First, sowing temperature
Doll food is a variant of Chinese cabbage, both of which are semi-cold-tolerant vegetable plants that are resistant to light frost and are not resistant to frost. The most suitable average temperature for growth is (175)°C. The average temperature is higher than 25°C. It grows poorly. Below 10°C, it grows slowly. In the short term, 0～2°C, although the cold temperature can be recovered by freezing, the long-term growth is below -2°C. In case of freezing injury, the sowing temperature should be in the range of 10 to 25°C. Early spring sowing of mulching film can increase ground temperature and early sowing so as to achieve early sowing of the morning market.
Second, species selection
The color of the doll leaf heart is roughly divided into two types: white heart and yellow heart, and the color of the road variety can be selected according to the market demand. The dry matter content of baby foods with general color varieties is relatively high. To choose a better cold-resistant varieties of anti-convulsions, the market supply of more varieties of anti-convulsions, such as Gao Li Yu doll, mini star, pearl doll food, etc.; autumn species of baby food on the species is not very strict, but the summer sowing must choose Good resistance to heat, early on the disease-resistant varieties such as Gao Beibei, heat 55 varieties. Today, the market's baby food is best produced in Korea, "Korea Babe" and "Korean Golden Doll", and domestic doll dishes are not comparable to Korean baby food from any point of view.
Third, do the earthwork
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 selected. The sandy loam or clay loam suitable for drainage and irrigation is appropriate.
1, due to a short growing period, we must pay attention to the use of basal fertilizer, should fully apply the decomposed organic fertilizer, apply 10 to 15 kg of compound fertilizer per acre as a base fertilizer. Calcium-deficient or soil-alkaline areas can increase the application of 15 ~ 20 kg of superphosphate to ensure the absorption of calcium.
2, baby food can be ridged, can also be made. The spring and autumn seasons should be done for the sake of saving time and labor; summer should be suitable for ridges and drainage, and the width should be 1 to 1.2 meters. Sowing and planting In the case of protected facilities, sowing can be done all year round. 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.
3, baby food can be broadcast live, but also transplanting seedlings. In the spring and autumn season where the climate is more suitable, the seeds can be sown accurately, that is, 1 to 2 seeds per hole, 2 seeds per hole, 1 seed per hole, and 1 seed for cross-demanding. The amount per mu is 100 to 150 grams. Transplanting seedlings should be carried out in the 3rd leaf stage of the seedlings, with a spacing of 2030 cm. Canola is a small plant type medium and high density leafy vegetable varieties, seed weight is generally 3 to 3.4 grams, live seed per acre 80 to 100 grams, transplanting 50 grams. The number of plants per acre is 8000-10,000, and the spacing is 20 cm and 30 cm. Live or seedling transplanting can be. Live laborers are suitable for large-scale planting, but they use large quantities.
The advantage of seedling transplanting is that, first, planting in early spring can be sowed about 20 days earlier, that is, first planting seedlings in the protected land, planting in the open ground after the earth warms up, and planting in the open ground, which can grab the morning market; second, the advance seedling can reach the height of time. The purpose, but more laborious. Doing the form depends on local customs. In the north, small sorghum plants are used.
Fourth, plant management
The management of baby food is relatively simple. It takes 2 weeks after sowing and seedlings, seedlings, seedlings, and weeds to be removed. Instead of seedlings or seedlings for only 1 week, we can enhance fertilizer and water management to promote growth. To keep the soil moist, but do not collect water, in the rapid expansion of the plant (ball stage) topdressing 10 kg of urea per acre. Fertilizer management applies 500 kg of organic fertilizer per acre before sowing. Before and after emergence, keep the soil moist. Be sure to loosen the soil before packing and increase the permeability and protection of the soil. After filling the heart, make up the water and make up for the growth. Seedlings, seedlings, seedlings, and live seedlings should be seeded and seedlings should be planted in time; seedlings should be planted in 3 to 4 leaves when transplanting seedlings in order to avoid root damage when the seedlings are transplanted too large.
V. Pest control
The cultivation of baby vegetables is seriously harmed by the diamondback moth, especially in spring sowing should pay attention to the use of drugs in the early stage of young larvae control. The use of agents: 1.8% avermectin EC 2500 ~ 3000 times; 2.5% dish suspension agent 1500 ~ 2000 times; 5% pyrethrin EC 1000 ~ 1500 times; 2.5% Uranus EC 1000 ~ 1500 times; 10% Divided EC 1200 to 1500 times. Doll vegetables have a short growth period, strong resistance, and generally no pests and diseases. If pests and diseases are found, they can be controlled by reference to ordinary cabbage diseases and insect pests.
6. Harvesting
When the whole plant height is 30 to 35 centimeters and the ball is compacted, it can be harvested. When harvesting, the whole plant should be unplugged, remove excess leaves, flatten the base, and package it with plastic wrap.
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