Yuhong 2 is a special-purpose fresh-keeping export and special juice-type product cultivated by the Horticultural Institute of Henan Academy of Agricultural Sciences for the needs of domestic and foreign markets. The root shape (cylindrical) of the variety is neat, root length is 16-22cm, root thickness is 4-5cm, single root weight is 250-300g, epidermis is smooth, skin, meat, and heart are all red, and commodity is excellent. Production can reach up to 4000 kg. Soil preparation for ridge cultivation requires deep soil, and the land should be turned 25 to 30 cm deep before planting. In combination with the deep-turning land, per acre, 4,000 kg of farmyard manure, 25 kg of ammonium bicarbonate, and 25 kg of superphosphate are applied. After fertilization, the soil was ridiculed at a distance of 50 cm wide, with a ridge width of 30 cm and a ridge height of 15 cm. Appropriate planting in central Henan Province is usually planted around July 20, and it can be sown before and after the beginning of autumn. The seeded seedlings are planted with 500-600 grams per acre, and sowing seeds of 700-1,000 grams per acre. Post-plant management 1. Spray herbicides. After planting, seedlings should be treated with 33% Shitian replenishing oil 100-150 ml per mu, and 40-50 kg water, and spray the surface after mixing. 2. Watering. After sowing, the seedlings should be sprayed with 2 to 3 times of Qimiao water, and the ridge surface should be kept moist to prevent it from drying out and dampness, so as to ensure emergence and neatness. Seedlings can emerge 5 to 7 days after sowing. After emergence, as long as it is not dry, water as little as possible. The root swelling period (usually after the plant grows to 7 to 8 true leaves) requires the greatest amount of water, and sufficient fertilizer and water should be ensured during this period. During the whole growth period of carrots, flood irrigation is not allowed. Strictly control the accumulation of water in the field. Drain the water in time after heavy rain to avoid fleshy roots. 3. Saplings. When the seedlings grow to two true leaves, the first time the seedlings are planted, and the spacing between them is maintained at about 3 cm; when the seedlings grow to four true leaves, the second time the seedlings are maintained, so that the spacing between the two is maintained at about 10 cm; the seedlings grow to 6 When the leaves are fixed, the seedlings will be planted with about 26,000 plants per mu. 4. Top dressing. Carrots are generally topdressed for 2 to 3 times throughout the growing period. If the basal fertilizer is insufficient, the topdressing can be carried out immediately after the seedling is set, 15 kg of urea can be applied per acre of water, and when the root of fleshy root begins to expand, 20 kg of ternary compound fertilizer can be applied per acre; Fertilizer 30 kg. Appropriate harvest Henan Province is generally harvested in mid-late November. There is no strict harvest period for carrot harvesting. As long as the market price is good, it can also be harvested in advance.
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