What kind of environment is suitable for growing lettuce

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When planting lettuce, you need to choose the right time, lettuce likes to grow in a cold environment, so it is recommended to plant it around April every year. Most of the northern regions are mainly cultivated in spring, and the planting time in South China should be selected from September to December, and if it is planted in a greenhouse, it can be planted all year round.

Lettuce seeds are neither cold nor heat tolerant, and the seeds can germinate in an environment of about 4 in a local environment of about 4 compared to low temperatures, and almost do not germinate above 30. If the temperature is consistently higher than 25, the growth of lettuce will deteriorate, and the leaves will be coarse and old, affecting the taste.

Lettuce is suitable for growing in loose, fertile and well-drained soil. When planting, humus, garden soil and sand and gravel can be mixed into nutrient soil for planting. In addition, it is necessary to add an appropriate amount of basal fertilizer to the soil to increase the nutrients of the soil, so that the lettuce is more vigorous and robust during the growth process.

During the planting of lettuce, watering every 5-7 days, try to choose to water in the morning or evening, high temperature watering is not conducive to the growth of the root system. When fertilizing, it is necessary to pay attention to the use of well-rotted fertilizer, otherwise there will be a risk of root burning, usually 15-20 days to apply a rotten farm fertilizer.

1. Lettuce is generally cultivated by planting seedlings. Choose well-growing, shiny lettuce seedlings and put them in well-drained soil, press the soil lightly and water them. Keep the seedlings spacing at about 20 cm.

2. After about two weeks, top dressing is carried out, sprinkled on the roots of lettuce seedlings, and mixed with soil.

3. Lettuce should not receive too much light, and direct sunlight or lights should be kept away as much as possible, otherwise the stems and leaves will grow and the leaves will become hard, which will affect the eating. Lettuce should be done on a sunny day when removing the side sprouts, and if rain falls into the sprouts, the lettuce leaves will turn yellow.

4. When the lettuce plant grows to 25 cm, the lettuce can be harvested. You can break the edible parts and cut the whole lettuce.

5. In order to maintain the taste of lettuce, it is best to eat and pick it now. Usually, it is best to handle lettuce by hand, because the part of lettuce that has been processed with a knife is easy to change color.

Lettuce planting tips are as follows:During the whole growth period of lettuce, there should be very sufficient water to ensure the rapid growth of leaves, especially in the high temperature season, it must not be too dry, especially for lettuce, when there is a lack of water, the taste of the leaves will be bitter. Generally, it is necessary to water once every three or four days, the root system of lettuce is relatively shallow, when watering, can not be watered in large quantities, in order to prevent the root system from being harmed, soft rot occurs, the humidity in the field is large, and the leaves are also prone to downy mildew, so it is necessary to water with small water frequently, water evenly, and avoid high temperature watering at noon.

Green leafy lettuce has a high demand for nitrogen fertilizer. If nitrogen fertilizer is lacking, there will be more fiber in the leaves, the growth rate will be slow, the leaves will be fewer, the plant will be short, and the yield will be low. Lettuce, too, needs enough nutrients to grow.

Planted in a small vegetable garden, some well-rotted chicken manure can be used appropriately at the seedling stage, or less urea can be used to promote the growth of lettuce leaves and improve yield. After using the base fertilizer, in order to supplement the nutrients, potassium dihydrogen phosphate can also be sprayed during the growth period or sprayed with fermented enzymes to improve the taste of lettuce.

In order to prevent disease or sprouting, affecting the taste, lettuce should be harvested in time, and it can be harvested in about a month. Therefore, if you want to eat green lettuce, you must pay attention to the three aspects of seed treatment, water and fertilization during the planting process.

There are three ways to grow lettuce at home:

1. In fact, lettuce can be planted all year round, as long as the temperature is below 20 degrees, it can be sown at any time, and if the temperature is high, you want to plant lettuce, you can also choose some heat-resistant lettuce varieties to plant, the general lettuce is very suitable for sowing in autumn, so that it will continue to grow in winter.

There are many types of lettuce, some are smaller, some can form balls, some have larger leaves, some have a better taste, and some purple-leaved lettuce, and the planting methods are similar.

2. As for the choice of lettuce planting tools, as long as it is a container that can be loaded into the soil, it can be planted, pay attention to flower pots or other containers, foam boxes, empty oil drums, and there must be drainage holes, otherwise the growth is not good, and it is easy to yellow leaves, because the potting soil is easy to accumulate water.

