Nicosulfuron soluble granule and preparation method thereof

Abstract

The invention relates to a nicosulfuron soluble granule and a preparation method of the nicosulfuron soluble granule. The nicosulfuron soluble granule is prepared from the following components in percentage by weight: 1%-70% of nicosulfuron, 0.5%-30% of alkali compound, and the balance of agricultural preparation auxiliary elements. The preparation method for the nicosulfuron soluble granule comprises the steps of preparing the raw materials; uniformly mixing ethanol with penetrating agent for later use; crushing and mixing the raw materials; squeezing, pelleting, drying and sieving the raw materials. Due to the nicosulfuron soluble granule, the difficulty that a soluble granule is difficult to prepare as the nicosulfuron is difficult to solve in water is overcome. Compared with a dispersible oil suspension, the content of active ingredients is increased; the dosage in a unit area is reduced; a large quantity of packaging materials, transportation cost and storage space can be saved, no organic solvent is used; and the production cost is greatly lowered. Moreover, the prepared soluble granule has good water solubility, and is beneficial to bringing pesticide effects into play.

Description

Technical field

[0001] The invention belongs to the technical field of agricultural herbicides, and specifically relates to a nicosulfuron soluble granule and a preparation method thereof. Background technique

[0002] Nicosulfuron (nicosulfuron), also known as Yunongle; its chemical name is 2-(4,6-dimethoxypyrimidin-2-ylcarbamoylaminosulfonyl)-N,N-dimethyl Nicotinamide. Nicotinsulfuron is a systemic herbicide, which can be absorbed by weed stems, leaves and roots, and then transmitted in the plant body, causing the growth of sensitive plants to stagnate, stems and leaves chlorosis, and gradually wither. Generally, they die within 20-25 days. However, it takes a longer time to treat certain perennial weeds in low temperatures. The effect of applying pesticide before the 4 leaf stage after emergence is good, but the effect of applying pesticide decreases when the seedling is large. The drug has pre-emergence herbicidal activity, but its activity is lower than that after emergen...

Examples

Embodiment 1

[0040] Composition and weight: 95% pure nicosulfuron original drug 31.6kg, basic compound sodium carbonate 5kg, wetting and dispersing agent calcium lignosulfonate and sodium lauryl sulfate, 5kg and 1.5kg respectively, Penetrant fatty alcohol polyoxyethylene ether 10kg, filler sodium sulfate 46.9kg.

[0041] Anhydrous ethanol: 5kg.

Embodiment 2

[0043] Composition and weight: 42.1kg of nicosulfuron original drug with a purity of 95%, basic compounds sodium carbonate and sodium bicarbonate, 5kg and 2kg respectively, wetting and dispersing agent methyl naphthalene sulfonic acid formaldehyde condensate sulfate and Sodium dodecylbenzene sulfonate, 8kg and 2kg respectively, penetrant sulfonated dioctyl succinate sodium salt 8kg, filler urea 34.9kg.

[0044] Anhydrous ethanol: 6kg.

Embodiment 3

[0046] Composition and weight: 95% pure nicosulfuron original drug 52.7kg, basic compounds sodium bicarbonate and sodium hydroxide, 8kg and 2kg respectively, wetting and dispersing agent sodium methylene naphthalene sulfonate dibutyl Nasylsulfonic acid-formaldehyde condensate and pull open powder are respectively 6kg and 1.5kg, penetrant laurin 3kg, filler sodium chloride 26.8kg.

[0047] Anhydrous ethanol: 10kg.

Technical field

[0001] The invention belongs to the technical field of agricultural herbicides, and specifically relates to a nicosulfuron soluble granule and a preparation method thereof. Background technique

[0002] Nicosulfuron (nicosulfuron), also known as Yunongle; its chemical name is 2-(4,6-dimethoxypyrimidin-2-ylcarbamoylaminosulfonyl)-N,N-dimethyl Nicotinamide. Nicotinsulfuron is a systemic herbicide, which can be absorbed by weed stems, leaves and roots, and then transmitted in the plant body, causing the growth of sensitive plants to stagnate, stems and leaves chlorosis, and gradually wither. Generally, they die within 20-25 days. However, it takes a longer time to treat certain perennial weeds in low temperatures. The effect of applying pesticide before the 4 leaf stage after emergence is good, but the effect of applying pesticide decreases when the seedling is large. The drug has pre-emergence herbicidal activity, but its activity is lower than that after emergen...

Examples

Embodiment 1

[0040] Composition and weight: 95% pure nicosulfuron original drug 31.6kg, basic compound sodium carbonate 5kg, wetting and dispersing agent calcium lignosulfonate and sodium lauryl sulfate, 5kg and 1.5kg respectively, Penetrant fatty alcohol polyoxyethylene ether 10kg, filler sodium sulfate 46.9kg.

[0041] Anhydrous ethanol: 5kg.

Embodiment 2

[0043] Composition and weight: 42.1kg of nicosulfuron original drug with a purity of 95%, basic compounds sodium carbonate and sodium bicarbonate, 5kg and 2kg respectively, wetting and dispersing agent methyl naphthalene sulfonic acid formaldehyde condensate sulfate and Sodium dodecylbenzene sulfonate, 8kg and 2kg respectively, penetrant sulfonated dioctyl succinate sodium salt 8kg, filler urea 34.9kg.

[0044] Anhydrous ethanol: 6kg.

Embodiment 3

[0046] Composition and weight: 95% pure nicosulfuron original drug 52.7kg, basic compounds sodium bicarbonate and sodium hydroxide, 8kg and 2kg respectively, wetting and dispersing agent sodium methylene naphthalene sulfonate dibutyl Nasylsulfonic acid-formaldehyde condensate and pull open powder are respectively 6kg and 1.5kg, penetrant laurin 3kg, filler sodium chloride 26.8kg.

[0047] Anhydrous ethanol: 10kg.

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