Peppermint, also known as banjo, is a mint perennial herb that is grown on the stems and leaves. Because it contains peppermint oil, it has a special strong cool scent. All regions in China have been cultivated, especially in Jiangsu and Zhejiang. However, most of them are cultivated as medicinal materials or food additives. As a specialized vegetable cultivation, it has been gradually developed in recent years. Its tender stems and leaves can be eaten as cold, detoxifying and refreshing. The taste is refreshing and refreshing, and it is popular among people. It is a kind of green leaf vegetable with good development prospect. Most cultivation methods and season peppermint are open field cultivation, and the northern region can also be cultivated using protective facilities or both open and protected facilities can be cultivated simultaneously. The cultivation season depends on the climate, and generally can be cultivated in frost-free seasons. For example, Guangdong, southern Guangxi and Hainan can be cultivated throughout the year. Before and after the Qingming period in Jiangsu and Zhejiang, the open area can be in the 4 From October to October, it can be produced on the anniversary of the protection facilities. Mint's biological properties Peppermint root system developed. The plant height is about 1m, and it usually grows on the ground. Stems are tetragonal, stems above ground are red or blue, underground stems are white, leaves are oval or willow-shaped, green or reddish-red, and there are walnut lines on the leaves. There are serrations on the margins of the leaves, and the opposite leaves appear on the leaves. Small flowers, lavender. The seed is very small, yellow. Mint enjoys a warm climate, but it is both heat-resistant and cold-resistant; it is hi moist, but not tolerant. The soil has a wide adaptability. Generally, it can be cultivated except for the acid soil. However, it is suitable for cultivation in a deep, fertile loam soil or sandy loam soil. More shade-tolerant, can be interplanted with other crops, strong growth, high quality, fertilizer-based nitrogen fertilizer, potassium, phosphorus followed.
Cultivation techniques and harvesting methods of mint
(1) Seedling propagation Mint can be propagated using seeds, but most of the production uses vegetative propagation methods such as root propagation, cutting propagation, and propagation. Among them, the trifoliate propagation method is widely used and is widely applied. The method is: selecting a strong mother plant without pests and diseases, and making the stem and stem come into close contact with the ground, watering and top dressing twice, and applying 10-15 kg of urea per acre. After the adventitious roots of the stem sections are produced, each section is cut, and each ramet is a seedling.
(b) Site preparation Planting before maturity, 2000--2500kg of organic fertilizer applied per acre as basal fertilizer, deep-turning the land, smashing flat and fine, ditching for rake, hoe width width 1.5m. Colonization should be planted according to row spacing 50cm35cm, 1 per hole.
(3) Planting water after planting in the field should be planted to keep the soil moist and promote the survival of new roots. After easing the seedlings, timely weeding and weed control shall be conducted to keep the soil surface loose and free of weeds, and soil compaction may be avoided. In order to prevent the foliage from shading each other, the direction of growth of stems and underground stems in the ground should be guided in a timely manner so as not to be crowded. Every time after picking must be topdressing to promote the occurrence of new shoots, generally Mu recovery of manure or diluted urea fluid 1500kg.
(iv) Harvesting Peppermint can be planted for 1 continuous 2 - 3 year harvest in areas with suitable conditions. Usually about 20cm high stem, you can start harvesting stems and leaves for food. The southern region can be harvested throughout the year, with the highest yield from April to August, with the best quality, and the harvest interval is 15 to 20 days. In the northern region, the use of protective facilities for cultivation can also achieve the purpose of annual supply.
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