Parsley is a kind of celery, alias acacia, parsley, known for its aromatic volatile oil, its green color, rich flavor. Parsley is similar to celery and has similar properties. It is a special vegetable variety with vitamin A1 vitamins B1 and B2 that are higher than celery. Growth habit Parsley is a biennial dwarf vegetable of the genus Umbelliferae. The leaves are rooted, the leaves are dark green, the petiole is long, the leaves are often missing, and some curls are chicken-like. Parsley like cold, more cold-resistant, suitable growth temperature 15-20 °C, the temperature exceeds 25 °C plant growth is poor, susceptible to disease, can withstand -3 °C -4 °C low temperature, seedlings to adapt to the temperature range than plants. The root system of parsley is shallow and its absorption capacity is weak. Therefore, it is required that the soil be kept loose and moist to ensure sufficient supply of moisture. Cultivation management Sowing and growing parsley can be cultivated in spring and autumn. Spring is generally in late March, autumn in late July, two methods can be used live seedlings or transplanting seedlings. The amount of seeds used per acre of live broadcast is about 1,000 grams, and about 200 grams per acre are planted for transplanting seedlings. After sowing, the irrigating water can be covered with corn stalks or shade nets. The seedlings can be released after 10-15 days. After the emergence, the cover is removed. The seedlings are then sparsed for 2 - 3 times, and the spacing of the rows is maintained at 10×10 cm. When the seedlings are transplanted, they can be planted when the seedlings grow to 3 to 4 true leaves. Fertilizer management The whole growing season of parsley has a large demand for nitrogen fertilizer, followed by phosphate fertilizer and potash fertilizer. During the site preparation, the base fertilizer should be applied. The base fertilizer is mainly composed of high-quality farmyard fertilizers, supplemented with diammonium or ternary compound fertilizers, and then intensively cultivated. In field management, combined with watering, flushing urea 3--4 times and decomposing human urine 4--5 times, alternating between the two, in order to avoid the root cause, the top dressing is generally not buried in the soil. Parsley is sensitive to boron, and boron deficiency can cause cracking in the base of the petiole. Therefore, the topdressing of boron fertilizer should be carried out for 3 to 5 times throughout the growth period of parsley. Harvested parsley can be harvested at one time or harvested in stages. When the parsley plant body reaches the commercial character, it can be timely harvested. Stage harvesting can draw 15-20 centimeters of outer leaves from the base and leave the heart to allow it to continue growing. This will increase the growth and harvest period of parsley to increase yield and economic efficiency. Pest control Parsley because of its own special smell, relatively few pests and diseases. The main insect pests are caused by aphids. They can be treated with 50% anti-influx or banned mist WP 2000--2500 times. The common disease is early blight, also known as spot disease. When used for prevention and control, 70% mancozeb or thiophanate-methyl 400--600 times, or 50% acetaminophen wettable powder can be used.
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