What are the contraindications for the mixed use of pesticides?

Foliar fertilizer is used more and more in the garden industry, and foliar fertilizer is directly applied to the foliar fertilizer for the purpose of foliar absorption, which is called foliar fertilizer. Foliar fertilizer is a type of fertilizer that is applied to the surface of crop leaves with nutrients and exerts its function through the absorption of leaves.

The leaves of the plant have two layers of epidermis, composed of epidermal cells, and the outer side of the epidermal cells has cuticle and wax, which can protect the mesophyll cells under the epidermal tissue to exercise photosynthesis, respiration and other functions, and is not affected by changes in external adverse conditions. Nutrients can be directly absorbed and utilized by plants, which is the first choice for extra-root fertilization.

Although foliar fertilization can supplement tree nutrients, it needs to be combined with soil fertilization to avoid unbalanced root-shoot ratio and poor root development, so as to make garden plants grow better.

In order to improve work efficiency and save labor costs, today's maintainers add foliar fertilizer while sterilizing or insecticidal to supplement the nutrients of plants. However, there are many contraindications when mixing foliar fertilizers with pesticides.

This is because foliar fertilizers can react chemically or physically with pesticides, affecting the effectiveness of pesticides or causing pesticide damage. If the liquid medicine has adverse performance, it is not suitable for mixed use. Even if the physical properties of the liquid medicine are good after mixing, a small-scale test should be carried out to see if it is easy to cause fertilizer damage, and then use it in a large area.

Generally, a single dose of liquid medicine is prepared with a sufficient amount of water, and then another single agent is diluted with this liquid medicine, but two single doses cannot be mixed first, and then diluted with water, so as to avoid adverse reactions, resulting in the destruction of active ingredients and the deterioration of physical properties. When foliar fertilizer is mixed, the order of mixing foliar fertilizer and pesticide is usually as follows: foliar fertilizer, wettable powder, suspension agent, water agent, and emulsifiable concentrate are added in turn, and each one is fully stirred and mixed, and then added.

Water has a great influence on the liquid medicine, and the pH and ion concentration of the water will affect the effect. It is better to use neutral water with low ion concentration, such as clean rainwater, river water, etc. Although there is no adverse reaction when the liquid medicine is first dispensed, it is easy to produce a slow reaction when it is left for a long time, so that the drug effect is lost or it is easy to cause drug damage.

1. Alkaline pesticides cannot be mixed with ammonium nitrogen fertilizers and superphosphate and other chemical fertilizers, otherwise ammonia will be volatilized and lost, and fertilizer efficiency will be reduced;

2. Arsenic-containing pesticides cannot be mixed with potassium salts and sodium salt fertilizers, otherwise soluble arsenic will be produced and pesticide damage will occur;

3. Alkaline fertilizers such as ammonia, lime, plant ash, etc. cannot be mixed with pesticides such as pesticides, otherwise the efficacy will be reduced;

4. Chemical fertilizers cannot be mixed with microbial pesticides. Because chemical fertilizers are volatile and corrosive, they are mixed with microbial pesticides such as bacillus borer and green worm fungus, which are easy to kill microorganisms and reduce control effectiveness!

In addition, there will be detailed instructions on the product packaging to which products can or cannot be mixed. Farmers must read the product description carefully before using the product, operate in strict accordance with the content of the instructions, and do not mix them at will in order to save trouble and avoid unnecessary losses.

We must pay attention to the ways and means, and also need to pay attention to the order of pesticide mixing, and also need to pay attention to the amount of adding, and can not use pesticides with the same active ingredients for mixed use.

The contraindication is that in the process of use, do not mix too many kinds of pesticides, do not use some fake and shoddy pesticides, do a good job of protecting yourself when using pesticides, do not let pesticides produce chemical reactions, do not use pesticides at will, do not use pesticides in violation of regulations.

First of all, don't blindly mix and use, there are many pesticides that can not be used together, but also should pay attention to the chemical composition of these pesticides, when mixing and using, you must pay attention to the amount, and you must ensure that the soil is moist.

Pay attention to the skills of matching, and at the same time pay attention to the harm of mixed pesticides, but also pay attention to the efficacy, but also pay attention to the dosage of the drug, pay attention to the reaction of the mixed agent, these are all things that need to be noted.

Farm fertilizer cannot be mixed with alkaline fertilizers such as plant ash, lime nitrogen, lime, calcium, magnesium and phosphorus fertilizer. Because the main component of human and animal manure is nitrogen, if mixed with strong alkaline fertilizers, it will be neutralized and ineffective. Superphosphate cannot be mixed with alkaline fertilizers such as plant ash and lime nitrogen, otherwise it will reduce the availability of phosphorus.

Insoluble phosphate fertilizers such as phosphate rock powder and bone meal should not be mixed with alkaline fertilizers such as grass ash and lime nitrogen, otherwise the insoluble phosphate fertilizers will be more difficult to dissolve, and crops cannot absorb and utilize. Alkaline fertilizers such as calcium, magnesium and phosphate fertilizers cannot be mixed with ammonium nitrogen fertilizers. Because if alkaline fertilizer is mixed with ammonium nitrogen fertilizer such as ammonium bicarbonate, ammonium sulfate, ammonium nitrate, ammonium chloride, etc., it will increase the volatility of ammonia, thereby reducing fertilizer efficiency.

Uncooked farmyard manure should not be mixed with ammonium nitrate. Because the unrotted farmhouse fertilizer must be decomposed and rotted before it can be absorbed and utilized by the crop. If mixed with ammonium nitrate, the nitrogen of the unrotted farmhouse fertilizer will be lost in the process of decomposition and decay, so it cannot be applied together, otherwise the nitrogen of both will be damaged and the fertilizer efficiency will be reduced.

Chemical fertilizers should not be mixed with bacterial fertilizers.

This range is too broad to outline in one sentence, but when you buy pesticides, you can consult with the ** person,,

This will be a little more accurate.

There are instructions for usage! There are hints.

Alkaline pesticides should not be mixed with alkaline pesticides. Most common pesticides are low-acid. Only a few pesticides are alkaline.

Alkaline pesticides include a mixture of inorganic copper, copper sulfate, and stone sulfur. These pesticides cannot be mixed with other pesticides because alkaline and acidic drugs react. A neutralization reaction can occur, making the pesticide ineffective or even ineffective.

At the same time, it is not used with weakly alkaline pesticides and also undergoes chemical reactions. Please read the instructions carefully when using pesticides. What cannot be mixed should be used separately and <>

Alkaline pesticides are acidic when the pH is below 7 and alkaline when the pH is above 7. In pesticide mixtures, chemical changes often occur that lead to reduced effectiveness or failure. Therefore, attention should be paid to the reasonable ratio of acid-base agents.

Generally, pesticides are acidic pesticides. When alkaline pesticides are mixed with other pesticides, alkaline neutralization and acid neutralization reduce the effectiveness of other pesticides, so that no other pesticide effects are produced. It is important to note that acidic pesticides cannot be mixed with alkaline pesticides.

In general, most pesticides are:

Weakly acidic, only some pesticides are alkaline. Alkaline pesticides include mixtures of inorganic copper hydroxide (which can be killed), copper sulfate, sulfurite, etc. In general, these pesticides cannot be mixed with other pesticides.

I don't know if the insecticide is alkaline or acidic, I forgot the name of my peanut bug.