First, Dingmiao. When the seedlings appear two true leaves, the seedlings are planted, and the inferior, miscellaneous and weak seedlings are unpicked to prevent the seedlings from being congested and grow in length so that the seedling distance can be kept between 3-5 cm. 15-20 days after sowing, when the seedlings grow 4 true leaves, they will be seedlings. When setting seedlings, according to the prescribed spacing, retain the strong seedlings, remove the remaining seedlings, in order to facilitate high yield. Second, weeding weeding. In general, cultivating once after the seedlings, so that the soil is often kept soft, no grass, maintain soil moisture, prevent soil compaction. After setting seedlings, combine topdressing, from shallow to deep, and then cultivating the soil one time. Third, irrigation. Germination period to keep the soil moist. Seedlings in case of drought should pay attention to watering. Prevent water damage to seedlings when watering. During the leaf growth period, the moisture should be properly controlled and the soil should be cultivated. During the growth period of fleshy roots, the water requirement is high and sufficient water supply should be maintained to prevent the soil from drying out and dampening, which is not conducive to the growth of fleshy roots. Fourth, topdressing: seedlings late, combined with soil moisture, topdressing once available nitrogen fertilizer, with phosphate fertilizer. In the early stage of fleshy root enlargement, topdressing urea is combined with watering once to promote the transport and accumulation of nutrients. Fifth, pest and disease control. In the early stages of the black rot disease, the diseased plant was removed as soon as possible, and sprayed with 65% dexamethasone 500 times or 1:1:200 Bordeaux mixture. The hazards of aphids and leeks can be controlled by spraying 50% dichlorvos EC 800-1000, 40% Leko emulsion 1500 times or 50% phoxim 800 times. When downy mildew occurs in radish leaves, it can be sprayed with 90% EB aluminum wettable powder 500 times or 25% thioredox mold wettable powder 600 times. For ground pests such as earthworms and floorworms, it is possible to use 80% trichlorfon 800 times or 80% phoxim EC 800 times to irrigate the roots, or combine 2-3 kilograms of fertilized granules per acre with water.
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