It is recommended to use some plastic long pots, so that you can plant a lot of seedlings, and it is easy to place, plant a few pots on the balcony, more neat, clean and beautiful. You can use ordinary garden soil for potting soil, and if you don't want to buy soil back, you can also mix soil yourself.

It is to add some fertile humus to the soil, or add some well-rotted organic fertilizer, chicken manure, sheep manure, etc., to increase the fertility of the soil, and continue to provide nutrients for lettuce seedlings.

3. Before sowing, make the potting soil looser, softer, pinch the potting soil by hand, it will not form a clump, if the seeds are sprinkled unevenly, you can mix them with the sand, sprinkle them in the pot, sow them for the first time, try to sprinkle a little less seeds, and be even.

Then water thoroughly and put it on the balcony in a well-lit, ventilated place with a temperature of about 20 degrees, and the germination rate will be very fast. After germination, when three leaves generally grow, if the seedlings are too many and too dense, you can pull out some, or wait until the seedlings grow up again, you can transplant some seedlings.

The transplanted lettuce seedlings will grow better, and the transplanted and untransplanted seedlings are completely different, and the transplanted lettuce will grow particularly lush and the leaves will be larger. In short, the spacing between seedlings should not be too small, otherwise they will not get enough nutrients and sunlight, and the growth will be poor.

After germination and seedling, it is necessary to increase the light, after growing up, it is necessary to supplement some fertilizer, which must be fertilized, you can pour some cake fertilizer water, or sheep manure soaked in water, watered in the pot soil, there is really no organic fertilizer, you can give some compound fertilizer or chemical fertilizer, no fertilizer must not grow lush, and at the same time watering should be timely, the potting soil is too dry, and the lettuce leaves are not watery enough.

Only sufficient fertilizer and water and light can make the leaves more delicious and taste better. Lettuce is very easy to grow, you will know if you have planted it once, and the balcony has become a world of lettuce, and it has become a beautiful and vibrant little vegetable garden, and you can eat the freshest lettuce.

Lettuce growing

1. Land preparation.

Before planting lettuce, the land should be prepared to ensure that the plot is soft and has a certain fertility. The ground should be turned over once, and then the well-rotted farm manure should be applied to improve the fertility of the plot. The treated plots should also be watered thoroughly.

If you are planting in a pot, you should prepare pots that are breathable, permeable, and fertile in the soil, and the size of the plant.

Second, sow seeds into the soil.

Lettuce seeds do not need to be treated before planting and can be sown directly. The sowing method is very simple, directly sprinkle its seeds evenly on the surface of the soil, then cover it with a thin layer of soil, and gently press it by hand. Seeds need water to germinate, and after planting, spray water with a watering can to make the soil slightly wet.

Be careful not to water too much, otherwise the seeds will be easily washed out.

3. Post-maintenance.

Lettuce seeds like light and need to be exposed to the sun after planting. The bonsai is moved to a place with good lighting, and there is more light. When you find that the soil is white, you should also water it in time, and water it thoroughly every time. If managed properly, it will sprout quickly.

Fourth, seedlings transplanting.

After the lettuce seedlings grow 3 true leaves, you can give it seedlings, and pull out the small seedlings that are too weak to reserve enough space for it to grow. After the seedlings, the plant spacing of lettuce seedlings is best about 5 cm. The uprooted seedlings can be eaten directly, or transplanted and replanted.

Lettuce growth habit Lettuce is an annual or biennial herbaceous plant. It is neither cold nor heat tolerant and prefers shelter from the shade. The growth period is shorter, 90-100 days.

It is best to use fertile sandy soil for cultivation. The shape of lettuce is 25-100 cm high. Its root system is well developed, but the root system grows shallowly and the stem is erect.

Its stems and branches are white, the basal leaves and the lower stems and leaves are large, unlobed, inverted-lanceolate, elliptical or elliptic-lanceolate. Lettuce grows in cool conditions and is a hardy vegetable. Not suitable for growth in high temperature environments.

The temperature can be controlled above five degrees after sowing, but the optimal germination temperature for lettuce is between 18 degrees. In addition, if the temperature at the time of germination is higher than 30 degrees, the germination rate of lettuce will decrease. Lettuce growth processLettuce needs to go through four stages:

Germination stage, seedling stage, cluster stage, heading stage.

1. Germination period:

Lettuce takes about 8-10 days from seed germination to leaf development. Lettuce germinates when the temperature is below 15; When the temperature is higher than 25, the seed germination rate decreases significantly.

