Method for preparing organic/inorganic humate foliar fertilizer

A foliar fertilizer and humic acid technology, applied in organic fertilizers, fertilization devices, fertilizer mixtures, etc., can solve the problems of insufficient fertilizer efficiency, low effective nutrient content of boron mud, and easy oxidation of trace elements, etc., to achieve Improve crop quality, improve water retention, drought resistance and cold resistance, increase drought resistance, moisture retention and stress resistance

Inactive Publication Date: 2012-08-01
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the research of using boron mud as magnesium fertilizer is of great significance, but because of the low content of effective nutrients in boron mud, direct application of fertilizer is not effective
Various types of foliar fertilizers that have been promoted and used in recent years generally have the disadvantages that trace elements are easily oxidized and not easily absorbed by plants, so the fertilizer effect has not been fully exerted

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] 1) First take dry peat (weathered coal) with a particle size of less than 0.4mm, then add peat to 1.5mol / L NaOH solution at a weight ratio of 1:4, heat up to 40°C, stir and heat for 3 hours, filter, and collect the filtrate , then mix the remaining peat and 1.5mol / L NaOH solution in a weight ratio of 1:4, heat up again, stir and heat, filter, repeat the process three times, combine the filtrate three times, and use H 2 SO 4 The pH value of the filtrate is adjusted to 5.5, and after fully stirring, it is filtered, concentrated and dried to obtain a water-soluble humic acid solid;

[0015] 2) Secondly, the poultry feathers are washed with water, and then the washed feathers are mixed with Ca(OH) with a pH value of 13 2 The supernatant was mixed according to the weight ratio of 1:3 and then cooked. The temperature was controlled at 120°C for 9 hours. After the cooking was completed, NaOH was added to adjust the pH value to 12 for alkaline hydrolysis. Stir fully and the te...

Embodiment 2

[0020] 1) First take dry peat (weathered coal) with a particle size of less than 0.4mm, then add peat to 2mol / L NaOH solution at a weight ratio of 1:4.2, heat up to 35°C, stir and heat for 2h, filter, and collect the filtrate. Then the remaining peat and 2mol / L NaOH solution are mixed in a weight ratio of 1: 4.2, heated up again, stirred and heated, filtered, and the process is repeated three times, and the filtrates combined three times are washed with H 2 SO 4 Adjust the pH value of the filtrate to 6.5, filter, concentrate and dry to obtain water-soluble humic acid solids after fully stirring;

[0021] 2) Secondly, the poultry feathers are washed with water, and then the washed feathers are mixed with Ca(OH) with a pH value of 13 2 The supernatant was mixed according to the weight ratio of 1:4 and then cooked. The temperature was controlled at 115°C for 12 hours. After the cooking was completed, NaOH was added to adjust the pH value to 13 for alkaline hydrolysis. Stir fully...

Embodiment 3

[0026] 1) First take dry peat (weathered coal) with a particle size of less than 0.4mm, then add the peat to a 1.5mol / L NaOH solution at a weight ratio of 1:5, heat up to 40°C, stir and heat for 3 hours, filter, and collect the filtrate , then mix the remaining peat and 1.5mol / L NaOH solution in a weight ratio of 1:5, heat up again, stir and heat, filter, repeat the process three times, combine the filtrate three times, and use H 2 SO 4 The pH value of the filtrate is adjusted to be 6, and after fully stirring, it is filtered, concentrated and dried to obtain a water-soluble humic acid solid;

[0027] 2) Next, the poultry feathers are washed with water, and then the washed feathers are mixed with Ca(OH) with a pH value of 12 2 The supernatant was mixed according to the weight ratio of 1:3.5 and then cooked. The temperature was controlled at 120°C for 10 hours. After cooking, NaOH was added to adjust the pH value to 12 for alkaline hydrolysis. Stir well, the temperature was co...

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Abstract

The invention discloses a method for preparing an organic / inorganic humate foliar fertilizer, which comprises the following steps: firstly, preparing humate serving as a first component by activating peat; then, preparing mixed solution of polypeptide, amino acid and intermediate products thereof from poultry feather by cleaning, degreasing, hydrolyzing, filtering to remove impurities and adjusting the pH value, and obtaining solution of amino acid with certain viscosity serving as a second component through moderate chemical crosslinking; acidifying boric sludge to form a boric magnesium fertilizer containing magnesium sulfate or magnesium nitrate and boric acid to be used as a third component; and finally, mixing the three components according to a certain proportion, and diluting the mixture with water to obtain the organic / inorganic humate foliar fertilizer. The method selects and uses the waste resources such as peat, poultry feather, boric sludge and the like to prepare the foliar fertilizer which is favorable for the growth of plants and the improvement of farm product quality; and because various wastes are adopted as the main raw materials, the method can have good socialbenefit and economic benefit in the aspect of environmental protection.

Description

technical field [0001] The invention relates to a synthesis method of foliage fertilizer, in particular to a preparation method of humic acid organic and inorganic foliage fertilizer. Background technique [0002] Humic acid (HA for short) is a high-molecular organic acid composed of aromatics and various functional groups. It has good physiological activity and functions such as absorption, complexation, and exchange. It widely exists in soil, lakes, rivers, oceans and peat (also known as peat), lignite, weathered coal. Humic acid can improve the stress resistance of plants. [0003] The nutritional contribution of amino acids to plants is not only to provide nitrogen sources, but also has an inestimable influence on the physiological metabolism of plants. Amino acids have three functions in plant growth: (1) supplementary sources of organic nitrogen nutrients; (2) chelating agents for metal ions. Amino acid has the function of complexing (chelating) metal ions, and it i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/00C05F11/02
Inventor 牛育华李仲谨郝明德余丽丽刘侠王健朱雷王培霖赵艳
Owner SHAANXI UNIV OF SCI & TECH
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