Thin seedlings, carrots hi light, seedlings should be ready in time. The first thinning is carried out with 1 to 2 true leaves and the height of the seedlings is 3 cm, and the density of the remaining thinning is preferably 3 to 5 square centimeters. The second thinning is carried out when the seedlings are 7 to 10 cm high and 6 to 7 squared. It is advisable to leave the seedlings in centimeters; the third time to set seedlings is performed at a plant height of 15 to 20 centimeters, preferably 10 square centimeters.
Topdressing, carrot growth period is long, in addition to basal fertilizer, but also topdressing 2 or 3 times, to control the amount of nitrogen fertilizer application, otherwise it will easily cause leaf length, affect the expansion of fleshy roots, topdressing should be thin, otherwise it is easy to cause branch roots. The first fertilization was carried out 20 to 25 days after emergence and at the age of 3 to 4 true leaves. Urea, calcium superphosphate, potassium chloride, and a small amount of rotten mature manure were used for topdressing; the second fertilization was after emergence. For 40 to 50 days (after the seedlings are set), urea, calcium superphosphate and potassium chloride are applied, and a small amount of rotten cooked human feces is added.
Irrigation, carrots have a small leaf area, low evaporation, developed root systems, strong absorption, and are more drought-resistant. Generally, the soil humidity is maintained at 60% to 80%. After the carrots have long succulent roots, they are sprayed with ground fruit to improve the meat quality. Watering should stop after the fleshy roots have fully expanded.
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