How to prepare sweet and sour liquid what is the proportion of sweet and sour liquid formula? What is the function of sweet and sour liquid?

Sugar and vinegar solution: foliar spraying sugar and vinegar can prevent diseases and insect pests and freeze injury. After spraying vinegar solution on the leaves of crops, the acidity of the leaves can be increased, and then the diseases and insect pests which are not suitable for acid conditions can be inhibited or killed, and the control effect can be achieved. According to observation and research, bacterial diseases, virus diseases and aphids in crops are suitable to reproduce and grow under neutral or alkaline conditions. Let's take a look at it.

A, the effect of sweet and sour liquid

Sweet and sour liquid is also a kind of non-pesticide prevention and treatment method, which mainly uses comprehensive microorganisms (including dozens of active bacteria with different functions, such as yeast, lactic acid bacteria, actinomycetes, photosynthetic bacteria and nitrogen-fixing bacteria) to add sugar (carbon source), protein (nitrogen source) and brewed vinegar and rice wine as raw materials, which can be used as natural pesticides to cause indigestion and death of insects, or smell them and leave. To achieve the repellent effect, if it is diluted into 500 times solution sprayed on the red spider, the quasi-inchworm can be effective for 1 to 2 days, and it will be effective when applied to the Plutella xylostella larvae for 4 days. Because it does not contain pesticides, it is harmless to human beings and animals, and insects will not produce drug resistance to it, so it can be used continuously for a long time. In order to improve its effect, another nutrient or natural plant extract such as garlic, pepper, houttuynia, moxa, neem, mint and citronella can be added, and because it contains nutrients for plant growth and various organic acids and monosaccharides, it can regulate crop growth, enhance the ability of photosynthesis, improve fruit sweetness and quality, prevent continuous cropping obstacles and inhibit diseases and insect pests. In addition, it can be used in the treatment of odor removal, water purification and composting fermentation of poultry and livestock products.

B. the method of preparing sweet and sour liquid

I. Materials

Manufacturing procedure

1. Pour the black sugar (or molasses) into 40 C hot water to dissolve it, then add vinegar, wine and soybean soup, and finally add comprehensive microorganisms (note that the liquid temperature should not exceed 30 degrees C at this time. In order to avoid microbes being scalded to death), stir and mix evenly until foaming, then pour it into the container (not available in glass bottles), fasten the lid or barrel mouth, cover it with gauze, tie it with rope. Store in a cool place (do not store in cold storage below 5 degrees C for a long time).

two。 After that, stir it once a day in the morning and evening until the liquid surface blisters to promote fermentation.

3. Due to the temperature, gas will be produced after a period of time (about 15-30 days after bubbling), and the container will expand. At this time, it is appropriate to loosen the lid slightly, let the gas drain, and then fasten it.

4. Whether the finished product of sweet and sour liquid is good or not is judged by whether it has an acrid sweet taste.

5. The service life of sweet and sour liquid can be preserved for about 6 months at room temperature (20 ~ 30 degrees C).

Method of use

1. As the effective microflora is afraid of strong light, it is best to use it on cloudy days or before 9: 00 a.m. and after 3: 00 p.m., or when it drizzle

two。 500-fold dilution was used for foliar spraying and 300-fold dilution was used for soil irrigation.

3. Sweet and sour liquid is mainly used to prevent the occurrence of diseases and insect pests, strengthen the leaf protective membrane stratum corneum, and prevent the invasion of pathogenic bacteria.

4. In order to promote crop growth, nutrients such as amino acid, fish essence, humic acid and seaweed essence can be added, potassium humate, natural phosphorus, calcium and magnesium can be added to improve sugar content, and garlic, pepper, houttuynia cordata and Suri can be added to control diseases and insect pests.