When is spinach sown and how deep is it?

Spinach is generally sown and can be grown all year round. According to the planting season, it is divided into spring spinach, summer spinach, autumn spinach, and winter spinach. The planting of spring spinach is generally at a temperature of 5 or more, and March is a good sowing period every year; Summer spinach is generally planted in May to July; Autumn spinach is generally planted in August to September; Winter spinach is generally planted in mid-October to early November.

Spinach sowing depth of 1 cm is the most suitable, keeping the distance between seeds 8 10 cm, covering thickness of 2 cm, temperature control between 15 20, and choosing mixed soil containing garden soil, perlite, sand, humus for sowing. Water every 4 6 days in spring and autumn, every 2 3 days in summer, and reduce the amount of water in winter.

Spinach can be sown all year round, spring spinach can be sown around March, summer spinach is sown between May and July, autumn spinach is sown between August and September, and winter spinach is sown around October-November. Spinach seeds are prepared before planting, and varieties are selected according to the time of planting and the local climate, and the seeds are selected for good quality and freshness. Before sowing, in order to improve the activity of seeds and improve the germination rate, the seeds can be dried for one or two days in advance, the seeds can be soaked in warm water, and then placed in an environment of 20-25 to promote germination.

Prepare the soil. Spinach has thick roots, easy to absorb water, and has high requirements for soil, so it should be kept in suitable soil in order to grow normally. It is best to choose a soil with fertile soil and strong drainage for spinach, and mix coarse sand, coal ash, etc. in the soil to increase air permeability.

Before sowing, tidy up the soil to provide a good environmental basis for seed germination, turn the soil 20-30 cm deep, and apply a small amount of thin fertilizer.

Carry out seeding. After the seeds are processed, sow the seeds evenly on the soil surface, cover them with a thin layer of soil, cover the seeds, and pour in enough water to keep them moist. If you sow in summer and autumn, you can use shade nets and straw to block out excessive sunlight.

If you sow seeds in spring or winter, you can cover them with a film to maintain the temperature and promote seed development. After the seedlings emerge, the seedlings can be planted in time and applied thin fertilizer appropriately.

The sowing method of spinach is:Seed selection: Seeds that are full and adaptable to the local environment should be selected for spinach, and the seeds should be sterilized before planting.

Plots: To plant spinach, you need to choose a plot with a deep soil, loose soil and sunny tench, and the soil needs to be deeply cultivated for 20 to 30 cm before planting.

Spinach has strong cold tolerance, seeds can also germinate in the environment of 4, the temperature needs to be controlled between 15 and 20 during the growth period, when the outside temperature is higher than 25, the plant grows poorly, and cooling measures need to be taken.

After sowing, get some hay and dead leaves as mulch, and water it on the mulch to create an excellent small environment for germination.

We can plant flowers in our community, and we can grow vegetablesAfter soaking the spinach seeds in water, they are placed in the refrigerator for 2 days, and the seedling emergence rate is high.

My spinach was soaked for a day and a night, and it was several days earlier than the non-soaked spinach.

Spinach is also known as Persian cuisine, and its origin is more than 2,000 years ago in Persia, the end of the Southwest Silk Road. During the period of Taizong of the Tang Dynasty, China's national strength was strong, and Nepal introduced spinach seeds to China as a tribute. Spinach is an annual herb that is mainly divided into two types, spines and spines, which can reach up to 1 meter in length.

Most of the thornless spinach we usually eat, and the height of the plant is generally about 20 cm.

Dormant period: Most plant seeds have a dormant period, during which the seeds will not germinate even if the external environment is suitable. The dormant period of seeds is a self-protection mechanism of plants.

When it germinates in autumn, it is difficult for most plants to survive in winter, so in most cases, wild plant seeds germinate every two years. Spinach seeds also have a dormant period, and the dormancy period of spinach seeds is usually about 3 months, so the germination rate of new seeds in the summer and autumn of that year will be very low. The optimal temperature for spinach germination exceeds the time, and the germination is not good.

