2. You can plant coriander before and after Qingming Festival, and don't scatter the seeds too close. Don't bury it too deep, just spread a thin layer of soil after sowing the seeds, otherwise it won't germinate or germinate slowly. Water the seeds every day for the first three days and pay attention to spraying. Don't water directly with the hose, it will wash away the seeds. Biological characteristics are strong cold resistance, short growth period and easy cultivation. From sowing to harvesting, the growing period is 60-90 days, which can be cultivated under different natural conditions all over the country. It is generally required to be cultivated on calcareous sandy loam with abundant sunshine and rain, fertile soil and loose soil. It is most sensitive to phosphate fertilizer, which can increase the essential oil content of each seed. The weather should not be dry in the fruiting period, and the soil should be wet, so that virgins can be full. Cultivation techniques use seeds to propagate. Sow in July and August in North China, harvest before 10, sow in warm areas of South China10/1,and harvest in the following spring. Both sowing and drilling can be used, and the sowing amount is 22.5-27 kg per kloc-0/hm2. Knead the fruit before sowing, so that the seeds can contact the soil, absorb water and promote germination. It is not suitable to irrigate when sowing, and then irrigate after 4-5 days, and germinate in about 5-9 days. When the height of field management seedlings is 5-8cm, thinning should be carried out, the plant spacing should be 10- 15cm, topdressing and irrigation should be 1-3 times.