2. Seedling stage:

Lettuce has five leaves from the true leaf to the first leaf sequence, commonly known as the surrounding tree. This time takes about 20-25 days, and the suitable temperature for growing at this time is 16-20.

3. Rosette period:

After the lettuce seedling stage is over, its heart leaves begin to roll up, which takes about 15-30 days. At this time, the optimum temperature for growing plum balls is 18-22, and the leaf area of lettuce begins to increase during this period.

4. Ball Setting Period:

Lettuce heart leaves are quickly rolled into fat leaf balls, which take about 35-40 days. After that, it's ready to go on the market. Potted lettuce cultivation points.

Temperature. When potted lettuce is cultivated, it is best to adjust the temperature to about 15-20 degrees Celsius, and cool down quickly when the temperature is high.

Apply stove chain fertilizer. Lettuce grows faster during the growing season. At this time, it needs a lot of nutrients, so it is necessary to fertilize it in time. Organic fertilizer can be applied.

Light: Lettuce should be pickled with enough sunlight. It can only grow well if it sees enough sunlight, but the sunlight should not be too strong and will make the lettuce leaves yellow.

1. Soil: To plant lettuce, you need to choose loose, fertile and breathable soil, and the soil needs to be disinfected and deepened before planting, and an appropriate amount of base fertilizer needs to be applied to the soil. 2. Seed selection:

Growing lettuce requires selecting healthy, plump seeds, soaking them in soil water for a while, and then removing them and placing them on a damp cloth to germinate. 3. Planting: Evenly spread the processed lettuce seeds in the soil, and then cover with a thin layer of soil.

The growth habit of lettuce

Lettuce is a one-year high-branched or two-year-old herbaceous crop, the leaves are long obovate, densely packed into cabbage-like leaf balls, can be eaten raw, like a cold and cool environment, neither cold-tolerant, but also heat-resistant, the suitable temperature for growth is 15 20, the appropriate temperature for germination is 18 22, and almost no germination when it is higher than 30.

Lettuce has a well-developed root system, wax on the foliage, and strong drought tolerance, but it is cultivated on fertile and moist soil, with high yield, good quality, and suitable soil pH value, and is widely cultivated in various parts of China.

Lettuce is a light-loving plant, it needs to be maintained in a sunny environment, the light is not enough to grow poorly, when the light is strong in summer, it needs to be shaded appropriately to avoid sunburn.

Lettuce is grown as follows:

1.Prepare the planting site: Choose a well-drained, fertile soil environment and make sure the drainage system is good.

3.Watering: Keep the soil moist and water every 2-3 days.

4.Fertilization: Apply well-rotted organic fertilizer at 500-800 pounds per acre with fertilizer.

5.Light: Stay in the sun, every 4-5 hours.

6.Harvesting: When the lettuce grows to 15-20 cm tall, it is ready to be harvested

Lettuce is grown as follows:

1. Sowing: Shoot next to usually raise seedlings first, lettuce seeds are too small and too light, need to be accompanied by fine sand, stir evenly in a container, and then sprinkle on the soil, cover the soil centimeters, a thin layer, 15 20 degrees about 3 5 days germination temperature is higher than 25 degrees when it is difficult to germinate, summer planting needs to be germinated, the seeds are soaked for 1 night, and then wrapped in wet gauze, put in the refrigerator (about 5 degrees), about half of the seeds are exposed and then sown.

2. Seedling stage: change the belt to keep the soil moist, not dry, and keep the soil permeable. 2 3 true leaf time seedlings, 5 8 cm from the kernel reed.

3. Transplanting: When the seedlings grow to 5 or 6 true leaves, they should be watered thoroughly before moving, and the soil on the roots should be moved to a large pot together. Loose leaf lettuce plant spacing 15 cm, fruiting 30 cm. Water thoroughly, put it in a cool place in the summer to slow down the seedlings, and the roots will stand firm in about 1 week, and the sun will shine normally.

4. Fertilization: apply fertilizer once a week after transplantation, and then apply organic fertilizer or compound fertilizer of whole nitrogen, phosphorus and potassium once after transplantation 2 weeks and 4 weeks after transplantation. Stop fertilizing 2 weeks before harvest.

5. Watering: Watering in the morning and evening at high temperatures, it is better to water a small amount frequently, but avoid waterlogging, suitable for water control in the early stage of growth, and keep it moist.