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Medical fertilizer containing 2-chloropyridine derivative and preparation method thereof

A derivative, the technology of chlorpyridine, applied in the field of agriculture, can solve the problems of low insecticidal efficiency of pesticides, resistance of pests, and low production efficiency, and achieve good application effects, reduce control costs, and improve utilization.

Inactive Publication Date: 2017-05-10
广西乐土生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The object of the present invention is to propose a kind of medicinal fertilizer that improves insecticidal efficiency, delays the generation speed of insect resistance, pesticide and fertilizer synchronous application of medicinal fertilizer containing 2-chloropyridine derivatives and its preparation method, to solve the problems of the above-mentioned prior art. Technical problems such as low insecticidal efficiency of pesticides, resistance of pests, high labor intensity and low production efficiency

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  • Medical fertilizer containing 2-chloropyridine derivative and preparation method thereof
  • Medical fertilizer containing 2-chloropyridine derivative and preparation method thereof

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preparation example Construction

[0035] One, the preparation of 2-chloropyridine derivatives of the present invention

[0036] The preparation method of 2-chloropyridine derivatives of the present invention is: dissolve imidacloprid 100kg, methyl carbamate hydrochloride 52.4kg, tri-n-butylamine 87.8kg and 40% formaldehyde aqueous solution 64.6kg in 1000L absolute ethanol, 75 Heating at reflux for 5 hours at ℃, TLC monitoring completion of the reaction at the imidacloprid raw material point (TLC condition is that the volume ratio of ethyl acetate to dichloromethane is 1:3.5), evaporate the solvent under reduced pressure, add 430L ethyl acetate at 50 ℃ and stir for crystallization for 1.5h, After cooling the feed liquid to 5°C and keeping it warm for half an hour, the solid product was obtained by suction filtration under reduced pressure, and the filter cake was dried under reduced pressure to obtain 2-chloropyridine derivatives with a yield of 93.5%.

[0037] 2. Application examples

[0038] 1. Preparation a...

Embodiment 1

[0040]A preparation method of medicinal fertilizer granules containing 2-chloropyridine derivatives, comprising the following steps:

[0041] S1: Weigh the raw materials by the following weight: 1 kg of insecticidal composition containing 2-chloropyridine derivatives and dimehypo (the weight ratio of 2-chloropyridine derivatives and dimehypo is 1: 30), 575 kg of fertilizer (nitrogen fertilizer Urea 150kg, ammonium chloride 200kg, phosphate fertilizer monoammonium phosphate 50kg, diammonium phosphate 50kg, potassium fertilizer potassium chloride 100kg, potassium sulfate 25kg), filler is kaolin 400kg, dispersant calcium lignosulfonate 10kg, binder starch 10kg;

[0042] S2: uniformly mix the insecticidal composition containing 2-chloropyridine derivatives and dimehypo, dispersant, binder and filler, add it to an ultrafine pulverizer, pulverize, and pass through a 325-mesh sieve to obtain an insecticide premixed powder;

[0043] S3: Mix the insecticide premixed powder and the fer...

Embodiment 2

[0049] A preparation method of medicinal fertilizer granules containing 2-chloropyridine derivatives, comprising the following steps:

[0050] S1: Weigh raw materials according to the following weight: 5 kg of compositions containing 2-chloropyridine derivatives and monosultap (the weight ratio of 2-chloropyridine derivatives and monosultap is 1:5), 800 kg of fertilizers (200 kg of nitrogen fertilizer urea , ammonium sulfate 300kg, phosphate fertilizer calcium magnesium phosphate fertilizer 50kg, monoammonium phosphate 100kg, potash fertilizer potassium chloride 150kg), filler is montmorillonite 150kg, dispersant fatty acid methyl ester 20kg, binder cyanoacrylate 30kg;

[0051] S2: Mix the composition containing 2-chloropyridine derivatives and monosultap, dispersant, binder and filler evenly, add it to an ultrafine pulverizer, pulverize it, and pass through a 325-mesh sieve to obtain the insecticide preparation. powder mix;

[0052] S3: Mix the insecticide premixed powder an...

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Abstract

The invention discloses a medical fertilizer containing a 2-chloropyridine derivative and a preparation method thereof. The medical fertilizer includes an insecticidal composition, a fertilizer and a medical fertilizer assistant, wherein the insecticidal composition is a binary mixture obtained by using the 2-chloropyridine derivative and a nereistoxin insecticide as effective components, and the weight ratio of the 2-chloropyridine derivative and the nereistoxin insecticide is (1:1)- (1:30). The invention also discloses the preparation method for making the medical fertilizer into granules, water soluble powders and liquid preparations, and the preparation method is simple in raw material and stable in quality. The medical fertilizer can improve insecticidal efficiency, reduce the times of conducting fertilization and spraying insecticides and improve the utilization rate of fertilizers and pesticides, has no drug resistance and achieves the effect of saving work, time and labor.

Description

technical field [0001] The invention belongs to the technical field of agriculture, and relates to a mixture of pesticides and fertilizers, in particular to medicinal fertilizers containing 2-chloropyridine derivatives and a preparation method thereof. Background technique [0002] Sugarcane is an annual or perennial perennial tropical and subtropical plant. After the sugarcane is harvested, the rhizomes are left in the ground to overwinter, while a large number of underground pests and eggs are hidden in the ground. The existing pesticides have made the pests resistant. Continue to spray not only Failure to kill pests can also cause various problems in the soil, which directly affects the sugarcane harvest in the second year. Sugarcane has a vast planting area in my country and is the main raw material for the sugar industry. Underground pests of sugarcane generally occur in multiples together, affecting the growth and reproduction of sugarcane. Borers, commonly known as c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/02A01N43/90A01N41/02A01N47/12A01P7/02A01P7/04C05G3/60
CPCA01N41/02A01N43/90A01N47/12C05B1/02C05B7/00C05G3/00C05G3/60A01N2300/00C05C3/00C05C9/00C05D1/02C05D9/00C05D3/00C05D5/00
Inventor 吕昆明廖华杨瑞青周伟东
Owner 广西乐土生物科技有限公司
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