Planting method of Alpinia officinarum

Millet, also known as rhizoma kaempferiae, is drought-tolerant, barren and afraid of soaking. Most cultivated land in Nansheng belongs to black mud field, which is rich in carbon, soft and hydrophobic and suitable for the growth of Alpinia officinarum. Nansheng is located in the south of China and belongs to Huazhou City, Guangdong Province. The natural climate and weather here are just right for planting galangal. The quality of galangal produced by Nansheng is the best. Its galangal is brown and slightly shiny, and has the characteristics of thin skin, thick meat, crisp meat and tender meat, spicy and sweet taste. Has the effects of resolving phlegm, promoting blood circulation, promoting digestion, stimulating appetite, invigorating spleen, promoting diuresis, eliminating dampness and preventing epidemic. According to elders' legend, during Guangxu period of Qing Dynasty, the plague was prevalent in Huazhou and neighboring counties, and villagers in Nansheng area ate ginger to prevent immune diseases and make the surrounding area peaceful. In addition, Nansheng Jiang Shui is served with the local famous dish "White Cut Chicken", which is fragrant but not greasy and full of flavor. Restaurants, restaurants and families all use ginger as the main seasoning, and they are used to each other. There is also spice powder used by local chefs for seasoning, and more ginger in the south. The food is particularly delicious. The main cultivation techniques of Alpinia officinarum are introduced as follows for reference. First, choose the right ginger.

Choosing the right kind of ginger is the key to high yield. "Plant half the ginger", the seeds should be healthy ginger with uniform growth, moderate size, complete epidermis, fresh meat color, maturity and no pests and diseases. Never plant in places where the epidermis falls off, the meat changes color, or there are water stains and rot. For example, ginger seeds selected in diseased areas must be disinfected before planting to prevent them from entering diseased areas. Second, choose the right land.

Land selection is also an important part of high yield. It is advisable to choose sandy soil with high terrain, good drainage and irrigation, loose soil and good fertility for planting, preferably newly reclaimed land or land planted with ginger in a few years. Continuous cropping of cultivated land is prone to diseases, and soil disinfection should be carried out before planting. You can spray 0.5 kg of 50% mancozeb, 50% carbendazim powder and 400 kg of water evenly 2 ~ 3 days before planting, and then plow and harrow, and you can plant in a few days.

Third, choose a good planting season.

The planting of Alpinia officinarum is seasonal, so it should not be too early or too late. Generally, it should be planted around the vernal equinox and Qingming, and it should not exceed long summer at the latest. Before planting, the seeds should be dried 1 ~ 2 days to promote the germination of ginger seeds. Carefully prepare the soil, harrow the soil, remove weeds, open the drainage ditch, then open the border with a width of 2.5 ~ 3 meters, open the line, apply base fertilizer, plant spacing is about 15 cm, and each mu of ginger seeds is about 200 kg. After planting, cover with soil fertilizer or fine soil. If the soil is dry, it should be watered or soaked to promote early emergence. If possible, cover the border with grass to keep warm and moist to ensure the health of seedlings.

Fourth, strict management.

To obtain high yield of Alpinia officinarum, strict management is necessary. After planting, drainage and irrigation should be done well. If the soil is too dry, it should be irrigated, and if it is too wet, it should be ditched and drained to prevent the ginger field from waterlogging. After soil compaction, loosen the soil in time to facilitate seedling emergence. Check it in time after it appears. If missing plants are found, transplant seedlings to make up for the deficiency or replant them to ensure the consistent growth of the whole seedling. Add fertilizer to replant seedlings. Timely intertillage and weeding, loosen the soil, in order to facilitate the growth of Jiang Miao.

Verb (abbreviation for verb) Fertilize reasonably.

Alpinia officinarum is mainly fertilized with organic fertilizer, with sufficient base fertilizer, more than 2,000 kilograms of decomposed organic fertilizer per mu, and long fertilizer efficiency to ensure its growth needs; Fertilization can be combined with intertillage weeding, spraying human and animal manure, or adding a small amount of chemical nitrogen fertilizer to promote rapid growth; July-August is the vigorous growth period of ginger, and more fertilizer is needed. Topdressing can be carried out according to seedling condition and seedling potential. At this time, nitrogen fertilizer should be lightly applied, and then phosphorus and potassium fertilizer should be applied to ensure a good yield of ginger. If the growth is vigorous, it is not necessary to apply nitrogen fertilizer, but only lightly apply phosphorus and potassium fertilizer.

Sixth, pay attention to the prevention and control of pests and diseases

Poor management of ginger is prone to pests and diseases, especially in the case of continuous cropping or diseased ginger species, which will cause leaf rot, root rot and ginger rot. There are many fungal diseases in general. Once found, it should be sprayed immediately to prevent diffusion, and Bordeaux mixture or other fungicides can be used. Good management, generally less pests and diseases, no need to control.

Leaf spot control

Occurred in August ~ 10, yellow round or oval spots appeared on the leaves, and then the spots dried up into white films or perforations, and the roots became thin or rotten.

Prevention and control methods: pay attention to soil selection, properly arrange ditches during soil preparation, and drain water in time after rain, which can reduce the occurrence.

At the initial stage of the disease, 500 times solution of 50% carbendazim wettable powder, 300 times solution of 70%  foscarnet sodium wettable powder or 50% benomyl wettable powder 1 500 times solution can be used to irrigate the roots alternately, and the plant liquid medicine is 0.5 liter, every 5 days or so 1 time, for 2-3 times. If it is confirmed that root rot is caused by waterlogging, spray the leaves with 0.02ppm brassinolide. Spraying once every 10 day for 2-3 times continuously to improve the stress resistance of plant roots. In addition, we should also pay attention to digging ditches outside the ginger border to make the waterlogging in the ginger border seep out and eliminate the waterlogging.