Detailed Explanation of Cilantro Planting Techniques and Management Methods

Cilantro is a familiar flavor-enhancing vegetable, resembling celery in appearance, with small and tender leaves and slender stems. It has a rich fragrance and is used as a seasoning in soups and drinks, mostly used as a garnish for cold dishes, or to enhance flavor in blanched dishes and noodle dishes. Cilantro originated in the Mediterranean coast and Central Asia, and is now cultivated in most regions.

Growing Conditions

Cilantro can tolerate low temperatures of -1°C to 2°C, with an suitable growing temperature of 17°C to 20°C. Growth slows above 20°C and stops at 30°C. Cilantro has low soil requirements, but soil with good structure, strong fertilizer and water retention capacity, and high organic matter content is beneficial for cilantro growth.

Seed Treatment

Because the seed coat is hard, sowing with conventional methods results in slow emergence. Before sowing, the seeds can be spread on a flat surface and rubbed evenly with a not-too-hard object to crack the seed coat, then they can be sown directly (or soaked for germination). Generally, seedlings emerge about 8-13 days after sowing.

Variety Selection

There are large-leaf varieties and small-leaf varieties. Large-leaf varieties have taller plants, larger leaves, and higher yields; small-leaf varieties have shorter plants, smaller leaves, stronger fragrance, better cold tolerance, and strong adaptability, but slightly lower yields. Small-leaf varieties are more commonly cultivated.

Land Preparation

Apply 2000-3000 jin of farmyard manure per mu, 10 kg of diammonium phosphate, and 10 kg of potassium sulfate, then deep plow and level the land. Use drilling or broadcasting; for both drilling and broadcasting, cover with 2-3 cm of soil, using 3-4 jin of seed per mu. After sowing, tread over the soil once, or use a leveling tool to press it down, then water to keep the soil moist to promote emergence. At the same time, attention should be paid to the phenomenon of soil crusting before cilantro emerges, which prevents seedlings from pushing through the soil. Check for seedlings promptly after sowing. If soil crusting is found when seedlings are emerging, promptly sprinkle water and loosen the soil to help the sprouts emerge and grow normally.

Planting Time

Can be planted in spring, summer, and autumn. Autumn is more suitable, with the appropriate sowing period being after mid-August, producing better quality.

Field Management

In order to create suitable growing conditions for cilantro and achieve appropriate temperature and humidity conditions, multiple rounds of careful intertillage, soil loosening, and weeding are necessary. When seedlings grow to about 3 cm, thin and finalize the seedlings. Generally, intertillage, soil loosening, and weeding are done 2-3 times throughout the growing period. The first time is mostly when seedlings are pushing through the soil, using a light hand hoe or small rake to lightly break the soil surface and loosen the soil, eliminating the crusted layer. At the same time, pull out emerging weeds to facilitate seedling emergence and growth. The second time is when seedlings are 2-3 cm tall; for drilled sowing, a small flat hoe can be used to loosen the soil appropriately deeper, combined with pulling out weeds. The third time is when seedlings are 5-7 cm tall. This early intertillage, soil loosening, and weeding can promote vigorous seedling growth. After the leaves completely cover the ground, regardless of drilling or broadcasting, no more intertillage or soil loosening is needed, but attention should be paid to pulling out weeds.

Cilantro is not drought-tolerant and must be lightly watered every 5-7 days. Basically, during the entire growth period, watering should be done 5-7 times to keep the soil consistently moist. During the mid-growth period, apply about 10 kg of urea per mu to ensure good growth.

Harvest

Cilantro can be harvested about 30-40 days after sowing in high temperatures, and 40-60 days after sowing in low temperatures. It can be harvested by thinning, or harvested all at once.