(1) Soil Preparation and Timely Planting: In the first year, it's essential to select ginger rhizomes from healthy, disease-free, and high-yielding plots. After harvest, choose rhizomes that are plump, round-headed, uniform in size, bright in color, and free from pest damage. Before sowing, ensure proper germination. It is recommended to use locally suitable varieties such as Shandong ginger, Laiwu slice ginger, Anhui Tongling ginger, Shaanxi city solid turmeric, Guangzhou meat ginger, and Changsha red melon ginger.
Ginger has a shallow root system and is sensitive to drought and diseases like warts. It should not be planted in the same area for consecutive years. It’s best to rotate crops every 3–4 years. Prior to planting, apply sufficient base fertilizer. In winter, it’s ideal to loosen the topsoil, making it easier to work in spring. Apply 45,000 kg/ha of organic manure, 750 kg/ha of superphosphate, or 75,000 kg/ha of well-rotted manure, along with 2,250 kg/ha of wood ash. In southern regions, green manure like Ziyunying can be grown during winter and incorporated into the soil in the following spring, combined with 1,500 kg/ha of compound fertilizer. Sow flat or in furrows, and if necessary, add fertilizer directly into the planting furrow.
(2) Top-Dressing During Growth: Ginger is highly responsive to fertilization. In addition to the base fertilizer, several top-dressings are needed throughout the growing season. During the germination stage, no additional fertilizer is required, as the plant relies on stored nutrients. However, during the seedling phase, a small amount of fertilizer can help promote strong growth. A seedling fertilizer can be applied, such as 15,000 kg/ha of composted human waste or 150 kg/ha of urea.
As the plant enters the "three-strand eel" stage in early autumn, this is a critical growth period and a key time for nutrient uptake. At this point, a "turning fertilizer" should be applied, which can include 45,000 kg/ha of organic manure or 1,050–1,200 kg/ha of cooked bean cake, combined with 225–300 kg/ha of compound fertilizer. In northern regions, by late September, the rhizomes enter a rapid growth phase. To encourage expansion and prevent early aging, an additional 450 kg/ha of compound fertilizer is recommended. After the start of autumn, combine watering, weeding, and soil cultivation 2–3 times to maintain soil health and nutrient availability.
Harvesting should be done promptly based on the intended use of the final product.
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