Choy sum is very popular in the market, what kind of techniques do you need to master to grow it?

The length is only, there are many varieties of cabbage, now it belongs to winter, cabbage is the easiest to moss and flower, the vegetable field must first apply sufficient base fertilizer, sowing is almost more than 40 days or so to pick up, seedlings transplanting can pick cauliflower in more than ten days, the temperature should be 25 30 during the management period; The temperature required for the leaf growth period is slightly lower, the suitable temperature is 15 20, the growth is slow below 15, and the growth is more difficult above 30. The suitable temperature of the formation period of rapeseed is 15 20, when the day temperature is 20 and the night temperature is 15, the rapeseed sprout develops well, and can be planted in the environment of about 28, and the most suitable temperature for growth is 15 25.

<> planting Guangdong cabbage can be cultivated in a large area of canopy film, so that it can be planted and grown all year round. Similarly, in the north, it can also be planted with canopy film, as long as the vegetables are sweet and crisp and the moss is neat. If these seeds are sown in winter and spring, the cabbage will not only be as slender as a toothpick, but will also eat like old grass, thick and scum, and completely lose its commodity value.

On the contrary, the seeds of cabbage in winter and spring are like 60 or 80 days old, and the cabbage sum is a genus of Brassica in the cruciferous family.

One- and two-year-old herbaceous plants. It is suitable for cultivation in the warm regions of the south and is one of the specialty vegetables of the south. It can be sown all year round, and is called "after the dish" by consumers.

It is also suitable for cultivation in colder climatic conditions, and the root system is not deep, and there are many small hairy roots. 5-8 days after sowing cotyledons, 14 to 18 days is the seedling stage, the germination stage and seedling stage growth temperature is best 25-30 degrees, 7-21 days to the leaf growth period. When it comes to the formation period of cabbage, the most suitable temperature is a specialty of Guangdong and Guangxi, which can be planted all year round, with a short growth cycle, crisp and tender quality, unique flavor, rich nutrition, and my family basically fries a plate every day.

The amount of seeds per mu is 6-10 dry grams, sowing is generally sown with strip sowing, the row spacing is about 27 cm, the plant spacing is about 17 cm, each hole accounts for 3-4 grains after sowing and watering after covering the soil, 7-9 days can be seedlings, but also sown.

1. Preparation before sowing Generally speaking, the production effect of choy sum is best in the summer when it is high temperature and rainy. However, at this stage of production, it is often accompanied by heavy rain, so it is difficult to compare top dressing. Second, after the seedlings of the low flat shed are built, the shade shed should be shaded and cooled in time to prevent the seedlings from dying.

3. Fertilizer and water management 1. Fertilization. Choy sum has a shallow root system and poor absorption capacity. In summer and autumn, cabbage grows quickly and grows quickly, so it needs a lot of nutrients.

2. Watering, watering can not only replenish the water of the soil, but also reduce the surface temperature of the cabbage sum and the temperature of the soil.

Planting cabbage needs to soak the seeds in clean water for a day, and then take out the wet cloth above it for 3 days before sowing, it is best to choose the spring and autumn season, open a 10 cm trench in the field, put the seeds in, water until the soil is moist, and apply some liquid fertilizer in the growth stage.

The seedling period of autumn cabbage is the season of high temperature and rain, which is prone to drought and waterlogging. The nursery should choose loam or sandy loam soil with high and dry terrain, ventilation and coolness, fertile soil, easy drainage and irrigation, and avoid cruciferous crops in the previous crop. 3000 kg of fully decomposed organic fertilizer is applied per mu, and the soil and fertilizer are mixed evenly, raked flat, and made into a flat furrow.

To grow choy sum, you should choose the variety of choy sum according to the local climatic conditions and cultivation season. It is mainly caused by the different temperature inductions of different varieties of cabbage with different attributes. Under the same low temperature conditions, the more early-maturing varieties are more likely to pass the vernalization stage.

Choy sum has a wide range of adaptation to temperature, and can be cultivated under the condition of average temperature of 3-28, but there are obvious differences in the adaptability range of varieties with different ripeness to temperature. The formation period of cabbage sum is about 15 (day temperature 15-20, night temperature 10-15) is optimal.

<> cabbage sum is simple to grow, has a wide range of adaptability, does not have strict requirements for temperature and light, is cold and heat resistant, and can be planted in an environment with an average monthly temperature of 4-28. The suitable temperature for seed germination and seedling growth is 25-30, and the appropriate temperature for leaf growth and rapeseed formation is not strict, and the average temperature is 10-28 degrees Celsius to grow smoothly.

Under the same low temperature conditions, early-maturing varieties of cabbage sum are easy to undergo vernalization, while late-maturing varieties need a longer time to vernalize. In the actual planting, due to the underdeveloped root system of cabbage, the old seedlings are transplanted with too many injured roots, the recovery growth is slow, and it is easy to sprout in advance, so the seedling age should not exceed 30 days, generally in 20-25 days.

