Biogas slurry drip irrigation fertilizer and preparation method thereof

A technology of biogas slurry and fertilizer, which is applied in the direction of fertilizer mixture, fertilization device, application, etc., to achieve the effects of strong product market competitiveness, environmental protection, and promotion of ecological agriculture

Active Publication Date: 2011-10-19
INST OF AGRI RESOURCES & ENVIRONMENT SHANDONG ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After consulting relevant domestic and foreign literature, no records containing the method for preparing drip irrigation fertilizers from the biogas slurry of the present invention have been found.

Method used

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  • Biogas slurry drip irrigation fertilizer and preparation method thereof
  • Biogas slurry drip irrigation fertilizer and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0048] Embodiment 1: biogas slurry drip irrigation fertilizer, raw material components are as follows:

[0049]Concentrated biogas slurry 100kg, potassium humate 4kg, urea 8kg, potassium dihydrogen phosphate 6kg, potassium chloride 3kg, emulsifier 0.6kg, defoamer 0.1kg, chelated trace elements 1.0kg. The chelated trace element is a combination of chelated calcium, chelated iron, chelated zinc and chelated boron in a mass ratio of 1:0.5:0.4:0.3. The moisture content of the concentrated biogas slurry is 70wt%.

[0050] The preparation method is as follows:

[0051] The fresh biogas slurry from the biogas digester with normal gas production is naturally fermented in the biogas digester for more than 1 month, then added to the No. 5 Pa, the concentration time is 1h, and the water content of biogas slurry is concentrated to 70wt%. Add the concentrated biogas slurry to the No. 2 reactor, start stirring, add urea, potassium dihydrogen phosphate, potassium chloride, chelated trace ...

Embodiment 2

[0052] Embodiment 2: The preparation method is the same as in Example 1, except that the raw material components are as follows:

[0053] Concentrated biogas slurry 100kg, potassium humate 5kg, urea 7kg, potassium dihydrogen phosphate 8kg, potassium chloride 4kg, emulsifier 1.0kg, defoamer 0.2kg, chelated trace elements 1.2kg.

[0054] The chelated trace element is a combination of chelated calcium, chelated iron, chelated zinc and chelated boron in a mass ratio of 1:0.6:0.5:0.4.

[0055] The concentrated biogas slurry is fresh biogas slurry taken from a biogas digester with normal gas production, naturally fermented in a biogas digester for more than 1 month, concentrated in a vacuum, and has a water content of 68wt%.

Embodiment 3

[0056] Embodiment 3: preparation method is identical with embodiment 1, difference is, raw material component is as follows:

[0057] Concentrated biogas slurry 100kg, potassium humate 3kg, urea 10kg, potassium dihydrogen phosphate 9kg, potassium chloride 3kg, emulsifier 1.5kg, defoamer 0.2kg, chelated trace elements 1.5kg.

[0058] The chelated trace element is a combination of chelated calcium, chelated iron, chelated zinc and chelated boron in a mass ratio of 1:0.5:0.3:0.2.

[0059] The concentrated biogas slurry is fresh biogas slurry taken from a biogas digester with normal gas production, naturally fermented in a biogas digester for more than 1 month, concentrated in a vacuum, and has a water content of 72wt%.

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Abstract

The invention relates to a biogas slurry drip irrigation fertilizer and a preparation method thereof. The fertilizer is prepared from the following raw materials, parts by weight, 100 parts of condensed biogas slurry, 1 to 5 parts of potassium humate, 4 to 10 parts of monopotassium phosphate, 1 to 5 parts of potassium chloride, 0.5 to 2.0 parts of an emulsifier, 0.1 to 0.3 parts of a defoaming agent, and 0.5 to 2 parts of trace elements through steps of vacuum condensation, heating to dissolve, emulsification, filtering, sand milling by a sand mill, canning and the like. The prepared drip irrigation fertilizer, which contains various amino acids, humic acid, nitrogen, phosphor, potassium and traces elements such as iron, zinc, boron and the like required by the growth of crops, vegetablesand fruits, allows the commodification of the biogas slurry to be greatly improved and the problem of secondary pollution of the biogas engineering caused by the low utilization rate of the biogas slurry to be solved, has the advantages of simple application and high economic benefit, can be easily popularized, and is suitable for large area popularization in large, medium and small type biogas engineering, family-size biogas tanks, sunlight greenhouse fruits and vegetables, and crop planting areas.

Description

technical field [0001] The invention relates to a biogas slurry drip irrigation fertilizer and a preparation method thereof, belonging to the technical field of biogas slurry fertilizers. Background technique [0002] With the progress and development of society, people's demand for energy is increasing. Biogas as a renewable energy has been widely used in the vast rural areas. The number of large and medium-sized biogas projects is also increasing day by day, but it also brings a series of problems. [0003] Whether it is a rural household biogas digester or a large and medium-sized biogas project, in addition to generating new energy-biogas, it will also produce a large amount of biogas slurry during operation. Biogas slurry is a very good organic fertilizer. Studies have found that biogas fertilizer contains the nutrient elements N, P, K, Ca, Mg, Cu, Fe, Zn, Mn, B, etc. needed by plants, and also contains more than 10 kinds of amino acids (such as threonine, valine, phe...

Claims

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Application Information

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IPC IPC(8): C05G3/00
Inventor 王艳芹魏建林钟林姚利袁长波边文范杨果李国生张昌爱
Owner INST OF AGRI RESOURCES & ENVIRONMENT SHANDONG ACADEMY OF AGRI SCI
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