic fertilizer, and then add about 50 catties of chemical fertilizer to one acre of land as base fertilizer.

To plant spring spinach, the initial planters should cover the film to keep warm. After planting for about a week, the spinach sprouts, at this time it is necessary to hoe the grass immediately, etc. And remove the membrane, or change it into a small arch.

However, the planters should quietly protect the loss of luck and sensitive certificates, and the night cover and the rain cover in the sunshine, so that the spinach seedlings can see more light. When the spinach seedlings are about 6 cm high, the seedlings can be replenished appropriately.

Spinach cultivated in the open field in spring is usually planted after thawing at 4-6 cm of soil surface in early spring, and it is better to plant at an average daily temperature of 4-5 until the end of April. Spring spinach has a short growth period, in order to speed up germination, soak and promote germination before planting. The planting site selects a fertile, loose and moist field, applies foot fertilizer, and adopts a high furrow for planting.

Planting is done by the wet pin method of planting, which is to first irrigate the water, then spread a layer of fine soil after the water seeps in, and then sow and then cover the soil. Because of the short growth period of spring spinach, the plant clusters are also very small, and the amount of seeds used in one acre of land can be increased to 7 kg.

Spinach fertilization is generally the basic principle that it should be thin at the beginning and thick at the end. In usually well-watered land, growers can take the first watering when the spinach has 2-3 leaves. When watering the second water, the planter can make 30 catties of fertilizer for one acre of land.

About half a month before the spinach harvest, the growers should top fertilize a fast-acting fertilizer.

In the process of spinach growth, in order to improve the efficiency and quality, the growers can also use effective things to solve the problem. Planters should water according to the weather and soil moisture content in the field to ensure that the soil in the field is moist.

The first is to choose the right soil, the second is to fertilize scientifically, the third is to water reasonably, the fourth is to ensure that sufficient light is obtained, and the fifth is to pay attention to the prevention and control of pests and diseases.

It is necessary to choose early guess and ripe varieties, but also to sow early in a timely manner, fine land preparation, apply sufficient base fertilizer, and also carry appropriate dense planting, elevated cultivation of ear reeds, and pay more attention to field management.

Under normal circumstances, the surface layer of the soil is 4 6 cm, and about 10 days after the emergence of seedlings, it is necessary to start chasing the seedlings and tolerate fertilizer, so as to promote the growth of seedlings and maintain the humidity of the soil.

The overwintering spinach will be watered before wintering, and there will be snowy temperatures in all winters, so don't rush to water the spinach in the next spring. The temperature in spring is unpredictable, the temperature is hot and cold, if the green water is watered in advance, the temperature will suddenly drop and the spinach will be frozen, so after the spinach is green, if the soil moisture content can be temporarily not watered, if the soil layer is less water, the temperature rises rapidly, then you can water with a small amount of water. When the spinach enters the vigorous growth stage, it is necessary to increase the frequency of water injection and the amount of watering to keep the soil layer in a moist condition to promote the rapid growth of spinach.

Growing spinach, the temperature must be stable. Spinach grows at a stable and <> temperature

If the temperature is too low, the spinach will stop growing, if the temperature is too high, the spinach will grow sick, and the spinach will cause damage to the total yield, the leaves of the spinach will turn yellow, resulting in a decrease in quality, which will jeopardize the profitability of spinach. Therefore, a stable temperature can make the leaves of spinach sufficient green and the stems can grow abundantly, so that spinach can achieve the goal of high yield. For high-yield spinach planting, the focus should be on early work, such as selecting seeds, controlling spinach seedlings, and establishing the hardness of planting.

Just like farming, the weight and health of the piglets are a critical hazard to the net weight of the subsequent slaughter rate.

Therefore, doing a good job in spinach cultivation is important to complete the high yield of spinach. Choose flat furrow open field planting, furrow width meter. First sow the spinach in the furrow, and then in the spinach void in the second half of the growth of the spinach beans, 5 rows per furrow, and the plant spacing is 20 cm.

After the green beans are harvested, they are ploughed again to make furrows, and 2 rows of cucumbers are planted in each furrow. In the second half of cucumber growth, use the gap between the rows of cucumbers to sow oil and wheat vegetables; After harvesting, the oily wheat vegetables can be planted again. Spinach should be planted in the soil rich soil, strong thermal insulation ability, strong air exchange and weak pH value on the soil layer, in the planting to ensure that the temperature at 20 degrees is the best, in order to ensure the production volume, in the planting need to care about the planting density, <>

It should not be too dense, otherwise it will endanger the digestion and absorption of its nutritional value. Spinach from planting to obtaining, the growth period is still quite long, so before planting, it must be fertilized and the base fertilizer is abundant, so that spinach can grow faster, and its quality can be gradually improved. Especially in winter, the temperature is low, the soil organic matter is reduced to a certain extent, along with the growth of spinach, the amount of fertilizer is relatively large, and it will also cause the soil layer to be defertilized, resulting in a lack of nutrients in the soil layer, and it is not good to sprout.

The base fertilizer is generally dominated by organic fertilizer, and can only be applied to the field after the fertilizer is alcoholized, if there is no production of alcohol through the fertilizer, it will cause root burning after application, which needs to be noted.

To sow in time, we should also pay attention to the temperature outside, try to keep the temperature at about 15 degrees, watering in time, and timely topdressing after the emergence of seedlings.

It is necessary to pay attention to the condition of the soil, first of all, it is necessary to water reasonably, fertilize, and pay attention to the density of planting, so as to achieve high yield.

To plant in the spring, it is also necessary to strengthen field management, timely watering, ensure soil moisture, and timely drainage and irrigation.