Soil fertigation. Choose a sandy loam with deep soil, fertile texture and loose air permeability (Note: Do not choose cruciferous vegetable mouthwash). Cultivate, sip, and flatten the soil and make the soil empty. High ridges before sowing, ridge width 30 cm, height 15 cm, ditch width 20 cm.
Proper sowing. Sowing at the end of July to mid-August, due to the poor survival rate of transplanting, the seeding method is generally used for live broadcasting, with a spacing of 50 cm, a spacing of 25 cm, a seeding depth of 1.5 cm, and a seeding of 3-5 seeds per hole.
Field management. Autumn radish is in the early stage of high temperature and rainy season, and it is necessary to strengthen management.
1. When the seedlings appear two true leaves when the seedlings, when the thinning pay attention to weak and strong, leaving 2-3 per hole seedlings, seedlings 4-5 true leaves when the Dingmiao.
2. Timely cultivator cultivator, cultivator should grasp the principle of shallow shallow deep and shallow, the first cultivator after Dingmiao should be shallow, the ground can be cut, after the cultivator can be properly deepened, but can not hurt the roots to prevent rot or Rift and so on.
3. Irrigation fertilizer. Seedlings of 4-5 true leaves appear to “broken bellyâ€, and watering should be reduced before breaking the belly to promote straight roots. The top of the root is usually exposed and the fertilization and irrigation should be paid attention to when the thickness is nearly 2 cm. The lack of water at this time will appear hollow, hard and spicy, and reduce production.
4. Insect pest treatment. 90% crystal trichlorfon 500 times can be used for the root carp irritation irritation; vegetable pupae, cabbage caterpillar can be used 50% phoxim EC 1000 times or 20% triazophos EC 700 times and other control; dishes can be used 70% quebracho pine WP 2000 times liquid prevention; downy mildew and other diseases can be used 65% mancozeb WP 500-600 times liquid and other prevention and treatment.
Appropriate harvest. The radish is generally harvested after the fleshy roots are sufficiently enlarged. The autumn radish prepared for storage should be timely harvested before freezing.
Avoid the hollow method of radish. Correct and timely water supply. The requirement for soil water content during the growth and development stages of radish is generally 60% to 80%, especially during the period of root enlargement of radish, when the soil water supply is insufficient or during drought, it is easy to cause hollowness, so the water supply should be balanced, when the soil contains water When the amount of water is lower than the above requirements, it is necessary to water properly.
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