Carbon coupled stable compound fertilizer and preparation method thereof

A stable and compound fertilizer technology, applied in the direction of urea compound fertilizer, inorganic fertilizer, fertilizer mixture, etc., can solve the problem of low utilization rate of nitrogen fertilizer, achieve the effect of reducing heavy metal content, enhancing the ability to resist diseases and insect pests, and increasing nitrogen fixation

Inactive Publication Date: 2019-03-01
SHENYANG INST OF APPL ECOLOGY CHINESE ACAD OF SCI
View PDF8 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under the current form, the demand for nitrogen fertilizer is only increasing, and the utilization rate of nitrogen fertilizer is low. Whether it is from the perspective of economic interests or environmental protection, improving the utilization rate of nitrogen fertilizer and reducing nitrogen loss is a problem that needs to be solved urgently. The production of more efficient Stable nitrogen fertilizer has a very broad development space

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Carbon coupled stable compound fertilizer and preparation method thereof
  • Carbon coupled stable compound fertilizer and preparation method thereof
  • Carbon coupled stable compound fertilizer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The components of the carbon-coupled stable compound fertilizer include urea, superphosphate, potassium sulfate, urease inhibitors, and polyglutamic acid.

[0027] Based on 100 parts by weight of urea slurry, add 50 parts of superphosphate, 100 parts of potassium sulfate, 5 parts of ammonium thiosulfate, methanol with a volume concentration of 37% that can dissolve ammonium thiosulfate, and 20 parts of γ-polyglucose acid.

[0028] Preparation:

[0029] Based on 100 parts (kg) of urea slurry (molten urea), 5 parts of ammonium thiosulfate are dissolved in 300-500ml (400ml volume concentration here) of 37% methanol (as the carrier of the slow-release agent), fully mixed Dissolve 20 parts of γ-polyglutamic acid in water and mix evenly; superphosphate is pre-dried by the direct heating method of flue gas parallel flow to reduce the moisture content to below 5%, and the inlet temperature of flue gas 400-500°C, and the material outlet temperature is generally 75-85°C. Calcu...

Embodiment 2

[0031] The components of the carbon-coupled stable compound fertilizer include urea, triple superphosphate, potassium chloride, urease inhibitor, nitrification inhibitor, and γ-polyglutamic acid.

[0032] Based on 100 parts by weight (100 kilograms) of urea slurry, add 50 parts of superphosphate, 100 parts of potassium chloride, 2.5 parts of ammonium thiosulfate, 2.5 parts of 3,4-dimethylpyrazole phosphate, 300-500ml (here, 400ml) of methanol with a volume concentration of 37% capable of dissolving ammonium thiosulfate and 3,4-dimethylpyrazole phosphate, and 20 parts of γ-polyglutamic acid.

[0033] Preparation:

[0034] Based on 100 parts of urea slurry (melted urea), 2.5 parts of ammonium thiosulfate and 2.5 parts of 3,4-dimethylpyrazole phosphate were dissolved in 300-500ml (400ml here) of 37% of the volume concentration Methanol (as the carrier of the sustained release agent), fully mixed; 20 parts of γ-polyglutamic acid was dissolved in water and mixed evenly; the flow r...

Embodiment 3

[0036] The components of the carbon-coupled stable compound fertilizer include urea, nitrification inhibitor, superphosphate, potassium chloride, and gamma-polyglutamic acid.

[0037] Based on 100 parts (100 kg) of urea slurry, add 50 parts of superphosphate, 100 parts of potassium chloride, and 5 parts of 3,4-dimethylpyrazole phosphate to make 3,4-dimethyl Pyrazole phosphate was dissolved in methanol with a volume concentration of 37%, and 20 parts of γ-polyglutamic acid.

[0038] Preparation:

[0039] Based on 100 parts of urea slurry (molten urea), 5 parts of 3,4-dimethylpyrazole phosphate are dissolved in 300-500ml (400ml here) of 37% methanol (as a slow-release agent) of volume concentration Carrier), fully mixed; dissolve 20 parts of polyglutamic acid in water and mix evenly; calculate the flow rate through the metering pump, add the above two mixed solutions, 50 parts of superphosphate, and 100 parts of potassium chloride to the urea slurry Among them, using the equip...

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

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
Login to view more

Abstract

The invention relates to compound (mixed) fertilizers, in particular to a carbon coupled stable compound fertilizer and a preparation method thereof. The fertilizer is prepared from a nitrogen fertilizer (urea nitrogen fertilizer), a phosphorus fertilizer, a potassium fertilizer, biochemical inhibitors (namely a urase inhibitor and / or a nitrification inhibitor) and a carbon source. Urea serves asthe nitrogen fertilizer; the phosphorus fertilizer comprises calcium superphosphate and triple superphosphate; the potassium fertilizer comprises potassium chloride and potassium sulfate, and a weightpart ratio of the nitrogen fertilizer, the phosphorus fertilizer, the potassium fertilizer, the biochemical inhibitors and the carbon source is 1:(0.3-0.5):(0.8-1):(0.001-0.1):(0.1-0.3). By adding ofa certain quantity of the carbon source into the fertilizer, the nitrogen fertilizer release time is prolonged while the nitrogen fertilizer release rate is decreased, slow and steady fertilizer efficiency is realized, various nutrition demands of crops in different growth stages are met, contradiction between crop fertilizer demands and soil fertilizer supply is solved, greenhouse gas emission and nitrogen leaching are reduced, and the compound fertilizer is a novel carbon coupled stable compound fertilizer.

Description

technical field [0001] The invention relates to the field of soil and chemical fertilizers, specifically a carbon-coupled stable compound fertilizer and its preparation method, which can not only provide a certain amount of nitrogen source for soil, but also supplement the loss and waste of nitrogen caused by insufficient carbon source , fix the nitrogen source in the soil in the form of microbial biomass nitrogen and immobilized ammonium, promote crop growth, and meet the nutritional needs of crops at each growth stage. Stable fertilizers can also reduce greenhouse gas emissions and protect the environment. Background technique [0002] Nitrogen is one of the essential nutrients for crop growth. The application of nitrogen fertilizer plays an important role in improving the yield and quality of crops. The amount of nitrogen fertilizer application accounts for about 60% of the total amount of chemical fertilizers. However, the utilization rate of nitrogen fertilizer in our c...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04C05G3/08C05G3/80C05G3/90
CPCC05B1/02C05B1/04C05G3/00C05G3/80C05G3/90C05C9/00C05C11/00C05D1/02Y02P60/21
Inventor 张丽莉于春晓武志杰杨立杰
Owner SHENYANG INST OF APPL ECOLOGY CHINESE ACAD OF SCI
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