Detailed Explanation of Field Management Techniques for Celtuce

Celtuce is one of the most common vegetables in our daily lives. Both its stems and leaves are edible, each with its own distinctive flavor. Celtuce has strong adaptability and is widely grown in China. So how should it be managed during cultivation? Let's take a look at the detailed introduction below.

1. Fertilization

Celtuce has a relatively high demand for fertilizer during cultivation. In order to ensure normal growth and obtain a higher yield, fertilization work must be taken seriously. During the entire growth period, topdressing should be carried out three times. The first time is 10 days after transplanting, mainly applying some urea or organic fertilizer, generally by irrigation to avoid excessive concentration that could affect seedling growth. The second fertilization is when celtuce grows to 25 cm, still mainly with urea to promote its growth, generally applying 30 jin of urea per mu. The third fertilization is when the fleshy stem expands, mainly with urea, combined with foliar topdressing by spraying 0.3% potassium dihydrogen phosphate to prevent stem cracking.

2. Cultivation and Weeding

Next, attention should be paid to weeding. When we apply large amounts of chemical fertilizer, mainly nitrogen fertilizer such as urea, not only does celtuce grow faster, but weeds also grow faster. Therefore, weeding should be done frequently to prevent weeds from competing with celtuce for nutrients. Long-term application of chemical fertilizers will reduce the organic matter content of the soil, easily causing soil compaction, which is unfavorable for the growth of underground stems and roots. Therefore, timely cultivation is needed to loosen the soil, increase soil permeability, and promote the growth of underground stems and roots.

3. Irrigation

Water management for celtuce is also extremely important. When the stem begins to expand, water should be applied in a timely manner, combined with a small amount of nitrogen and potassium fertilizer to promote rapid stem expansion and increase yield. However, watering should not be done too early or too late. Watering too early will cause excessive leaf growth, consuming too many nutrients and hindering stem growth; for low-temperature-resistant varieties, it makes them highly susceptible to disease. At the same time, watering should not be excessive. If celtuce lacks water, leaf growth will be inhibited. During long-term drought, heavy rain can easily cause stem cracking, so the soil should be kept moist during the mid-to-late growth period.

4. Pest and Disease Control

Pests and diseases are also one of the reasons affecting the quality and yield of celtuce. The main diseases of celtuce include downy mildew and sclerotinia, while the main pest is aphids. Timely removal should be carried out, removing old leaves and diseased leaves to prevent diseases. When disease occurs, spray Bordeaux mixture for control, spraying once every 7-10 days, with excellent results.

The above is an introduction to field management techniques for celtuce. We hope it can help you. If you want to learn more related knowledge, please stay tuned to us.