Can chemical fertilizers and pesticides be mixed? I can't understand this problem all the time, but I finally got it this time!

Many farmers often ask that in agricultural production, they sometimes want to mix pesticides and fertilizers together, but they do not know whether the mixing will affect the effect. Can pesticides and chemical fertilizers be mixed together? It depends on the characteristics of pesticides and fertilizers, some can be mixed, the effect will be enhanced after mixed use, and some can not be mixed, mixed use will reduce the effect of application, and even cause product deterioration. Next, let's talk about it in detail.

What should be paid attention to when mixing pesticides and chemical fertilizers?

In general, solid pesticides and chemical fertilizers can be mixed directly, while solid-liquid mixing or liquid-liquid mixing should first consider the possible changes after mixing. After mixing, the time of application and the depth of fertilization should take into account the full play of fertilizer effect and efficacy. The mixture of medicine and fertilizer should be shallow when used as base fertilizer. After the mixed use of fertilizers and pesticides, the requirements of fertilization and pesticides are often not completely unified, so the pesticides based on chemical fertilizers are mainly all kinds of herbicides, with fewer pesticides and fewer fungicides.

1. Alkaline pesticides such as Bordeaux solution, stone-sulfur mixture and turpentine mixture can not be mixed with ammonium carbonate, ammonium sulfate, ammonium nitrate, ammonium chloride and other ammonium nitrogen fertilizer or calcium superphosphate, so as to avoid ammonia volatilization or precipitation, thus reducing fertilizer efficiency.

2. Alkaline fertilizers such as ammonia, lime and plant ash should not be mixed with aldicarb, methyl topiramine, Jingangmycin, carbendazim, cicada powder, pyrethroid insecticides and other pesticides, otherwise the efficacy will be reduced. Because most organophosphorus pesticides are easy to decompose and fail under alkaline conditions.

3. Chemical fertilizers can not be mixed with microbial pesticides, because chemical fertilizers are volatile and corrosive. If they are mixed with microbial pesticides such as fenitrobacter and cyanobacteria, it is easy to kill microorganisms and reduce the control effect.

4. Pesticides containing arsenic can not be mixed with potassium salt, sodium salt and so on. For example, if calcium arsenate and aluminum arsenate are mixed with potassium salt and sodium salt, soluble arsenic will be produced and drug damage will occur. In all the mixed use of fertilizers and herbicides, the mixture of chemical fertilizers and herbicides was the most, followed by pesticides, and fungicides were less.

5. the effect is remarkable when plant growth regulators are mixed with fertilizers, especially compound nitrophenol sodium, Penshibao, etc. Such as triacontanol mixed with urea, potassium dihydrogen phosphate, ammonium molybdate, borax and so on.

Matters needing attention when plant growth regulators are mixed with pesticides and chemical fertilizers

Whether plant growth regulators can be mixed with other pesticides and chemical fertilizers, the simplest way is to put agricultural plant growth regulators and pesticides or chemical fertilizers in the same container to mix and make a solution. if there is no oil slick, flocculation, precipitation or discoloration, fever, bubbles and other phenomena occur, it shows that it can be mixed.

In addition, there will be detailed instructions on the product packaging, which products can or cannot be mixed with. When using the product, farmers must first read the product description carefully, operate strictly in accordance with the instructions, and do not mix it at will in order to save trouble and avoid unnecessary losses.