Red mud composite fertilizer and preparation method thereof

A technology of compound fertilizer and nitrogen, phosphorus and potassium compound fertilizer, which is applied in the field of red mud compound fertilizer and its preparation, can solve the problems of no slow-release effect and incomplete nutrition of red mud fertilizer, so as to enhance physiological activity and nutrient metabolism function, improve The ability of crops to resist nature, the effect of dark green leaves

Inactive Publication Date: 2016-09-21
胡玉清
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The invention provides a red mud compound fertilizer and a preparation method thereof, which solves the problems of incomplete nutrition and no slow-release effect of the existing red mud fertilizer

Method used

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  • Red mud composite fertilizer and preparation method thereof
  • Red mud composite fertilizer and preparation method thereof
  • Red mud composite fertilizer and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0037] . A red mud compound fertilizer, comprising 60-70 parts by weight of red mud, 3-5 parts of red mud activator, 30-40 parts of nitrogen, phosphorus and potassium compound fertilizer, wherein N, P 2 o 5 and K 2 The mass ratio of O is 1:0.3~0.6:0.3-0.5; the red mud activator includes 30-40 parts of activated carbon, 50-60 parts of medical stone, 2-3 parts of magnesium sulfate and chlorine 1-2 parts of zinc chloride.

[0038] Its preparation method comprises the following steps:

[0039] (1) Dry the red mud at 120-300 degrees, and then grind it into 90-100 mesh fine powder for later use;

[0040] (2) Preparation method of red mud activator: (1) dissolve phytase, magnesium sulfate and zinc chloride in water to form an aqueous solution, (2) then add activated carbon and medical stone for adsorption; (3) end of adsorption Finally, add bamboo fiber and polyacrylamide, mix evenly, dry, and pulverize into 100-150 mesh particles to obtain the red mud activator. The adsorption ...

Embodiment 2

[0051] A red mud compound fertilizer, in parts by weight, comprising 60-70 parts of red mud, 3-5 parts of red mud activator, 30-40 parts of nitrogen, phosphorus and potassium compound fertilizer, wherein N, P 2 o 5 and K 2 The mass ratio of O is 1:0.3~0.6:0.3-0.5; the red mud activator includes 30-40 parts of activated carbon, 50-60 parts of medical stone, 2-3 parts of magnesium sulfate and chlorine 1-2 parts of zinc chloride; also includes 5-10 parts of plant ash and 3-5 parts of EM compound microbial agent;

[0052] Its preparation method comprises the following steps:

[0053] (1) Dry the red mud at 120-300 degrees, and then grind it into 90-100 mesh fine powder for later use;

[0054] (2) Preparation method of red mud activator: (1) dissolve phytase, magnesium sulfate and zinc chloride in water to form an aqueous solution, (2) then add activated carbon and medical stone for adsorption; (3) end of adsorption Finally, add bamboo fiber and polyacrylamide, mix evenly, dry,...

Embodiment 3

[0066] A red mud compound fertilizer, comprising 65 parts by weight of red mud, 4 parts of red mud activator (35 parts of activated carbon, 60 parts of medical stone, 2 parts of magnesium sulfate, 1 part of zinc chloride, 20 parts of bamboo fiber , 5.5 parts of phytase and 10 parts of polyacrylamide), 31 parts of nitrogen, phosphorus and potassium compound fertilizer (N, P 2 o 5 and K 2 O (mass ratio 1:0.6:0.3) also includes 3-5 parts of Chinese medicine components, said Chinese medicine components in parts by weight, including 2-4 parts of mint, 1-3 parts of centipede, 2- 5 parts, 2-5 parts of curculigo, 1-3 parts of Sophora bark and 2-6 parts of Sophora flavescens;

[0067] Its preparation method comprises the following steps:

[0068] (1) Dry the red mud at 120-300 degrees, and then grind it into 90-100 mesh fine powder for later use;

[0069] (2) add mint, basilica, spatholobus, curculigo, bark of Vitex and flavescens, add water to 50-60 degrees, extract for 5-6 hours,...

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Abstract

The invention relates to a red mud composite fertilizer and a preparation method thereof. By weight, the red mud composite fertilizer comprises 60-70 parts of red mud, 3-5 parts of a red mud activator, and 30-40 parts of a nitrogen phosphorus and potassium compound fertilizer, wherein the mass ratio of N, P2O5 and K2O in the compound fertilizer is 1:0.3-0.6:0.3-0.5. The red mud activator comprises, by weight, 30-40 parts of activated carbon, 50-60 parts of medical stone, 15-20 parts of bamboo fiber, 5-6 parts of phytase, 2-3 parts of magnesium sulfate, 1-2 parts of zinc chloride and 5-10 parts of polyacrylamide. The red mud composite fertilizer has comprehensive nutrition, contains more than 40 nutrient elements, and can comprehensively supply nutrients needed by crops. The water stability of the product is increased by more than 10 times. The product has very strong chelation, adsorption and ion exchange capacity to nutrient elements, can enrich and store the nutrient elements in soil and fertilizers, coincides with crops' need for fertilizers and has slow release performance, and achieves ''on-demand supply'' or ''on-demand release'', thereby overcoming the contradiction between rapid fertilizer loss and slow crop absorption.

Description

technical field [0001] The invention relates to a technology for comprehensive utilization of red mud, in particular to a red mud compound fertilizer and a preparation method thereof. Background technique [0002] The application of chemical fertilizers in agricultural production has a history of more than 100 years. The development of chemical fertilizers has experienced simple chemical fertilizers (liquid ammonia, urea), binary compound fertilizers (diammonium phosphate), and ternary compound (mixed) fertilizers ( Nitrogen, phosphorus and potassium), silicon-calcium compound (mixed) fertilizers, organic-inorganic compound fertilizers, etc., are currently developing in the direction of slow-release fertilizers. Chemical fertilizers play a decisive role in agricultural production. According to estimates by the Food and Agriculture Organization of the United Nations, the 1 / 3 of the world's grain production comes from chemical fertilizers. According to the statistics of my count...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
CPCC05B17/00C05D9/00C05G3/00C05D5/00C05F11/08C05F5/00
Inventor 胡玉清
Owner 胡玉清
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