What are the key points for planting and managing autumn radishes?

??? 1. Land preparation and fertilization: Choose sandy loam soil with deep soil layers, fertile texture, and loose, well-aerated structure; do not choose a plot that previously grew cruciferous vegetables. Base fertilizer should be the main source, with topdressing as a supplement. When preparing the land, apply 3000 kg of decomposed farmyard manure per mu, along with an appropriate amount of chemical fertilizer.

2. Sowing at the right time: Before sowing, form high ridges 30 cm wide and 15 cm high, with 20 cm wide furrows. When the seedlings have 2 true leaves, thin them out, taking care to remove the weak and keep the strong, leaving 2-3 plants per hole. When the seedlings have 4-5 true leaves, finalize the spacing.

3. Pest and disease control: For root maggots, use a 500-fold dilution of 90% trichlorfon crystal to drench the roots and kill the maggots; for cabbage webworms and cabbage caterpillars, use a 1000-fold dilution of 50% phoxim emulsifiable concentrate; for cabbage aphids, use a 2000-fold dilution of 70% menazon wettable powder.