A kind of alginic acid coated compound fertilizer with urease inhibitory effect and preparation method thereof

Abstract

The invention discloses an alginic acid coated compound fertilizer with a urease inhibiting effect and a preparation method of the alginic acid coated compound fertilizer. The alginic acid coated compound fertilizer is characterized by comprising the following components in parts by weight: 40-50 parts of ammonium nitrate, 26-28 parts of diammonium phosphate, 22-24 parts of potassium sulfate, 15-18 parts of enzymic preparation residues, 5-7 parts of an amino acid synergist, 32-35 parts of sulfuric acid, 16-18 parts of liquid ammonia, 3-5 parts of humic acid, 6-8 parts of a seaweed synergist and 2-4 parts of a coating additive. The prepared fertilizer is rich in organic elements such as nitrogen, phosphorus and potassium; soil-borne diseases can be effectively prevented by addition of the enzymic preparation residues, so as to promote the fertilizer efficiency to play; due to the addition of the amino acid synergist, the damage of ammonia to crops can be reduced; the utilization rate of nutrients is improved; microelements of the soil can be effectively supplemented by the synergistic effect of chelating state microelements; and a film which is formed by mixing the seaweed synergist with the coating additive and then spraying on urea has a urease inhibiting effect and a slow-release effect, is capable of promoting increase production and naturally degrading, and is good in environmental protection property.

Description

technical field

[0001] The invention belongs to the technical field of compound fertilizer production, and in particular relates to an alginic acid-coated compound fertilizer with urease inhibitory effect and a preparation method thereof. Background technique

[0002] The development of chemical fertilizers in my country has gone through the development stage from ammonium sulfate and ammonium bicarbonate to high-concentration urea and the fourth generation nitrogen fertilizer. It has been nearly 20 years since the application went from experimental demonstration to large-scale promotion and application. At first, it was plant ash and low-concentration potassium chloride. Phosphorus compound fertilizers developed from low-concentration, single species to high-concentration diversification. The nutrient form is also constantly changing. New types of fertilizers keep coming. Fertilizer synergist, in simple terms, is a type of product that improves the utilization rate of chemic...

Examples

Embodiment 1

[0034] A kind of alginic acid coated compound fertilizer with urease inhibitory effect is characterized in that, each component of raw material is composed as follows according to weight part:

[0035] 40 parts of ammonium nitrate, 26 parts of diammonium phosphate, 22 parts of potassium sulfate, 15 parts of enzyme preparation filter residue, 5 parts of amino acid synergist, 32 parts of sulfuric acid, 16 parts of liquid ammonia, 3 parts of humic acid, 6 parts of seaweed synergist, 2 parts of coating additives.

[0036]Further, each component in the coating additive is composed as follows according to parts by weight: 4 parts of brassinosteroids, 3 parts of gibberellins, 2 parts of indole acetic acid, 3 parts of melamine alcohol, 8 parts of chitosan oligosaccharide, formazan Base cellulose 2 parts.

[0037] Further, the filter residue of the enzyme preparation is the residue after the separation of the enzyme preparation, which is sterilized at 110°C, and has a crude protein co...

Embodiment 2

[0049] A kind of alginic acid coated compound fertilizer with urease inhibitory effect is characterized in that, each component of raw material is composed as follows according to weight part:

[0050] 45 parts of ammonium nitrate, 27 parts of diammonium phosphate, 23 parts of potassium sulfate, 16 parts of enzyme preparation filter residue, 6 parts of amino acid synergist, 34 parts of sulfuric acid, 17 parts of liquid ammonia, 4 parts of humic acid, 7 parts of seaweed synergist, 3 parts of coating additives.

[0051] Further, each component in the coating additive is composed as follows according to parts by weight: 5 parts of brassinosteroids, 4 parts of gibberellins, 3 parts of indole acetic acid, 4 parts of meliflora alcohol, 10 parts of chitosan oligosaccharide, formazan 2.5 parts of base cellulose.

[0052] Further, the filter residue of the enzyme preparation is the residue after the separation of the enzyme preparation, which is sterilized at 110°C, and has a crude pr...

Embodiment 3

[0064] A kind of alginic acid coated compound fertilizer with urease inhibitory effect is characterized in that, each component of raw material is composed as follows according to weight part:

[0065] 50 parts of ammonium nitrate, 28 parts of diammonium phosphate, 24 parts of potassium sulfate, 18 parts of enzyme preparation filter residue, 7 parts of amino acid synergist, 35 parts of sulfuric acid, 18 parts of liquid ammonia, 5 parts of humic acid, 8 parts of seaweed synergist, 4 parts of coating additives.

