Seedling Management Techniques of Tomato Seedlings in Autumn and Winter
The use of greenhouses, greenhouses and other facilities can be used for tomato seedlings in autumn and winter, to bring tomatoes to market earlier, and increase economic efficiency.
1. Temperature: Tomatoes are thermophilic vegetables, which can be maintained at about 27°C during the day and about 17°C at night. In order to maintain the temperature required for the cultivation of tomatoes in autumn and winter, greenhouses, greenhouses and other heat preservation facilities should be used to raise seedlings. When the weather is getting cold, we must pay attention to the insulation measures, can be covered with a small shed, covering the grass rake on the shed. Seedlings should also undergo proper cryogenic exercise before transplanting.
2. Light: Tomatoes are hi-light vegetables, light intensity is enhanced to help improve its photosynthetic efficiency. However, the weather in the autumn and winter greenhouses is gradually becoming colder. In order to maintain the temperature inside the greenhouse, the greenhouse film often covers the greenhouse film and even covers other covering materials. Because of this, it has a certain influence on the development of strong seedlings, so it is appropriate to increase the lighting time when the weather is fine during the day. In order to enhance the light transmittance and enhance the light intensity, it is necessary to regularly clean the film and remove the impurities on the film.
3. Humidity: Tomatoes have developed root systems and have certain drought resistance. Pay attention to control the humidity. During the seedling stage, the soil moisture content must not be too high. Otherwise, the rot may not be too low, which may affect the growth of the seedlings, so as to keep the surface soil dry and the lower soil wet.
4. Pest control: The main diseases at the seedling stage are damping-off and blight. In addition to strengthening management and nurturing strong seedlings, measures such as releasing air, reducing the frequency of watering, and creating appropriate seed bed temperatures can be used to prevent the occurrence of diseases. Individual strains were found to be removed immediately. The prevention and treatment of diseases is mainly prevention. After the seedlings are discharged, spraying with 50% carbendazim 400 times, 75% chlorothalonil 600 times, and 1000-1500 times, spraying control every 7 to 10 days. Spray 1 time, spray 2 or 3 times. Pesticides are best used interchangeably.
5. Miao Miao, transplanting, hardening seedlings: tomatoes generally can be seeded 7-9 days after sowing, if it is found that less seedlings, seedlings should be promptly filled. If nursery seedlings are used for nursery or seedlings with one or more seedlings, seedlings will be seeded in time when 3-4 true leaves grow in seedlings. Seedlings grow to 8-9 leaves, and colonization occurs when the first flowering ear begins to differentiate.
Dingmin Pharmaceutical supply Indacaterol API and Indacaterol Intermediates with high purity and best price. The main products CAS No are as follows:2338-18-3. Sample can be sent if you request. Most of the products are stock available. Also can be custom.
Welcome to do business with us. Please email to us directly.
Cas 312753-53-0,Indacaterol Intermediates,2-Aminoindan Hydrochloride
Shijiazhuang Dingmin pharmaceutical Sciences Co.,Ltd , https://www.dingminpharma.com