One time and time seedlings, strengthening of cultivating and weeding throughout the growth period, carrots need to carry out two seedlings, the first time the seedlings are in 1 or 2 true leaves, and then shallow, weeding and weeding, promote seedling growth. When the second seedling is in 3 to 4 true leaves, the seedlings are better. The plant spacing of the small and medium-sized varieties is 10 cm, and the distance between the large varieties is 13-15 cm, and the cultivation is carried out. Reasonable close planting is one of the important measures for the high yield of carrots. The density is too large, which makes the plants shade each other, and the photosynthesis is weakened, especially the lower leaves are easy to prematurely decline, and finally the yield is reduced.

Second, we must scientifically plan for the fertilization of fertilizer water. We must not lack water. It is necessary to keep the soil moist. It is not conducive to seed germination and unearthing. During the growth period, the fertilizer should be topdressed 2~3 times. The first top dressing is carried out during the period of carrot breakage. Combined with watering, the mu is used to chase the mature man's excrement 1000 kg or urea 20 kg, and then chase the second or third fat after 20 days. Each time, 15 to 20 kg of urea is applied, and a small amount of potassium fertilizer is added as appropriate. Into the vigorous growth of the leaves, should properly control the water to prevent the length.

Third, the timely growth of carrots is generally 100 to 130 days. It is appropriate to harvest from mid-October to early November in the central and southern parts of the country. It will affect the yield too early, and it will be too cold to be stored in the late.

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