(1) Soil Preparation and Timely Planting: In the first year, select ginger rhizomes from healthy, disease-free, and high-yielding plots. After harvest, choose plump, round-headed, uniformly sized, bright-colored rhizomes without pest damage. Before sowing, ensure proper germination. Choose local suitable varieties such as Shandong ginger, Laiwu slice ginger, Anhui Tongling ginger, Shaanxi city solid turmeric, Guangzhou meat ginger, Changsha red melon ginger, and others.
Ginger has a shallow root system and is sensitive to drought, prone to diseases, and does not tolerate continuous cropping. Therefore, it's best to plant in fields that have not been used for 3–4 years or more. Apply sufficient base fertilizer before planting. It’s recommended to loosen the soil in winter and prepare the field in spring for smooth planting. Mix 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 planted in winter, then turned into the soil in the following spring together with 1,500 kg/ha of compound fertilizer. Sow flat or in furrows. If fertilization is insufficient, apply fertilizer directly in the seed furrow.
(2) Top-dressing at Key Growth Stages: Ginger is highly responsive to nutrients. In addition to base fertilizer, several top-dressings are necessary throughout its growth cycle. During the germination phase, no additional fertilizer is needed as the plant relies on stored nutrients. Seedlings grow slowly and require minimal nutrients, but applying a strong seedling fertilizer helps promote robust growth. This can include 15,000 kg/ha of composted human manure or 150 kg/ha of urea.
During the early autumn period, when the plant enters the "three-strand eel" stage, this is a critical growth turning point and also a time when nutrient uptake changes significantly. At this stage, a "turning fertilizer" should be applied, which can be combined with 45,000 kg/ha of organic manure or 1,050–1,200 kg/ha of cooked bean cake, along with 225–300 kg/ha of compound fertilizer.
In northern regions, by mid-September, ginger rhizomes enter their vigorous growth phase. To encourage rhizome expansion and prevent premature aging, apply an additional 450 kg/ha of compound fertilizer. After the start of autumn, combine watering, weeding, and fertilization, and perform soil cultivation 2–3 times. Finally, harvest the ginger at the appropriate time based on the intended use of the product.
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