For facility vegetables, high temperature and strong sunlight in summer, long sunshine time, and heavy rainfall in rainy season, these environmental conditions are not conducive to the growth of vegetables. Once the management measures are not in place, the growth of vegetables is prone to abnormalities, especially the occurrence of physiological diseases.
Soil salinization leaves are more yellow
Symptoms
Vegetable leaves are yellow and small, but no yellow-green mottled symptoms of viral disease appear. After soil testing, it was found that the content of hydrolyzed nitrogen, available phosphorus, and available potassium was too high; the content of chloride ion and sodium ion in the soil was too high; and the salt content in the soil was too high, which resulted in salinization of the soil.
Prevention measures
In the past two years, this situation is very common. The root cause is soil salinization, and the specific control method is to improve the soil.
The first is to apply microbial inoculants to reduce the soil salt content; the second is to ensure the activity of microbes to fully exert their effects; the second is to increase the application of organic fertilizers to promote the formation of soil aggregate structure; finally, supplement plant nutrition. In addition, when the plant grows weak, the vegetable farmers need to keep less fruit to reduce the burden on the plant.
Sunburn frequently causes secondary diseases
Symptoms
Sunburn is a phenomenon in which plants are damaged by heat. In the high temperature and dry seasons of summer and autumn, direct sunlight on bare stems, leaves and fruits can cause burns when the surface temperature reaches above 40℃.
Prevention measures
High temperature and strong light are the main causes of sunburn. Therefore, the management should focus on avoiding the appearance of high temperature and strong light in the shed.
It is necessary to cool down the shade in the shed. In addition, it is also very effective to keep leaves reasonably to shield the fruits. At the same time, we must pay attention to timely watering to ensure sufficient water supply for vegetables to avoid sunburn.
During the fruit expansion period, foliar fertilizer containing trace elements should be sprayed or applied in time to promote the resistance of the fruit to sunburn and reduce the incidence of sunburn.
Water supply imbalance vegetable wilt
Symptoms
Vegetable wilt is caused by the imbalance of water supply, but the specific causes of water loss are different. Less roots, damaged roots, root diseases, etc., which affect water absorption and transportation, will indirectly cause the plants to wilt. At the same time, the water absorption capacity of the root system is weak and the plant transpiration is intense after a long period of time. The imbalance between the two water supplies is the cause of acute wilting.
Prevention measures
The first is wilting caused by poor root function. In daily management, vegetable farmers should ensure a balanced nutrition and choose fertilizers containing functional substances to promote and maintain roots.
Secondly, it weakens the influence of high temperature and strong light. The high temperature and strong light in the shed environment, whether it is sudden or long-term, may cause the plants to wilt. Therefore, sunshade cooling is the key to summer management.
Then improve the plant's stress resistance. In the daily management of vegetable growers, they should strengthen the maintenance of roots and leaves. In the case of normal nutrition supply, add alginic acid, chitin, amino acid products, spray up and down to improve the plant's resistance to stress.
Disclaimer: Some articles of this website are transferred from the Internet. If the legal rights of third parties are involved, please inform this website for processing. phone
Anti Static Protective Clothing
Hongxing Factory
Dongying Hongxing is located at Dongying City, Shandong Province China since 1995.
We have 30 categories of products, including Covid-19 products, frock, protection shoes, safety belt, Special gloves.
Our main customer in China is Sinopec, Petro China, Energy company, steel company and Tabacco Company in other countires. Our factory have 500workers and 22 technical employees and invest thirty eight million dollars .
FAQ
1. What are your main products ?- Safety shoes
- Protective helmet
- Work clothes
- Safety cloves
- Protective equipment and masks
2. Can you offer OEM ?
Our company accep OEM service , if you need, please inform us of your specific requirements
3. What's your mode of transportation ?
By sea, By air, By train, By truck, as your request. We also do a good job to deliver goods to your destination.
4. What's your payment terms ?
T/T, L/C, Paypal..... If you need to pay via other ways, please negotiate with us.
5. Can you offer sample ?
Yes, we can offer samples to help you check type and quality.
6. Are you manufacturer or trader ?
We have own factory in Donying city, Shandong province, welcom to visit our factory !
Anti Static Protective Clothing,Anti Static Suit,Anti Static Raincoat,Anti Static Clothes
Dongying Hong Xing Labor Protection Products Co.,Ltd. , https://www.hongxinglabor.com