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Clear liquid complex fertilizer special for high concentration drip irrigation and method of preparing the same

A compound fertilizer and high-concentration technology, applied in the direction of urea compound fertilizer, nitrogen fertilizer, potash fertilizer, etc., can solve the problem that phosphate fertilizer cannot be topdressed, and achieve the effect of solving the shallow root system of crops, improving nutrition and reducing the amount of phosphate fertilizer used.

Active Publication Date: 2008-12-10
沃达农业科技股份有限公司
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0010] The technical problem that the present invention also needs to solve is: can combine the NPK nutrition demand characteristic of calcareous soil fertility characteristic and main crop to propose the fertilizer NPK formula suitable for local nutrient characteristic to produce; Therefore, in the critical period of crop growth and development for nutrient demand and the period of maximum efficiency, it can flexibly apply fertilizer with water according to the soil nutrient status and crop nutrient demand characteristics, so as to improve crop yield

Method used

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  • Clear liquid complex fertilizer special for high concentration drip irrigation and method of preparing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) In Reactor 1: Dissolve 42 parts of urea in 20 parts of hot water at 80°C, add 9 parts of 82% (V / V) liquid phosphoric acid and 10 parts of potassium chloride in sequence, and keep the temperature to obtain fertilizer liquid A .

[0026] (2) In reactor 2: dissolve 6 parts of fulvic acid in 10 parts of water, then add 2.5 parts of ferrous sulfate heptahydrate, 1 part of zinc sulfate heptahydrate, 1.5 parts of boric acid, and heat to 40 ° C to fully Dissolved to obtain fertilizer solution B.

[0027] (3) In the reactor 3: Pour the fertilizer solution B into the fertilizer solution A, keep it at 80°C for 30 minutes, stir evenly after the reaction is complete, without precipitation, cool to 25°C, and obtain a yellow clear liquid that is the finished product liquid Fertilizer, ready for canning.

[0028] Three representative soils in Xinjiang were selected: sandy soil, loamy soil and sandy loam soil for simulation experiments. Each pot is filled with 3.5 kg of soil, and...

Embodiment 2

[0032] (1) In Reactor 1: Dissolve 41 parts of urea in 20 parts of 80°C hot water, add 10 parts of 84% (V / V) liquid phosphoric acid and 9 parts of potassium chloride in sequence, and keep the temperature to obtain fertilizer solution A .

[0033] (2) In reactor 2: dissolve 5 parts of fulvic acid in 10 parts of water, then add 2.5 parts of ferrous sulfate heptahydrate, 2 parts of zinc sulfate heptahydrate, and 1.5 parts of boric acid, and heat to 42°C to fully Dissolved to obtain fertilizer solution B.

[0034] (3) In the reactor 3: Pour the fertilizer solution B into the fertilizer solution A, keep the reaction at 85°C for 50 minutes, stir evenly after the reaction is complete, there is no precipitation, and after cooling, a yellow clear liquid is obtained, which is the finished liquid fertilizer, that is Can be canned.

[0035]A representative calcareous loam soil in Xinjiang was selected for the simulation experiment. Each pot is filled with 20 kg of soil, and fertilizers ...

Embodiment 3

[0039] (1) Reactor 1: Dissolve 43 parts of urea in 17 parts of 90°C hot water, add 9.5 parts of 85% (V / V) liquid phosphoric acid and 9 parts of potassium chloride in sequence, and keep the temperature to obtain fertilizer solution A.

[0040] (2) Reactor 2: Dissolve 5-6 parts of fulvic acid in 10 parts of water, then add 2-2.5 parts of ferrous sulfate heptahydrate, 1-2 parts of zinc sulfate heptahydrate, 1.5 parts of boric acid, and heat to 45°C to fully dissolve to obtain fertilizer solution B.

[0041] (3) Reactor 3: Pour the fertilizer solution B into the fertilizer solution A, keep it at 90°C for 30 minutes, stir evenly after the reaction is complete, without precipitation, and after cooling, a yellow clear liquid is obtained, which is the finished liquid fertilizer, ready for canning Pack.

[0042] Four different fertilizer treatments and one blank control were set up in the experiment: 1. All base fertilizer of traditional fertilizer, 2. All base fertilizer of liquid fe...

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Abstract

The invention relates to a high-concentration clear liquid compound fertilizer special for drop irrigation and a production method thereof. The fertilizer is prepared by dissolving urea, liquid phosphoric acid and potassium chloride, green vitriol, zinc vitriol, boric acid and fulvic acid in water with different temperatures in two steps and then mixing the compositions. The liquid compound fertilizer has the advantages that: the liquid compound fertilizer has good physical characteristics, can not deposit for long-term storage, has full nutrients to fully supplement various elements required by crops, can accelerate the growth of a crop root system and prevent precipitation reaction from blocking drop holes, in particular, the liquid compound fertilizer can obviously activate inorganic phosphorus pool of soil and reduce pH value of limy soil so as to greatly improve utilization efficiency of nitrogen and phosphorus nutrient resources. The clear liquid compound fertilizer can be separately applied for basal application and dressing, also can be used as a foliar fertilizer after diluted, and also can be mixed with other fertilizers for application, in particular has wide application respect in drop irrigation areas with the limy soil.

Description

Technical field: [0001] The invention relates to a high-concentration special clear liquid fertilizer for drip irrigation and a preparation method thereof, in particular to a high-concentration special clear liquid compound fertilizer for drip irrigation suitable for drip irrigation in northern calcareous soils and a production method thereof. Background technique: [0002] At present, the development trend of fertilizers in the world is high concentration, compounding and liquefaction. In some arid areas, especially in the northwest of my country, drip irrigation is the most suitable efficient water-saving irrigation method for agricultural production in this area. Therefore, fertilization with water and the drip irrigation and fertilization technology of integrated management of water and fertilizer came into being. It is the research and development of drip irrigation clear liquid compound fertilizer under the condition of drip irrigation, which has broad production and ap...

Claims

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Application Information

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IPC IPC(8): C05G1/00C05C9/00C05B17/00C05D1/02C05F11/02
Inventor 褚贵新李明发李俊华危常州国秀丽
Owner 沃达农业科技股份有限公司
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