What are the spinach cultivation techniques? When is it planted and harvested?

Because the overwintering spinach should surpass the three different temperature changes in autumn, winter and the next spring in terms of time, therefore, in the selection of categories, it is necessary to choose the species with strong cold resistance, good winter performance and late sprouting, which is conducive to stable wintering, and the production and manufacturing of next spring will delay the duration of sprouting, so as to improve the efficiency and quality. The key to planting spinach is to plant in autumn as the primary method, generally in August and September, and can be picked in batches 30 to 40 days after planting.

However, in early autumn, it is necessary to choose early-maturing varieties that are more resistant to high temperatures and grow quickly. Overwintering spinach should be planted from the beginning of October to the beginning of November, and picked in batches around the Spring Festival. The cultivation of overwintering spinach is very susceptible to ultra-low temperatures in winter and early spring, and after early spring, the general species are very prone to sprouting.

Therefore, when selecting the types of overwintering spinach, it is necessary to choose medium-ripening or late-ripening varieties with good wintering, late sprouting, strong cold resistance, and abundant harvest.

Spinach is a low-temperature resistant vegetable and fruit, the plant is around -10 degrees Celsius, and can also be cultivated in the open field for safe wintering. In general, the compressive strength of low temperature resistance is also more or less related to the type, taking the strong low temperature resistant species "Kemba No. 1" spinach as an example, not only has strong cold resistance and disease resistance, but is also often planted as a species for overwintering, but the defect is that the high temperature resistance is weak. After spinach is planted, the growth rate is particularly significant under the conditions of 80% to 90% relative humidity of the air and 70% to 80% soil moisture.

According to the planting observations, spinach grown in sandy soil was significantly better than spinach grown in clay soil.

The seedling stage of spinach is in the season of continuous high temperature and little rain, and the soil moisture content should be suitable. As the spinach plants grow slowly, we need to reduce the frequency of watering, maintain the moisture of the soil layer as the standard, prohibit flood irrigation, and pay attention to the drainage pipes after rain. After continuous rainfall, if it suddenly becomes sunny, in order to prevent the spinach physiology from being dehydrated and causing the leaves to curl, we should water it every morning and evening to reduce the temperature.

When the spinach enters the full growth period, the plant uses a lot of water, so we need to inject water immediately according to the soil moisture.

When making zongzi, you must pay attention to the condition of the soil, you need to choose the right variety according to the right soil for planting, under normal circumstances, it is planted in the spring, and it can be harvested in a few months.

Spinach can be planted all year round, but it is necessary to choose a plot with loose and fertile soil, good drainage and irrigation conditions, and good slightly acidic loam soil for planting, the planting method is scattering, and the seeds must be treated before sowing to sow normally, otherwise the germination rate of seeds will be affected. Generally speaking, the harvest is about 30 to 90 days after sowing.

Spinach is a kind of vegetable with obvious seasonal ratio in the previous planting, but later with the progress of planting technology and the research and development of varieties, it can basically be planted in four seasons, but it is best to choose the middle of March to sow in spring, and the temperature change in summer is more obvious, so it is to sow in batches, so that the yield will be a little higher, so the first batch is sown at the beginning of May, the second batch is sown at the end of June, and the third batch is sown in early July. In autumn, sowing can be carried out throughout the season, and in winter, sowing can only be carried out in November, otherwise it will freeze to death, so there is the most suitable time for planting every season, so be sure to grasp it. Spinach, also known as Persian cabbage, red root cabbage, parrot cabbage, etc., belongs to the genus Spinach in the Chenopinoa family, an annual herbaceous plant.

The leaves are halberd-shaped to ovate, bright green, tender and juicy, slightly shiny, entire, or with a few tooth-like lobes.

Spinach is sown in March in spring, May and July in summer, and August and September in autumn.

Spinach can be grown all year round, with a short growth cycle and a quick harvest. It can be sown in spring when the temperature is above 5, usually in spring in March, and can be harvested after 40 daysIn summer, sowing can be done from May to July;In autumn, it is sown in August and September, and the overwintering spinach can be sown in October and November, and it can be harvested around the Spring Festival. In short, seeds can be sown at the right temperature.

Sowing spinach way:

1. Fine-grained land

Plough the land, choose a loose and fertile soil, good drainage section, apply 4000 kg of rotted organic fertilizer per mu, add 40 kg of superphosphate, mix soil and fertilizer, and finely prepare the land to make a field furrow. It is suitable for flat furrows in summer and autumn, and high furrows are suitable for winter and summer, and can be made of meter-wide furrows.

2. Sow seeds and raise seedlings

The seeds can be soaked in water about a week before sowing, fished out and cleaned after 12 hours, placed in the environment of 4 and waited for 24 hours, and then placed in the environment of 20-25 to promote germination, and can be sown after germination in 3-5 days. After watering, sow the seeds and cover them with fine soil.

After sowing in summer and autumn, use a small arch shed, put on a shade net to avoid direct sunlight, and sowing in winter needs to be covered with plastic film for insulation and cold resistance, and the film can be removed after the seedlings emerge.

