Powdery phosphorus fertilizer as well as preparation method and using method thereof

A phosphate fertilizer and powdery technology, which is applied in the field of powder phosphate fertilizer and its preparation, can solve problems such as insufficient fertilizer supply, and achieve the effects of increasing absorption, improving fertilization efficiency, and improving use efficiency

Inactive Publication Date: 2014-11-26
HUBEI FORBON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Finally, the fertilizer effect of magnesium ammonium phosphate is between 3-8 months, and the fertilizer effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0029] Example 1:

[0030] The preparation method and use method of a powdered phosphate fertilizer described in this embodiment are carried out in the following steps:

[0031] a. Take 6.5g of magnesium ammonium phosphate hexahydrate from a wastewater treatment plant, take 3.0g of monoammonium phosphate produced by a fertilizer plant, take 0.1g of citric acid, 0.2g of oxalic acid, and take 0.15g of sodium methylenebenznaphthalene sulfonate, 0.05g of sodium benzyl naphthalene sulfonate, mixed and ground through a 150 mesh sieve;

[0032] b. Take 1000g of rapeseed, add it to the blending machine and start stirring, slowly add 10g of powdered phosphate fertilizer in step (a) into the blending machine, and stir for 10 minutes to complete.

Example Embodiment

[0033] Example 2:

[0034] The preparation method and use method of a powdered phosphate fertilizer described in this embodiment are carried out in the following steps:

[0035] a. Take 17g of magnesium ammonium phosphate hexahydrate from a wastewater treatment plant, take 2.0g of diammonium phosphate produced by a fertilizer plant, take 0.4g of fumaric acid, 0.2g of oxalic acid, and take 0.3g of sodium methylene dinaphthalene sulfonate, 0.1g of sodium stearate, grind through a 200-mesh sieve after mixing;

[0036] b. Take 1000g granular urea, add it to the blending machine and start stirring, slowly add the 20g powdered phosphate fertilizer and 5g vegetable oil in step (a) into the blending machine, and stir for 15 minutes to complete;

[0037] This product is suitable for fruit trees, turf and indoor ornamental plants.

Example Embodiment

[0038] Example 3:

[0039] The preparation method and use method of a powdered phosphate fertilizer described in this embodiment are carried out in the following steps:

[0040] a. Take 11g of magnesium ammonium phosphate hexahydrate from a wastewater treatment plant, take 8.0g of superphosphate produced by a fertilizer plant, take 0.1g of glycine, 0.5g of oxalic acid, take 0.2g of sodium methylene dinaphthalene sulfonate, and stearin Acid 0.2g, grind through 200 mesh sieve after mixing;

[0041] b. Take 1000g granular urea, add it to the blending machine and start stirring, slowly add the 20g powdered phosphate fertilizer and 5g vegetable oil in step (a) into the blending machine, and stir for 15 minutes to complete;

[0042] This product is suitable for vegetables, soybeans and other crops.

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PUM

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Abstract

The invention discloses a powdery phosphorus fertilizer as well as a preparation method and a using method thereof. The preparation method is characterized by comprising the following steps: uniformly mixing magnesium ammonium phosphate, an easily-soluble phosphorus fertilizer and an acidifier; and grinding and screening the mixture, so that the granularity of the screened materials is smaller than 150 meshes. The screened powdery fertilizer coats seeds or other granulated fertilizers. Compared with the prior art, the powdery phosphorus fertilizer has the advantages that the applied range of magnesium ammonium phosphate is expanded, and the fertilizer applying efficiency of the magnesium ammonium phosphate is improved.

Description

technical field [0001] The invention relates to a powdery phosphate fertilizer, a preparation method and a use method, and belongs to the fields of chemical fertilizer manufacturing and soil agricultural chemistry. Background technique [0002] First of all, magnesium ammonium phosphate slow-release fertilizer recovered from wastewater containing phosphorus, nitrogen, magnesium, etc. is usually sold and used in powder form. Powdered magnesium ammonium phosphate is dusty during use, and it also has problems such as inability to apply fertilizers by machine, and cannot be mixed with other fertilizers. This leads to the low value of magnesium ammonium phosphate recovered, and even because there is no market, it has become a burden for wastewater treatment plants that treat wastewater containing phosphorus, nitrogen, and magnesium with magnesium ammonium phosphate precipitation. [0003] Secondly, magnesium ammonium phosphate is a slow-release fertilizer, which is insoluble in ...

Claims

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Application Information

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IPC IPC(8): C05G3/00
Inventor 潘春翔王仁宗刘裕田楠
Owner HUBEI FORBON TECH
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