Key points of high-yield cultivation techniques for summer sowing carrots
First, choose the best species
Choosing the right pair of roads is the key to increasing production and income. Production shows that South Korea's dry red 100 days, Thailand's Hongxiu, Japan's Kuroda five inches, and red ginseng six inches have high yield, good quality and resistance. It is characterized by strong disease and is suitable for planting.
Second, the appropriate sowing
The appropriate sowing date is in the middle and late July. There are two methods of sowing and sowing. When the seedling period is high, the temperature is not suitable for carrot seed germination and seedling growth, and the seedling rate is lower than that in spring. Therefore, the seeding rate should be appropriately increased, and the seeding amount per acre is 250-300 grams. Covered with straw or other straw after sowing, where there are conditions, it is best to use a shade net to cover the shade, requiring the shade net to be about one meter away from the ground. For plots with insufficient shade coverage after sowing, the amount of seeding needs to be increased appropriately.
Third, and time seedlings, strengthen cultivating
During the whole growth period, carrots need to be planted twice, the first time the seedlings are in 1 or 2 true leaves, and then shallow, causing the seedlings to grow. When the second seedling is in 3 to 4 true leaves, the seedlings are fixed by this method. 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.
Fourth, scientific operation of fertilizer and water
The seedling period should not be short of water. It is necessary to keep the soil moist, and it is not conducive to seed germination and unearthing. During the growth period, the fertilizer should be topdressed 2 or 3 times. The first top dressing is carried out during the carrot breaking period. Combined with watering, the mu is used to chase the mature man's excrement 1000 kg or urea 20 kg. After 20 days, the second or third fat is followed. 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. The period of succulent root expansion is the fastest growing period of fleshy roots. The demand for water is the most, and the water supply should be met in time, and the small water should be poured. In the later stage, attention should be paid to controlling water and puncturing the roots.
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