Autumn buckwheat cultivation technique

First, the appropriate sowing. Buckwheat is warm and cool, afraid of frost, sowing too early and too late, will seriously affect the output. The suitable sowing date in the south of the Yangtze River in our province is around mid-August, and the Huaihe area is suitable for mid-August.
Second, the selection of good varieties. It is advisable to use buckwheat varieties with a strong growth period of 70-80 days, such as sweet glutinous rice no. 1, sweet glutinous rice no. 2, and small red flower bitter buckwheat. It is best to use the new seeds harvested that year.
Third, seed treatment. Soak the seeds for 2-3 days before sowing, and then use the method of soaking in warm soup to soak seeds, soak them in warm water at 40 degrees Celsius for 10-15 minutes, remove the floating mites, and remove the saturated stalks underneath. can. In places where pests and diseases are serious, pesticide dressing can be carried out. In order to shorten the sowing time to the emergence time, it can be simmered for 1-2 days after soaking in the warm soup, and the seed is immediately planted when the seed starts to sprout.
Fourth, fine land preparation. The buckwheat seedlings have poor top soil capacity, weak root development, and high requirements for land preparation. The cultivation and land preparation should be done as much as possible.
5. Add fertilizer. Buckwheat is resistant to thinness, but the application of phosphorus and potassium fertilizer can significantly increase yield. The fertilizer can be applied as a seed fertilizer, generally applying 3-5 kg ​​of diammonium Phosphate per mu at the time of sowing, and adding an appropriate amount of high-quality organic fertilizer. When applying, be careful to separate the fertilizer from the seeds to prevent burning.
Sixth, the method of sowing. There are mainly three kinds of broadcast, on-demand and broadcast. Spreading can be divided into two types: first arable land, seeded first, and first granulated. On-demand broadcasting usually takes 5000-6000 points per acre, and 10-15 seeds per hole. The sowing depth is generally 3-4 cm; the sowing amount is usually 2.5-3 kg per mu, and about 5 kg per mu.
Seventh, strengthen the field management. First, in addition to stains and drought prevention, ditch should be drained when planting to prevent waterlogging and dead seedlings. In case of drought during the emergence period, it is necessary to timely irrigate and moisten the sputum, or apply dilute faecal water in the morning and evening before emergence. Second, we must weed and weed in time. After the rain, it is necessary to break the soil layer in time. And weeding and weeding 2 times in the seedling height of 6-8 cm and before flowering. Third, we must supplement the fertilizer to prevent aging. From flowering to fruiting period, use 0.5 kg of urea, 200 g of Potassium Dihydrogen Phosphate, and spray 1-2 times with 60 kg of water. The fourth is auxiliary pollination. The natural pollination rate of buckwheat is low, and artificial pollination should be carried out during flowering. You can put the bee pollinated or gently pull it back and forth on the upper layer of the plant with rope or fine bamboo rafts at 8-10 am (for 3-5 days). The fifth is to prevent pests and diseases, and pay attention to the use of low-toxic pesticides.
Eight, timely harvest. Before the frost falls, when the whole plant has 707 grains dark brown, it should be grasped in the early and late harvest, and tied or tied, placed vertically indoors, so that the buckwheat is fully cooked.