The seedbed should be sandy or loam, with plantar fertilizer. The sowing amount of seedbed per mu is about kilograms, and the seedlings raised can be planted on 7 8 acres of land. After the true leaves, appropriate seedlings were tapped and a small amount of human feces and urine were applied in combination with the seedlings.

Due to the underdeveloped root system of cabbage, such as the seedling period is too long, the planting of cabbage can be said to be all over the country, regardless of the north and south, all provinces in the country have the choice to plant cabbage, and the growth of cabbage, the adaptability to the soil is very strong, as long as the soil is fertile, permeability is good, water and fertilizer are sufficient, you can plant cabbage and get the right time to sow seeds, cultivate strong seedlings along the Huai area generally in late August to early October. Select the seedbed (the stubble before the seedbed should avoid cabbage), apply sufficient base fertilizer, turn the soil deeply, level the furrow, the width of the furrow is 1 meter, the length is not limited, the uniform sowing is sowing, and the seedbed is sown per mu.

It should be selected according to the local climate, and it must be in a high temperature state when cultivating, and the surrounding temperature must reach a certain height so that it can be cultivated.

The method of cultivation in the open field, this cultivation method is very good, and it should be in September and October, so that the yield will increase.

The soil is deeply ploughed and whitened, and sufficient basal fertilizer is applied. The base fertilizer is generally 1000-1500 kg of decomposed organic fertilizer and 5-10 kg of potassium sulfate per mu; or 750 kg of chicken manure and 20 kg of compound fertilizer. The furrow is generally a meter wide, 20-30 cm high, and has a turtle back shape.

The soil must be fallow for three years to allow the pesticides, fertilizers and inorganic residues in the soil to be completely degraded, and the certification body monitors the whole process. Vegetables can only be grown if pesticide residues and inorganic substances are not detected in the soil within three years. Within three years, the organic matter in the soil must meet the certification standards to grow green vegetables, soil and fertilizer management is mainly to pay attention to whether the soil residue problems are up to standard, if the soil is not a problem, the fertilizer used is mainly organic fertilizer, supplemented by chemical fertilizer.

<>First of all, the land should be renovated and loosened, sprinkled with the medicine to prevent and control land pests, if it is a small area of their own vegetables to eat, it is recommended to use fermentation to prepare good farm fertilizer, large area planting, the first choice is organic farm fertilizer, if not, detect the lack of urea in the soil or others, what is lacking and what to make up for as much as possible to apply fully decomposed organic matter fertilizer. For example, the straw and green manure of various crops are accumulated and fermented at high temperatures to make farmhouse fertilizer, as well as the manure of animals such as pig manure, chicken manure, and cow manure after decay. Fertilization:

Find out the soil nutrient status and soil type of the park, refer to the law and characteristics of crop fertilizer demand, consider the fertilizer utilization rate, pay attention to the bottom fertilizer, and moderate top dressing; Adjust the dosage and proportion of a large number of elements, especially during the critical period of the growing season;

If the soil meets the specifications, then the fertilizer input at the time of planting is first the national standard for fertilizer, and then fertilized based on the needs of soil testing and crop target yield. The most important thing should be the soil problem, to detect whether the soil is up to standard, since it is a green vegetable, the use of chemical fertilizers and pesticides must be scientific and reasonable. In the process of growth, it should be taken care of scientifically and reasonably.

The early-maturing variety of choy sum was sown in April and August, harvested 35 to 45 days after sowing, and the picking period was May and October; Ripe varieties of cabbage, sown in September and October, harvested 40 to 50 days after sowing, and harvested in October and December; Late-maturing varieties of cabbage, sown in November to the following year in our cabbage is also more popular with many people like to plant, there are several varieties of cabbage, in our place to plant more cabbage heart, there are also called vase vegetables, in our cabbage is generally a vase of cabbage after flowering, planting this.

Very welcome. When planting, we must do a good job in the management of water and fertilizer, and we should also spray some pesticides in time to avoid being harmed by insect pests, and we should also choose some varieties with better quality.

1. Sow seedlings and apply sufficient organic fertilizer. Before sowing, water the ground and sow it. Due to the small size of the seeds of cabbage, it can be mixed with 3 4 times of fine soil or river sand when sowing and mix well.

After sowing, cover a thin layer of fine fluvial soil Second, planting Before planting, 3000 kg of rotten organic fertilizer is applied per mu, and raked flat after deep ploughing Third, field management Top dressing is mainly fast-acting nitrogen fertilizer, and it is applied twice every 5 7 days, and 5 10 kg of urea per mu is applied each time Fourth, pest control Diseases are mainly downy mildew, soft rot and virus diseases. Downy mildew can be controlled with 75% chlorothalonil or Prict spray.

