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Environment-friendly slow-release compound fertilizer for crops

A compound fertilizer and environmental protection technology, applied in animal carcass fertilizers, fertilizers made from biological waste, organic fertilizers, etc., can solve problems such as harmfulness, flammability and irritation, and achieve high utilization rate, high water absorption rate and slow fertilizer effect. good release effect

Inactive Publication Date: 2018-10-16
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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  • Environment-friendly slow-release compound fertilizer for crops
  • Environment-friendly slow-release compound fertilizer for crops
  • Environment-friendly slow-release compound fertilizer for crops

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] This embodiment relates to a crop environmental protection slow-release compound fertilizer and its preparation method;

[0053] Weigh the following raw materials in parts by weight in advance:

[0054] 48 parts of compound organic matter;

[0055] 11 parts of waxy cornstarch;

[0056] 8 parts of phosphated starch;

[0057] 4 parts of degradable cross-linking agent;

[0058] 2 parts carrageenan;

[0059] 5 parts of 40 mesh shell powder;

[0060] 1 part of palm fiber with a length of 600 μm;

[0061] 3.5 parts of 40 mesh palygorskite powder;

[0062] 1.5 parts of compound blowing agent;

[0063] 1 part of compound coupling agent;

[0064] 0.3 parts of trace elements;

[0065] 0.2 parts of mixed strains;

[0066] The preparation of the above-mentioned part of raw materials is selected as shown in the following table 1:

[0067] Table 1

[0068]

[0069] (1) protein foaming agent: get the ox hoof horn powder slag of 3 parts, the corn bran bran of 4 parts, the ...

Embodiment 2

[0076] This embodiment relates to a crop environmental protection slow-release compound fertilizer and its preparation method;

[0077] Weigh the following raw materials in parts by weight in advance:

[0078] 50 parts of compound organic matter;

[0079] 12 parts waxy cornstarch;

[0080] 9 parts of phosphated starch;

[0081] 4.5 parts of degradable cross-linking agent;

[0082] Carrageenan 2.3 parts;

[0083] 5.5 parts of 45 mesh shell powder;

[0084] 1.2 parts of palm fiber with a length of 650 μm;

[0085] 4 parts of 45 mesh palygorskite powder;

[0086] 1.8 parts of compound blowing agent;

[0087] 1.2 parts of compound coupling agent;

[0088] 0.35 parts of trace elements;

[0089] 0.23 parts of mixed strains;

[0090] The preparation of above-mentioned part raw material is selected as shown in following table 2:

[0091] Table 2

[0092]

[0093] (1) protein foaming agent: get the ox hoof horn powder slag of 3.5 parts, the corn bran bran of 4.5 parts, t...

Embodiment 3

[0100] This embodiment relates to a crop environmental protection slow-release compound fertilizer and its preparation method;

[0101] Weigh the following raw materials in parts by weight in advance:

[0102] 52 parts of compound organic matter;

[0103] 13 parts of waxy cornstarch;

[0104] 10 parts of phosphated starch;

[0105] 5 parts of degradable cross-linking agent;

[0106] Carrageenan 2.5 parts;

[0107] 6 parts of 40-60 mesh shell powder;

[0108] 1.5 parts of palm fiber with a length of 700 μm;

[0109] 4.5 parts of 40-60 mesh palygorskite powder;

[0110] 2 parts of compound foaming agent;

[0111] 1.5 parts of compound coupling agent;

[0112] 0.4 parts of trace elements;

[0113] 0.25 parts of mixed strains;

[0114] The preparation of the above-mentioned part of raw materials is selected as shown in the following table 3:

[0115] table 3

[0116]

[0117]

[0118] (1) protein foaming agent: get the ox hoof horn powder slag of 4 parts, the cor...

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Abstract

The invention discloses an environment-friendly slow-release compound fertilizer for crops, and relates to the technical field of fertilizers. The environment-friendly slow-release compound fertilizeris prepared from the following raw materials of compound-mixed organic matter, trace elements, compound-mixed bacteria strains, a biodegradable crosslinking agent, waxy corn starch, phosphate esterification starch, carrageenin, shell powder with size of 50 meshes, palm fiber with length of 700mum, palygorskite powder with size of 50 meshes, a compound-mixed foaming agent, and a compound-mixed coupling agent. The environment-friendly slow-release compound fertilizer has the advantages that the better environment-friendly property, water retention property, slow-release property, applicability,fertility, soil improvement property, preventing and control property and output increase property are realized; the requirements of the crops can be better met; the expectation of market on green, environment-friendly and multifunctional novel fertilizers is met, and the market prospect and competitiveness are good.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to an environmentally friendly slow-release compound fertilizer for crops. 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 an...

Claims

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Application Information

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