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Polymer emulsion coated slow release fertilizer taking nanomaterial as carrier and preparation method thereof

A technology of polymer emulsion and nanomaterials, which is applied in the field of polymer emulsion-coated slow-release fertilizer and its preparation, can solve the problems of low fertilizer efficiency and no slow-release effect, and achieve the effect of improving the soil aggregate structure

Active Publication Date: 2011-09-14
成都正光生态工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In recent years, the research, development and practical use of slow-release fertilizers have developed rapidly, and many slow-release chemical fertilizers (compound fertilizers, compound fertilizers), microbial fertilizers and other varieties have appeared one after another. A Chinese patented bio-organic fertilizer and its preparation method (CN200320108605), the organic fertilizer obtained by fermenting straw, weeds or industrial dross, leftovers, human and livestock manure, urine, etc. through microbial fermentation and adding a certain amount of nitrogen, phosphorus, and potassium nutrients has an effect on crops Quality assurance and soil improvement have a certain effect, but the fertilizer efficiency is not high, and it does not have obvious slow-release effect

Method used

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  • Polymer emulsion coated slow release fertilizer taking nanomaterial as carrier and preparation method thereof
  • Polymer emulsion coated slow release fertilizer taking nanomaterial as carrier and preparation method thereof
  • Polymer emulsion coated slow release fertilizer taking nanomaterial as carrier and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0077] Embodiment 1, a polymer emulsion coated slow-release fertilizer with nanomaterials as the carrier, which is composed of the following components in weight ratio: nanometer soil material 18, moderately fermented bacteria residue 12, moderately fermented manure 20, moderately fermented green manure 14. Coal washing slime 15, NPK fertilizer 9, oxidized starch 5, silicone modified acrylate emulsion 10, crosslinking agent 0.02.

[0078] The moderately fermented bacteria residue is composed of the following components by weight ratio before fermentation: waste bacteria residue 70, bacteria species 3, fly ash 0.5, organic nitrogen source 9, auxiliary materials 17.5.

[0079] The cross-linking agent is borax.

[0080] Described strain is ferment bacterium.

[0081] The auxiliary material is straw.

[0082] The method for preparing the above-mentioned slow-release fertilizer coated with a polymer emulsion using nanomaterials as a carrier comprises the following steps:

[0083...

Embodiment 2

[0091] The special treatment liquid is composed of components in the following weight ratio: sulfuric acid: calcium fluorophosphate 3Ca 3 (PO 4 )2CaF 2 : Phosphogypsum CaSO 4 2H 2 The weight ratio of O: water: straw powder: nitrogen fertilizer compound is 2.2: 0.9: 1.2: 2.7: 0.7: 0.4. Embodiment 2, a polymer emulsion coated slow-release fertilizer with nanomaterials as the carrier, which is composed of the following components in weight ratio: nano-soil material 16, moderately fermented bacteria residue 12, moderately fermented manure 22, moderately fermented green manure 14. Coal washing slime 15, NPK fertilizer 9, oxidized starch 5, silicone modified acrylate emulsion 10, crosslinking agent 0.02.

[0092]The moderately fermented bacteria dregs are composed of the following components in weight ratio before fermentation: 75% of waste dregs, 1 strain, 1.5% of fly ash, 5% of inorganic nitrogen sources, and 17.5% of auxiliary materials.

[0093] The crosslinking agent is zi...

Embodiment 3

[0105] The special treatment liquid is composed of components in the following weight ratio: sulfuric acid: calcium fluorophosphate 3Ca 3 (PO 4 )2CaF 2 : Phosphogypsum CaSO 4 2H 2 The weight ratio of O: water: straw powder: nitrogen fertilizer compound is 2.1: 0.6: 0.8: 1.7: 0.9: 2.2. Embodiment 3, a polymer emulsion coated slow-release fertilizer with nanomaterials as the carrier, which is composed of the following components in weight ratio: nano-soil material 16, moderately fermented bacteria residue 22, moderately fermented manure 22, moderately fermented green manure 14. Coal washing slime 16, NPK fertilizer 8, oxidized starch 5, silicone modified acrylate emulsion 10, crosslinking agent 0.02.

[0106] The moderately fermented bacteria residue is composed of the following components by weight ratio before fermentation: 80 waste bacteria residues, 3 strains, 2 fly ash, 2 organic nitrogen sources, and 13 auxiliary materials.

[0107] The crosslinking agent is a combine...

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Abstract

The invention discloses a polymer emulsion coated slow release fertilizer taking a nanomaterial as a carrier. A preparation method of the fertilizer comprises the following steps of: uniformly mixing a treated nano soil material, approximately fermented fungi residues and a nutritional raw material; and adding an organosilicone modified acrylic ester emulsion which is mixed with a crosslinking agent into the mixture and mixing uniformly to prepare the polymer emulsion coated slow release fertilizer which is provided with a water repellent film on the surface and takes a nanomaterial as a carrier. The fertilizer has the advantages that: adsorption of water and the fertilizer among carriers is realized, a basis is laid for long-acting slow release of the fertilizer, the fertilizer effect and slow release performance of the slow release fertilizer are enhanced, and the quality of an agricultural product is improved.

Description

technical field [0001] The invention relates to chemical technology, in particular to a polymer emulsion-coated slow-release fertilizer with nanomaterials as a carrier and a preparation method thereof. Background technique [0002] The extensive use of chemical fertilizers has increased crop yields, met the growing demand for food and increased the income of farmers. There is no doubt about its historical role; however, the direct consequences of long-term excessive use of chemical fertilizers are also receiving widespread attention: First, The land is becoming more and more hardened, the space for increasing production is getting smaller and smaller, and the quality of agricultural products is constantly declining. Second, in the current fertilization technology, about 60% of the fertilizer applied to the ground is lost or fixed by the soil, polluting groundwater or becoming ineffective fertilizer. . [0003] At present, during the application of nitrogen-based fertilizers...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
Inventor 薛合伦莫敬源赖中元
Owner 成都正光生态工程有限公司
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