Field Management of Winter Carrots

The tender seedlings are carrots, and the planting of dense leaves is not conducive to the formation of fleshy roots. Therefore, seedlings need to be seeded after time and time. The first time the seedlings were in 1 to 2 true leaves and the seedling height was 3 cm. The density of seedlings was 3 to 5 cm 2 ; the second time the seedlings were 7 to 10 cm in height, and 6 to 7 square meters were used. The centimeters are suitable for seedlings; the third time the seedlings are set at 15 to 20 centimeters, 10 square centimeters is appropriate, large varieties are suitable for 15 to 20 centimeters, and 3 to 50,000 per seedling.

Composting carrots have a long growing period. In addition to basal fertilizers, they are top dressing 2 or 3 times, but the amount of nitrogen fertilizers must be controlled. Otherwise, it can lead to leggy and affect the enlargement of fleshy roots. The first topdressing fertilizer is applied 20 to 25 days after emergence, and the seedling age is 3 to 4 pieces of true leaves, with 2 kg of urea per mu, 3 to 4 kg of superphosphate, 2 kg of potassium chloride, and a small amount of decomposed human waste. , watering 1500 kg topdressing; the second topdressing after the emergence of 40 to 50 days (after Dingmiao), 4 kg of urea per urea, superphosphate 4 kg, 3.5 kg of potassium chloride, plus a small amount of human urine , watering 1500 kg topdressing.

Irrigated carrots have small leaf area, low evaporation, well-developed root systems, strong absorptive capacity, and are relatively drought-tolerant, but in the summer and autumn dry season, especially when the roots are swollen, proper irrigation is needed. Generally, the soil moisture should be maintained at 60% to 80%. If the water supply is insufficient, the flesh roots will be thin and rough. If the water supply is uneven, dry and damp, it is easy to cause rooting. Watering should be stopped after the roots of the meat are fully swollen to prevent rot.

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