Coated degradable release-controlled fertilizer

A slow-release fertilizer and coating technology, which is applied in the field of traditional Chinese medicine preparations and its preparation, can solve the problems of inability to fully realize the utilization rate of fertilizer efficiency, unsatisfactory controlled release effect of fertilizer effect, and polluted soil.

Inactive Publication Date: 2006-12-27
曹广峰 +1
View PDF0 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some products have a good controlled-release effect on fertilizer efficiency, but their coated membrane shells pollute the soil because they are not degradable; although the membrane shells of some products do not pollute the soil, their controlled-release effect on fertilizer efficiency is not ideal
Therefore, the purpose of "improving the utilization rate of fertilizer efficiency and protecting the ecological environment" of this type of product cannot be fully realized

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

[0021] formula

[0022] Fertilizer 300 kg

[0023] Acidified rock phosphate powder 50kg

[0024] Gypsum powder 15kg

[0025] Modified urea-formaldehyde resin adhesive 20 kg

[0026] Preparation:

[0027] Coating materials, acidified phosphate rock powder and gypsum powder are ground by a grinder and then screened by a screening machine with a 100-mesh screen, and then sent to their respective metering tanks by a conveyor belt. Coating powder hopper for use. Put the fertilizer in the fertilizer metering tank to be packed into the roller mixing film forming machine, turn on the power switch to make it roll, open the spray gun connected to the modified urea-formaldehyde resin adhesive tank, and the adhesive is sprayed on the rolling film by the atomizing nozzle. On the fertilizer, turn on the blower feeder at the same time, and the coated powder is sprayed on the rolling material surface through the feeding pipe from the nozzle. Observe the display value on the flow meter an...

Embodiment 2

[0030] formula

[0031] Fertilizer 450 kg

[0032] Acidified rock phosphate powder 120kg

[0033] gypsum powder 20kg

[0034] Modified urea-formaldehyde resin adhesive 20 kg

[0035] The preparation method is the same as in Example 1.

Embodiment 3

[0037] formula

[0038] Fertilizer 400 kg

[0039] Acidified phosphate rock powder 80 kg

[0040] Gypsum powder 15kg

[0041] Modified urea-formaldehyde resin adhesive 15 kg

[0042] The preparation method is the same as in Example 1.

[0043] The structure of the osmotic coated slow-release fertilizer and the fertilizer release process in the film are basically the same as other coated slow-release fertilizers, and will not be described in detail here. The difference is that the film shell of the coated slow-release fertilizer slowly swells and degrades with the passage of time and the increase of temperature, so that the release hole of the fertilizer on the film gradually increases, and the release rate of the fertilizer increases. It is the peak period of plant fertilizer demand, conforming to the characteristics of plant fertilizer demand, greatly improving the utilization rate of fertilizer, and the complete degradation time of the membrane shell is 2-8 months.

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 discloses an integument degradable slow-release fertilizer, which comprises the following parts: 100-500 wt% fertilizer, 30-150 wt% acidified ground phosphate rock, 5-25 wt% gesso and 5-25 wt% modified urea formaldehyde condensate adhesive. The invention can be decomposed by microbe slowly to suck for soil, which displays positive relationship for decomposing rate and temperature.

Description

1. Technical field [0001] The invention relates to a traditional Chinese medicine preparation and a preparation method thereof, in particular to a degradable coated slow-release fertilizer. 2. Background technology [0002] In the past two years, the key research and development goals of the fertilizer industry at home and abroad have turned to a new type of fertilizer that improves the efficiency of fertilizer utilization and protects the ecological environment - slow and controlled release fertilizer. The key point of this type of fertilizer is the material selection and production of the controlled release film. Some products have a good controlled release effect on fertilizer effect, but their coated membrane shells pollute the soil because they are not degradable; some products have membrane shells that do not pollute the soil, but their controlled release effect on fertilizer efficiency is not ideal. Thereby can not fully realize the purpose of " improving fertilizer ...

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): C05G3/00C05G3/08C05G3/10C05G5/00C05G3/90
Inventor 朱丙臣
Owner 曹广峰
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