In winter, the greenhouse has strong airtightness. In order to keep heat and heat, the ventilation coefficient is small and the time is short, which can easily lead to the shortage of carbon dioxide, thus affecting plant photosynthesis. Tests show that before the exposing of the grass to the ventilation of the grass, the use of carbon dioxide gas fertilizer technology can generally increase production by 20% to 30%. After the exposing, the concentration of carbon dioxide in the greenhouse dropped sharply as the photosynthesis of vegetables progressed. At 8 to 9 in the morning, there is only 150 to 200 PPM. If the ventilation is not timely, it will be even lower. Even with ventilation, the carbon dioxide concentration can only be increased to 300 PPM, and the vegetable crops are still in a state of carbon dioxide starvation. If vegetables stay in this state for a long time, their normal growth and development will be seriously affected. The effect of carbon dioxide in vegetables, watermelons, strawberries, and fruit trees at different growth stages is not exactly the same. For example, when soybeans were applied with carbon dioxide during flowering and podling, the effect of increasing production was more obvious than at the stage of vegetative growth. Tomatoes, cucumbers and other fruit and vegetable vegetables from planting to flowering, plant growth is slow, carbon dioxide demand is small, generally do not apply carbon dioxide, to prevent plant growth. The greenhouse vegetable began to apply carbon dioxide 7 to 10 days after the planting (slow seedling stage), and the greenhouse vegetables began to apply carbon dioxide 15 to 20 days after the colonization (seedling stage) and continued for 30 to 35 days. Fruits and vegetables should not be used to apply carbon dioxide before flowering and fruit setting, so as to avoid excessive growth caused by excessive nutrient growth and fruit drop. Applying carbon dioxide during flowering and fruit setting period has a significant effect on reducing fruit drop, increasing fruit setting rate and promoting fruit growth. Fruit trees have more obvious effects on the flower bud differentiation and fruit enlargement period. The application time of gas fertilizer is determined according to the light intensity after sunrise. Normally from November to February of next year, it is cast after 1.5 hours of sunrise; from March to mid-April, it is cast after 1 hour of sunrise; from late April to early June, it is cast after 0.5 hour of sunrise. After being cast, the greenhouse or greenhouse is closed for 1.5 to 2 hours and then released, usually once a day, and stopped on rainy days. Hepatitis B Surface Antigen/AntibodyTest INTENDED USE
antigen in serum/plasma.
PRINCIPLE
If the test line does not appear, it is a negative result.
MAIN COMPONENTS
Sample pad, colloidal gold marked pad, nitrocellulose membrane, absorbent paper and PVC board.
INTERPRETATION OF RESULTS
NEGATIVE: A red line appears in the control region(C). No line
INVALID: No red lines appear or control line fails to appear. Hepatitis B Surface Antigen Test,Hepatitis B Test Kit,Medical Diagnostic Test Hepatitis B,Diagnostic Test Hbsag Changchun ZYF science and technology CO.,LTD , https://www.zyf-medical.com
Used for the qualitative detection of Hepatitis B surface
to combine with anti-mouse antibody and form a control line.
POSITIVE: Two distinct red lines appear. A red line in the
control region (C), and another red line in the test region (T). A pink to red line (T), even if it is very thin, indicates a positive
result.
appears in the test region (T).
Insufficient specimen volume or incorrect procedural
techniques are the most likely reasons. Review the procedure and repeat the test with a new test
device.
If the problem persists, discontinue using the kit and contact
your local distributor.
