After emergence, seedlings should be planted at intervals of about 3 cm. Before overwintering, there is generally no need to water to promote deep roots. When there are 5-6 leaves, water should be poured once. Before freezing, set up wind barriers or ground covers in some areas to make them overwinter and harvest early. When the soil is frozen at night and isolated during the day, immediately fill the frozen water and seal it, apply ternary compound fertilizer or10-15kg diammonium along the water, and then cover the boundary with cold-proof articles such as hay. If it is cultivated in the open field, it is not advisable to water it too much at seedling stage. When the seedlings grow to 10 cm, the plants grow vigorously. Water the soil surface with Qin Ying to keep it moist. While watering, topdressing nitrogen fertilizer once or twice. Pay attention to intertillage and appropriate thinning, and pull out weeds during thinning. Shading should be done properly in summer to avoid heavy rain. Drain it in time after the rain to ensure that the seedlings are neat.

In the case of greenhouse cultivation, frozen water should be poured once before winter to facilitate the seedlings to overwinter. The shed 1 month is closed, and ventilation is not needed in1-February. When the seedlings turn green, intertillage, loosen the soil and weed. When the seedling height is 10 cm, the plant enters the vigorous growth period and the greenhouse is kept at 15-25. Ammonium sulfate 15 kg per mu can be harvested once or twice in advance. When planting, try to choose varieties with smaller leaves, which have stronger cold resistance and greater fragrance, and are especially suitable for family planting. When choosing seeds, choose the ones that look fresh and full, and don't buy cheap old seeds, otherwise the germination rate will be very low.

Coriander has strict requirements on the soil where it grows. The soil should be rich in organic matter, fertile and drained. After that, the planting place should be turned over, flat and easy to sow, and agricultural fertilizer can be applied once when the soil is turned over. The propagation of coriander is generally through sowing. Peel off the seed shell in advance, then soak it in water for about a day, then wrap the seed with cloth and put it in the environment of 15 ~ 20 to facilitate the germination of the seed. First, water the soil. After water permeates, the germinated seeds can be scattered and covered with soil 1 cm. You can't water it for a while after sowing, but you can water it once a week after coriander survives, but don't use too much water, just keep the soil moist during the growing period. Coriander has little demand for fertilizer. Generally speaking, the base fertilizer is sufficient for growth. If the growth is not good, just add some light fertilizer.