The row spacing of conventional wheat seeders is generally between17 and 20 cm, and that of rotary tillage and fertilization seeders is generally between 20 and 23 cm. The row spacing of the seeder determines the row spacing of wheat sowing. Generally, the wider the row spacing, the better, which is conducive to ventilation and light transmission. The reason why the rotary seeder has wider row spacing is because the seeds are sown as seedling belts, and the emergence of seedlings is more uniform.
Key points of sowing technology.
1, suitable depth. Usually 4 to 5 cm. Winter sowing has a cold climate, dry land, insufficient soil moisture and soft soil. Sowing in spring, the clay ground and soil are slightly wet.
2. Same depth. Adjust the legs and springs of the seeder, and strive for the same depth and good uniformity in each row.
3. Plant evenly. Improve the shaking technology, adjust the seed delivery of the seeder, keep the ditcher from blocking and avoid missing sowing.
4. Repression after broadcasting. The purpose of repression before and after sowing in the northern wheat area is to make the soil sink, which is beneficial to the close contact between seeds and soil, the absorption of nutrients by seedlings, and also has the functions of moisture preservation, cold protection and wind protection.