What is the cause of yellow cucumber seedlings?
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.
- Prev
Control methods of canker of Wo Citrus
Canker is one of the most common diseases of mandarin. To damage young leaves and immature fruits, it will usually lead to fallen leaves, fruit, and even withered shoots, reducing the tree potential. So what are the prevention and control methods of fertile orange canker? In fact, there are three main types of methods, namely
- Next
When will Jiangxi red bayberry mature
Jiangxi is one of the famous bayberry producing areas. Many people expect Jiangxi bayberry to mature and buy a little bayberry to taste fresh. The listing time of red bayberry is very short, if you miss it, you will have to wait for another year. So when will Jiangxi Waxberry mature? Jiangxi Poplar
Related
- A course of planting techniques and methods on how to grow carrots
- How to plant the latest tulips?
- Is it better to pick tea in the morning or in the afternoon? When is the best time for tea to be picked? what is the third or fifth tea?
- Launch Yuanxiao Happy combination Haocha + Tea Yuan healthy Taste
- Penghu Tourism "Fireworks 20 Parade with You"
- 2022 West Lake Happiness holds "Digital Revitalization Voucher" and draws iphone13 and laptop.
- Banqiao Fuzhou social houses are designed to change start-up combined with police elimination to create a safe and livable environment
- The convenient measure of "mechanical weeding" in Xinbei has been abused and the Agriculture Bureau has imposed heavy penalties on the illegal land consolidation.
- Changgeng University Joins Hands with Four Memory Factories to Rescue Memory Talent Shortage
- The list of Taiwan's top 100 MVP managers is listed by the Director-General of the Farmers' Association of Sanxia District.