Mixed Technology of Fertilizer and Pesticide Hormone in Orchard

Fertilizers, pesticides, and hormones are the main production materials for fruit production. As social development, technological progress, and people’s demand for safe foods continue to increase, producers will use two or more chemical fertilizers, pesticides, and hormones in a mixed application. Increasing efficiency, saving costs, and increasing profits are new trends in the future. Mixed use of pesticides is based on the expansion of the scope of control, elimination of drug-resistant type, increased drug efficacy and mixed use. However, if there is synergy and antagonism between the mixed agents, if they are mixed blindly, they will fail and even cause harm.

First, the principle of mixing

1. Does not destroy physical properties. After mixing, it can ensure normal efficacy or efficiency, and maintain the original physical properties, so as to avoid emulsification, reduced suspension rate, stratification, flocculation, precipitation, crystal precipitation of active ingredients and so on. Powder cannot be mixed with wettable powders or soluble powders.

2. No adverse chemical reactions occur. No adverse chemical reactions such as acid-base neutralization, precipitation, hydrolysis, alkaline hydrolysis, acid hydrolysis, salting-out, or redox reactions occur between the mixtures.

3. No reduction in toxicity and residual activity occurred. The mixture will not have a toxic effect on fruit trees and products. After the pesticides are mixed, no toxicity is required to ensure the safety of humans and animals. The combination of moderately toxic pesticides with low- or low-residue pesticides can reduce toxicity or residues and reduce pesticide residues in fruits.

4. Use as consistently as possible. The components in the mixture are more consistent in drug efficacy time, application site, and object of use, and can fully exert their respective effects.

5. First try again to promote. Tests are conducted in a small area first, and only when no adverse effects are demonstrated.

Second, fertilizer and mixed

1. The super-calcium phosphate, phosphate rock powder, bone meal and livestock and manure urine can not be mixed with alkali fertilizers such as grass ash, lime nitrogen, and lime. Otherwise, the organic acids in the soil are neutralized, making insoluble phosphate fertilizers more difficult to dissolve and reducing the effectiveness of phosphorus. Fruit trees cannot absorb and use them.

2. Alkaline fertilizer such as calcium magnesium phosphate cannot be mixed with ammonium nitrogen fertilizer. Because if alkaline fertilizers are mixed with ammonium nitrogen fertilizers such as ammonium bicarbonate, ammonium sulfate, ammonium nitrate, ammonium chloride, etc., ammonia volatilization will be increased and fertilizer efficiency will be reduced.

3. Chemical fertilizers cannot be mixed with bacterial fertilizers. Because chemical fertilizers are highly absorbent, corrosive, and volatile, if they are mixed with rhizobia and other bacterial microbes, they will kill or inhibit viable bacteria and make bacterial fertilizers ineffective.

4. Unripe farmyard fertilizers cannot be mixed with ammonium nitrate. If it is mixed with ammonium nitrate, nitrogen will be lost during the decomposition and rot of the uncooked farmyard manure, otherwise both nitrogen will be damaged and the fertilizer effect will be reduced.

Third, drug and drug mixture

1. Acidity is an important factor affecting the effectiveness of each component. Under alkaline conditions, dithiocarbamate fungicides such as carbamates, pyrethroid vinegar insecticides, thiram, and thiophene rings are prone to hydrolysis or complex chemical changes, thereby destroying the original structure. Under acidic conditions, 2,4-D sodium salt, 2A 4 sodium chloride salt, etc. will decompose, thus reducing the efficacy.

2. Organic sulfur and organic phosphorus pesticides cannot be mixed with pesticides containing copper preparations. For example, dithiocarbamate fungicides, 2,4-D salts herbicides and copper preparations are used together and lose their activity due to complexation with copper ions.

3. Microbial source insecticides and systemic organophosphate insecticides cannot be mixed with fungicides.

4. The use of emulsifiable concentrates or wettable powders requires no delamination, oil slicks or sedimentation.

5. The mixture should be protected from phytotoxicity. The chemical composition of the active ingredient in the composition of the mixture may cause phytotoxicity. For example, lime sulfur mixed with Bordeaux mixture can produce harmful copper sulfide and increase the content of soluble copper ions. Butachlor and other compounds can not be combined with organic phosphorus and urethane. Mixed pesticides.

