What fertilizer is best for onion seedlings

Fertilizing time for onion seedlings

Onion seedlings will be fertilized in late August, early September and early October, generally once every 12-15 days, which can improve their quality and yield.

Generally, green onions can be fertilized after the Beginning of Autumn, the White Dew, and the Frost, which will have a significant impact on their growth.

What fertilizer to use for onion seedlings

1. Spring sowing and fertilization : When planting spring onions, you can apply sufficient base fertilizer. It is a fertilizer-loving plant, so don’t be afraid of fertilizer damage. Mainly use nitrogen fertilizer, combined with phosphorus and potassium fertilizer, once every 20 days or so.

2. Autumn sowing and fertilization : For autumn sowing, fertilizer should be controlled before the cold winter to avoid premature bolting. After the seeds turn green, apply urea fertilizer once during watering. In the later stage, ammonium sulfate can be applied at intervals of 20 days, and it must be combined with sufficient watering. This will allow them to grow faster and increase yields.

Onion seedling fertilization method

When planting onion seedlings, you can apply decomposed base fertilizer. During the growth period, focus on the combined application of organic fertilizer and quick-acting chemical fertilizer, and pay attention to the combination of nitrogen, phosphorus and potassium. Fertilizer can be applied once before winter, and no topdressing is needed afterwards.

Precautions for fertilizing onion seedlings

When fertilizing the onion seedlings, you can combine it with watering. About half a month before harvesting, you can apply an appropriate amount of urea. You also need to spray the leaves in time according to its growth conditions. This can ensure the greenness of the onion plants and increase its yield. Remember not to use concentrated fertilizers.