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Efficient environment-friendly slow-release fertilizer and preparation method and application thereof

A slow-release fertilizer and environmental protection technology, applied in the direction of application, phosphate fertilizer, fertilization equipment, etc., can solve the problems of wasting manpower and material costs, failing to meet the demand well, increasing the cost of fertilization, etc., to increase production, improve fertilizer retention capacity, The effect of slowing down the evaporation of water

Pending Publication Date: 2020-08-11
SHANDONG XIFENGTIAN ECOLOGY FERTILIZER IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, N, P, K and other large elements are still the main ones, which cannot well meet the needs of seedlings for medium and trace elements, and need to be supplemented separately, which increases the cost of fertilization
[0008] Chinese patent CN101284747A utilizes the complementary advantages of fast-acting fertilizer and organic fertilizer to extend its fertilizer efficiency, but its fertilizer effect is still short, and generally still needs to be applied 1-2 times a year
[0011] Existing slow-release fertilizers have poor water retention capacity and are watered many times in dry seasons, which limits their use
In addition, in large plants or fast-growing plants, slow-release fertilizers need to be applied multiple times, wasting manpower and material costs

Method used

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  • Efficient environment-friendly slow-release fertilizer and preparation method and application thereof
  • Efficient environment-friendly slow-release fertilizer and preparation method and application thereof
  • Efficient environment-friendly slow-release fertilizer and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A high-efficiency and environmentally friendly slow-release fertilizer formula, containing the following ingredients by weight kg:

[0039] Fertilizer granular layer, calculated by weight ratio, consists of 20kg of urea, 35kg of humic acid, 15kg of potassium phosphate, 10kg of molybdenum sulfate, 5kg of ammonium bicarbonate, 8kg of magnesium sulfate, 5kg of trace elements, and 10kg of synergist.

[0040] Trace elements consist of zinc sulfate heptahydrate 2kg, ferrous sulfate 5kg, calcium chloride kg, boric acid 4kg, manganese oxide 3kg, ammonium chloride 5kg, sodium molybdate 6kg,

[0041] The synergist consists of 5kg of amidinothiourea, 8kg of N-butylphosphorothioate, and 1kg of sodium hexametaphosphate.

[0042] The coating layer is 10kg of gelatin, 1kg of polyethylene glycol, 20kg of water, and 10kg of oxidized sodium alginate.

[0043] Calculated by weight ratio, in the composite protective layer, there are 2kg of Azotobacter rufosa, 3kg of Bacillus subtilis, and...

Embodiment 2

[0049] A high-efficiency and environmentally friendly slow-release fertilizer formula, containing the following ingredients by weight kg:

[0050] Fertilizer granular layer, calculated by weight ratio, consists of 40kg of urea, 65kg of humic acid, 30kg of potassium phosphate, 20kg of molybdenum sulfate, 10kg of ammonium bicarbonate, 15kg of magnesium sulfate, 10kg of trace elements, and 20kg of synergist.

[0051] Trace elements consist of 10kg of zinc sulfate heptahydrate, 10kg of ferrous sulfate, 10kg of calcium chloride, 16kg of boric acid, 10kg of manganese oxide, 10kg of ammonium chloride, and 12kg of sodium molybdate.

[0052] The synergist consists of 10kg of amidinothiourea, 14kg of N-butylphosphorothioate, and 1kg of sodium hexametaphosphate.

[0053] The coating layer is 20kg of gelatin, 5kg of polyethylene glycol, 40kg of water, and 25kg of oxidized sodium alginate.

[0054] Calculated by weight ratio, in the composite protective layer, there are 10kg of Azotobacte...

Embodiment 3

[0060] A high-efficiency and environmentally friendly slow-release fertilizer formula, containing the following ingredients by weight kg:

[0061] Fertilizer granular layer urea 35kg, humic acid 50kg, potassium phosphate 22.5kg, molybdenum sulfate 15kg, ammonium bicarbonate 7.5kg, magnesium sulfate 11.5kg, trace elements 7.5kg, synergist 15kg.

[0062] The coating layer is 15kg of gelatin, 3kg of polyethylene glycol, 30kg of water, and 17.5kg of oxidized sodium alginate.

[0063] Composite protective layer: 6 kg of nitrogen-fixing bacteria torus, 5.5 kg of bacillus subtilis, and 7.5 kg of sp. mobara.

[0064] Trace elements consist of 6kg of zinc sulfate heptahydrate, 7.5kg of ferrous sulfate, 7.5kg of calcium chloride, 10kg of boric acid, 6.5kg of manganese oxide, 7.5kg of ammonium chloride, and 9kg of sodium molybdate.

[0065] The synergist consists of 7.5kg of amidinothiourea, 11kg of N-butylthiophosphoric triamide, and 1kg of sodium hexametaphosphate.

[0066] (1) Heat ...

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Abstract

The invention belongs to the technical field of fertilizer production, in particular to an efficient environment-friendly slow-release fertilizer and a preparation method and application thereof. Thefertilizer comprises a fertilizer particle layer, a coating layer and a composite protective layer, the fertilizer particle layer is composed of urea, humic acid, potassium phosphate, molybdenum sulfate, ammonium bicarbonate, magnesium sulfate, trace elements and a synergist. The coating layer is composed of gelatin, polyethylene glycol, water and oxidized sodium alginate. The composite protectivelayer is composed of azotobacter chroococcum, bacillus subtilis and protocene streptomyces. The fertilizer can significantly improve the water absorption capacity of soil and has good water retentionand moisture retention capacities and can slow down evaporation of water in the soil, significantly improve the granular structure of the soil, loosen the soil and improve the fertilizer retention capacity of the soil.

Description

technical field [0001] The invention belongs to the technical field of fertilizer production, and in particular relates to a long-acting fertilizer, in particular to a high-efficiency and environment-friendly slow-release fertilizer and its preparation method and application. Background technique [0002] It is a universally recognized truth that chemical fertilizers occupy the most important position in agricultural production, not one of them. [0003] Fertilizer is the largest material investment in agricultural production, accounting for about 50% of its total productive expenditure. At present, the utilization rate of chemical fertilizers in foreign countries is 0.5% to 0.55%, and the utilization rate of chemical fertilizers in my country is only about 0.35%. If the utilization rate of chemical fertilizers is too low, it will cause excessive fertilization, and the physical properties of the soil will continue to deteriorate, which will affect the yield and quality of cr...

Claims

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Application Information

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IPC IPC(8): C05G5/30C05G5/12C05G3/40C05G3/90C05G3/80C05G3/00A01G17/00A01G22/05A01G22/25
CPCC05G5/30C05G5/12C05G3/40C05G3/90C05G3/80C05G3/00C05B7/00A01G17/005A01G22/05A01G22/25
Inventor 石欣
Owner SHANDONG XIFENGTIAN ECOLOGY FERTILIZER IND