West blue flower high yield technical points
West blue flowers are suitable for growing in cold climates and can only be cultivated in autumn and winter. The selection of the plots was selected as the nursery and transplanting sites because the conditions for irrigation and drainage were good and the former was not a field of cruciferous (Chinese cabbage, cabbage, cauliflower, radish). Nursery should be nursed in a greenhouse with ventilation, good drainage, shade, and rain-proof facilities. After sowing, the seedlings shall be timely covered with plastic film, the film shall be covered with a shade net to cool, the roof shall be covered with a top film, the top film shall be covered with a shade net, and the temperature within the tent shall be controlled at about 25°C.
Appropriate base fertilizer should be planted with reasonable density before planting 100 to 200 tons of organic fertilizer per acre, 50 kg of high-concentration compound fertilizer, and 0.8 kg of boron fertilizer. Then plough and turn to make hoe, adopt high ridge double row, ridge width is 1 meter, plant spacing is about 40 centimeters, acres plant 2700-3000 strains. Immediately after planting, set the root water.
The management of the blue flowers in the field is good for fertilizer, timely application of fertilizer and watering in phases, which is the key to good quality and high yield. Fertilization principle, in principle, "light to mention Miao Fei, apply enough hair to fat, clever application of big fertilizer." Under the premise of applying basal fertilization, the top dressing is applied three times, that is, after 7 to 10 days after planting, the seedling fertilizer is chased once, and 5 kg of urea per acre plus 100 kg of human feces and urine are thinly decomposed. 10 to 12 pieces of fertilizer when applied, 15 kg of urea per acre, plus 10 kg of high-concentration compound fertilizer. Bud stage, when the buds have the size of table tennis, chase after applying fertilizer, apply 5 kg of urea per acre.
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