What is the best fertilizer for lettuce?

Lettuce fertilization time

It is best to fertilize lettuce in autumn from August to September. Generally, top dressing can be applied every 7-15 days to meet its nutrient needs during the growth period.

What fertilizer to use for lettuce

The growing period of lettuce is very short, so sufficient fertilizer is needed throughout the entire growth period. Attention should be paid to the reasonable ratio of nitrogen, phosphorus and potassium to improve its yield and quality.

How to fertilize lettuce

1. Apply sufficient base fertilizer

The base fertilizer lasts longer and can meet its nutrient needs during its growth period. Therefore, when renovating the soil, a large amount of well-rotted organic fertilizer needs to be applied. Because its fertilizer effect is slow, it can also be combined with quick-acting chemical fertilizers. This can increase the content of trace elements, improve the soil structure, and make the lettuce grow quickly.

2. Apply fertilizer at the right time

According to the growth conditions of lettuce, topdressing needs to be carried out reasonably. In order to increase the germination rate during the seedling stage, high nitrogen fertilizer and low phosphorus and potassium fertilizer can be applied together with watering. During the rosette stage during the peak growth season, a large amount of nitrogen and potassium fertilizers need to be applied. During the heart and head stage, control the application of nitrogen fertilizer, and mainly use potassium fertilizer.

Precautions for fertilizing lettuce

The fertilizer applied to lettuce needs to be diluted in advance, and concentrated fertilizer should not be used. In addition, it is a leafy vegetable and does not require much fertilizer. You need to pay attention to the application amount and strictly follow the instructions for standardized operation.