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Slow-release water-retention compound fertilizer composition

A composition and compound fertilizer technology, applied in the direction of fertilizer mixture, nitrogen fertilizer, phosphate fertilizer, etc., can solve the problems of flammability, irritation, and harmfulness to the body, and achieve the effect of high utilization rate, high water absorption rate, and good fertilizer efficiency

Inactive Publication Date: 2018-08-10
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

Method used

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  • Slow-release water-retention compound fertilizer composition
  • Slow-release water-retention compound fertilizer composition
  • Slow-release water-retention compound fertilizer composition

Examples

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Comparison scheme
Effect test

Embodiment 1

[0048] This embodiment relates to a slow-release water-retaining compound fertilizer composition and a preparation method thereof;

[0049] Weigh the following raw materials in parts by weight in advance:

[0050] 48 parts of compound organic matter;

[0051] 11 parts of waxy cornstarch;

[0052] 8 parts of phosphated starch;

[0053] 4 parts of degradable cross-linking agent;

[0054] 2 parts carrageenan;

[0055] 5 parts of 40 mesh shell powder;

[0056] 1 part of palm fiber with a length of 600 μm;

[0057] 3.5 parts of 40 mesh palygorskite powder;

[0058] 1.5 parts of compound blowing agent;

[0059] 1 part of compound coupling agent;

[0060] 0.3 parts of trace elements;

[0061] 0.2 parts of mixed strains;

[0062] The preparation of the above-mentioned part of raw materials is selected as shown in the following table 1:

[0063] Table 1

[0064]

[0065] (1) protein foaming agent: get the ox hoof horn powder slag of 3 parts, the corn bran bran of 4 parts, ...

Embodiment 2

[0072] This embodiment relates to a slow-release water-retaining compound fertilizer composition and a preparation method thereof;

[0073] Weigh the following raw materials in parts by weight in advance:

[0074] 50 parts of compound organic matter;

[0075] 12 parts waxy cornstarch;

[0076] 9 parts of phosphated starch;

[0077] 4.5 parts of degradable cross-linking agent;

[0078] Carrageenan 2.3 parts;

[0079] 5.5 parts of 45 mesh shell powder;

[0080] 1.2 parts of palm fiber with a length of 650 μm;

[0081] 4 parts of 45 mesh palygorskite powder;

[0082] 1.8 parts of compound blowing agent;

[0083] 1.2 parts of compound coupling agent;

[0084] 0.35 parts of trace elements;

[0085] 0.23 parts of mixed strains;

[0086] The preparation of above-mentioned part raw material is selected as shown in following table 2:

[0087] Table 2

[0088]

[0089]

[0090] (1) protein foaming agent: get the ox hoof horn powder slag of 3.5 parts, the corn bran bran...

Embodiment 3

[0097] This embodiment relates to a slow-release water-retaining compound fertilizer composition and a preparation method thereof;

[0098] Weigh the following raw materials in parts by weight in advance:

[0099] 52 parts of compound organic matter;

[0100] 13 parts of waxy cornstarch;

[0101] 10 parts of phosphated starch;

[0102] 5 parts of degradable cross-linking agent;

[0103] Carrageenan 2.5 parts;

[0104] 6 parts of 40-60 mesh shell powder;

[0105] 1.5 parts of palm fiber with a length of 700 μm;

[0106] 4.5 parts of 40-60 mesh palygorskite powder;

[0107] 2 parts of compound foaming agent;

[0108] 1.5 parts of compound coupling agent;

[0109] 0.4 parts of trace elements;

[0110] 0.25 parts of mixed strains;

[0111] The preparation of the above-mentioned part of raw materials is selected as shown in the following table 3:

[0112] table 3

[0113]

[0114] (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 slow-release water-retention compound fertilizer composition, and relates to the technical field of fertilizer. The slow-release water-retention compound fertilizer composition is prepared from compound organic matter, microelements, compound culture, degradable cross-linking agent, waxy corn starch, phosphoric acid esterified starch, carrageenan, shell powder of 40-60 mesh, palm fiber with the length of 600-800 micrometers, palygorskite powder of 40-60 mesh, compound foaming agent and compound coupling reagent. The slow-release fertilizer has high environment friendliness, water retention, slow release, applicability, fertilizer effect, soil improvement performance, prevention and control performance and yield increase, can better meet requirements of crops, further conform to the yearn for environment-friendly and multifunctional novel fertilizer by the market and has a good market prospect and competitiveness.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a slow-release water-retaining compound fertilizer composition. 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-term and stable...

Claims

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Application Information

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