2, soak the seeds, and treat the seeds before sowing. Put the coriander seeds in warm water to soak for about 2 days, you can also use a concentration of 1% carbendazim solution for soaking, time for about 20 minutes, after soaking with water to wash, let the seeds dry naturally, after which you can germinate and sow the seeds.
3, germination seeding, in the germination can be placed on a moist paper towel, you can also put the seeds in the sand, the temperature is maintained at about 25 ℃, about a week later can be germinated. Plant the germinated seeds into the soil, watering once, moderate application of some nitrogen fertilizer, which will help cilantro growth.
4, light and temperature management, when the cilantro seedlings long leaves can be placed in the sun, to ensure that the light time of about 5 hours a day, when the midday sun is strong to give it added shade. In terms of temperature, control the temperature of the surrounding environment between 18 and 22 ℃, and you should keep the surrounding air circulation when the temperature is too high.
5, water and fertilizer management, in the spring and autumn seasons, you can give the cilantro watering once a day, in the summer to water 2 times a day, if the temperature is too high you can give the cilantro leaves in the midday water spray, winter to reduce the number of times to water, generally about 4 days of watering. In the growing period of cilantro to apply 3 times of fertilizer, when the cilantro seedlings grow to about 7 centimeters high when applying a compound fertilizer, in the seedlings grow to about 9 centimeters high when applying a urea, in the seedlings grow to about 13 centimeters high when applying an organic fertilizer.