Pollution-free cabbage sum is very popular in the market, the first to ensure sufficient sunlight, the second to ensure sufficient moisture, the third can not be pesticides, the fourth to prevent pests and diseases, the fifth planting spacing can not be too small.

The first point is to choose the kind of breed with a good reputation, which is very good, and the second point is to choose the kind of breed with a high survival rate, then it is very good, and you should pay attention to these things when choosing people.

No. 19 Sijiu Caixin is bred by Guangzhou Vegetable Research Institute of Guangdong Province. The plant is compact and has strong growth potential. The basal leaves are semi-erect, the leaves are long ovate, blue-green, and the petioles are short.

4 5 leaves begin to sprout, the main sprout internodes are sparse, the sprout is 18 cm high, light green, shiny, and the single sprout weighs 35 grams.

Large-scale planting should be selected Sijiu cabbage, the quality of this variety is particularly good, and the yield is particularly high, and it is also easy to take care of.

Varieties that are not easy to flower, because of the season, there are still some deficiencies in temperature control, choose some that are easier to plant.

The cultivation method of large demand and high yield is to apply plantar fertilizer, after the true leaves, appropriate seedlings, and a small amount of human feces and urine should be applied when thinning seedlings. Timely planting, when the plant buds, apply 1 time of fast-acting nitrogen fertilizer.

The demand is relatively large, and high-yield cultivation needs to choose high-yielding varieties, fertile land, suitable climate, and provide it with sufficient water and fertilizer during the cultivation period, so as to make the cabbage sum high-yield.

The demand for choy sum in the market is quite high, and choy sum is an ordinary vegetable, which is acceptable to every household. If you want to have a high yield of cabbage, you can't lack fertilizer in the cultivation process of cabbage, you must ensure that cabbage has enough nutrients, and the spacing between the rows of cabbage can not be too close.

Stir-fried choy sum is a very delicious and simple home-cooked dish, so the market demand is very high. High-yield cultivation is mainly due to water and abundant sunlight. In this way, the choy sum will grow tender and fast.

Choy sum can be broadcast live, and seedlings can be transplanted, but seedling transplantation is suitable. The seedling time of vegetable hearts is usually 18-25 days, and the late-maturing varieties do not exceed 30 days. Early maturing varieties have a shorter time.

Winter and spring seedlings have a long low temperature time, after soaking in warm water for 4 hours, wrap them in a damp cloth, keep them moist, germinate at the right temperature, and then sow seeds until the seeds are peeled. Early-maturing varieties and medium-maturing varieties are sensitive to temperature and develop quickly. Early development should be prevented at the seedling stage, and late-maturing varieties have strict temperature requirements, so they should be sown in a timely manner, and they should choose sunny and warm weather when sowing, and do not sow in cold snaps or cloudy days.

Sowing seeds at this time will produce cold shoots, and the seedlings will bloom too early, and the plants will become fragile if they are harvested early. In summer and autumn, there is a lot of high temperature rain on the mother meat, and the mother meat should be shaded by a plastic greenhouse to protect from the rain.

In early spring, saplings should be given less, and in summer and autumn, small water should be given frequently. One to four or five true leaves, the leaves are intact. The leaf oil green petiole is blue-green when it grows vigorously and has proper development.

At this time, a certain amount of vegetative area and a certain development foundation are the most timely period for the main meal. The colonization of the vegetable mind is the key to the success or failure of planting. Reasonable dense planting is the basis for increasing yield, early maturing varieties should be planted densely, and medium and late maturing varieties should be appropriately rare.

Plum dense plants with narrow leaves and small swelling, and Li Ji plants with round leaves and large plant degrees. The spring river growth environment is out of date, so it should be close, and the autumn growth environment should be negligent when the growth environment is suitable. The things that can only be obtained by the main push are very dense, and the main side can rarely get them.

Avoid heavy rain when sowing, cover the mass with straw or decaying organic matter after sowing to prevent rain erosion and keep the seedbed soil moist. After a small number of seeds have germinated, the mulch can be removed. According to the actual situation of the distribution of vegetable myocardium, fertilization is applied according to the habits such as absorption area, absorption capacity, and growth rate.

Generally, the corrosive and delicate texture of the swamp is used as the base fertilizer. During the formation of vegetables in autumn, phosphorus and potassium fertilizers should be appropriately applied to improve soil fertility and effectively improve the quality of vegetable planting through fully fermented biogas slurry. Vegetable myocardium is relatively shallow, the leaf area in the middle and late stages is large, and the yield is increased in high temperature weather, so it is necessary to keep the soil moist throughout the growth stage of the vegetable heart, water frequently, avoid flooding, and discharge the soaking water in time on rainy days.