First, soil preparation and fertilization: 1. Soil preparation has a great influence on the yield and quality of carrots. To achieve deep, fine, deep-turning more than 15-20 centimeters, breaking up the dirt, picking up debris, loosening the soil texture, deep soil, creating good conditions for the carrot root swelling. 2, fertilization related information shows that for every 1000 kg of produce, kilograms of carrots need to absorb 3.5 kg of nitrogen, 1.5 kg of phosphorus pentoxide, 6.9 kg of potassium oxide. According to the conditions of the land, combined with the preparation of a decomposed organic fertilizer 2000-2500 kg/mu, phosphate fertilizer 15-20 kg/mu, and potassium sulfate 40-45 kg/mu. The fleshy root growth rate was slower in the 7 weeks before the growth of the carrot, and the root swelling of the flesh began rapidly from the 9th week. At this time, the absorption of nitrogen is relatively large, accounting for 65% of the total nitrogen; and if the previous period is too much nitrogen, the excessive growth of leaves is not conducive to the expansion of the later root; therefore, the general application of urea in carrot cultivation 25-30 kg / Mu, of which 30% are used as basal fertilizers, 70% are applied 45-50 days after sowing. Second, sowing 1, sowing carrots are semi-cold crops, like cool. Seeding too early to bolting. Baoji through the heart of red carrot growth period of 100-110 days, generally about 90 days before the frost sowing more appropriate, sowing season in the Guanzhong region should be at the end of July early August is appropriate. Before sowing, the seeds should be sunned for 1-2 days, and the bristles on the seeds should be removed to facilitate uniform sowing, so that the seeds can be in close contact with the soil and fully absorb water, which is conducive to germination. 2. Seeding and sowing are divided into two ways: sowing and sowing. Where the irrigation conditions are better, the sowing can be carried out in a small area with high ridge sowing and irrigation conditions. Broadcasting: The width of the earthworm depends on the terrain. The land is flat and the rice dumplings can be wider. Otherwise, the rice dumplings are narrower to facilitate irrigation. Usually, a width of 1.5 meters is appropriate. When sowing, sowing is used for sowing. The spacing is 25 centimeters, and the depth of earth covering is 1.5 centimeters. Three, field management 1, seedlings, interplanting Dingmiao: Seedlings during the seedlings 2-3 times, 4-5 when the leaves are fixed seedlings, spacing 7-10 cm, 20,000 left and right seedlings. In the early stage, weeding and cultivating 2-3 times in shallow cultivating soil to protect the seedlings. Deep cultivating once in 50-60 days after sowing to loosen the soil and promote root expansion. 2, spraying paclobutrazol control leaves grow wild in the middle if the leaves grow too prosperous, then spray 1-2 times paclobutrazol, control leaves mad, to coordinate the growth of the relationship between the ground and the underground. 3, irrigation carrot L is more drought-resistant, than ordinary vegetables, especially leafy vegetables, saving water 50%, so in the early stage, especially after sowing, such as soil water can be fine irrigation with small water 2-3 times. 4, pest control less carrot disease, seedling stage susceptible to earthworms and other pests harm, available to deal with soil or bait trap, seedling stage vulnerable to hare damage, a better way is to use human urine spray: once every 7 days, can be effective Prevent Hare Harm.