Planting anti-season carrots in spring can be listed in the market during the current period, with good sales and high commodity value. The average yield per mu is over 3,000 kg, and the economic benefits are high. The key points of cultivation techniques are as follows.
1. Variety selection: should use strong winter, not easy to bolt, short growing period, more heat-resistant varieties, such as the introduction of blackfield five inches from abroad, spring gold, Jinang five inches, the domestic Yantai five inches.
2. Soaking seeds and germination: generally use 500-750 grams per acre, soak seeds in warm water of 30-40 °C for 3-4 hours 4-5 days before sowing, find out and wrap them in wet gauze, put them in 20- Germination is carried out at 25 ° C and can be sown when most of the seeds are white.
3. Site-wide fertilization: 2500-3000 kg of fertilized manure, 30-40 kg of ternary compound fertilizer for base fertilizer, deep tillage, leveling, and making a 1-1.2 m wide flat file after tillage.
4. Appropriate sowing: cultivation in small arch sheds can be carried out from the end of February to the beginning of March, and the open field is broadcasted in the middle and late March. Ditching and sowing, the line spacing is about 15 cm, and the soil is evenly sprinkled into the ditch and covered with soil for 1 cm.
5. Scientific management: In order to prevent weeds, the soil surface can be evenly sprayed with dylamine or trifluralin 150 ml and water 40 kg before sowing. After the emergence of the seedlings, the seedlings were divided into 5 and 6 leaves, and the seedlings were fixed at a distance of 10 cm. In the seedling stage, watering is generally not required. When the meat is rooted, the watering should be strengthened, and the relative humidity of the soil should be kept at 65%-80%. Stop watering in the later stages of growth and prevent cracking of fleshy roots. In the period of succulent root expansion combined with watering for 2-3 times, the urea is used for 5-7.5 kg per mu.
6. Timely harvesting: Before and after the end of May, when the fleshy roots are fully expanded, they will be harvested and listed. It can also be harvested at one time and stored in a cold storage at 0-3 °C, ready for the summer market.
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