Field management of off-season cultivation of coriander

Keep the soil moist before emergence. When 80% of the parsley emerges, remove the straw. The high temperature in summer and autumn will affect the growth of coriander, so it is necessary to set up a frame in time and cover the sunshade net after removing straw.

Seedling management. Coriander can emerge about 9-10 days after sowing. If there is rain before emergence, it is easy to form a layer of "pot cake" in the field after sunny weather, which will seriously affect the emergence rate of coriander. At this time, water should be irrigated before emergence to ensure the air permeability of the soil to facilitate emergence. When parsley grows to the height of 4-5cm, the seedlings should be carried out to ensure that there is enough space for the growth of coriander. The seedlings should be carried out according to the plant spacing of 3-4cm, and the seedlings should be uniform in size and uniform in size.

Because of the short growing period, coriander is suitable for early weeding, early seedling and early topdressing of available nitrogen fertilizer. Generally speaking, the seedlings should be carried out about 7 days after the full seedlings, and the seedlings should be fixed when there are 2 true leaves, and the distance between seedlings is 3-4 cm. Usually irrigate once every 8 days or so, and start topdressing when the seedling is 3 cm high, topdressing 810 kg of urea and 250 grams of boron fertilizer per mu. Later, combined with watering (every other time), foliar topdressing was carried out with 300 times Zhengfeng ecological fertilizer and 0.3% urea solution.

Harvest in time. At present, the parsley purchased in the market is 23-25cm high, if the height exceeds 25cm, the selling price will be greatly reduced, so when most of the parsley grows to 23cm high, it should be sold in time.