Summer and autumn spinach is sown from May, June to September, and the ambient temperature is relatively high. Especially in summer, the ground temperature tends to exceed 20, so even if the seeds are two years old, the germination rate of summer and autumn sowing will be affected to a certain extent.

Break the dormancy period and germinate at low temperatures. When sowing seeds in summer and autumn, soak the seeds in clean water for about 12 hours, and then soak them for low temperature treatment, which can be stored in 4 environments for 24 hours (this measure can break the dormant period of the seeds and put them in the refrigerator). After low temperature treatment, put it under 15 20 times, Cui Ya (can be hung in the well) 1.

Spinach can be sown all year round, it just needs to be chosen for a different variety. Choose high-temperature varieties during the high temperature period, and cold-tolerant varieties in winter. Spinach seeds can germinate in 4 years.

The optimal germination temperature is 15 20, and when the temperature exceeds 30, the germination rate gradually decreases, and it is easy to have insufficient germination and uneven germination. During this time, the soil temperature has risen to 4 5 and the seeds can germinate slowly. For early harvesting, it is possible to plant with small arcades, etc., and the sowing time can also be about 20 days in advance.

Summer spinach is sown from May to July. The temperature during this period is relatively high, and the high-temperature spinach varieties can be selected for moisture cooling by shading measures and spray measures when sowing, and the germination rate is very good. Autumn spinach is sown in August-September.

During this period, the temperature is the highest, the external environment often encounters storms, smoke and rain and other disasters, drainage and irrigation facilities are perfect, and more than 2 layers of sunshade and tents are used to prevent rain, and the sun will be exposed in the near future. In winter, spinach is low in the temperature of the planter, sowing too late to germinate, early spring begins to unearth, winter to cover with straw or cover with rotten farm fertilizer antifreeze, early spring to strengthen water and fertilizer management, extend the harvest time, harvest more spinach before harvesting.

The temperature suitable for spinach seed germination is 15 to 20 degrees, so it is generally best to sow spinach in autumn.

Before the treatment of spinach seeds, the spinach seeds are dried in the sun for 1-2 days, which can significantly improve the germination rate and reduce the incidence of diseases. In general, spinach seeds germinate fastest at 15-20 environments, with a minimum temperature of 4 and a maximum temperature of 25. Sowing in the high temperature season needs to be used well water to promote germination, put it in a cool and ventilated place to have a good effect, in the low temperature season it is necessary to increase the temperature, some people use electric blankets, earth stoves to keep warm, you can also put it into the greenhouse and warm stove next to the insulation treatment.

During the germination process, it is necessary to change the water at an interval of about 12 hours, water it with cool water in summer, and rinse the mucilage on the surface of the seeds with hot water in winter, which is conducive to rapid germination and avoiding rotten seeds. The surface of the seeds is covered with damp gauze, etc., to maintain a certain humidity. Generally, it can be sown when the seeds are 70-80% exposed.

Drying spinach seeds in the sun for 1 2 days can significantly increase the germination rate and reduce the incidence of diseases. Spinach seeds germinate fastest in an environment of 15-20 degrees, with a minimum temperature of not less than 4 degrees and a maximum of 25 degrees.

Spinach sowing time.

Spinach is also known as Persian cuisine, red root cabbage, parrot cabbage, etc. It is a pineapple early laughing plant of the Chenopodaceae family. It can be planted up to three times a year, and it is sown in August and September in spring and autumn.

Spinach sowing method.

Spinach should choose high-yield, high-quality, disease-resistant spinach varieties, make a good pool, and start to divide seedlings when they grow to a height of 5-6 cm after emergence. When the seedlings grow to about 10 cm, they are ready to be planted.

Spinach planting essentials.

Pests and diseases: The most common pests and diseases in spinach cultivation are aphids and black spots, which require timely observation and medication by growers. Watering the Leaky Landscape:

Spinach is a water-loving vegetable. Only regular watering can achieve high and stable yields. The specific watering method depends on the soil moisture.

