Method for preparing yield-increasing improved-type slow-release fertilizer

A slow-release fertilizer and improved technology, applied in nitrogen fertilizer, magnesium fertilizer, phosphate fertilizer, etc., can solve the problems of flammability, irritation, and health hazards, and achieve the effect of high utilization rate, high water absorption rate, and good fertilizer efficiency.

Inactive Publication Date: 2018-09-04
合肥慧明瀚生态农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] The patent application with publication number CN107698326A discloses a slow-release fertilizer and its preparation method, including the following raw materials in parts by weight: 20-30 parts of compound fertilizer, 5-10 parts of polyvinyl alcohol, 1-5 parts of polyacrylic acid, polyacrylamide 3-8 parts, 5-10 parts of inorganic minerals, 0.3-0.8 parts of emulsifier, 0.1-0.5 parts of surfactant, 0.3-0.7 parts of crosslinking agent, 0.3-0.5 parts of coupling agent; inorganic minerals are attapulgite, Diatomaceous earth and bentonite are composed at a mass ratio of 1:1.3:2.1. This kind of slow-release fertilizer has a good slow-release effect, and the slow-release time can last up to three months, but its composition contains polyvinyl alcohol, which is widely used in the world. Included in the list of carcinogens by the International Agency for Research on Cancer of the World Health Organization, it is flammable and irritating, and it is harmful to the body after absorption

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  • Method for preparing yield-increasing improved-type slow-release fertilizer
  • Method for preparing yield-increasing improved-type slow-release fertilizer
  • Method for preparing yield-increasing improved-type slow-release fertilizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] This embodiment relates to a production-increasing improved slow-release fertilizer and its preparation method;

[0052] Weigh the following raw materials in parts by weight in advance:

[0053] 48 parts of compound organic matter;

[0054] 11 parts of waxy cornstarch;

[0055] 8 parts of phosphated starch;

[0056] 4 parts of degradable cross-linking agent;

[0057] 2 parts carrageenan;

[0058] 5 parts of 40 mesh shell powder;

[0059] 1 part of palm fiber with a length of 600 μm;

[0060] 3.5 parts of 40 mesh palygorskite powder;

[0061] 1.5 parts of compound blowing agent;

[0062] 1 part of compound coupling agent;

[0063] 0.3 parts of trace elements;

[0064] 0.2 parts of mixed strains;

[0065] The preparation of the above-mentioned part of raw materials is selected as shown in the following table 1:

[0066] Table 1

[0067]

[0068] (1) protein foaming agent: get the ox hoof horn powder slag of 3 parts, the corn bran bran of 4 parts, the concentr...

Embodiment 2

[0075] This embodiment relates to a production-increasing improved slow-release fertilizer and its preparation method;

[0076] Weigh the following raw materials in parts by weight in advance:

[0077] 50 parts of compound organic matter;

[0078] 12 parts waxy cornstarch;

[0079] 9 parts of phosphated starch;

[0080] 4.5 parts of degradable cross-linking agent;

[0081] Carrageenan 2.3 parts;

[0082] 5.5 parts of 45 mesh shell powder;

[0083] 1.2 parts of palm fiber with a length of 650 μm;

[0084] 4 parts of 45 mesh palygorskite powder;

[0085] 1.8 parts of compound blowing agent;

[0086] 1.2 parts of compound coupling agent;

[0087] 0.35 parts of trace elements;

[0088] 0.23 parts of mixed strains;

[0089] The preparation of above-mentioned part raw material is selected as shown in following table 2:

[0090] Table 2

[0091]

[0092] (1) protein foaming agent: get the ox hoof horn powder slag of 3.5 parts, the corn bran bran of 4.5 parts, the conce...

Embodiment 3

[0099] This embodiment relates to a production-increasing improved slow-release fertilizer and its preparation method;

[0100] Weigh the following raw materials in parts by weight in advance:

[0101] 52 parts of compound organic matter;

[0102] 13 parts of waxy cornstarch;

[0103] 10 parts of phosphated starch;

[0104] 5 parts of degradable cross-linking agent;

[0105] Carrageenan 2.5 parts;

[0106] 6 parts of 40-60 mesh shell powder;

[0107] 1.5 parts of palm fiber with a length of 700 μm;

[0108] 4.5 parts of 40-60 mesh palygorskite powder;

[0109] 2 parts of compound foaming agent;

[0110] 1.5 parts of compound coupling agent;

[0111] 0.4 parts of trace elements;

[0112] 0.25 parts of mixed strains;

[0113] The preparation of the above-mentioned part of raw materials is selected as shown in the following table 3:

[0114] table 3

[0115]

[0116]

[0117] (1) protein foaming agent: get the ox hoof horn powder slag of 4 parts, the corn bran b...

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Abstract

The invention discloses a method for preparing a yield-increasing improved-type slow-release fertilizer and relates to the technical field of fertilizers. The method comprises the following steps: stirring and dissolving trace elements into a proper amount of water, heating, adding wax maize starch, stirring for pasting, uniformly mixing with compounded organic matters under a stirring condition,and keeping the temperature so as to obtain a mixed material A; putting phosphate esterification starch into the mixed material A while stirring, stirring, keeping the temperature, adding a compoundedfoaming agent and a mixing coupling agent, stirring sufficiently, sequentially adding a palm fiber, shell powder, palygorskite powder and a pelvetia silquosa adhesive, uniformly stirring, and keepingthe temperature so as to obtain a mixed material B; sequentially putting compounded bacterial and a degradable cross-linking agent into the mixed material B, uniformly mixing, and pelletizing. The slow-release fertilizer prepared according to the method has relatively good environment protection, water retention, slow release, applicability, fertilizer efficiency, soil improvement, disease prevention and yield increase, requirements of crops can be relatively well met, the requirements of the market on environmental-friendly and multifunctional novel fertilizers can be met, and the fertilizerhas good market prospects and competitiveness.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a preparation method of an improved yield-increasing slow-release fertilizer. Background technique [0002] Slow-release fertilizer (SRFS), also known as long-term fertilizer, is a new type of fertilizer that slows down the release rate of nutrients in fertilizers through chemical and biological factors. Generally, the solubility in water is very small. After being applied to the soil, under the action of chemical and biological factors, the fertilizer will gradually decompose, and the fertilizer effect will be released slowly to meet the needs of crops for nutrients throughout the growth period; [0003] Compared with quick-acting fertilizers, slow-release fertilizers have the following advantages: [0004] 1. The solubility in water is small, and the nutrients are released slowly in the soil, which reduces the loss of nutrients. [0005] 2. The fertilizer effect is long-t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04C05G3/02C05G3/00C05G3/60C05G3/80
CPCC05B7/00C05G3/00C05G3/60C05G3/80C05F11/00C05F11/08C05B15/00C05C3/00C05C5/04C05D5/00C05D9/02C05F1/005C05F3/00C05F5/002
Inventor 徐仙峰
Owner 合肥慧明瀚生态农业科技有限公司
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