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Yellow humic acid foliage fertilizer with straw pulping black liquor as raw material by ammonium sulfite process and preparation thereof

A technology of grass pulp black liquor and foliar fertilizer, applied in organic fertilizers, fertilization devices, fertilizer mixtures, etc., can solve the problems of low active ingredients, high moisture content of fertilizers, and high transportation costs

Active Publication Date: 2011-06-15
SHANDONG TRALIN PAPER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, direct application of ammonium grass pulp black liquor will produce some reducing substances that are harmful to crops when used improperly; at the same time, the fertilizer has high moisture content, low active ingredients, and high transportation costs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] The Baume degree of ammonium method grass pulp black liquor is 2, the solid content = 4%, and the pH value is 7; add 0.1g of ferrous sulfate and 20g of zinc sulfate per 1000ml to the imonium method of straw pulp black liquor; obtain fulvic acid The foliar fertilizer has a pH of 7 and a weight percentage of fulvic acid of 1%, and is suitable for field crops.

Embodiment 2

[0061] The Baume degree of ammonium method grass pulp black liquor is 9, the solid content = 15%, and the pH value is 10; add 15g boric acid and 0.1g zinc chloride per 1000ml to the imonium method straw pulp black liquor to obtain fulvic acid leaf The flour fertilizer has a pH of 10 and a weight percent of fulvic acid of 7%, which is suitable for vegetables.

Embodiment 3

[0063] The ammonium method grass pulp black liquor has a Baume degree of 5, solid content = 9%, and a pH value of 8; it is evaporated and concentrated to a solid content of 15.1%, and the Baume degree is 9; the concentrated straw pulp black liquor is obtained, and after concentration Add 0.1g borax, 15g ferrous sulfate and 20g zinc sulfate in every 1000ml of straw pulp black liquor; To obtain fulvic acid foliar fertilizer, pH is 7; The weight percent of fulvic acid is 8%, is applicable to fruit trees.

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Abstract

The invention relates to a fulvic acid foliage fertilizer prepared from ammonium sulfite straw pulp black liquor and a preparation method thereof. The fulvic acid foliage fertilizer is mainly prepared by adding a soluble microelement fertilizer into the ammonium sulfite straw pulp black liquor. The fulvic acid foliage fertilizer sprayed on leaf surfaces can improve the crop quality, enhance the crop resistability, promote the earlier ripeness of the crops, and improve the yield of the crops. The fulvic acid foliage fertilizer is a highly effective organic fertilizer suitable for field crops, vegetables and fruit trees.

Description

technical field [0001] The invention provides a fulvic acid foliar fertilizer with ammonium method straw pulp black liquor as raw material and a preparation method thereof, belonging to the field of straw pulp black liquor treatment. Background technique [0002] More than 80% of the raw materials of my country's papermaking industry are grass fibers. There are two main types of grass fiber papermaking, alkaline pulping and sulfite pulping, and the sulfite method is mainly based on the ammonium method. Ammonium pulping is to use ammonium sulfite to react with lignin in plant fiber raw materials to generate soluble lignosulfonate and dissolve it to achieve the purpose of separating fibers. [0003] A large amount of black liquor is produced by the ammonium pulping method. In addition to ammonium lignosulfonate, the composition of the black liquor also contains ammonium nitrogen, sugar and elements such as K, P, Fe, Mg, Mn, Zn and B, and other organic matter. . Its CODcr is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G1/00C05F11/02C05F7/02C05D9/02
Inventor 李洪法宋明信杨吉慧郭良进陈学涛
Owner SHANDONG TRALIN PAPER
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