Special humic acid chelated slow-release fertilizer for corn and preparation method of slow-release fertilizer

A corn-specific, slow-release fertilizer technology, applied in fertilizer mixtures, applications, fertilization devices, etc., can solve problems such as chronic poisoning and damage to human health, and achieve the effect of promoting fertilizer efficiency, improving soil, and reducing energy consumption

Inactive Publication Date: 2016-01-27
天津芦阳肥业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the heavy metals in the soil cannot be effectively treated, they will be absorbed by crops and accumulate in the body, and the harvested products will be chronically poisoned after being eaten, which will seriously damage human health.

Method used

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  • Special humic acid chelated slow-release fertilizer for corn and preparation method of slow-release fertilizer

Examples

Experimental program
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Effect test

Embodiment 1

[0031] A special humic acid chelated slow-release fertilizer for corn, including raw materials of the following weights: 90 kg of humic acid; 485 kg of urea; 155 kg of monoammonium phosphate; 100 kg of potassium chloride; 50 kg of liquid ammonia; 20 kg of zinc sulfate; borax 10 kg; 40 kg of liquid sodium silicate; 50 kg of concentrated sulfuric acid.

[0032] The flow chart of the preparation method of the special humic acid chelated slow-release fertilizer for corn in this embodiment is as follows: figure 1 Shown.

[0033] A preparation method of the above-mentioned special humic acid chelated slow-release fertilizer for corn includes the following steps:

[0034] 1) Combine 90 kg of humic acid (mass percentage, the same below, containing 65% organic matter), 20 kg of zinc sulfate (containing sulfur and zinc), 50 kg of concentrated sulfuric acid (containing sulfur) with a mass concentration of 98%, and water, Add it to a sealed reaction tank, heat and stir for 15 minutes, and prep...

Embodiment 2 5-10-10

[0039] Example 2 25-10-10 product

[0040] A special humic acid chelated slow-release fertilizer for corn, including raw materials of the following weights: 80 kg of humic acid; 405 kg of urea; 190 kg of monoammonium phosphate; 165 kg of potassium chloride; 50 kg of liquid ammonia; 20 kg of zinc sulfate; borax 10 kg; 40 kg of liquid sodium silicate; 40 kg of concentrated sulfuric acid.

[0041] The flow chart of the preparation method of the special humic acid chelated slow-release fertilizer for corn in this embodiment is as follows: figure 1 Shown.

[0042] A preparation method of the above-mentioned special humic acid chelated slow-release fertilizer for corn includes the following steps:

[0043] 1) 80 kg of humic acid (mass percentage, the same below, containing 65% organic matter), 20 kg of zinc sulfate (containing sulfur and zinc), 40 kg of concentrated sulfuric acid (containing sulfur) with a mass concentration of 98%, borax ( (Containing boron) 10 kilograms and water, add t...

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Abstract

The invention provides a special humic acid chelated slow-release fertilizer for corn and a preparation method of the slow-release fertilizer. The slow-release fertilizer comprises the following raw materials in parts by weight: 7-11 parts of humic acid, 36-52 parts of urea, 13-22 parts of monoammonium phosphate, 8-20 parts of potassium chloride, 4-7 parts of liquid ammonia, 1.5-3.5 parts of zinc sulfate, 0.5-1.5 parts of borax, 3.5-6.5 parts of liquid sodium silicate and 3.5-5.5 parts of concentrated sulfuric acid. According to the slow-release fertilizer, a slow-release function can be obtained for coating fertilizer grains through liquid sodium silicate; a demand of a whole growth period of the corn can be ensured by once fertilizing; a nutrient ratio, rich medium trace elements and organic matters are more suitable for a growth demand of the corn; and the slow-release fertilizer has effects of promoting synergism, improving and restoring soil, increasing the crop yield and improving the crop quality.

Description

Technical field [0001] The invention belongs to the technical field of slow-release fertilizers, and in particular relates to a special humic acid chelated slow-release fertilizer for corn and a preparation method thereof. Background technique [0002] "The crops and flowers are all dependent on fertilizer." For many years, the widespread use of chemical fertilizers in my country's agricultural production has made great contributions to agricultural development, farmers' income increase and rural prosperity. However, the extensive use of chemical fertilizers for a long time has also resulted in excessive soil salt content, excessive harmful ion concentration, poor structure, easy compaction, imbalanced soil fertility, reduced fertility, and restricted crop growth and development. According to data, soil pollution in our country is becoming more and more serious, and saline-alkaline soil is growing rapidly. Improving the soil and protecting the ecological environment have attract...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/02C05G3/08C05G3/60C05G3/90
Inventor 李云利
Owner 天津芦阳肥业股份有限公司
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