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A kind of slow-release synergistic phosphate fertilizer and its preparation method and application

A phosphate fertilizer and slow-release technology, which is applied in the field of slow-release and synergistic phosphate fertilizer and its preparation, can solve the problems of limited ability to release phosphorus and improve phosphorus utilization rate, low cost, and single action form, so as to facilitate the absorption and utilization of nutrients , Enhanced chelating ability, improved water solubility

Active Publication Date: 2022-04-12
STANLEY AGRI GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, common ways to improve phosphorus utilization include adding exogenous organic acids, using humic acid, alginic acid or polyglutamic acid as synergistic phosphate fertilizers, phosphorus-dissolving microbial fertilizers, etc., which are low in cost and non-polluting to the environment, but have a single form of action , has limited ability to release phosphorus from the soil and improve phosphorus availability

Method used

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  • A kind of slow-release synergistic phosphate fertilizer and its preparation method and application
  • A kind of slow-release synergistic phosphate fertilizer and its preparation method and application
  • A kind of slow-release synergistic phosphate fertilizer and its preparation method and application

Examples

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preparation example Construction

[0060] In the present invention, the algaic acid is prepared by biozymolysis, and the preparation method of algaic acid comprises: selecting high quality seaweed, the seaweed uses red algae, brown algae, green algae three or more algae; cutting dry kelp After soaking, double cleaning, subtracting the extraction tank, add 100kg kelp, 500kg water, add 300 g of extraction enzyme; the temperature of 30-55 ° C, pH4-8, extraction time is 2- 4 hours; the algae extraction rate is 40-50%; the extraction enzyme is pectinase, alkaline pectinase, cellulase and protease, and the ratio of use is 1.07: 1.3: 10: 4; enzyme extraction The biological macromolecular substance is thoroughly degraded into small molecular effective active substances, which produces algarates rich in algarates rich in algae polysaccharides, amino acid polypeptides, and endogenous hormone active small molecular materials, etc., safe and efficient.

[0061] In the present invention, the activated corrosionic acid content i...

Embodiment 1

[0064] The sustained release rate of phosphate fertilizer provided by this embodiment includes an ammonium phosphate, polyglutamic acid, activated corpic acid, alginate, polyacrylamide; housing comprises shell oligosaccharides, sulfur, citric acid, and tartic acid. Formulation: Ammonium phosphate is 85 parts by weight, 0.6 parts by weight of citric acid, 0.2 parts by weight of tartaric acid, 2 parts by weight of sulfur, oligose, 8 parts by weight of activated corpant acid, 0.3 parts by weight of polyacrylamide 1 part by weight of the algae, 5 parts by weight of polyglutamic acid.

[0065] The preparation of sustained release rate phosphate fertilizer provided in this example:

[0066] (1) According to the above weight parts, ammonium, activated corpant acid, polyacrylamide, alginic acid, polyglutamic acid, added to the roller granulator, and add 3-5 according to the granulation case The weight of the above materials is thoroughly mixed with the above materials, and the sieve is si...

Embodiment 2

[0071] The sustained release rate of phosphate fertilizer provided by this embodiment includes an ammonium phosphate, polyglutamic acid, activated corpic acid, alginate, polyacrylamide; housing comprises shell oligosaccharides, sulfur, citric acid, and tartic acid. The content of ammonium powder is 88 parts by weight, 0.6 parts by weight of citric acid, 0.6 parts by weight of tartaric acid, 2 parts by weight of sulfur, oligose, 6 parts by weight of activated corpus acid, 0.3 parts by weight of polyacrylamide, seaweed 1 parts by weight, 4 parts by weight of polyglutamic acid.

[0072] In accordance with steps (1) - (4) in Example 1, the sustained release rate phosphate fertilizer is obtained.

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Abstract

The invention relates to a slow-release and synergistic phosphate fertilizer, a preparation method and application thereof. The slow-release and synergistic phosphate fertilizer has a core-shell structure. The core is made of components including phosphate fertilizer, polyglutamic acid, activated humic acid, alginic acid, and polyacrylamide. The shell is made of ingredients including chitosan, sulfur, citric acid, and tartaric acid The components are prepared; the mass ratio of phosphate fertilizer, polyglutamic acid, activated humic acid, alginic acid and polyacrylamide is 80‑100: 0.1‑10: 0.1‑10: 0.1‑5: 0.1‑5; chitooligosaccharide, The mass ratio of sulfur, citric acid and tartaric acid is 0.1‑4:0.1‑4:0.1‑3:0.1‑3. The invention adds raw materials with biodegradation, chelation, soil structure improvement and strong pertinence to the phosphate fertilizer, so that the phosphate fertilizer has good effect and high utilization rate, meets the needs of various crops for phosphorus, can be mixed with other fertilizers, and is suitable for It can be used in various stages of crops, and has safe production, low energy consumption, and no secondary pollution.

Description

Technical field [0001] The present invention relates to the field of fertilizers, and more particularly to sustained release salvation phosphate and its preparation methods and applications. Background technique [0002] Phosphorus is an important nutrient element of plants, which is an important substance involved in the composition of the compound in vivo, and plays an important role in plant growth. The total amount of the phosphorus in the soil is 0.2-0.02%, and most of the phosphorus required for plants originate from soil absorption, and phosphorus is easily adsorbed in the soil, and the utilization is low. [0003] At present, the seasonal utilization rate of phosphate fertilizer is 10-20%. The soil in contact with the roots is limited, only 4-10% of the cultivated soil, and phosphorus can only move 1-3 cm distance in the soil, and phosphorus is easily fixed during the movement, and the crop is also limited to the soil absorption. ability. Because phosphate resources are s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/00C05G3/40C05G3/80C05G5/12C05G5/30
CPCC05G3/00C05G3/80C05G3/40C05G5/12C05G5/30C05B7/00C05C9/00C05D9/00C05F11/00C05F11/02
Inventor 高进华姚然张广忠徐勤政崔然
Owner STANLEY AGRI GRP CO LTD
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