Planting method and time of ginger
First, planting time
The planting time of ginger is determined by the temperature. In Hunan, Wuhan and other places, ginger is generally planted in April and May every year, while in the valley areas of northwest and southwest, it is generally planted in March. The optimum temperature for ginger growth is about 25 to 30 degrees, and the lowest temperature should not be lower than 15 degrees, so you can determine the planting time according to the temperature change in your area.
Second, the planting method
1, land selection, seed selection
Ginger is very sensitive to water. In general, its drought resistance and waterlogging tolerance are not good, so when we choose the land, we should try to choose sandy soil with strong permeability and be close to the water source, which is convenient for irrigation and drainage. As for the selection of ginger, it is to choose healthy ginger slices with strong tubers and good color, and carefully observe whether the ginger buds survive.
2, sowing, density
When sowing, you can soak the ginger slices in the medicine for ten minutes, then mix them with sand, put them in a small space and seal them with plastic film. Generally, seeds can be sown in five days. When sowing, the sowing interval of each plant is 30 cm, and each row is 40 cm. Then try to arrange the sprouted side in a row, cover it with a thin layer of soil, and finally lay a layer of straw on it.
3. Base fertilizer and topdressing
Sufficient base fertilizer must be applied after planting. Generally, an acre needs an average of 3000 kilograms of organic rot fertilizer, supplemented by 30 kilograms of potash fertilizer. The first fertilization was when the ginger seedlings grew to 25 cm high. In rural areas, manure can be mixed with water for irrigation, or 20 kilograms of urea can be mixed with water for spraying.
Autumn is coming, that is, the second fertilization is carried out in early September. This time, the tuber is mainly grown, so the compound fertilizer with large elements and high potassium fertilizer are mainly applied, and the fertilizer dosage is 45 kg and 30 kg respectively. The last fertilization was when the tuber was slightly larger than three thumbs, that is, one month after the second fertilization. The types of fertilization are the same as the second fertilization, but the dosage is halved.
4, pest control
The main diseases that harm the growth and affect the yield of ginger are rot and spot disease. Rot usually lasts from July to August in summer, even until the beginning of September. When the diseased plant is found, it should be pulled out in time, and the soil next to the plant should be dug to avoid bacterial infection, and then a layer of lime should be sprinkled to fill the ground. The control method of spot disease is to spray 50% chlorothalonil 800 times every 7 ~ 10 days/time. The main pests affecting quality are ginger moth and ginger maggot. We generally use trichlorfon or phoxim for foliar spraying control.