Doll food is a variant of Chinese cabbage, both of which are semi-cold-resistant vegetable plants that are resistant to light frost and are not resistant to frost. The most suitable average temperature for growth is (17±5)°C. The average temperature is higher than 25°C. The growth is poor. Less than 10°C, the growth is relatively slow. The short-term 0～2°C low temperature can be recovered by freezing, and the long-term growth is -2°C. The following is subject to freezing injury, sowing temperature range should be 10 ~ 25 °C is appropriate. Early spring sowing of mulching film can increase ground temperature and early sowing so as to achieve early sowing of the morning market. 1. Variety selection The color of the doll leaf heart is roughly divided into two categories: 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 food with a variety of colors is generally high. To choose the better cold-resistant varieties of anti-convulsions, the current 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 is not very strict on the species, but the summer sowing It is necessary to select heat-resistance varieties with good heat-resistance, early-onset disease resistance, such as Gao Beibei and heat-resistance 55 varieties. 2. Seeding rate and density 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 8,000-10,000, and the row spacing is 20 cm×30 cm. 3. Sowing method 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. The south generally takes 4 to 6 trips, and the northern part uses small sorghum for planting. 4. Growth period management 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. 5. Pest control In recent years, the cultivation of baby foods is seriously harmed by diamondback moths, and in particular, the use of pesticides in the early stage of young larvae should be controlled in spring sowing. 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. Selected varieties of improved varieties of Cunong Group Nitrile Coated Glove,Nitrile Coated Work Gloves,Nitrile Coated Hand Gloves,Nitrile Foam Coated Gloves Jiangsu Hespax Security Co., Ltd , https://www.hespax.com