How to prevent missing seedlings in onions? Practical seedling-preservation methods shared

When growing onions, nobody wants to see missing seedlings, but this is something everyone runs into often. So if you want to prevent this situation, from which aspects should you prevent it? Let's take a look below at how to prevent missing seedlings in onions.

1. Land management

The first thing to do is land management, because many onion seedlings easily fail to take root and sprout due to this factor. This process mainly includes several aspects such as sterilizing the land, leveling the land, and nourishing the soil. Sterilizing means eliminating substances such as weeds and pathogens hidden in the soil to avoid harming the seedlings, then loosening the soil and leveling it into a suitable state for planting, and finally applying appropriate fertilizer and watering to make the soil more fertile. In this way, the soil-related factors that cause missing seedlings are reduced to the greatest extent.

2. Reasonable planting

Reasonable planting here means that during planting, the planting depth and other aspects all meet the standard, avoiding the death of seedlings caused by planting too deep or too shallow. The best planting depth for onion seedlings is about 3 cm. First close up the soil, making sure the soil being closed up is loose and free of clods. Then press the soil down a bit so the soil can fully wrap around the onion seedling. This way, the situation where the seedling cannot come into contact with the soil is less likely to occur, and missing seedlings can be effectively prevented.

3. Heat preservation and moisture retention

Nobody can control the climate. The weather may be fine at planting time, but it may keep changing afterward. To prevent missing seedlings caused by weather, the only thing to do is do a good job of heat preservation and moisture retention. If the temperature is relatively low, then it is best to use plastic film for heat preservation, especially for open-air planting, where special attention must be paid to this. Next, if the soil is relatively dry, you can water after covering with plastic film. This can effectively reduce moisture evaporation and ensure the onion seedlings' water needs. Doing these two things well can also reduce the occurrence of missing seedlings.

4. Reasonable culling

Nobody can guarantee that all the onion seedlings they plant come from good seeds, nor can they guarantee that all the ones that grow are high quality, but you can carry out selection and replace these poor-quality seedlings with high-quality ones. Reasonably culling some seedlings that do not meet the standard can effectively reduce the harm these weak seedlings do to those around them. Next, on the basis of these seedlings, you can continue to plant new seedlings to reduce missing seedlings. Things like diseased seedlings and dwarfed seedlings are generally the first to be culled, because they have a certain tendency to spread.

The above are some methods for preventing and controlling missing seedlings when growing onions. If you run into this, you should first find out what is causing it, then solve it in a targeted way, so it will not easily happen again afterward.