6. Insecticide mixture: A powder, B powder, Xin emulsion, anti-Chi spirit, double fruit and so on.

7. Insecticides and fungicides are mixed and mixed in the following forms: killing scorpion plus different rice sorghum, dimethomorph carbendazim, methamidophos different rice sorghum, etc., most of which are currently used.

8. There are few varieties of pesticides, fungicides and herbicides.

9. There are many types of fungicides mixed, mainly seed dressing double, metalaxyl manganese zinc, polysulfide rubber suspension, special fungicides.

10. There are fewer varieties of plant growth regulators. Such as the use of mixed BC and chlormequat, gibberellin mixed with naphthalene acetate and so on.

IV. Mixed use of fertilizers

Solid pesticides and chemical fertilizers can generally be mixed directly. When solid-liquid mixing or liquid-liquid mixing, changes that may occur after mixing should be considered first. After mixing, the application time and fertilization depth must take into account the full use of the fertilizer effect and efficacy. The drug and fertilizer mixture should be applied as base fertilizer when applied shallowly. After the fertilizers and pesticides are mixed, the requirements for pesticide application, pest control and pest control are often not completely unified. Therefore, the pesticides currently used as fertilizers are mainly herbicides with less insecticides and fungicides. less.

1. Alkaline pesticides such as Bordeaux mixture, lime sulfur, and rosin mixture cannot be mixed with ammonium nitrogen, ammonium sulfate, ammonium nitrate, ammonium chloride or other ammonium nitrogen or superphosphate so as to avoid ammonia volatilization or precipitation. Fertilizer effect.

2. Alkaline fertilizers such as ammonia, lime, and ash can not be associated with trichlorfon, dimethoate, aldicarb, methamidophos, thiophanate-methyl, jinggangmycin, carbendazim, loquat leaf, and pyrethrum Mix pesticides such as ester pesticides, otherwise it will reduce the efficacy. Most organophosphorus pesticides are prone to decomposition failure 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 acaricidal bacteria and adult worms, they can kill microorganisms and reduce control effectiveness.

4. Arsenic-containing pesticides cannot be mixed with potassium salts, sodium salts, etc. For example, if calcium arsenate, aluminum arsenate, etc. are mixed with potassium salt and sodium salt fertilizers, soluble arsenic will be produced and phytotoxicity will occur. Among all fertilizers used, fertilizers and herbicides are the most mixed, followed by pesticides and fungicides.

5. The effects of plant growth regulators and chemical fertilizers, especially high-yield fertilizers, spray-applied treasures, foliar treasures, and microelement fertilizers, are significant. Such as triacontanol and urea, potassium dihydrogen phosphate, ammonium molybdate, borax mixed application.

Fifth, hormones and drugs, fertilizer mixed

Before mixing, agricultural hormones and pesticides or chemical fertilizers are put into the same container to form a mixed solution. If there is no slick oil, flocculation, precipitation or discoloration, heat generation, bubbles, etc., the mixture is used.

Six, mixed water

Formulate, dilute chemical fertilizers, pesticides, and hormones to use clean, neutral soft water (refers to fresh water like rivers, rivers, lakes, etc., contains less calcium and magnesium ions, water hardness of about 7.5 degrees), will not make pesticides and water Chemical changes occur, and the pesticide ingredients are protected from damage, ensuring the efficacy and control of pesticides, and avoiding phytotoxicity. If hard water (refers to water such as well water, salt water, seawater, etc. containing more calcium, magnesium ions, water, hardness 18-20 degrees) diluted pesticides, calcium and magnesium ions in the water can reduce the suspension rate of wettable agents , Or synthesize calcium and magnesium precipitates with emulsifiable concentrates in the emulsifiable concentrate to destroy the emulsifying properties of the emulsifiable concentrates, which will reduce the control effect of pesticides, easily cause phytotoxicity to the crops, and also easily clog the sprinklers.

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