Overwintering loofah has been planted, and part of it is already in the fruiting stage. As the winter temperature drops, the key to gaining stable and high yield of overwintering loofah is to grow roots. Loofah likes strong light, heat resistance, and cold resistance. The winter temperature is low, and the long gourd is slow. The "high temperature cultivation" of the gourd is required to ensure that the temperature of the greenhouse in the daytime is 27 ℃ ~ 30 ℃ in winter, and the maximum temperature is not more than 32 ℃ Controlled at 14 ℃ ~ 18 ℃ to ensure the temperature difference between day and night is about 10 ℃. The first is to increase greenhouse temperature and ground temperature to promote root growth. That is, when the two leaves are concentrated after the wintering loofah is planted, the mulch is covered to increase the ground temperature. A reflective film is set on the back wall of the shed, and photosynthetic nutrition film fertilizer is sprayed, which can help growing plants absorb light energy, improve fertilizer efficiency and thrive. The second is to promote rooting with rooting agents. When the loofah grows to three to four leaves, it can be irrigated with roots and rooting agents to promote the development of plant roots and strong immunohistochemical antibodies. It can be used for plant nutrition (water, fertilizer, medicine) navigation, and improve plant root development. positive energy. Disclaimer: Some articles on this website are transferred from the Internet. If you have third party legal rights, please inform this website to deal with them. phone
Food additives are chemical substances that are added during food production and processing to improve the quality and characteristics of food. They can improve the taste, color, texture, freshness, and nutritional value of food products and provide consumers with a better food experience.
Food coloring is mainly used to change the color of food to make it more attractive. Common food colorings include natural colorings and synthetic colorings. Natural pigments generally come from plants, animals or microorganisms, such as carotene and chlorophyll. Synthetic pigments, on the other hand, are obtained through chemical synthesis, such as bright blue pigment and lemon yellow pigment. Food coloring is widely used in food products such as pastries, beverages, jams, etc. to make them more colorful and diverse.
Food preservatives can prolong the freshness period of food and reduce the growth of bacteria and molds, thus maintaining the freshness and quality of food. Common food preservatives include sulfates and nitrites. They are widely used in meat products, fruit and vegetable products, canned food, etc. to ensure that the food is not easy to rot and deteriorate.
Food thickeners can increase the consistency and texture of food, making it taste better. Common food thickeners include gelatin and pectin. They are widely used in jellies, sauces, dairy products and other foods to enhance the taste and quality of food.
Food sweeteners can replace traditional sugars to provide sweetness to food while reducing calorie intake. Common food sweeteners include sucralose and aspartame. They are widely used in candies, beverages, chewing gums and other foods to satisfy people's need for sweetness.
Citric acid can increase the sour flavor of food and enhance the taste of food. It is widely used in beverages, jams, condiments and other foods to make them more refreshing and delicious.
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Detailed introduction of food additives
First, let's introduce a common food additive, food coloring.
Secondly, food preservatives are also one of the common food additives.
Besides colors and preservatives, food thickeners are also one of the commonly used food additives.
In addition, food sweeteners are also one of the common food additives.
Finally, let's introduce a common food acidifier - citric acid.