1, select excellent varieties.
Choosing new seeds with full shape, bright color and fresh smell is the basic premise for spinach to emerge quickly after sowing. Full new seeds have perfect embryo development, strong vitality, stronger absorption and transportation ability of water and nutrients after sowing, and faster germination speed.
2. Soak seeds reasonably to promote germination
Spinach seeds are soaked in water at room temperature (about 25℃) for 12- 18 hours, then refrigerated at 0-5℃ 12-24 hours, and then placed at 22-25℃ to accelerate germination. Soaking seeds to accelerate germination is a common production measure to promote the rapid germination of spinach seeds and ensure the neat and healthy seedlings.
3. Choose suitable soil for sowing.
Spinach is suitable for sowing in loam or sandy loam with good air permeability. In the process of germination, spinach will undergo severe respiration to decompose its own nutrients for its own growth. If the soil is poorly ventilated, the respiration will be slowed down due to insufficient oxygen supply, and the germination rate will also be slowed down.
4. Ensure adequate water supply.
Maintaining 85-90% soil relative humidity after sowing is the most suitable humidity condition for spinach seed germination. Therefore, water should be poured on the soles of your feet before sowing. If drip irrigation or sprinkler irrigation is used, it is necessary to break the surface hardening layer by scraping and hoeing after the soil surface is dried to enhance the air permeability of the soil.
5. Provide suitable temperature conditions.
The suitable temperature range for spinach germination is 20-25℃. Suitable temperature range is the premise for spinach seeds to absorb water and nutrients, and embryo cells can divide quickly to achieve growth. If the temperature is too low, the cell division rate will slow down and the germination rate will also slow down. If the temperature is too high, it is easy to form thin and overgrown seedlings.