Chitin-containing slow-release fertilizer and preparation method thereof

A slow-release fertilizer and chitin technology, applied in the direction of organic fertilizers, inorganic fertilizers, fertilizer mixtures, etc., can solve the problems of application and development limitations, improve physical and chemical properties and microbial flora, promote synergy, and enhance fertilizer efficiency Effect

Inactive Publication Date: 2015-05-06
林康艺
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although coated fertilizers have incomparable advantages over ordinary fer

Method used

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  • Chitin-containing slow-release fertilizer and preparation method thereof
  • Chitin-containing slow-release fertilizer and preparation method thereof

Examples

Experimental program
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Example Embodiment

[0022] Example 1

[0023] The chitin-containing slow-release fertilizer described in this embodiment contains the following components in parts by weight: 36 parts of chitin, 15 parts of urea, 22 parts of diammonium phosphate, 6 parts of boric acid, 12.5 parts of humic acid, zinc sulfate 2.5 parts, magnesium sulfate 2 parts, ferrous sulfate 2.5 parts, organic matter 17 parts, modified attapulgite 39 parts.

[0024] The concrete preparation method of described slow-release fertilizer comprises the steps:

[0025] S1. Take each raw material by weight parts of the raw materials, grind the urea, diammonium phosphate, boric acid, zinc sulfate, magnesium sulfate, ferrous sulfate, mix uniformly, and granulate, as the core particle of the compound fertilizer, the particle size About 3mm;

[0026] S2. Mix chitin, organic matter, and humic acid evenly, wrap and dry the core particles of the compound fertilizer obtained in S1, and the thickness of the wrapping is about 85g / m 2 ;

[...

Example Embodiment

[0028] Example 2

[0029] The chitin-containing slow-release fertilizer described in this embodiment contains the following components in parts by weight: 10 parts of chitin, 15 parts of ammonium nitrate, 15 parts of monoammonium phosphate, 6 parts of sodium octaborate tetrahydrate, humic acid 15.5 parts, 2.5 parts of zinc sulfate, 2 parts of magnesium sulfate, 2.5 parts of ferrous sulfate, 17 parts of organic matter, 39 parts of modified attapulgite.

[0030] The concrete preparation method of described slow-release fertilizer comprises the steps:

[0031] S1. Weigh each raw material according to the parts by weight of the raw materials, grind the ammonium nitrate, monoammonium phosphate, sodium octaborate tetrahydrate, zinc sulfate, magnesium sulfate, ferrous sulfate, mix uniformly, and granulate as a compound fertilizer Core particles, particle size 3.4mm;

[0032] S2. Mix chitin, organic matter, and humic acid evenly, wrap and dry the core particles of the compound fer...

Example Embodiment

[0034] Example 3

[0035] The chitin-containing slow-release fertilizer described in the present embodiment contains the following components in parts by weight: 45 parts of chitin, 15 parts of ammonium sulfate, 12 parts of monoammonium phosphate and diammonium phosphate, sodium octaborate tetrahydrate and borax 8 parts, humic acid 5 parts, zinc sulfate 1 part, magnesium sulfate 3 parts, ferrous sulfate 1 part, organic matter 12 parts, bentonite 30 parts.

[0036] The concrete preparation method of described slow-release fertilizer comprises the steps:

[0037] S1. Take each raw material by weight parts of the raw materials, grind the ammonium sulfate, monoammonium phosphate and diammonium phosphate, sodium octaborate tetrahydrate and borax, zinc sulfate, magnesium sulfate, ferrous sulfate, mix uniformly, Granulation, as the core granules of compound fertilizer, the particle size is about 2.8mm;

[0038] S2. Mix chitin, organic matter, and humic acid evenly, wrap and dry t...

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Abstract

The invention concretely discloses a chitin-containing slow-release fertilizer and a preparation method thereof. The fertilizer comprises the following compositions in parts by weight: 10-45 parts of chitin, 5-15 parts of nitrogen fertilizer, 12-22 parts of phosphorus fertilizer, 3-9 parts of boron fertilizer, 5-16 parts of humic acid, 0.5-2.5 parts of zinc sulfate, 1-3 parts of magnesium sulfate, 0.5-2.5 parts of ferrous sulfate, 11-17 parts of organics, and 30-44 parts of modified attapulgite or/and bentonite. Through reasonable combination of chitin, organics, humic acid, macroelements and other nutrients, the fertilizer satisfies crop growth demands, also is capable of effectively improving soil physical and chemical properties and microflora, gives play to slow release effect on nitrogen, phosphorus and boron fertilizers, and helps to prevent fertilizer loss, substantially enhance fertilizer efficiency and improve fertilizer utilization rate.

Description

technical field [0001] The invention relates to a fertilizer, in particular to a chitin-containing slow-release fertilizer and a preparation method thereof. Background technique [0002] Fertilizers are widely used in the cultivation of food and economic crops in agriculture, forestry and other fields. The utilization rate of existing organic fertilizers or compound fertilizers is generally low, 30-35% for nitrogen, 10-20% for phosphorus, and 30-35% for potassium. In recent years, due to the frequent use of chemical fertilizers and pesticides, the distribution of microorganisms in the soil has been disturbed, and the useful bacteria have become less and less, resulting in the occurrence of diseases and insect pests and the deterioration of the natural environment. Simultaneously, because a large amount of application of chemical fertilizer, pesticide also produces serious harm to human body. In addition, the excessive application of chemical fertilizers not only inhibits t...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/04C05G3/80
CPCC05D5/00C05G3/80C05D9/02C05F11/00C05F11/02
Inventor 林康艺
Owner 林康艺
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