The planting time of ginger is generally from late April to early May, and it is appropriate to plant ginger in early and middle March in low-heat valley areas, and it can be appropriately early after germination or plastic film cultivation. Ginger likes warm and humid environmental conditions, and is not resistant to low-temperature frost. It begins to sprout above 16℃, and stops growing below 15℃ when the seedling growth temperature is 20~25℃, the stem and leaf growth temperature is 25~28℃.

Ginger seeds should be carefully selected before sowing, and moldy, rotten and withered ginger pieces should be removed. It is better to choose 50-100g pieces of ginger with1-2 strong buds for planting ginger. Too large pieces of ginger can also be sown, but the amount of seeds is large and the cost is high. It can be cut with a knife or opened by hand, but the wound should be disinfected with plant ash or lime before sowing.

Before sowing ginger, it is best to soak the seeds with chemicals to accelerate germination. Methods Spread the ginger and dry it for1-2 days, then soak the seeds with 1:l: 120 bordeaux solution for 10 minute, then take out the ginger, stack it layer by layer with moist sand and cover it with a film, with a thickness of about 30-40 cm. The amount of seeds used per mu is 300-500 kg.

When planting ginger, you must pay attention to watering. Ginger is not drought-tolerant, so the pot soil should not be too dry. You should water it frequently, but remember not to accumulate water. There is also that ginger is not resistant to exposure, so pay attention to shading if the light is strong.

Extended data

Ginger contains spicy and aromatic components. The pungent component is "gingerol" in an aromatic volatile oil. Among them, there are mainly gingerol terpenes, fennel, camphorterpenes, gingerol, eucalyptus oil essence, starch, mucus and so on.

Ginger can weaken the action of pepsin and enhance the action of lipolytic enzyme. Ginger can seriously destroy the amylase in pancreatin, which significantly reduces the digestion of starch by pancreatin. It can also inhibit β -amylase in amylase and hinder starch saccharification.

Ginger can act on sympathetic nerve and vagus nerve system, which can inhibit gastric function and directly excite gastric smooth muscle. The absorption promotion of sulfadiazine was studied by small intestine reflux method in rats. The results show that the water extract of ginger has obvious absorption promotion effect, enhances its bioavailability and gives full play to its curative effect.

Ginger extract can inhibit the vomiting of dogs caused by copper sulfate. The mixture of zingerone and zingerone separated from ginger also has antiemetic effect, and the minimum effective dose is 3mg, which is ineffective for dog vomiting caused by central emetic apomorphine and pigeon vomiting caused by digitalis, so ginger is considered to have peripheral antiemetic effect.

References:

Baidu encyclopedia entry ginger