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Environment-friendly carbon-based slow-release fertilizer and preparation method thereof

An environmentally friendly, slow-release fertilizer technology, applied in organic fertilizers, fertilization devices, excretion of fertilizers, etc., can solve the problems of non-renewable raw materials, single function, negative impact on soil quality, etc. the effect

Inactive Publication Date: 2016-04-06
ACADEMY OF PLANNING & DESIGNING OF THE MINIST OF AGRI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem is that the raw material is not renewable and has a single effect. After being applied to the soil, it will exist stably for a long time, and excessive accumulation will also have a negative impact on soil quality.

Method used

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  • Environment-friendly carbon-based slow-release fertilizer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1: Preparation of environment-friendly carbon-based slow-release fertilizer

[0030] 1) Corn stalk charcoal (mass moisture content 15%), with a total nutrient content of 6.3%, is crushed and passed through a 40-mesh sieve.

[0031] 2) The organic fertilizer is selected to use pig manure as the main raw material, and the organic fertilizer obtained through high-temperature aerobic fermentation has a total nutrient content of 7.5%, and other quality indicators meet the requirements of the NY525-2012 standard; the inorganic fertilizer selects nitrogen fertilizer, potash fertilizer and The compound fertilizer of phosphate fertilizer has a total nutrient content of 45%. The basic fertilizer is obtained by mixing organic fertilizer and inorganic fertilizer according to the mass ratio of 3:1. The basic fertilizer is crushed and passed through a 40-mesh sieve.

[0032] 3) Mix and stir the corn stalk charcoal treated in step 1) and the basic fertilizer treated in step...

Embodiment 2

[0034] Embodiment 2: Preparation of environment-friendly carbon-based slow-release fertilizer

[0035] 1) Corn stalk charcoal (mass moisture content 15%), with a total nutrient content of 6.3%, is crushed and passed through a 40-mesh sieve.

[0036] 2) The organic fertilizer is selected from pig manure as the main raw material, and the organic fertilizer obtained by high-temperature aerobic fermentation has a total nutrient content of 7.5%, and other quality indicators meet the requirements of the NY525-2012 standard; its total nutrient content is 7.5% The inorganic fertilizer is compound fertilizer, whose total nutrient content is 54%. The basic fertilizer is obtained by mixing the organic fertilizer and the inorganic fertilizer according to the mass ratio of 4:1. The basic fertilizer is crushed and passed through a 40-mesh sieve.

[0037] 3) Mix and stir the corn stalk charcoal treated in step 1) and the basic fertilizer treated in step 2) according to the mass ratio of 50:5...

Embodiment 3

[0039] Example 3: Preparation of environmentally friendly carbon-based slow-release fertilizer

[0040] 1) Corn stalk charcoal (mass moisture content 15%), with a total nutrient content of 6.3%, is crushed and passed through a 40-mesh sieve.

[0041] 2) The organic fertilizer is selected from pig manure as the main raw material, and the organic fertilizer obtained by high-temperature aerobic fermentation has a total nutrient content of 7.5%, and other quality indicators meet the requirements of the NY525-2012 standard; its total nutrient content is 7.5% The inorganic fertilizer is compound fertilizer, whose total nutrient content is 54%. The organic fertilizer and inorganic fertilizer are mixed according to the mass ratio of 5:1 to obtain the basic fertilizer, and the basic fertilizer is crushed and passed through a 40-mesh sieve.

[0042] 3) Mix and stir the corn stalk charcoal treated in step 1) and the basic fertilizer treated in step 2) according to the mass ratio of 40:60...

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Abstract

The invention discloses an environment-friendly carbon-based slow-release fertilizer and a preparation method thereof. The environment-friendly carbon-based slow-release fertilizer is prepared from stalk carbon and basal fertilizer in a granulation mode. The mass ratio of the stalk carbon to the basal fertilizer is 1:(0.5-3). The total nutrient content of the environment-friendly carbon-based slow-release fertilizer is 10%-20% and refers to the sum of the mass fractions of N, P and K in fertilizer dry matter, wherein the mass fraction of P is metered as the mass fraction of P2O5, and the mass fraction of K is metered as the mass fraction of K2O. The stalk carbon and the organic fertilizer used in the environment-friendly carbon-based slow-release fertilizer can be directly or indirectly converted from agricultural and forestry waste, so that raw materials are easy to obtain, and cost is low. The production process of the environment-friendly carbon-based slow-release fertilize is clean and environmentally friendly; besides, the utilization rate of the nitrogen fertilizer and the phosphate fertilizer can be effectively increased after the environment-friendly carbon-based slow-release fertilize is applied into the soil, the application dose of the fertilizer is reduced, and thus food quality and safety are guaranteed.

Description

technical field [0001] The invention relates to an environment-friendly carbon-based slow-release fertilizer and a preparation method thereof, belonging to the technical field of environment-friendly fertilizer production. Background technique [0002] Fertilizer is an important material basis for agricultural production and is of great significance to ensuring food security in our country. For a long time, my country's agricultural production of fertilizers has been dominated by chemical fertilizers. The total amount and intensity of chemical fertilizers have been increasing year by year. Due to the unreasonable application of chemical fertilizers, not only waste of resources, but also pollution of soil, groundwater and crops. How to reduce the intensity of chemical fertilizer application, improve the efficiency of fertilizer use, and improve soil fertility are urgent needs for sustainable agricultural development. Slow-release fertilizer has the characteristics of less do...

Claims

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Application Information

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IPC IPC(8): C05G3/00
CPCC05G3/00C05F3/00
Inventor 赵立欣孟海波沈玉君程红胜宋立秋
Owner ACADEMY OF PLANNING & DESIGNING OF THE MINIST OF AGRI
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