Preparation method for water retention type humic acid compound fertilizer

A humic acid and compound fertilizer technology, applied in fertilization devices, fertilizer mixtures, applications, etc., can solve the problems of soil compaction and low fertilizer utilization rate, and achieve the effects of simple production process, stimulating crop growth and development, and less equipment

Inactive Publication Date: 2014-05-14
TAIYUAN UNIV OF TECH
View PDF6 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems of common drought in cultivated land, serious soil compaction and low fertilizer utilization rate, the present invention provides a water-retaining humic acid compound

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Grind humic acid, urea, diammonium phosphate, and potassium chloride respectively and pass through a 60-mesh sieve, and then press acrylic acid: N, N'-methylenebisacrylamide: potassium persulfate: sodium hydroxide: water: humic acid : urea: diammonium phosphate: potassium chloride = 60: 0.05: 0.01: 14: 150: 20: 15: 12: 9 parts by mass are added to the reactor for mixing, and the reaction is carried out with continuous stirring at 70°C, and the reaction time is 5 hours . The reactant is dried at 90°C, crushed and sieved to 20 mesh, and then the water-retaining humic acid compound fertilizer can be made.

Embodiment 2

[0028] Grind humic acid, urea, diammonium phosphate, and potassium chloride respectively and pass through a 60-mesh sieve, and then press acrylic acid: N, N'-methylenebisacrylamide: ammonium persulfate: potassium hydroxide: water: humic acid : urea: diammonium phosphate: potassium chloride = 60: 0.05: 0.02: 16: 150: 30: 20: 15: 6 parts by mass are added to the reactor for mixing, and the reaction is carried out with continuous stirring at 75°C, and the reaction time is 3 hours . Dry the reactants at 70°C, crush and sieve to 60 mesh, and then make water-retaining humic acid compound fertilizer.

Embodiment 3

[0030] Grind humic acid, urea, diammonium phosphate, and potassium chloride respectively and pass through an 80-mesh sieve, then press acrylic acid: glycerol: ammonium persulfate: sodium hydroxide: water: humic acid: urea: diammonium phosphate: chlorine The mass parts of potassium chloride=30:0.02:0.01:5:100:30:30:10:20 were added to the reactor for mixing, and the reaction was carried out with continuous stirring at 65°C, and the reaction time was 4.5 hours. The reactant is dried at 20°C, crushed and sieved to 30 mesh, and then the water-retaining humic acid compound fertilizer can be made.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a preparation method for a water retention type humic acid compound fertilizer. The preparation method comprises the following steps: firstly, mixing acrylic acid, a cross-linking agent, an accelerant, a neutralizing agent, water, humic acid, urea, diammonium phosphate and potassium chloride at a certain weight ratio; continuously agitating and reacting; then, drying a reactant at a certain temperature; crushing and sieving to prepare the water retention type humic acid compound fertilizer. According to the method, a macromolecular network cross-linking structure formed by cross-linking and polymerizing the humic acid and the acrylic acid is utilized; after the water retention type humic acid compound fertilizer is applied to soil, a lot of water molecules can be absorbed and are preserved in a colloid manner, so that the irrigation water capacity and the irrigation times are reduced; the requirements of stably supplying the water to a plant root system are met; the production process is simple, needed equipment is less and the preparation cost is low; the water retention type humic acid compound fertilizer is convenient to popularize and promote and is especially applicable to arid regions.

Description

technical field [0001] The invention relates to a preparation method of humic acid compound fertilizer, in particular to a preparation method of water-retaining humic acid compound fertilizer. Background technique [0002] At present, the area of ​​arid land in my country is about 1.511 billion mu, accounting for 76% of the total cultivated land area, of which about 1.171 billion mu has no irrigation conditions. Super absorbent resin is a new type of functional polymer material. It can absorb and maintain hundreds or even thousands of times its own mass of pure water or tens of times of normal saline. It has good effects of drought resistance and water retention, and can be used as a water-retaining agent in agriculture. But because its price is too expensive, it is difficult to popularize and apply it as a water-retaining agent in agriculture. [0003] Humic acid is an organic macromolecular compound widely existing in nature, and it is the main component of soil humus, a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C05G3/00
Inventor 张志强张继龙王彩丽王慧芳
Owner TAIYUAN UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap