Doll vegetable cultivation techniques

1. Introduction of varieties:

The baby food generally has a growth period of about 50 days. The commercial ball is 20cm high, 8-9cm in diameter, about 200g of net vegetables, and the suitable temperature for growth is 5°C-25°C. It is vulnerable to freezing injury below 5°C. Loose or unable to hold the ball, more than 25 °C is susceptible to viral disease. The baby food is thin, tender and delicious, and it is welcomed by the market because of its small edible rate.

Due to the fact that the baby food is less on the ground, the root system is smaller than the ordinary cabbage. The fertile soil should be chosen. It is advisable to drain the sandy loam to the clay loam. Due to the short period of fertility education, pay attention to the use of basal fertiliser, and fully apply the organic fertilizer to compost. Use 10-15 compound fertilizer per acre as the base fertilizer. Calcium-deficient or soil-alkaline areas may be supplemented with 15-20 kg of superphosphate to ensure the absorption of calcium. Save time and labor; summer should be ridge work, conducive to drainage, a wide 1-1.2 meters.

2, the requirements of the environment:

(1) Temperature: hi-cold growth environment conditions, more cold-resistant, suitable for germination temperature of about 25 degrees Celsius, seedling stage can withstand a certain high temperature, leaf and leaf ball growth temperature 15-20 degrees Celsius, below 10 degrees Celsius, 25 degrees Celsius Above, the growth is slow, and the temperature must be above 13 degrees Celsius when sowing or planting so as to avoid convulsions.

(2) Illumination: Hi light illumination, which is a long-day crop, can pass the vernalization stage without going through a long period of low temperature, and can twitch and flower under conditions of high temperature and long days.

(3) Moisture: like a more humid environment during vegetative growth, because of its weak root system, if there is insufficient water, it will grow poorly, the tissue will harden, the fiber will increase, and the quality will be poor, but if the soil moisture is too much, it will affect the root absorption nutrients. And moisture can also cause poor growth.

(4) Soil: Soils with suitable structure, good physical and chemical properties, deep tillage, high soil fertility, and convenient drainage and irrigation are to be planted. The pH value of loam is preferably 6.5-7.5.

(5. Nutrition: The amount of fertilizer needed is large. The demand of nitrogen fertilizer is large in the early stage of plant growth, followed by phosphorus fertilizer. By the time of leaf ball formation, the demand for nitrogen fertilizer and potash fertilizer increases.

3, sowing seedlings:

Seed selection: choose a wide variety of adaptability and strong resistance. Beijing Jiya Liye Seed Co., Ltd. Asian mini yellow, orange mini, winter king mini, winter mini and other baby food. The precision of foreign seeds imported is higher than that of domestic ones. The number of grains in each package of our company's baby food is about 3,500 grains, and the cultivation density of baby food in general is 8000-10,000 strains/acre. The amount of 3-4 bags/mu is sufficient for our company, which is half the amount of other varieties.

Planting season: North China and other places are suitable for planting in spring, autumn and spring and autumn protected areas, so they should be planted in rows, harvested by stages, and listed on a balanced basis.

(1. Spring greenhouse: Nursery in mid-January, planting in mid-to-late February, and direct sowing in early February, and harvesting in mid-to-late April.

(2) Spring sheds: greenhouse cultivation in early February, planting in early March (or direct sowing in early March), harvesting from the end of April to the beginning of May.

(3. Spring dew: The live broadcast period is suitable from the end of March to the beginning of April. Seedlings are planted in the early to the middle of March. Seedlings are planted in early April and harvested from the end of May to the beginning of June.

(4) Summer and Autumn Exposure: Direct sowing in mid-August and mid-October, harvesting in mid-October.

(5, autumn and winter greenhouses: direct sowing in late September to early November, harvesting in November - February of the following year.

4, sowing and planting: In the case of protective facilities, can be sown all year round sowing. But in the spring, we must pay attention to the danger of low-temperature convulsions. In the summer, shade nets are used to shield the light from high temperatures, and insect nets are used to prevent aphids from transmitting virus diseases.

Baby food can be broadcast live, but also transplanting seedlings. In the spring and autumn season where the climate is more suitable, sowing can be done precisely, that is, sowing 1-2 seeds per hole, or 2 seeds per hole and 1 seed per hole for cross-demanding. Transplanting of seedlings should be carried out in the 3rd leaf stage of the seedlings with a spacing of 20*30 cm.

5, plant management

The management of the baby food is relatively simple. It takes 2 weeks after sowing and seedlings, seedlings, seedlings and weeds are removed. Instead of seedlings or seedlings for only 1 week, we can enhance fertilizer and water management to promote growth. To maintain a sudden moist, but do not collect water, in the rapid expansion of the plant (ball stage) topdressing 10 kg of urea per acre.

6, harvest

When the whole plant height is 30-35 centimeters and the ball is compacted, it can be harvested. When harvested, the whole plant was unplugged, excess leaves were removed, the base was eliminated, and the product was packaged with plastic wrap.

7. Pest control

Doll vegetables have a short growing period and strong resistance. Generally no pests and diseases. If pests and diseases are found, they can be controlled by reference to common cabbage pests and diseases.

Greenhouse cultivation:

1. Sowing and raising seedlings: Planting 1 mu requires 65-80 square meters of seedbed, 30-40 grams of seed. The former stubble stubbles and weeds were removed and transported to the shed for harmless treatment. 2000 kg of organic fertilizer was sifted and sifted per acre, and fine soil preparation was made. After the leveling, it was made 6-8 meters long and 1.5 meters wide.畦 畦 播种 播种 播种 10 10 10 10 10 10 10 10 10 10 10 10 10 畦 畦 畦 畦 畦 畦. Seedlings after emergence 1-2 times, combined with cultivator loose soil, three true leaves when the Dingmiao, plant spacing 8 cm. Grasp the right seedbed temperature, during the day 18-22 °C, night 10-12 °C, 3 true leaves in time after top dressing watering, maintaining adequate light. There are 5-7 true leaves that can be planted.

2. Site preparation: The former stubble stubble plants and weeds should be removed for harmless treatment. After applying 2500 kg per hectare of cooked and finely-divided organic fertilizer, the tiller can be made into ridges and ridges with a spacing of 50-55 cm. (Sand soil is made into flat rakes), pods are 6-8 meters long, 2 rows per planting, average spacing 25-28 centimeters, plant spacing 23 centimeters, every 8000-10,000 strains, and nighttime temperature at the time of planting should be at 13 degrees centigrade. Prevent early tics. Be careful not to plant too deep and water it in time after planting.

3, field management: the use of greenhouses, greenhouse cultivation, night temperatures should be maintained at 13 °C above. In the previous period, small amounts of air were used to dehumidify and reduce the occurrence of downy mildew on a daily basis. In the middle and late period of nighttime heat preservation, special attention should be paid to cooling and dehumidification during the day. The maximum temperature during the day was maintained at about 25°C. If the open area is cultivated in a small arch, as the temperature rises, the amount of ventilation needs to be gradually increased, and the film is removed when the minimum temperature rises above 13°C. It is not appropriate to use large fertilizers and water, and the fertilizer and water should be properly controlled in the early stage so as to avoid the breeding of germs due to the high density of the air. Before the film is removed, it should not be over-watered. The water should be poured during the filling period to meet the water supply. Top dressing is carried out twice. After opening the seedlings, 500 mu of organic fertilizer or 20 kg of ternary compound fertilizer is applied to open the hole per mu. After entering the ball stage, a hole is opened again per mu, or 25 kg of compound fertilizer is applied with water. . During the growth, the leaves were sprayed with fertilizer three times and sprayed with 0.3% potassium dihydrogen phosphate plus 0.5% urea. After the seedlings are regenerated slowly and lively and after the small arch sheds and the film is removed, timely cultivating tillage is performed and the weeds are removed at any time.

4. Harvest: The longitudinal diameter of the leaf ball is about 15 centimeters, the maximum transverse diameter is 7 centimeters, and the middle is slightly thicker. When the single ball weight is 100-150 grams, it should be harvested in time. The leaf ball is too big or too tight to reduce the value of the commodity. When harvesting, the whole dish together with the outer leaves is generally sent back to the cold storage precooling, and then the outer leaves are peeled off according to the standard size of the doll food product before packaging, and each leaflet is packaged with 4 leaflets. The packaging and transport of baby food should be carried out under refrigeration conditions in order to achieve freshness preservation and longer shelf life.

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