Cilantro planting techniques: what should we pay attention to when planting summer coriander?

What should we pay attention to when planting summer parsley? Please give guidance on the cultivation of over-summer parsley to pay attention to the following points for reference: first, select superior species. Varieties that are resistant to drought, grow fast and are not easy to bolting should be selected. Such as Beijing cilantro, American cilantro, Thai heat-resistant parsley and so on. Second, seed treatment. The temperature in summer is high, and the water in the soil evaporates fast. in order to emerge early and the whole seedling, the seeds should be treated before sowing, that is, crushing the pericarp first, and then soaking the seeds to promote germination. Soak the seeds in cold water for 4 hours for 5 hours, put the seeds in a cotton bag, put them in a temperature of about 15 ℃, accelerate germination for 7 days in a dark and humid environment (such as cellars or earthen pots), and sow when the seeds are white. Third, soil preparation and fertilization. Select the soil with fertile soil, water and fertilizer conservation, convenient drainage and irrigation, and good ventilation, preferably the land where coriander has not been planted in 3 years. 3000 kg of farm manure and 30 kg of high-nitrogen ternary compound fertilizer were applied per mu, and the fertilizer was evenly spread and rotated to make a flat bed with a growth of 5 to 6 meters to be sown. Fourth, fine sowing. The sowing method is often used in production, and the amount of seed used per mu is 3 kg. Before sowing, pour enough water into the border, wait for the water to seep, mix the seeds with sand, spread them evenly, and then cover the fine sand 1cm to 2cm thick. After it was all broadcast, it was suppressed once with a big hoe. Covered with old straw, straw and other covers, it can play a role in preserving soil moisture and cooling. Generally, the seedlings can be produced about 7 days after sowing, and the mulch can be removed when most of the seedlings are unearthed. Fifth, field management. Coriander is afraid of high temperature and strong light, where there are conditions, it can be considered to cover the sunshade net on the cultivated border, which can reduce the temperature and shade, which is beneficial to the normal growth of coriander, increase the yield, improve the quality and improve the planting benefit. If there is no closed herbicide, combine ploughing and hoing at the seedling stage to remove weeds in the field in time to prevent competition for fertilizer and water with parsley. The principle of fertilizer and water management during the growing period of parsley is no drought and no watering, less watering at the seedling stage, and adequate supply of water and fertilizer during the peak growth period. Topdressing depends on the level of soil fertility, combined with watering, mainly topdressing urea or nitrogen and potassium fertilizer, generally fertilizing 15kg each time, and topdressing twice is appropriate. Sixth, control insect pests. Aphids are the main pests of parsley in summer, which are very common under the condition of high temperature and drought, and generally suck the juice of coriander leaves, resulting in a reduction in yield. You can choose 10% imidacloprid 800 times solution spray control, spray once every 7 days, continuously use 2 times for 3 times. 7. Harvest at the right time. Parsley grows faster in summer and can be harvested as soon as possible to prevent bolting when the plant is 20-25 cm high. In order to improve its merchandise, the harvest time is usually harvested after 6pm or in the early morning, and the harvested parsley is sold in the vegetable market or market in time after loading the basket. Click to get more coriander planting techniques click to get more vegetable planting techniques