Novel agricultural fertilizer and preparation method thereof

A new type of fertilizer technology, applied in agriculture, fertilizer forms, organic fertilizers, etc., can solve the problems of low-value utilization of wheat straw, environmental pollution, resource waste, etc., and achieve the goal of improving degradation performance, avoiding secondary pollution, and increasing utilization rate Effect

Inactive Publication Date: 2016-11-23
韩立
View PDF2 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing utilization status is that a considerable part of wheat straw is used at low value or directly

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 Construction

[0010] A new type of slow and controlled release fertilizer, the fertilizer uses attapulgite embedded with urea and sodium alginate matrix as the core, and the carboxymethylated modified wheat straw / sodium alginate blend containing urea and borax as the inner layer Coating material, with poly(acrylic acid-co-N-methylolacrylamide) / attapulgite composite superabsorbent resin as the outer coating material, the fertilizer has a core-shell structure, nitrogen content is 23.3%, boron The content is 0.65%.

[0011] Crop wheat straw and N-methylolacrylamide are introduced as cross-linking agents.

[0012] The preparation method of novel agricultural fertilizer comprises the steps:

[0013] (1) Pass the above-mentioned raw material components through a 120-250 mesh sieve after metering and pulverization, put them into a blender and mix and stir for 20 minutes, and carry them into disc steam granulation by conveying;

[0014] (2) The resulting pellets enter the dryer for drying, then a...

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 novel agricultural fertilizer and a preparation method thereof. Urea entrapped attapulgite and a sodium alginate substrate are taken as inner cores of the fertilizer, a carboxymethyl modified wheat straw/sodium alginate blend containing urea and borax is taken as an inner coating material, poly(acrylic acid-co-N-methylolacrylamide) attapulgite composited super absorbent resin is taken as an outer coating material, and the fertilizer has a core-shell structure and contains 23.3% of nitrogen and 0.65% of boron. The crop wheat straw is introduced and N-methylolacrylamide is taken as a crosslinking agent. The novel agricultural fertilizer has the beneficial effects as follows: with introduction of the crop wheat straw and application of N-methylolacrylamide as the crosslinking agent, the degradation property of the super absorbent resin can be improved; double layers of the coating materials of the fertilizer both select the crop straw, so that the production cost of the slow release fertilizer can be reduced greatly, the fertilizer is environment-friendly, and one way is provided for utilization of crop resources.

Description

technical field [0001] The invention relates to the field of fertilizers, in particular to novel agricultural fertilizers. Background technique [0002] As population, resources, and environmental issues become increasingly prominent, agricultural production must optimize nutrient use efficiency from economic and environmental perspectives while ensuring high yields. Slow and controlled-release fertilizers can significantly improve the utilization rate of fertilizers, reduce nutrient volatilization and leaching losses, and reduce environmental pollution caused by excessive fertilization, so they have attracted extensive attention from researchers. Wheat straw is a renewable resource with a huge amount in nature. It is rich in cellulose components and can play an important role in many fields. However, the existing utilization status is that a considerable part of wheat straw is used at low value or directly discarded and burned, which is not only a huge waste of resources, ...

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): C05G3/00C05G5/00
CPCC05C9/00C05G3/00C05G5/12C05G5/30C05D9/00C05D9/02C05F11/00
Inventor 韩立
Owner 韩立
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