[0066] Further, the components in the coating additive are composed as follows in parts by weight: 6 parts of brassinosteroids, 5 parts of gibberellins, 4 parts of indole acetic acid, 5 parts of meliflora alcohol, 12 parts of chitosan oligosaccharide, formazan 3 parts of base cellulose.

[0067] Further, the filter residue of the enzyme preparation is the residue after separating the enzyme preparation and sterilized at 110°C, and the crude protein content is ≥ 30%, th...

technical field

[0001] The invention belongs to the technical field of compound fertilizer production, and in particular relates to an alginic acid-coated compound fertilizer with urease inhibitory effect and a preparation method thereof. Background technique

[0002] The development of chemical fertilizers in my country has gone through the development stage from ammonium sulfate and ammonium bicarbonate to high-concentration urea and the fourth generation nitrogen fertilizer. It has been nearly 20 years since the application went from experimental demonstration to large-scale promotion and application. At first, it was plant ash and low-concentration potassium chloride. Phosphorus compound fertilizers developed from low-concentration, single species to high-concentration diversification. The nutrient form is also constantly changing. New types of fertilizers keep coming. Fertilizer synergist, in simple terms, is a type of product that improves the utilization rate of chemic...

Examples

Embodiment 1

[0034] A kind of alginic acid coated compound fertilizer with urease inhibitory effect is characterized in that, each component of raw material is composed as follows according to weight part:

[0035] 40 parts of ammonium nitrate, 26 parts of diammonium phosphate, 22 parts of potassium sulfate, 15 parts of enzyme preparation filter residue, 5 parts of amino acid synergist, 32 parts of sulfuric acid, 16 parts of liquid ammonia, 3 parts of humic acid, 6 parts of seaweed synergist, 2 parts of coating additives.

[0036]Further, each component in the coating additive is composed as follows according to parts by weight: 4 parts of brassinosteroids, 3 parts of gibberellins, 2 parts of indole acetic acid, 3 parts of melamine alcohol, 8 parts of chitosan oligosaccharide, formazan Base cellulose 2 parts.

[0037] Further, the filter residue of the enzyme preparation is the residue after the separation of the enzyme preparation, which is sterilized at 110°C, and has a crude protein co...

Embodiment 2

[0049] A kind of alginic acid coated compound fertilizer with urease inhibitory effect is characterized in that, each component of raw material is composed as follows according to weight part:

[0050] 45 parts of ammonium nitrate, 27 parts of diammonium phosphate, 23 parts of potassium sulfate, 16 parts of enzyme preparation filter residue, 6 parts of amino acid synergist, 34 parts of sulfuric acid, 17 parts of liquid ammonia, 4 parts of humic acid, 7 parts of seaweed synergist, 3 parts of coating additives.

[0051] Further, each component in the coating additive is composed as follows according to parts by weight: 5 parts of brassinosteroids, 4 parts of gibberellins, 3 parts of indole acetic acid, 4 parts of meliflora alcohol, 10 parts of chitosan oligosaccharide, formazan 2.5 parts of base cellulose.

[0052] Further, the filter residue of the enzyme preparation is the residue after the separation of the enzyme preparation, which is sterilized at 110°C, and has a crude pr...

Embodiment 3

[0064] A kind of alginic acid coated compound fertilizer with urease inhibitory effect is characterized in that, each component of raw material is composed as follows according to weight part:

[0065] 50 parts of ammonium nitrate, 28 parts of diammonium phosphate, 24 parts of potassium sulfate, 18 parts of enzyme preparation filter residue, 7 parts of amino acid synergist, 35 parts of sulfuric acid, 18 parts of liquid ammonia, 5 parts of humic acid, 8 parts of seaweed synergist, 4 parts of coating additives.

[0066] Further, the components in the coating additive are composed as follows in parts by weight: 6 parts of brassinosteroids, 5 parts of gibberellins, 4 parts of indole acetic acid, 5 parts of meliflora alcohol, 12 parts of chitosan oligosaccharide, formazan 3 parts of base cellulose.

[0067] Further, the filter residue of the enzyme preparation is the residue after separating the enzyme preparation and sterilized at 110°C, and the crude protein content is ≥ 30%, th...

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