Bitter leeks, also known as goosefoot, August lettuce, and fat pig vegetables, are a highly nutritious green feed that is widely appreciated by various animals such as rabbits, sheep, pigs, chickens, ducks, geese, and even fish. These plants are not only rich in nutrients but also easy to digest, making them an ideal choice for livestock feeding. One of the key advantages of bitter leeks is their strong regenerative ability and resistance to pests and diseases, allowing them to be harvested multiple times throughout the year. With proper management, they can yield over 15,000 kilograms per mu, making them a high-yield crop.
Bitter leeks are adaptable to different soil types and have good drought tolerance, which makes them suitable for cultivation in a wide range of regions. However, it's important to avoid continuous cropping. Rotating with legumes like beans or wheat can help maintain soil fertility and reduce the risk of disease. The seeds are small and delicate, so careful preparation of the seedbed is essential, regardless of whether you're planting in the south or north.
These plants require significant amounts of fertilizer, especially nitrogen-rich sources. In the middle and lower reaches of the Yangtze River, it's recommended to apply 2,000–3,000 kilograms of manure or compost as base fertilizer. If the soil is low in phosphorus, adding 20–30 kilograms of superphosphate will improve growth. After each harvest, applying 5–10 kilograms of urea while loosening the soil can promote regrowth.
Sowing typically takes place from late February to early May. Pre-soaking the seeds before planting can significantly improve germination rates. In the Yangtze River region, March and April are ideal months for sowing. Drilling and sowing methods are commonly used, with a seeding rate of 0.5–0.7 kg per mu. The spacing should be around 25–30 cm between rows and 10–15 cm within the row, with a covering depth of 1–2 cm. In arid areas, it's important to ensure sufficient moisture after planting to support healthy growth.
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