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

A technology of urease inhibition and alginic acid, which is applied in the direction of organic fertilizers, the preparation and application of organic fertilizers, etc., can solve the problems of changes in release modes, difficulty in achieving satisfactory controlled release effects, and contamination of coating materials, so as to reduce hazards and increase growth. The effect factor level, the effect of eliminating the toxic effect

Active Publication Date: 2018-02-02
SHANDONG ENBAO BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are still many factors that affect the release of this type of fertilizer. Under different soil environments, the release mode of fertilizer may change significantly, and it is difficult to achieve a satisfactory controlled release effect. The most critical problem is that these coating materials are difficult to be decomposed and remain in the soil to form pollution

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

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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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/00C05F17/00
CPCY02W30/40
Inventor 张守福李伟李岳于金虎朱新彬李燕赵永厚贾永超张玉梅袁亮李燕婷林继山葛军勇刘义国展曼曼
Owner SHANDONG ENBAO BIOTECH
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