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Alginic acid-containing urea-based compound fertilizer and preparation method thereof

A technology of alginic acid and compound fertilizer, applied in phosphate fertilizer, superphosphate, fertilization device, etc., can solve the problems of less than 30% utilization rate of phosphate fertilizer, low utilization rate of compound fertilizer, soil salinization, etc., and achieve high utilization rate, Improve the content of functional organic matter and the effect of lasting fertilizer effect

Inactive Publication Date: 2019-08-23
青岛明月蓝海生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] To sum up, common compound fertilizer products currently on the market have the following defects: continuous and excessive use of compound fertilizers leads to soil compaction, soil acidification, soil salinization and other hazards; the utilization rate of compound fertilizers is low, and the seasonal utilization rate of nitrogen and potassium fertilizers is 30%. -40%, the utilization rate of phosphate fertilizer is less than 30%, resulting in great waste

Method used

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  • Alginic acid-containing urea-based compound fertilizer and preparation method thereof
  • Alginic acid-containing urea-based compound fertilizer and preparation method thereof
  • Alginic acid-containing urea-based compound fertilizer and preparation method thereof

Examples

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Effect test

Embodiment 1

[0025] A urea-based compound fertilizer containing alginic acid, which is made of the following raw materials in parts by weight: 30 parts of urea, 15 parts of ammonium sulfate, 12 parts of monoammonium phosphate, 10 parts of potassium sulfate, 2 parts of alginic acid, boric acid 1 part, manganese sulfate 2 parts, superphosphate 7 parts, paraffin oil 1 part.

[0026] The preparation method of the urea-based compound fertilizer containing alginic acid comprises the following steps:

[0027] (1) Take each raw material according to the above ratio, and grind potassium sulfate, ammonium sulfate, manganese sulfate, monoammonium phosphate, alginic acid and boric acid into powder;

[0028] (2) Add calcium superphosphate into the mixing tank and preheat to 80°C for later use;

[0029] (3) Put urea into the melting tank, heat to 130°C, melt, then transfer into the mixing tank;

[0030] (4) Potassium sulfate, ammonium sulfate and manganese sulfate of the powder are dropped into the mi...

Embodiment 2

[0035] A urea-based compound fertilizer containing alginic acid, which is made of the following raw materials in parts by weight: 25 parts of urea, 15 parts of ammonium sulfate, 10 parts of monoammonium phosphate, 12 parts of potassium sulfate, 2 parts of alginic acid, boric acid 1 part, manganese sulfate 1 part, superphosphate 10 parts, paraffin oil 1 part.

[0036] The preparation method of the urea-based compound fertilizer containing alginic acid comprises the following steps:

[0037] (1) Take each raw material according to the above ratio, and grind potassium sulfate, ammonium sulfate, manganese sulfate, monoammonium phosphate, alginic acid and boric acid into powder;

[0038] (2) Add calcium superphosphate into the mixing tank and preheat to 80°C for later use;

[0039] (3) Put urea into the melting tank, heat to 130°C, melt, then transfer into the mixing tank;

[0040] (4) Potassium sulfate, ammonium sulfate and manganese sulfate of the powder are dropped into the mi...

Embodiment 3

[0045] A urea-based compound fertilizer containing alginic acid, which is made of the following raw materials in parts by weight: 45 parts of urea, 28 parts of ammonium sulfate, 13 parts of monoammonium phosphate, 10 parts of potassium sulfate, 1 part of alginic acid, boric acid 2 parts, manganese sulfate 2 parts, superphosphate 5 parts, paraffin oil 2 parts.

[0046] The preparation method of the urea-based compound fertilizer containing alginic acid comprises the following steps:

[0047] (1) Take each raw material according to the above ratio, and grind potassium sulfate, ammonium sulfate, manganese sulfate, monoammonium phosphate, alginic acid and boric acid into powder;

[0048] (2) Add calcium superphosphate into the mixing tank and preheat to 80°C for later use;

[0049] (3) Put urea into the melting tank, heat to 130°C, melt, then transfer into the mixing tank;

[0050] (4) Potassium sulfate, ammonium sulfate and manganese sulfate of the powder are dropped into the m...

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Abstract

The invention discloses an alginic acid-containing urea-based compound fertilizer. The urea-based compound fertilizer is prepared from the following raw materials in parts by weight: 25-45 parts of urea, 15-28 parts of ammonium sulfate, 10-13 parts of monoammonium phosphate, 10-12 parts of potassium sulfate, 1-2 parts of alginic acid, 1-2 parts of boric acid, 1-2 parts of manganese sulfate, 5-10 parts of calcium superphosphate and 1-2 parts of paraffin oil. The alginic acid-containing urea-based compound fertilizer disclosed by the invention is high in utilization rate, good in slow-release effect and durable in fertilizer effect; obvious effects of increasing yield, promoting tip growth and unfolding leaves can be achieved after one-time application; yields of tea leaves and rice are respectively increased by 10-14% and 8-10%; and the yield of crops is effectively improved. The alginic acid-containing urea-based compound fertilizer can effectively improve the content of functional organic matter in soil and improve the soil environment.

Description

technical field [0001] The invention relates to the field of compound fertilizers, in particular to a urea-based compound fertilizer containing alginic acid and a preparation method of the urea-based compound fertilizer. Background technique [0002] Compound fertilizers are widely used in the field of agricultural production in my country, with many types of nutrients, high nutrient content, high awareness of farmers, and large production capacity. Compound fertilizer has fast fertilizer effect, short fertilizer effect and low utilization rate, so it is often used excessively in agricultural production. Excessive use of compound fertilizers will cause damage to the soil structure, decrease in natural biodiversity, pollution of rivers, lakes and seas, eutrophication, and decline in the quality of agricultural products. In particular, soil compaction, soil salinization, and soil degradation caused by excessive use of compound fertilizers have also aggravated the occurrence o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04C05G3/08C05G3/80C05G3/90
CPCC05B1/02C05G3/00C05G5/38C05G3/90C05G3/80
Inventor 张琳秦益民韩西红王海朋申培丽高岩
Owner 青岛明月蓝海生物科技有限公司
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