Traditional Culture Encyclopedia - Weather forecast - When is the right sowing time for planting coriander?
When is the right sowing time for planting coriander?
When the temperature is lower than 15℃, it is difficult for coriander to germinate. Even if the growth is slow after germination, the quality of coriander will be affected if it is higher than 20℃. If it is planted at a temperature above 30℃ in summer, there will generally be no harvest without manual control. The best sowing method in summer and autumn is direct seeding, and the seed consumption per mu is 1.5-2 kg. The coriander managed in the field is not drought-tolerant, so the soil in the seedbed should be kept moist. Water 2-3 times a day before emergence and 1-2 times a day after emergence. Fertilization is mainly based on base fertilizer, supplemented by topdressing, and combined with watering for a long time. Apply 20-25 kg/mu of urea or ammonium sulfate each time. Nitrogen fertilizer 1-2 times before harvest and quick-acting fertilizer 1 time after harvest. The first weeding was carried out 5- 10 days after sowing, and the second weeding was carried out at the peak of emergence of coriander. Water in time after weeding to avoid water loss and seedling death caused by loose border.
Base fertilizer must be applied before sowing. If the base fertilizer is sufficient, it can be applied less or no topdressing in the later stage. After all, the growth period of coriander is not too long, that is, about two months, and the amount of fertilizer needed is not too large. Then you can plant coriander in exercises or on the radio. If the soil is too dry after sowing, it can be watered in time to keep the soil moist. After the seedlings appear, just water them and pay attention to shading. When the coriander seedlings grow to 3-4 cm, interplanting should be done in time and weeding should be combined. After the seedlings are fixed, the plants will enter the rapid growth period, during which the management of water and fertilizer should be strengthened. Fertilization can be done by using self-made fertilizer or purchasing finished fertilizer. Combined with watering and fertilization, fertilization is generally 2-3 times. If the base fertilizer is sufficient and no fertilizer is applied, Toona sinensis seedlings will grow vigorously, which depends on the soil fertility and the growth of Toona sinensis seedlings.
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