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Environment-friendly soil-improving liquid fertilizer and preparing method thereof

An environmentally friendly, liquid technology, applied in fertilization devices, fertilizer mixtures, applications, etc., can solve undisclosed problems, and achieve the effects of promoting crop growth, improving crop respiration and photosynthesis, and strengthening physiological activity.

Active Publication Date: 2013-02-13
INST OF AGRI RESOURCES & ENVIRONMENT SHANDONG ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent document CN102140046A relates to a compound fertilizer granulator and its preparation method, and CN101985409A to an adhesive controlled-release fertilizer and its preparation method. In these patent documents, compound fertilizers are produced by adding 0-15% lignosulfonate Or controlled-release fertilizers. On the whole, there is no publicity on the preparation and production of lignosulfonate in multifunctional liquid fertilizers.

Method used

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  • Environment-friendly soil-improving liquid fertilizer and preparing method thereof
  • Environment-friendly soil-improving liquid fertilizer and preparing method thereof
  • Environment-friendly soil-improving liquid fertilizer and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Embodiment 1: environment-friendly soil improvement liquid fertilizer, raw material components are as follows:

[0047] 25 parts of lignosulfonate, 10 parts of potassium humate, 10 parts of urea, 3 parts of zinc sulfate, 2 parts of sodium alginate, 70 parts of water.

[0048] The preparation method is as follows:

[0049] (1) Dissolve 25 parts of lignosulfonate and 10 parts of potassium humate in 70 parts of water, stir well and dissolve;

[0050] (2) Regulating the solution of step (1) with a concentration of 50wt% nitric acid to a pH of 7;

[0051] (3) Add 10 parts of urea into the solution prepared in step (2), and stir to dissolve;

[0052] (4) Heat the solution in step (3) to 60°C, add 3 parts of zinc sulfate as a trace element, and stir until dissolved;

[0053] (5) After the solution prepared in step (4) is cooled, add 2 parts of sodium alginate and dissolve to obtain the product.

[0054] The prepared environment-friendly liquid fertilizer for soil improvement...

Embodiment 2

[0055] Embodiment 2: environment-friendly soil improvement liquid fertilizer, raw material components are as follows:

[0056] 15 parts of lignosulfonate, 15 parts of potassium humate, 15 parts of urea, 2 parts of manganese sulfate, 3 parts of sodium alginate, 80 parts of water.

[0057] The preparation method is as follows:

[0058] (1) Dissolve 15 parts of lignosulfonate and 15 parts of potassium humate in 80 parts of water, stir well and dissolve;

[0059] (2) Regulating the solution of step (1) with a concentration of 50wt% nitric acid to a pH of 7;

[0060] (3) Add 15 parts of urea to the solution prepared in step (2), stir and dissolve;

[0061] (4) Heat the solution in step (3) to 60°C, add 2 parts of trace element manganese sulfate, and stir until dissolved;

[0062] (5) After the solution prepared in step (4) is cooled, add 3 parts of sodium alginate and dissolve to obtain the product.

[0063] The prepared environment-friendly liquid fertilizer for soil improveme...

experiment example 1

[0064] Experimental example 1: Effect experiment of environment-friendly soil improvement liquid fertilizer on potatoes

[0065] 1. Test site and soil properties

[0066] Test site: Taoyuan Town, Feicheng City, Shandong Province.

[0067] Soil of the test site: the plot is light loam, the basic physical and chemical properties of the soil are: organic matter (1.72%), alkaline nitrogen (23.90mg·kg -1 ), available phosphorus (111.00mg·kg -1 ), available potassium (49.58mg·kg -1 ), pH 6.49.

[0068] 2. Test time: from March 3, 2012 to August 10, 2012.

[0069] 3. Field experiment design:

[0070] Three treatments were set up in the experiment, namely: (1) control: no fertilization; (2) customary fertilization (obtained through field investigation): according to the amount of fertilizer applied by local farmers and the method of base topdressing (the base fertilizer is 20-12-22 compound fertilizer 150kg / mu, topdressing urea 15kg / mu in group tree stage); (3) Embodiment 1 envi...

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Abstract

The invention relates to environment-friendly soil-improving liquid fertilizer and a preparing method thereof. The environment-friendly soil-improving liquid fertilizer is prepared by the following raw materials in part by weight: 15 to 25 parts of lignosulfonate, 10 to 20 parts of potassium humate, 10 to 20 parts of urea, 2 to 5 parts of microelements, 1 to 5 parts of sodium alginate and 70 to 100 parts of water, wherein lignosulfonate and potassium humate are dissolved in water and sufficiently and uniformly mixed and dissolved; 40 to 60wt% of nitric acid is used to adjust the pH value of the solution to be from 6.0 to 7.5; urea is added into the solution to be mixed and dissolved; the solution is heated to 50 to 70 degrees C and then added with the microelements to be mixed and dissolved; and sodium alginate is added into the cooled solution to be dissolved, so as to obtain the environment-friendly soil-improving liquid fertilizer. The environment-friendly soil-improving liquid fertilizer integrates the functions of growth promoting, stress resisting and active soil improving, comprehensively utilizes the waste, and finally realizes the comprehensive development of circular economy.

Description

technical field [0001] The invention relates to an environment-friendly soil improving liquid fertilizer and a preparation method thereof, belonging to the field of liquid fertilizer production. Background technique [0002] Lignosulfonate is generally concentrated in the production of paper pulp mills, and its basic components are benzyl propane derivatives. The sulfonic acid group determines its good water solubility. According to the determination of its intrinsic viscosity and electron microscope observation structure, lignosulfonate molecules have a spherical three-dimensional network structure, and at the same time have C 3 ~C 6 Hydrophobic skeleton and hydrophilic group, such as sulfonic acid group, carboxyl group, etc., its unique structural characteristics determine that lignosulfonate has the functions of adsorption, dispersion, chelation, bonding, etc., and has good reactivity, so in It has high utilization value in agriculture. [0003] According to the estima...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/04C05G3/80
Inventor 董亮张玉凤孙泽强王学君郑东峰刘兆辉田叶杨鹏
Owner INST OF AGRI RESOURCES & ENVIRONMENT SHANDONG ACADEMY OF AGRI SCI
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