Coriander, also known as clams, is native to the Mediterranean coast and is cultivated throughout China. The leaves have a special aroma, which is the main edible part, and the seeds are even more seasoned. The following are the highlights of the summer and autumn cultivation techniques for parsley. First, the varieties of varieties selected coriander can be divided into small coriander and large parsley. Large parsley has slightly less aroma, but it grows faster and yields more. Small parsley has a strong aroma but slow growth and low yields. Summer season cultivation of parsley, should use Thailand four seasons large varieties of parsley. Second, the seed treatment of coriander fruit is spherical, containing 2 seeds, the fruit must be split before sowing to facilitate the emergence of uniform seedlings. The seeds are soaked with 1% potassium permanganate solution or 50% carbendazim wettable powder 300 times for 30 minutes, then washed and washed, then soaked in clean cold water for about 20 hours, and then germinated at 20°C to 25°C. sowing. Third, the site preparation fertilization choose drainage and irrigation convenient, loose and fertile plots, the former crop after harvesting timely deep-turn 20-25 cm, sun soil for 15 days. In order to facilitate the use of shade nets, deep trenches with a height of 20 cm, a width of 1.2 m, and a width of 30 cm are made. Due to the short growing period of coriander, combined with a site preparation of 667 square meters Shi Zhengfeng eco-fertilizer 100 kg Jiaen Yi Bi 30 grams, or 3,150 kilograms of manure excrement and 150 kg of cake fertilizer, phosphate fertilizer 50 kilograms, soil leveling fine. Fourth, timely sowing according to the climate characteristics of the region, from mid-May to early July sowing. Generally, sowing should be appropriate. If the supply of fast-growing seedlings should be highly dense, the sowing amount should be 8-10 kg per 667 square meters. After sowing, it was irrigated with water and covered with 1 cm thick straw to promote seedling emergence. V. Field Management When 80% parsley emerges, straw should be removed. In the summer and autumn, the shade net and insect net should be covered in time after the straw is removed, and the cover should be observed in the morning and exposed at night to strengthen ventilation to prevent the occurrence of diseases. Early weeding, early seedlings, early recovery of available nitrogen fertilizer. Generally should be 7 days after the emergence of seedlings between the seedlings, two true leaves when the Dingmiao, seedlings from 3-4 cm. Usually about 8 days to pour water, seedling height 3 cm began to recover the first time fertilizer, topdressing urea 8-10 kg per 667 square meters and boron fertilizer 250 grams. After pouring water once, use 300 times Zhengfeng Ecological Fertilizer plus 0.3% urea solution for one-time foliar dressing. Add appropriate amount of potassium dihydrogen phosphate at the later stage of foliar application. In the first half of harvest, it is advisable to spray a 25 mg/kg solution of gibberellin (9O) to promote elongation of the petioles, increase the number of leaves, and increase yield. VI. Pest control Because parsley has a pungent scent, few insect pests occur. Diseases mainly include seedling stage damping-off disease, adult stage virus disease, anthrax and spot blight. After 5 days of emergence, use a non-pollution fungicide 3% oxygenated oxygen 800 times to spray one time, and then spray every 7 days with 600 times of polyoxygenation solution for a total of 2-3 times, which can prevent the occurrence of damping off. It can also prevent anthrax and spot blight. If viral disease occurs, it can be controlled by 800 times potassium permanganate solution or virus K1000 solution.
