Sulfur-coated compound fertilizer for garlic and preparation method thereof

A technology of sulfur coating and compound fertilizer, which is applied in the field of garlic sulfur coating compound fertilizer and its preparation, can solve problems such as high labor cost, impact on garlic yield and quality, and soil health threats

Active Publication Date: 2021-11-02
安徽司尔特化肥科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The emergence of these problems not only affects the yield and quality of garlic, but also poses a threat to soil health
The growth period

Method used

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  • Sulfur-coated compound fertilizer for garlic and preparation method thereof
  • Sulfur-coated compound fertilizer for garlic and preparation method thereof
  • Sulfur-coated compound fertilizer for garlic and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Slow-release insecticides are made by:

[0028] Step S11, add 0.8g of chlorantraniliprole and 25mL of DMF into the reaction kettle, add 0.1g of potassium permanganate and 3mL of hydrochloric acid solution with a mass fraction of 17%, then raise the temperature to 65°C, stir the reaction for 4h, and cool to room temperature , to obtain intermediate 1;

[0029] Step S12, add 1mmol of 4-aminobenzaldehyde, 1.0mmol of 2-(bromomethyl)acrylic acid, 5mL of THF and 5mL of deionized water into the round bottom flask, stir for 3min, add 1.1mmol of indium powder, and stir magnetically , TLC tracking, after the raw material point of aldehyde disappears, add 2 mL of hydrochloric acid solution with a concentration of 6 mol / L and stir for 3 h, extract with ethyl acetate, dry with anhydrous sodium sulfate, filter, and rotary evaporate under reduced pressure to obtain intermediate 2;

[0030] Step S13, take 50mmol of intermediate 1, 3.2mL of triethylamine and 38mL of tetrahydrofuran in ...

Embodiment 2

[0034] Slow-release insecticides are made by:

[0035] Step S11, add 1.0g of chlorantraniliprole and 26mL of DMF into the reaction kettle, add 0.1g of potassium permanganate and 4mL of hydrochloric acid solution with a mass fraction of 17%, then heat up to 67°C, stir for 4.5h, and cool to At room temperature, intermediate 1 was obtained;

[0036] Step S12, add 1mmol of 4-aminobenzaldehyde, 1.1mmol of 2-(bromomethyl)acrylic acid, 5mL of THF and 7mL of deionized water into a round bottom flask, stir for 3min, add 1.1mmol of indium powder, and stir magnetically , TLC tracking, after the raw material point of aldehyde disappears, add 3 mL of hydrochloric acid solution with a concentration of 6 mol / L and stir for 4 hours, extract with ethyl acetate, dry with anhydrous sodium sulfate, filter, and rotary evaporate under reduced pressure to obtain intermediate 2;

[0037] Step S13, take 50mmol of intermediate 1, 3.5mL of triethylamine and 40mL of tetrahydrofuran in a three-necked fla...

Embodiment 3

[0041] Slow-release insecticides are made by:

[0042] Step S11, add 1.2g of chlorantraniliprole and 28mL of DMF into the reaction kettle, add 0.1g of potassium permanganate and 5mL of hydrochloric acid solution with a mass fraction of 17%, then heat up to 68°C, stir for 5h, and cool to room temperature , to obtain intermediate 1;

[0043] Step S12, add 1mmol of 4-aminobenzaldehyde, 1.2mmol of 2-(bromomethyl)acrylic acid, 5mL of THF and 8mL of deionized water into the round bottom flask, stir for 3min, add 1.1mmol of indium powder, and magnetically stir , TLC tracking, after the raw material point of aldehyde disappears, add 4 mL of hydrochloric acid solution with a concentration of 6 mol / L and stir for 6 hours, extract with ethyl acetate, dry with anhydrous sodium sulfate, filter, and rotary evaporate under reduced pressure to obtain intermediate 2;

[0044] Step S13, take 50mmol of intermediate 1, 3.8mL of triethylamine and 41mL of tetrahydrofuran in a three-necked flask wi...

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Abstract

The invention relates to a sulfur-coated compound fertilizer for garlic, and belongs to the technical field of fertilizer preparation, wherein the sulfur-coated compound fertilizer for garlic comprises the following raw materials: a nitro-compound fertilizer, a slow-release insecticide, phosphoric acid, urea, a potassium magnesium phosphate fertilizer, zinc sulfate, manganese sulfate, ammonium molybdate and ferrous sulfate. The invention also discloses a preparation method of the compound fertilizer, wherein the preparation method comprises the steps: heating phosphoric acid and urea at the temperature of 60-70 DEG C to form urea phosphate molten slurry, adding the potassium magnesium phosphate fertilizer, zinc sulfate, manganese sulfate, ammonium molybdate and ferrous sulfate, stirring and mixing, spraying into a granulator for granulation, spraying liquid sulfur on the surfaces of particles through a high-pressure spray head after granulation, and drying to obtain a component A; and stirring and mixing the component A, the nitro-compound fertilizer and the slow-release insecticide to obtain the sulfur-coated compound fertilizer for the garlic. The proportion of nitrogen, phosphorus and potassium nutrients is reasonable, trace elements are added, and it is guaranteed that the garlic can meet the requirements and does not cause fertilizer damage; and the sulfur coating plays a role in nutrient slow release, and compared with a common fertilizer, the fertilizer has the advantages that the fertilizer utilization rate is improved, and the purposes of reducing weight and improving efficiency are achieved.

Description

technical field [0001] The invention belongs to the technical field of fertilizer preparation, and in particular relates to a garlic sulfur-coated compound fertilizer and a preparation method thereof. Background technique [0002] Garlic has been used as a natural fungicide since ancient times and is known as "natural antibiotic". Garlic can be eaten raw, with high nutritional value and obvious physiological effects. It can also be further processed into a series of products, such as health food, cosmetics, feed additives, etc. [0003] At present, garlic cultivation is facing many problems, such as soil compaction, nutrient deficiency, fertilizer damage, heavy cropping, serious pests and diseases, etc. Among them, the problem of pests and diseases is more fatal. Leaf blight is prone to occur in garlic planting. Leaf blight mainly harms garlic leaves. The disease begins at the tip of the leaf or other parts of the leaf. It appears as a small white dot at first, and then ex...

Claims

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Application Information

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IPC IPC(8): C05G3/60C05G3/40C05G5/12C05G5/30
CPCC05B17/00C05G3/40C05G3/60C05G5/12C05G5/30C05C3/00C05C5/00C05C9/00C05D9/02Y02A50/30
Inventor 董慧
Owner 安徽司尔特化肥科技有限公司
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