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How to plant a good autumn buckwheat
Buckwheat is a fast-growing crop that takes only 70–80 days to mature. It's highly adaptable, nutritionally rich, and has long been used for food, disaster relief, and filling gaps in agricultural production. Successful buckwheat farming requires attention to four key factors.
First, timely sowing is essential. Buckwheat follows the saying, "Early sowing brings three days of growth without seeding, while late sowing leads to three days of struggle." Autumn buckwheat should be sown around the time of "Early Autumn" and "Bai Lu," which marks the transition into cooler weather. Before planting, seeds should be soaked in warm water (30–40°C) for 10 minutes to improve germination. After preparing the soil with a rake, sow about 5 kg per 667 square meters and cover with a thin layer of soil, approximately 3 cm deep. This method not only increases the germination rate but also helps the plants emerge more uniformly and grow more vigorously.
Second, proper fertilization plays a crucial role. Applying phosphorus and potassium fertilizers significantly boosts yield. For autumn buckwheat, it’s best to use a base fertilizer, such as 667–1000 kg of pig manure per 667 square meters, along with 15–20 kg of phosphate fertilizer and 30 kg of wood ash. These nutrients provide a strong foundation for healthy plant development.
Third, effective field management is vital. Buckwheat fields must be well-drained to avoid waterlogging. If dry conditions occur after sowing, regular irrigation is needed to keep the soil moist and support seedling growth. In areas without irrigation, diluted manure water can be applied in the morning and evening before the seedlings emerge. This helps boost nutrient levels and strengthen the young plants. Since buckwheat grows slowly and is prone to weeds, weeding should be done when the seedlings reach 6–8 cm in height. Weak plants should be removed, and a second cultivation should be performed before flowering to promote root development.
Lastly, pollination assistance is important. Naturally, buckwheat has a low seed-setting rate, often below 20%. To improve this, bees can be introduced during the flowering period, or artificial pollination can be done 2–3 times. One effective method involves using a nylon rope held by two people, who gently drag it over the tops of the plants. This action shakes the flower clusters, helping pollen spread more effectively and increasing the chances of successful pollination.
By following these practices, farmers can maximize buckwheat yields and ensure a healthier, more productive harvest.