First, choose the varieties of carrots sown in spring and summer use crisp, sweet, good palatability; autumn sowing carrots use high yield varieties.
Second, the cultivation of the first point using greenhouse cultivation, sowing in early February, listed in early April, about 40 days of growth period, can produce carrots 2000 ~ 2500 kg per acre; second crop open field cultivation, sowing in early April, In the 40-day growth period, 2500-3000 kg of carrots can be produced per acre; the third crop is sown in late June, and the growth period is about 35 days. The carrots can produce 2000-3000 kg per mu; the fourth crop is sowed in early August and grows. Period 30 to 35 days, can produce carrots 2500 ~ 3000 kilograms per acre; the fifth crop is sown in mid-September, part of the early winter market, the rest listed before and after the Spring Festival, can produce 4500 kilograms of carrots per acre. The first four pods were drilled with 25 cm spacing, 15-20 cm spacing, and 15,000 litres per mu. All pods were planted at the seedling three-leaf stage.
Third, fertilization points Carrot growth period is short, the amount of fertilizer required, the general basal fertilizer per acre applied to livestock manure 3000 kilograms, superphosphate 50 kilograms, urea 20 kilograms, plant large leaf period per acre topdressing ammonium bicarbonate 50 kilograms. In case of drought, it is necessary to use fertilizer and water for irrigation. Otherwise, the surface of the radish will not be smooth and there will be cramps, affecting quality and yield.
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