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Lignin slow-release fertilizer

A slow-release fertilizer and lignin technology, applied in the agricultural field, can solve the problems of waste of biomass resources, low production efficiency and high production cost, and achieve the effects of large-scale production, high absorption efficiency and easy operation.

Inactive Publication Date: 2016-02-24
谈学文
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When 2 tons of fiber raw materials produce 1 ton of pulp, about 400kg of lignin is dissolved in papermaking waste liquid. As a by-product of papermaking industry, lignin will not only waste a lot of biomass resources, but also cause severe environmental pollution
But the technology of this invention is complicated, and production cost is high, and production efficiency is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A lignin slow-release fertilizer, which is composed of the following raw materials in parts by weight: 50 parts of lignin, 25 parts of montmorillonite, 5 parts of slow-release glue, 4 parts of potassium sulfate, 8 parts of activated carbon, 20 parts of sodium nitrite, urea 20 parts, 5 parts of copper sulfate, 2 parts of manganese mud.

[0020] In this embodiment, the lignin is ammoniated lignin.

[0021] In this embodiment, the slow-release gel is carboxymethylcellulose gel.

[0022] A preparation method of lignin slow-release fertilizer, comprising the following steps:

[0023] (1) Put the above raw materials into the blender according to the ratio and stir for chelation;

[0024] (2) After the mixed raw materials are crushed and granulated, they are sent to a drying box for drying, and then air-cooled to room temperature;

[0025] (3) The above-mentioned cooled material is sieved by a sieving machine to obtain pellets with a particle size of 1 mm, and then coated t...

Embodiment 2

[0028] A lignin slow-release fertilizer, which is composed of the following raw materials in parts by weight: 64 parts of lignin, 28 parts of montmorillonite, 8 parts of slow-release glue, 6 parts of potassium sulfate, 6 parts of activated carbon, 20 parts of sodium nitrite, urea 13 parts, copper sulfate 7 parts, manganese mud 5 parts.

[0029] In this embodiment, the lignin is ammoniated lignin.

[0030] In this embodiment, the slow-release gel is carboxymethylcellulose gel.

[0031] A preparation method of lignin slow-release fertilizer, comprising the following steps:

[0032] (1) Put the above raw materials into the blender according to the ratio and stir for chelation;

[0033] (2) After the mixed raw materials are crushed and granulated, they are sent to a drying box for drying, and then air-cooled to room temperature;

[0034] (3) The above-mentioned cooled material is sieved by a sieving machine to obtain pellets with a particle size of 1 mm, and then coated to obta...

Embodiment 3

[0037] A lignin slow-release fertilizer, which is composed of the following raw materials in parts by weight: 70 parts of lignin, 20 parts of montmorillonite, 5 parts of slow-release glue, 6 parts of potassium sulfate, 8 parts of activated carbon, 15 parts of sodium nitrite, urea 15 parts, copper sulfate 7 parts, manganese mud 5 parts.

[0038] In this embodiment, the lignin is ammoniated lignin.

[0039] In this embodiment, the slow-release gel is carboxymethylcellulose gel.

[0040] A preparation method of lignin slow-release fertilizer, comprising the following steps:

[0041] (1) Put the above raw materials into the blender according to the ratio and stir for chelation;

[0042] (2) After the mixed raw materials are crushed and granulated, they are sent to a drying box for drying, and then air-cooled to room temperature;

[0043] (3) The above-mentioned cooled material is sieved by a sieving machine to obtain pellets with a particle size of 1 mm, and then coated to obta...

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Abstract

The invention discloses a lignin slow-release fertilizer and relates to the technical field of agriculture. The lignin slow-release fertilizer is prepared from, by weight, 50-70 parts of lignin, 20-35 parts of imvite, 5-10 parts of slow-release adhesive, 2-8 parts of potassium sulfate, 5-10 parts of activated carbon, 15-25 parts of sodium nitrite, 10-20 parts of urea, 5-10 parts of copper sulfate and 2-6 parts of manganese mud. The lignin, the imtive, the urea and the sodium nitrite are used as main raw materials and matched with other proper auxiliary materials, the obtained slow-release fertilizer is high in nutrition value and adsorption efficiency, the certain amount of microelement manganese mud is added in the formula, and the lignin slow-release fertilizer is a catalyst for some chemical reactions and an activating agent of various enzyme reactions; the element manganese is tightly related with photosynthetic crops, formation of chlorophyll in the crops can be facilitated, the crop growth rate can be increased, and the production technology is simple, easy to implement and capable of achieving large-scale production.

Description

technical field [0001] The invention relates to the field of agricultural technology, in particular to a lignin slow-release fertilizer. Background technique [0002] The amount of lignin on the earth is second only to cellulose, and it is the second largest natural polymer. The content of lignin in wood is 20-40%, and the content of lignin in grass raw materials is 15-20%. When 2 tons of fiber raw materials produce 1 ton of pulp, about 400kg of lignin is dissolved in papermaking waste liquid. As a by-product of papermaking industry, lignin will not only waste a lot of biomass resources, but also cause Serious environmental pollution. [0003] my country is a big country in the production and use of fertilizers, but the existing fertilizers have problems such as low utilization rate, short fertilizer effect period, and single function. Among them, the fertilizer effect period of nitrogen fertilizer is only 30-50 days, while the fertilizer period of general crops is 90-120...

Claims

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Application Information

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IPC IPC(8): C05G3/00
Inventor 谈学文
Owner 谈学文
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