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What is the cause of yellow cucumber seedlings?

Published: 2024-11-22 Author: mysheen
Last Updated: 2024/11/22, Cucumber is a kind of daily eat plant, in the planting process often due to poor care will appear yellow leaves. What is the reason for cucumber seedling yellow leaves? First, the cucumber seedling leaves yellow, what is the reason for the cucumber seedling leaves yellow, there is severe water shortage or excessive watering,

Cucumber is a kind of plant eaten every day, and its leaves often turn yellow due to poor care in the process of planting. What is the reason for the yellow leaves of cucumber seedlings?

What is the reason for the yellow leaves of cucumber seedlings

The causes of yellow leaves of cucumber seedlings are serious lack of water or excessive watering, low growth temperature, improper fertilization, soil consolidation or salinization, lack of trace elements, erosion of diseases and insect pests and so on.

Second, how to solve the problem of yellow leaves of cucumber seedlings

1. Watering should be timely and appropriate, and do not be too waterlogged and dry.

2. Cucumbers like temperature and are not resistant to cold. The suitable temperature for growth is 25-30 ℃ in daytime and 15-18 ℃ at night. Low temperature at seedling stage will affect root growth, resulting in yellowing of leaves, so it is necessary to increase the temperature of the seedbed.

3. Too much fertilizer supply will lead to yellow leaves, which should be diluted by watering. Use seedling fertilizer at seedling stage and top dressing for one or two times.

4. Soil hardening, salinization and acidification will also affect the root system and cause leaf yellowing. At this time, loosen the soil in time, and apply some soil improved organic fertilizer or other fertilizers. The fertile soil rich in organic matter should be selected for cucumber planting, and the pH value of 6.5 is the best.

5. Trace elements such as iron, zinc and boron are very important to the growth and development of cucumber, and the absence will lead to yellowing of leaves. At this time, it is necessary to supplement nutrition and top dressing.

6. When cucumber is eroded by diseases and insect pests, the leaves will appear yellow and green mottled. In this case, we should choose appropriate chemicals for control, and fungicides can be added properly when spraying foliar fertilizer.

When planting cucumber, we should observe carefully and find that after the leaves of cucumber seedlings are yellow, we should combine the situation at that time, analyze the first cause and consequence, and then take corresponding effective measures.

 
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