First, pay attention to watering not too much
1. Do not pour too much water after the peppers are emerged, which is not conducive to the growth of peppers. When the humidity is relatively large, the humidity can be adjusted by spraying the ash and fine soil.
2, for pepper watering, depending on the soil, the bed soil is not white and not watered.
3, pepper watering should be carried out at noon on a sunny day, after watering, do a good job of ventilation and moisture.
4, control the amount of watering when watering, it is best to pour water, wait for a day after drying in large water, large water to be aired for 2 days.
5, the humidity of the pepper planting assembly caused the seedlings to collapse and wither, so cover the film after watering and drying.
6. Seedlings should be watered in time after the 4-leaf stage to promote root development, which is conducive to accelerating seedlings after planting. The watering time should be selected at 10-13 am.
7. Keep the bed soil moist during the whole seedling stage of pepper, and keep the seedlings growing well.
8. Stop watering 7-10 days before seeding, refine the seedlings, and pour the water once a day before planting.
Second, the temperature
The temperature control of capsicum seedling transplanting is high and low, the daytime temperature is 23-25 ​​degrees, and the nighttime temperature is 13-15 degrees; in the cold season, it is necessary to pay attention to heat preservation and antifreeze; strengthen the ventilation work in sunny days or rainy and snowy days; small in the greenhouse The arch shed film should be uncovered to increase light transmission and enhance seedling resistance; as the seedling grows, the adaptability to low temperature gradually increases, so the temperature management should be slowly decreasing.
Third, transplanting
Before transplanting pepper, pay attention to the choice of herbicide. It is not suitable for the long-term residual agent to prevent the pepper seedlings from slowing down the roots; when applying the base fertilizer during transplanting, it must be some distance away from the pepper to prevent the pepper from burning and killing. .
Fourth, pest control
Pay attention to whether there are mites and locusts near the seedbed. Once it is found, it can spray insecticides such as imidacloprid and other contact-type insecticides on the seedbed to prevent the spread of viral diseases.
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Food additive is a kind of non nutritive substance which is added in small amount to improve the appearance, flavor, structure or storage property of food. It refers to any substance artificially added to food for technical purposes in the process of food production, processing, preparation, treatment, packaging, transportation or storage. In order to improve the quality of food, such as color, aroma and taste, and to meet the needs of anti-corrosion and processing technology, synthetic or natural substances are added into food . At present, there are 23 categories and more than 2000 varieties of food additives in China, including Acidity Regulators, anti caking agents, defoamers, antioxidants, bleaching agents, bulking agents, colorants, color protectants, enzyme preparations, flavor enhancers, nutritional enhancers, preservatives, sweeteners, thickeners, spices, etc.
Product Name: Beta-Carotene
Appearance: Orange Powder
CAS: 7235-40-7
Molecular formula:C40H56
Molecular weight :536.8726
Melting point: 178-179℃
Flashing point: 103℃
EINECS: 230-636-6
Specification: 1%;10%;20%;30%,50%,90%;99%
Testing Method: HPLC
Beta carotene is the molecule that gives carrots their orange colour. It is part of a family of chemicals called the carotenoids, which are found in many fruit and vegetables, as well as some animal products such as egg yolks. Biologically, beta carotene is most important as the precursor of vitamin A. It also has anti-oxidant properties and may help in preventing cancer and other diseases.
Beta Carotene is also known as a provitamin because it can be converted in our body into vitamin A after oxidative cleavage by beta carotene 15, 150-dioxygenase. In plants, beta carotene, acts as an anti-oxidant and neutralizes singlet oxygen radicals formed during photosynthesis.
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