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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 is long, but after it is applied to the soil, the problem of insufficient fertilizer supply may occur in the short term

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A kind of preparation method and using method of powdery phosphate fertilizer described in the present embodiment, carry out according to the following steps:

[0031] a, get the magnesium ammonium phosphate hexahydrate 6.5g of a waste water treatment plant, get the monoammonium phosphate 3.0g that a fertilizer factory produces, get citric acid 0.1g, oxalic acid 0.2g, get sodium methylene benzyl naphthalene sulfonate 0.15g, Sodium benzylnaphthalene sulfonate 0.05g, mixed and ground through a 150-mesh sieve;

[0032] b. Get 1000 g of rapeseed seeds, add them into the blending machine and start stirring, slowly add 10 g of powdered phosphate fertilizer in the step (a) into the blending machine, and finish stirring after 10 minutes.

Embodiment 2

[0034] A kind of preparation method and using method of powdery phosphate fertilizer described in the present embodiment, carry out according to the following steps:

[0035] a, get the magnesium ammonium phosphate hexahydrate 17g of a waste water treatment plant, get the diammonium phosphate 2.0g that a fertilizer factory produces, get fumaric acid 0.4g, oxalic acid 0.2g, get sodium methylene bis-naphthalene sulfonate 0.3g, Sodium stearate 0.1g, mixed and ground through a 200-mesh sieve;

[0036] B, get granular urea 1000g, add in the blending machine and start stirring, slowly add 20g powder phosphate fertilizer, 5g vegetable oil in the blending machine in step (a), and finish after stirring for 15 minutes;

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

Embodiment 3

[0039] A kind of preparation method and using method of powdery phosphate fertilizer described in the present embodiment, carry out according to the following steps:

[0040] a. Get 11g of magnesium ammonium phosphate hexahydrate from a wastewater treatment plant, get 8.0g of calcium superphosphate produced by a fertilizer factory, get 0.1g of glycine, 0.5g of oxalic acid, get 0.2g of sodium methylene bis-naphthalenesulfonate, stearate Acid 0.2g, mixed and ground through a 200-mesh sieve;

[0041] B, get granular urea 1000g, add in the blending machine and start stirring, slowly add 20g powder phosphate fertilizer, 5g vegetable oil in the blending machine in step (a), and finish after stirring for 15 minutes;

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

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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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