3. Leave seeds for harvesting

The plant can be harvested when it grows to more than 10 cm, and the spinach used to keep the seeds should be controlled in the water during the budding period, and the male plant can be pulled out after the male plant bears seeds.

1.Sowing seeds and raising seedlings. The method of cultivation of spinach is spreading.

Before sowing, soak the sown sails in water for 12 hours. After soaking, they are kept in the refrigerator for 24 hours. After taking it out, it is placed in an environment with a temperature of 20-25 degrees Celsius to call for cleft buds.

After germination, it is ready to be sown. 2.On-site management.

Spinach has a strong growth ability and can grow on its own as long as it emerges. However, in order to ensure the yield, it is necessary to thin the true leaves when they grow, and at the same time, they can be weeded in time. 3.

Spinach can be grown all year round. Because of its different planting time, it can be divided into four varieties: spring, summer, autumn and winter. These four varieties have different light intensities and durations.

Spring spinach is planted in early spring March. Sowing can be done when the temperature rises by more than 5 degrees Celsius in spring, and harvesting can be done 1 to 2 months after sowing.

How to grow spinach:1. Sow seeds and raise seedlings

The spinach planting method is to spread, soak the seeds in water for 12 hours before sowing, put them in the refrigerator for 24 hours after soaking, take them out and place them in the environment at a temperature of 20-25 degrees to germinate, about 3-5 days to germinate, and after germination, you can sow seeds. In order to ensure the yield, sow about per mu, water once after sowing, cover the soil 2-3cm, keep the soil moist, and the seedlings can be planted in about a week.

2. Field management

Spinach has strong growth ability, as long as it emerges, it can grow on its own, but in order to ensure the yield, it needs to be thinned when it grows true leaves, and the seedlings can be weeded in time at the same time. Grow 3-4 true leaves can be watered with thin fertilizer once, and should not be too thick when fertilizing, so as not to cause root burning and death due to excessive fertility.

Spinach, the name of traditional Chinese medicine. Spinacia oleracea L. for the genus Spinach in the Chenopodaceae familyof the whole grass.

Native to Iran, it is widely cultivated throughout our country. It has the effect of detoxifying fever, clearing blood and veins, and benefiting the stomach and intestines. It is often used for imitation blind headache, dizziness, redness, night blindness, thirst, constipation, hemorrhoids.

1. Seed selection and germination: varieties such as round-leaved spinach or large-leaf spinach with strong heat resistance, easy germination and strong disease resistance should be selected. First break the shell and add a new high-fat film to soak the seeds for 12 24 hours (to improve the germination rate), and then put it at a temperature of 2 4 for low temperature germination, to turn the seeds frequently, keep them moist, generally after 4 5 days can germinate and sow.

2. Timely sowing: spinach planting can be divided into spring sowing, summer sowing, autumn sowing, and overwintering spinach, which is generally sown. Before spring sowing and autumn sowing, the seeds should be germinated, soaked in clean water first, then placed at a low temperature for a day, and then placed at a temperature of about 20 degrees for germination.

Spring-sown and overwintered spinach can be sown directly. Choose loose and fertile soil before sowing, and be sure to apply sufficient basal fertilizer.

3. Later management: after spring sowing, it should be covered with plastic film for insulation, and it can be changed to an arch shed after emergence, and it can be uncovered when the weather is good to let it see more sun. Summer sowing should pay attention to high temperature, you can choose to cover the shade net, to achieve the effect of cooling, and water frequently in the morning and evening.

Nitrogen fertilizer can be applied once after the autumn seedlings grow leaves, and the soil should be moistened after winter sowing, and the temperature should be kept warm when the temperature is too low.

Precautions for spinach planting

1. When spinach is planted, the soil should be slightly tidied up, and when the soil is tidied up, some coal ash or coarse sand should be sprinkled on the side of the land, which is to increase the permeability of spinach during growth, because the root system of spinach is relatively coarse when it grows in the later stage, so we should choose such soil.

2. When processing seeds, the seeds should be soaked in water for a day, and then the seeds should be taken out, wrapped in gauze, and sown again every two days, but during this period, the water should be changed every day, and the temperature should be kept between 25 degrees and 30 degrees.

Choose loose and fertile land with good water and fertilizer retention, and good drainage and irrigation.

Seeds: Choose healthy, resistant spinach seeds, soak them in clean water for 12 hours, then remove them and place them in a warm environment to germinate.

Usually choose loose and fertile soil with water and fertilizer retention, apply sufficient base fertilizer and then level the furrow, and sow the seeds into it. After sowing, it is necessary to water enough, then lightly rake the topsoil, bury the seeds, and cover with a layer of plant ash, and pay attention to shading in summer and autumn.

Prepare the land for furrowing. To grow spinach, it is usually necessary to choose loose and fertile, water and fertilizer retaining land, good drainage and irrigation, and in order to improve the fertility of the soil, it is necessary to fertilize it when preparing the land. Usually 4000 kg of organic fertilizer per mu, 40 kg of superphosphate, after fertilization needs to be leveled for furrowing, winter and spring to do high furrowing, summer and autumn more use flat furrow, the width of the furrow is meters.