We have been producing Biological Products for about 50 years. Tetanus Antitoxin is the main product of our biological products, and its market share in China is over 70%, more over, it's been exported to over 20 countries. It won the title of Provincial Excellent New Products in 1998, the New Products Gold Prize by the Southeast Asia Chamber of Commerce in 2001, and the Excellent New Products Gold Cup by the Seventh Asean Congress of Traditional Chinese Medicine in 2003.
Biological Products For Human,Biological Products,Medical Biological Products,Biological Products Antisera Jiangxi Institute of Biological Products Inc. , http://www.jxinstitute.com
In addition to frost damage, the following diseases should also be prevented during the seedling stage:
Stumble down. After the seedlings are unearthed, the stem base is colonized by bacteria and collapsed to the ground. When the humidity of the seedbed is large, white flocculent mycelium is often densely produced on the surface of the diseased seedling or its vicinity, which is different from blight.
Blight. The stems of the unearthed seedling stems browned and contracted after they were infested, and the stems and leaves wilted withered; the large seedlings wilted during the day, recovered at night, and did not show collapse after death; the diseased part had a concentric rouleau and pale brown spider silk mold; Disease differentiation and the important features of damping-off.
Roots. The main reason is that the ground temperature is lower than 120C, and the duration is long. When the water is over-watered or in the case of continuous cloudy weather, it will take a long time for a long time. The roots showed no new roots, root rust was rotted, easy to pull up, and the leaves of the shoots were coked.
Control methods:
1, water management: seedling stage should try to control watering, especially in the evening watering easily lead to high humidity, watering must be selected to spray in sunny days, flooding should not be flooded.
2, humidity control: seedbed to be promptly ventilated, dehumidification, even in cloudy weather should also be timely ventilation and humidity.
3, chemical control: damping-off disease can be used 50% carbendazim powder 500 times, 58% metalaxyl MnZn powder 500 times spray; control of bacterial blight available 70% thiophanate powder 1000 times spray; When disease is mixed, it can be used to irrigate roots with 50% of Formamide WP 800 times.
Winter vegetable seedlings need to prevent cold
With the decrease of the temperature, especially the sudden cold air, the various crops have been tested at low temperatures. While some vegetables are in the season of raising seedlings, the seedlings have weaker resistance to low temperature, which may cause freezing injury. In severe cases, they may cause dead seedlings. Therefore, we must promptly do a good job of insulation measures for vegetable seedbeds: when the temperature drops, cover the greenhouse membrane; when the minimum temperature at night to 00C, it is best to cover the small arch film. When the temperature is lower, the shed can be covered with an inner membrane or surrounded by straw.