Water every 3-7 days when soil moisture is low, 7-10 days when soil moisture is high, and 15 days when it is rainy in spring. From 2010 to 2010, spring spinach in the north was sown in January, seedlings were raised from January to March, sowing was from March to April, and harvested around June. Under normal circumstances, the yield of spinach grown in the open air will decrease, and the yield per mu is about 2000-3000kg.

Spinach is planted in the protected area in winter, and the yield per mu in early spring can reach about 10,000 catties.

1. Spinach sowing can be carried out all year round, but the sowing time is different, and its varieties are also different. Spring spinach is generally sown in March, and it is better to wait for the temperature to rise to 5 after the beginning of springSummer spinach is usually sown in phases between May and JulyAutumn spinach is made between August and September;Winter spinach is sown in October-November, mainly in hardy and late-maturing varieties.

2. The sowing time and variety are different, and the specific harvest time is also different. Sowing in the spring is usually 30-50 days before harvesting in batches. Summer sowing usually begins in late June and stops in mid-September.

If the seeds are planted in August in autumn, it takes 30-60 days to harvest, and it is usually harvested between September and October. If you plant in winter, you have to wait a long time for harvest, usually before spring.

Spinach is suitable for planting in acidic soil plots with fertile soil, convenient drainage and irrigation, and loose soil. Spinach can be planted in spring, summer, autumn and winter, and can be harvested in about 40 days. Sowing about kilograms per mu, watering once after sowing, covering soil 2-3 cm, proper watering to keep the soil moist, about a week to be seedlings, later strengthen fertilizer and water management.

First, the selection of land preparation

Choose to plant spinach in a plot with fertile soil, convenient drainage and irrigation, loose soil and acidic soil, apply foot fertilizer before sowing, apply 4000 kg of rotted organic fertilizer and 40 kg of superphosphate per mu, and then level the plot finely.

2. Sowing

1. Spinach can be planted in spring, summer, autumn and winter, and the spring planting time is after the beginning of spring, when the temperature reaches more than 5 °C, March is the best sowing time, and it is harvested about 40 days after sowing. Summer spinach is sown in May-July and harvested from June to mid-September, and in autumn it is sown in August-September and harvested about 40 days after sowing. Winter spinach is planted from October to early November, and harvested in batches after the Spring Festival.

2. First buy mature seeds, pick out the seeds that are not full, and then put the remaining seeds in clean water, soak them for 3-5 days to germinate, and then sow them after germination. Sow about kilograms per mu, water once after sowing, cover soil 2-3 cm, properly watering to keep the soil moist, about a week to get seedlings. Seedlings are needed to grow true leaves, and seedlings can be weeded in time at the same time.

3. Field management

1. The spinach sown in spring needs to be covered with plastic film, the film is directly covered on the furrow, and the film can be removed after the seeds emerge, and a small arch shed can be built. Top fertilization water, in the early stage, apply less manure to rot acquaintances, apply frequently, and apply fast-acting nitrogen fertilizer in the later stage, especially 15 days before harvest.

2. After the emergence of spinach seedlings in summer, it should be covered with a shade net, and the seedling watering should be selected in the morning or evening for small watering. After growing 2-3 true leaves, nitrogen fertilizer should be applied twice, and watered after each fertilizer application to promote growth.

3. After the autumn spinach grows true leaves, water the manure once, and carry out seedling, weeding, and top dressing after two true leaves.

4. After sowing spinach in winter, it needs to be watered in time to keep the soil moist, and chase water and fertilizer when growing 2-3 true leaves, mainly based on rotten organic fertilizer, and proper control of water after growing 3-4 true leaves is conducive to wintering.

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 sow in mid-March in spring, and the temperature change in summer is more obvious, so that the yield will be higher in batches, 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 at the beginning of 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 Chenopinaceae family, and is 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.