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Lumbrukinase compound fertilizer and preparation method thereof

A technology of lumbrokinase and compound fertilizer, which is applied in fertilization equipment, fertilizer mixture, application, etc., can solve the problems such as difficulty in mastering the application method and dosage of lumbrokinase, increased material and labor input costs, and organic matter cannot be decomposed quickly, etc., to achieve The effect of preventing soil compaction and soil erosion, preventing surface soil erosion, and inhibiting irrigation water loss

Inactive Publication Date: 2013-05-08
中国科学院遗传与发育生物学研究所农业资源研究中心 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the application of chemical fertilizers in agriculture has the following problems: 1. Long-term use of chemical fertilizers causes soil compaction; 2. The organic matter in the soil cannot be decomposed quickly when the straw is returned to the field; 3. The loss of nutrients is serious and the groundwater is polluted
However, the current application of lumbrokinase in agricultural production is very limited. On the one hand, due to technical reasons, it is difficult for farmers to grasp the application method and dosage of lumbrokinase. not obvious
Using modern industrial technology, compound fertilizer and lumbrokinase are granulated together in a certain proportion, and one-time application in the farmland can effectively solve the above problems. At present, there is no report on compound lumbrokinase fertilizer.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] To prepare lumbrokinase compound fertilizer (26-0-0), the contents of nitrogen, phosphorus pentoxide, and potassium oxide were 26%, 0%, and 0%, respectively, which were percentages by mass.

[0037] 1. Crushing, measuring and mixing of raw materials

[0038] According to the production of 1000kg of finished products, measure 170kg of urea, 700kg of ammonium chloride, and 90kg of bentonite, and transport the pulverized and measured raw materials to the mixer for stirring and mixing.

[0039] 2. Granulation

[0040] The raw materials mixed in step 1 are transported to the spray drum granulator, and 30kg of sulfuric acid and 10kg of liquid ammonia are added to the spray drum granulator through the TAV tubular reactor; under normal pressure, use sulfuric acid, The chemical reaction heat of liquid ammonia granulates the homogenized raw materials.

[0041] 3. Screening, drying, cooling, secondary screening

[0042] The products produced by the granulator are screened to re...

Embodiment 2

[0050] To prepare lumbrokinase compound fertilizer (28-6-6), the contents of nitrogen, phosphorus pentoxide and potassium oxide are 28%, 6% and 6% respectively, which are percentages by mass.

[0051] 1. Crushing, measuring and mixing of raw materials

[0052] According to the production of 1000kg of finished products, 380kg of urea, 290kg of ammonium chloride, 135kg of powdered monoammonium phosphate, 110kg of powdered potassium chloride, and 35kg of attapulgite are measured. Transport the measured raw materials to the mixer respectively and stir and mix them evenly.

[0053] 2. Granulation

[0054] The raw materials mixed in step 1 are transported to the spray drum granulator, and 30kg of sulfuric acid and 20kg of liquid ammonia are added to the spray drum granulator through the TAV tubular reactor; under normal pressure, use sulfuric acid, The chemical reaction heat of liquid ammonia granulates the homogenized raw materials.

[0055] 3. Screening, drying, cooling, second...

Embodiment 3

[0064] To prepare lumbrokinase compound fertilizer (20-10-10), the contents of nitrogen, phosphorus pentoxide and potassium oxide are respectively 20%, 10% and 10%, which are percentages by mass.

[0065] 1. Crushing, measuring and mixing of raw materials

[0066] According to the production of 1000kg of finished products, measure 435kg of ammonium chloride, 230kg of powdered monoammonium phosphate, 130kg of urea, and 155kg of potassium chloride, and transport the measured raw materials to the mixer for stirring and mixing.

[0067] 2. Granulation

[0068] Transport the mixed raw materials to the spray drum granulator, add 30kg of sulfuric acid and 20kg of liquid ammonia to the spray drum granulator through the TAV tubular reactor; The heat of the chemical reaction of ammonia granulates the homogenized raw material.

[0069] 3. Screening, drying, cooling, secondary screening

[0070] The products produced by the granulator are screened to meet the required granules, and the...

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Abstract

The invention discloses a lumbrukinase compound fertilizer. The lumbrukinase compound fertilizer comprises the following components in percentage by weight: a basic chemical fertilizer, 11.7-49.0% of an anti-freezing agent, 1.6-12.0% of lumbrukinase and 1.7-15.0% of a synergist. A method for preparing the lumbrukinase compound fertilizer comprises the following steps of: A, crushing raw materials, metering and uniformly mixing; B, granulating; C, screening, drying, cooling and re-screening; D, enveloping; and E, metering and packaging. The obtained lumbrukinase compound fertilizer is environment-friendly, and after the lumbrukinase compound fertilizer is applied for a long time, the granular structure of soil can be effectively improved, soil hardening is eliminated, and the infiltration capacity of the soil is improved; the buffer performance of the soil is improved, so that the harm of soil secondary salinization caused by excess fertilization to crops can be relieved; the growth and development of beneficial microorganisms in the soil are promoted, so that the utilization rate of the fertilizer is improved; and the growth of crop roots is promoted, so that the crop roots are developed, the disease resistance of crops is improved, and the crop yield is obviously increased.

Description

technical field [0001] The invention relates to the technical field of agricultural compound fertilizers, in particular to a compound fertilizer containing lumbrokinase and capable of preventing soil compaction. Background technique [0002] At present, the application of chemical fertilizers in agriculture has the following problems: 1. Long-term use of chemical fertilizers causes soil compaction; 2. The organic matter in the soil cannot be decomposed quickly when the straw is returned to the field; 3. The loss of nutrients is serious and the groundwater is polluted. [0003] In addition, in my country's agricultural production, the seasonal utilization rate of chemical fertilizers is very low. At present, the utilization rate of nitrogen fertilizer in my country is about 30%-35%, while the utilization rate of nitrogen fertilizer in foreign countries is 50-55%. One-third of the total output of nitrogen fertilizer is lost outside the farmland; the second is serious pollution...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04C05G3/80
Inventor 明华董文旭胡春胜简广福
Owner 中国科学院遗传与发育生物学研究所农业资源研究中心
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