Coriander cultivation techniques

Growing environment

Coriander can tolerate low temperatures of minus 1 ℃ to 2 ℃, suitable for growth temperatures of 17 ℃ to 20 ℃, more than 20 ℃ growth is slow, 30 ℃ will stop growing. Coriander is not strict on soil requirements, but soil structure, fertilizer and water retention performance, high organic matter content of the soil is conducive to the growth of coriander.

Variety selection

Coriander has large-leafed varieties and small-leafed varieties. Large-leafed varieties of high plants, large leaves, fewer and shallow notches, light flavor, higher yield; small-leafed varieties of shorter plants, small leaves, deep notches, strong flavor, cold resistance, adaptability, but the yield is slightly lower, the general cultivation of small-leafed varieties.

Open field cultivation

Coriander spring, fall, winter can be open field cultivation. Seedlings should not be watered too much. When the seedling grows to 10 centimeters, the plant grows vigorously, should be watered diligently, keep the soil surface moist. Watering at the same time chase the application of fast-acting nitrogen fertilizer 1 to 2 times. Pay attention to plowing and appropriate inter-seedling, inter-seedling when pulling weeds. In summer, proper shade is needed, and to prevent heavy rainfall, timely drainage after the rain, to ensure that the seedlings are neat and tidy.

The greenhouse cultivation

Generally 9 to October live, before winter irrigation of a frozen water, in order to facilitate the seedlings to overwintering. January buckling shed, January to February without ventilation. When the seedlings return to the green, the mid-tillage, loosening the soil, weeding. When the seedlings are 10 centimeters high, the plant enters the vigorous growth period, and the greenhouse is maintained at 15 ℃ to 25 ℃. Use about 15 kilograms of ammonium sulfate per mu each time and apply it 1 to 2 times, which can be harvested earlier.

Land fertilization

Generally, planting coriander (coriander) should choose loose soil, rich in organic matter, drainage and irrigation of convenient plots of land, the previous crop harvest, turn the soil in a timely manner, 15 to 20 centimeters deep, so that the weathering of the sun more than 2 weeks, and then sprinkled per acre of rotted high-quality farmyard manure 4,000 to 5,000 kilograms of composite fertilizer 10 to 15 kilograms of fertilizer for the base, ploughing and harrowing After making the border 140 to 150 centimeters wide, 20 to 25 centimeters high, long according to the length of the plot, ditch width of 30 to 40 centimeters, and as a sidewalk.

The soil should be fine, loose and level. If you use strip seeding should also be in the bed according to the row spacing of 8 to 10 centimeters to open 4 to 5 centimeters wide, about 2 centimeters deep seeding furrow, ready to sow.