Nanometer vanadium-selenium sustained and controlled release fertilizer and preparation method thereof
A slow and controlled release fertilizer, nanotechnology, applied in the direction of fertilization device, fertilizer mixture, application, etc., to improve the utilization level, promote scientific fertilization, and reduce the use of fertilizers
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0024] Example one:
[0025] First, take 32 parts by weight of urea, 8 parts of diammonium phosphate, 22 parts of potassium sulfate, 20 parts of humic acid, 0.5 parts of vanadium pentoxide, 1.5 parts of sodium selenite, 13 parts of natural polymer nanocarrier shell, package 3 copies of film, each for use;
[0026] Secondly, the spare vanadium pentoxide and sodium selenite are stirred uniformly, the mixed solution of vanadium pentoxide and sodium selenite is obtained after the oxidation-reduction reaction, and then the vanadium and selenium nanoparticles are obtained by precipitation, and then combined with natural Polymer nano-carrier shells (chitooligosaccharides, starch, etc.) are mixed and stirred uniformly, and through a compound reaction, nano-vanadium and selenium sustained-release bodies are prepared for use;
[0027] Third, the spare nano vanadium and selenium sustained-release body are fully mixed with urea, diammonium phosphate, potassium sulfate, and humic acid, and stirr...
Example Embodiment
[0040] Embodiment two:
[0041] First, take 20 parts by weight of urea, 18 parts of diammonium phosphate, 12 parts of potassium sulfate, 40 parts of humic acid, 1.5 parts of vanadium pentoxide, 0.5 parts of sodium selenite, 7 parts of natural polymer nanocarrier shell, package 1 part of film, each for use;
[0042] The second to fourth steps are the same as the first embodiment.
Example Embodiment
[0043] Embodiment three:
[0044] First, take 26 parts by weight of urea, 13 parts of diammonium phosphate, 17 parts of potassium sulfate, 30 parts of humic acid, 1 part of vanadium pentoxide, 1 part of sodium selenite, 10 parts of natural polymer nanocarrier shell, package 2 copies of film, each for use;
[0045] The second to fourth steps are the same as the first embodiment.
[0046] The nano-vanadium-selenium slow-release fertilizer of the present invention can be used not only in grain and oil crops such as rice, cotton and rape, but also in economic crops such as tea, watermelon, tobacco, and fruit crops such as citrus, grapes, and pears. The main application is deep application of basal fertilizer, and it can also be used as topdressing or spraying with water.
[0047] The use method, scope and precautions of the nano-vanadium-selenium slow-release fertilizer of the present invention are as follows:
[0048]
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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