Radish is a semi-cold-resistant vegetable. The seeds can germinate at 2℃-3℃, and the suitable temperature is 20℃-25℃. The seedling stage can tolerate higher temperatures around 25°C, as well as low temperatures of minus 2°C-minus 3°C. The growth temperature of radish stems and leaves is 5℃-25℃, and the suitable temperature is 15℃-20℃. The growth temperature of fleshy roots is 6°C-20°C, and the optimum temperature is 18°C-20°C. When the temperature is lower than minus 1°C-minus 2°C, fleshy roots will be frozen. Moisture-The effective water content of the soil suitable for the growth of fleshy roots of radish is 65%-80%, and the air humidity is 80%-90%. The air humidity is high, which can improve the quality. However, the soil moisture should not be too much, otherwise the air in the soil is lacking, which is unfavorable for the growth and absorption of roots. If the soil is too dry, the spicy flavor of the fleshy roots will increase and the quality will be poor. If the water supply is uneven, the fleshy roots are prone to cracking. Soil-The radish has a deep soil layer, and it is best to use sandy loam soil with abundant water and good water retention and fertilizer retention performance for loose soil. The suitable pH value of the soil is 5.3-7. Nutrition-the amount of nutrient elements absorbed by radish is potassium, the second is nitrogen, and the second is phosphorus. According to research, every 1,000 kg of radishes produced absorbs about 5.55 kg of nitrogen, 2.6 kg of phosphorus, and 6.37 kg of potassium. The ratio of the three elements is 2.1:1:2.5. Light-The growth of radishes requires sufficient sunlight, sufficient sunlight, strong plants, strong photosynthesis, large accumulation of substances, rapid expansion of fleshy roots, and high yield. The photoperiod effect of radish is a long-day plant, and the vernalization of the plant under long-day (more than 12 hours) and higher temperature conditions, the flower bud differentiation and the blooming of the flower branches are faster.