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Sausage arrangement for the production of cabbage
(1) Early-maturing cabbage varieties that can withstand cold weather are typically planted in protected environments. These include greenhouses and modified Yangshuo structures, with planting times ranging from mid-December to mid-January. In early March, they are grown in small arch tunnels. Seedlings can also be started in greenhouses as early as late November, and transplanted into greenhouses or improved Yangshuo systems between late January and early February.
(2) For spring cabbage, early-maturing winter varieties are preferred. In the single-crop regions of Northeast China, North China, and Northwest China, seedlings are planted in greenhouses in early February. They are then moved to cold beds or plastic arch sheds and finally transplanted into open fields from late April to early May. In major two-crop areas such as North China, Xi'an, and Jinan, planting begins in Yangshuo from late January to early February, or seedlings are started in greenhouses in early February before being transplanted into Yangshuo. In southern regions, seedlings are planted in open fields from mid to late October, with full planting taking place from late November to early December, and harvesting occurring from April to May. Precocious spring cabbages are ideal for overwintering and can be prepared, planted, and harvested after the ground thaws. They can also be intercropped with crops like corn, cotton, tomatoes, or wax gourds.
(3) Heat-tolerant and disease-resistant medium-maturing varieties are chosen for summer cabbage. Seedlings are sown in batches from late March to early May, and transplanted from May to June, with harvests taking place from July to September. Shade nets and insect nets are used for protection during cultivation. Summer cabbage can be grown before short-day spinach and serves as overwintering vegetables in early spring. It is also suitable for autumn crops or for picking up overwintering vegetables.
(4) Large-scale late-maturing varieties are selected for single-crop areas in Northeast China, North China, and Northwest China, where frost-free periods are short. Seedlings are planted in Yangshuo from late March to mid-April, and transplanting occurs from late May to late June, with harvests from September to October. In dual-crop areas such as North China, Xi'an, Jinan, and Taiyuan, early and medium-maturing varieties are chosen. Seeds are sown in open fields from mid-to-late June, transplanted in late July to early August, and harvested from October to November. In the middle and lower reaches of the Yangtze River, planting takes place from June to July, with harvests from late October to November. From late August to September, a second harvest occurs from December to February. In South China, planting is done from June to August, with shade nets and rain covers used during the nursery stage. Transplanting occurs after 40 days. Autumn cabbage is commonly used as spring vegetable production.
(5) For winter cabbage in greenhouses, early and medium-maturing varieties with low temperature tolerance and weak light resistance are selected. These are planted from September to October and transplanted from late October to late December, with harvests around New Year’s Day and the Spring Festival.
(6) In areas such as Henan and the central and southern parts of Shandong, where winter cabbages are overwintered, the average January temperature is about -1°C. Early and medium-maturing varieties with strong cold resistance are selected, and shaded, rainproof shelters are provided from late July to early August. Seedlings are transplanted from late August to early September. During winter, plants are covered with mulch, non-woven fabrics, and small sheds, with harvesting taking place from mid-February to early April. To maintain soil health, it's recommended to rotate with non-cruciferous vegetables for more than three years.