Key points of cultivation and management of coriander in solar greenhouse

Cilantro, formerly known as coriander, alias: coriander, coriander, Umbelliferae, coriander, annual or biennial, strong-smelling herbs, 20-100 cm tall. The root is fusiform, slender, with many slender branches. Stems Terete, erect, much branched, striate, usually smooth. Root leaves stipitate, style erect when young, retrorse outward when ripe. The fruit is round, and the main ribs and adjacent secondary ribs are obvious on the back. The ventral surface of the endosperm is concave. The tubing is not obvious, or 1 is located below the secondary edge. Native to the Euro-Mediterranean region, it is cultivated in Northeast China, Hebei, Shandong, Anhui, Jiangsu, Zhejiang, Jiangxi, Hunan, Guangdong, Guangxi, Shaanxi, Sichuan, Guizhou, Yunnan, Xizang and other provinces. Stems and leaves are used as vegetables and spices, and have the effect of invigorating stomach and eliminating food; fruit can extract aromatic oil; fruit is used as medicine, which has the effect of expelling wind, penetrating rash, invigorating stomach and expectorant.

Coriander traditional Chinese medicine believes that coriander is warm and sweet, can strengthen the stomach and digestion, sweating through rash, diuresis, expelling wind and detoxification. The Compendium of Materia Medica says: "coriander is warm and fragrant, with heart and spleen on the inside and limbs on the outside." "Roche will make an appointment with the medical mirror" means "to dispel all unhealthy qi, disperse wind and cold, fever and headache, stop eating food, go smoothly, go to the eye, and get more and more pimples." Modern research has found that coriander is famous for its fragrance mainly because it contains volatile oils and volatile aroma substances. Parsley is rich in nutrition, parsley contains vitamin c, carotene, vitamin b1, b2, etc., but also rich in minerals, such as calcium, iron, phosphorus, magnesium and so on. Its volatile oil contains mannitol, n-sunflower aldehyde, nonanal and linalool, which can appetizer and awaken the spleen. Parsley also contains potassium malate. The amount of vitamin c in parsley is much higher than that in ordinary vegetables. the average person can meet the demand for vitamin c by eating 7 grams of coriander leaves; the carotene content in parsley is more than 10 times higher than that of tomatoes, beans and cucumbers.

Key points of cultivation and management of coriander in solar greenhouse

I. Variety selection

Select varieties with strong disease resistance, heat resistance and high yield, such as four seasons coriander, Korean cilantro, Thai parsley and so on. Second, sowing seeds

The suitable sowing date is determined according to the local climatic conditions, generally from mid-October to early November in Huang-Huai region. 5000 kg of rotten organic fertilizer was applied every 667 square meters (1 mu), ploughed and raked to make a flat bed 1.3m wide. When sowing, rub the fruit apart to separate the seeds. Then soak the seeds in warm soup for seed disinfection, dry and sow the seeds. Using sowing, after sowing, flat, step on, watering, about 10 days can emerge seedlings. III. Key points of management

When the seedling height is 4-5 cm, timely interseedling and weeding, remove concurrent seedlings, overdense seedlings and weak seedlings, and keep the distance between seedlings 4-5 cm. Generally, it is not watered at the seedling stage, but it should be watered for 2 or 3 times in the peak growth period, which should be watered with small water rather than flood irrigation. Follow the water to fertilize, generally apply rotten human feces and urine or organic compound liquid fertilizer. Temperature control, the room temperature should not exceed 25 ℃ during the day, the temperature should be released in time if the temperature is too high, and the temperature should be kept at 10: 15 ℃ at night, not less than 10 ℃. IV. Pest control

The main diseases of parsley in solar greenhouse are Rhizoctonia solani, leaf spot, Botrytis cinerea and so on. In addition to paying attention to ventilation and light transmission and strengthening the management of temperature and humidity in the greenhouse, it is necessary to spray and control in time at the initial stage of the disease. 45% chlorothalonil smoke remover can be used in the evening, 250 grams per 667 square meters, dark fire lit for one night; spray 50% sulfur suspension 200 times 300 times liquid, 2% Wuyisin water agent or 2% agricultural antibiotic 120 water agent 150 times liquid and other control, once every 7 days for 2 times 3 times in a row. In addition, the prevention and control of aphids should be strengthened to prevent the spread of virus diseases, which can be controlled by spraying 1500 times of imidacloprid wettable powder or 20% permethrin 2000-3000 times. Pay attention to discontinue medication 7 days before harvest. 5. Harvest

When the plant height is about 40 cm and has 18-20 leaves, it can be harvested in batches as needed, and parsley in solar greenhouse can also be harvested at one time, tied up after harvest, put into plastic bags and sold on the market.