The sowing method of radish has three kinds of spot sowing, strip sowing and sowing. Planting density, generally large species such as South Shore Island, Zhejiang Dachang, etc., spot sowing or strip sowing row spacing 40-50 centimeters, plant spacing 40 centimeters. Medium-sized species such as short leaf 13, strip sowing row spacing 17-27 cm, plant spacing 17-20 cm. Small-sized species such as four seasons radish, sowing row spacing 4-7 cm square. Sowing watering method, there are first watering and then sowing and then cover the soil, and first sowing, cover and then watering two kinds, the former bottom water enough, above the soil is loose, seedlings out of the ground easily; the latter is easy to make the soil slate, must be in the seedling before frequent watering, keep the soil moist, easy to come out of the seedling. After sowing the thickness of the cover about 2 cm, easy soil slightly deep, on the heavy soil slightly shallow. Sowing too shallow, the soil is easy to dry, and seedlings are easy to fall over, the embryonic axis is bent, the future root shape is not straight; sowing too deep, not only affects the speed and robustness of the seedlings, but also affects the length and color of the fleshy roots. The amount of seed sown varies depending on the variety, seed fullness, germination rate, sowing method and cultivation season. Seed quality should be strictly checked before sowing. Generally, large and medium-sized varieties are sown with 0.5 kilograms of seed per mu, 4-5 seeds per hole, and make the seeds spread in the hole, and 1.0 kilograms of seed is used for strip sowing; and 1.5 kilograms of seed is used for small varieties of sowing per mu.