First, the choice of species. Big roots in Changchun, big roots in early spring, big roots in greenhouses, white jade springs, and spring white kings.
Second, seed processing. Soak the seed with water at 50°C for 20-30 minutes, and then put the seeds into cold water immediately to cool and dry.
Third, sowing. Sowing from the end of May to the beginning of June, choose the land with good conditions for water source. The clay land can be planted on the back of the earthworm. The length of the earthworm is 50 centimeters, the plant spacing is 20 centimeters, and about 6000 plants per mu.
Fourth, soil preparation and fertilization. The radish roots are well developed and can generally be plowed into the bottom of the plough. Therefore, deep plowing is required to be more than 30 cm. To prevent the radish mantle from drilling into the roots, organic fertilizer is generally not used. Before ploughing, 40 kg of NPK fertilizer is spread per acre, and the radish begins to expand. At the time, 30 kg of urea can be applied between the rows per acre, followed by watering.
Fifth, watering. In the seedling stage, the water should be poured in a small amount to ensure that the seedlings are fully grown; the leaves must be properly watered in the mature period; the water should be properly controlled in the later period to prevent leggy growth; the roots of the fleshy root should be evenly watered to prevent cracking; and the water should be poured 5-7 days before the harvest. water.
Six, pest control. When the large white radish was unearthed, the cotyledon stage was mainly damaged by the beetle's flea beetle. It could use 800-1000 times phoxim or 500 times the dipterex worming point when sowing, and use 800 times phoxim plus 2000 times killing after emergence. Watering, re-irrigation every other week to ensure full seedlings; radish roots begin to enlarge, shaped like a finger, 50% phoxim EC can be used to irrigate the roots, 500 ml dose per acre control the mantle, only allow irrigation per quarter Root once; black rot can be used 50% DT800 times liquid, neo-mycin 2000 times spray control.
VII. Product specifications. Single weight 0.7-2.3 kg, skin white smooth without insect eyes, straight and straight.
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