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Preparation method of slow-release organic fertilizer rich in beneficial components such as somatomedin

An organic fertilizer and slow-release technology, applied in the field of slow-release organic fertilizer preparation of beneficial ingredients, can solve the problems of low utilization rate, lack of growth promoting factors, loss, etc. Effect

Inactive Publication Date: 2017-03-01
NANKAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the organic fertilizer obtained by fermentation lacks growth-promoting factors, and the conventional method of adding it is easy to lose with rainwater or irrigation water, and the utilization rate is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A method for preparing biochar organic fertilizer with slow release and release of nutrient elements, comprising the following steps:

[0019] 1) Crush corn stalks into 1mm powder;

[0020] 2) The above powder was heated to 550°C at a heating rate of 2.5°C under anoxic conditions, and calcined at high temperature for 3 hours to obtain biochar;

[0021] 5) Ferment biochar with straw and cow dung at a ratio of 1:1000:500 and then feed earthworms;

[0022] 6) The vermicompost is discharged and collected. The vermicompost contains a certain proportion of biochar. The biochar absorbs the biological enzymes in the earthworm body along with the digestion process in the earthworm body and absorbs the nutrients in the digestive tract.

[0023] The organic fertilizer obtained by the above method is rich in active substances such as growth-promoting factors, biological enzymes, and nutritional elements, and the above-mentioned substances will not be lost with water, and the slow ...

Embodiment 2

[0025] 1. A preparation method of biochar organic fertilizer for slow-release releasing nutrient elements, comprising the following steps:

[0026] 1) Crush the corn cob into 1mm powder;

[0027] 2) The above powder was heated to 650°C at a heating rate of 2.5°C under anoxic conditions, and calcined at high temperature for 2.5 hours to obtain biochar;

[0028] 5) Ferment biochar with straw and cow dung at a ratio of 1:1200:800 and then feed earthworms;

[0029] 6) The vermicompost is discharged and collected. The vermicompost contains a certain proportion of biochar. The biochar absorbs the biological enzymes in the earthworm body along with the digestion process in the earthworm body and absorbs the nutrients in the digestive tract.

[0030] The organic fertilizer obtained by the above method is rich in active substances such as growth-promoting factors, biological enzymes, and nutritional elements, and the above-mentioned substances will not be lost with water, and the slow...

Embodiment 3

[0032] 1. A preparation method of biochar organic fertilizer for slow-release releasing nutrient elements, comprising the following steps:

[0033] 1) Crush the corn cob into 1mm powder;

[0034] 2) The above powder was heated to 700°C at a heating rate of 2.5°C under anoxic conditions, and calcined at high temperature for 2 hours to obtain biochar;

[0035] 5) Mix and ferment biochar with straw and cow dung at a ratio of 1:1200:700 and then feed earthworms;

[0036] 6) The vermicompost is discharged and collected. The vermicompost contains a certain proportion of biochar. The biochar absorbs the biological enzymes in the earthworm body along with the digestion process in the earthworm body and absorbs the nutrients in the digestive tract.

[0037] The organic fertilizer obtained by the above method is rich in active substances such as growth-promoting factors, biological enzymes, and nutritional elements, and the above-mentioned substances will not be lost with water, and th...

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PUM

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Abstract

At present, use of fertilizers in quantity leads to continuous decline of soil fertility and severe salinization. Nutrients required in soil during use of organic fertilizers in quantity flow away with water during the irrigation process, thus leading to nutrition shortage. Then, growth of plants and crops is severely influenced. Thus, a slow release technology of nutrient elements which are needed for soil is badly in need. The invention discloses a biochar organic fertilizer containing rich nutrient elements. The slow release period of nutrient elements is long, and adsorption quantity is large. By the method, soil fertility can be enhanced, and application amount of fertilizers can be greatly reduced. Therefore, preservation of cultivated land is realized, and the purpose of sustainable utilization of cultivated land is achieved.

Description

technical field [0001] The invention relates to a slow-release organic fertilizer technology, in particular to a preparation method of a slow-release organic fertilizer rich in beneficial ingredients such as growth-promoting factors. Background technique [0002] In the past 30 years, my country's straw resources have shown the characteristics of a slow growth in the total amount. Among them, corn stalks account for the largest proportion. Due to the renewable and clean nature of straw resources, there are large reserves in nature, and they are continuously accumulated every year, providing resource guarantee for the sustainable development of human society. Realizing efficient utilization of straw resources while avoiding environmental pollution is an important issue facing the sustainable development of modern society. [0003] Fermentation of corn stalks to prepare organic fertilizers can provide sufficient organic components for the soil and improve farmland soil quali...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F3/00A01K67/033
CPCA01K67/0332C05F3/00Y02A40/20
Inventor 李维尊鞠美庭
Owner NANKAI UNIV
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