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Straw composting process, organic fertilizer and preparation method thereof

An organic fertilizer and a technology for organic fertilizer, which are applied in the fields of organic fertilizer and its preparation, and straw composting technology, can solve the problems of large environmental pollution, poor decomposing degree, low utilization rate of straw biomass energy, etc., so as to reduce production costs and improve production. The effect of efficiency

Pending Publication Date: 2019-04-19
湖北绿鑫生态科技有限公司
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With this conventional composting method, the utilization rate of straw biomass is low, the degree of decomposition is poor, the environmental pollution is large, the content of diseases and insect pests in the fertilizer is high, the fertilizer efficiency is low, and it is easy to cause secondary fermentation to burn seedlings.
If the straw is aerobically composted separately, various strains need to be added, the decomposing period is long, the fertilizer product is slow, and the production cost is high, and the production process cannot be standardized

Method used

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  • Straw composting process, organic fertilizer and preparation method thereof
  • Straw composting process, organic fertilizer and preparation method thereof

Examples

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Embodiment 1

[0025] This embodiment provides a straw composting process, comprising the following steps:

[0026] S1, knead and crush the corn stalks until the length is 8cm-15cm, mix according to the weight ratio of straw and pig manure 56:44, control the moisture content to 60%, the carbon-nitrogen ratio to 28:1, and use fly ash to adjust the pH value to be weak Alkaline, with a total weight of 1000Kg, to obtain a mixed material. Compared with traditional cutting crushing, kneading crushing is not only efficient, but also more economical.

[0027] S2, put the mixed material in the compost bin, seal the compost bin, rapidly raise the temperature of the mixed material in the compost bin to 70±2°C with the help of residual oxygen in the air in the compost bin, and react for 2 days to obtain the primary material. This step treatment can not only eliminate miscellaneous bacteria and complete disinfection, but also allow the straw to swell and soften at high temperature, better absorb water, ...

Embodiment 2

[0032] This embodiment provides a straw composting process, comprising the following steps:

[0033] S1, crush the wheat straw to a length of 8cm-15cm, mix it according to the weight ratio of straw and cow dung at 1:1, control the moisture content to 55%, and the carbon-to-nitrogen ratio to 30:1, and use fly ash to adjust to weak alkaline , with a total weight of 1000Kg to obtain a mixed material. Compared with traditional cutting crushing, kneading crushing is not only efficient, but also more economical.

[0034] S2, put the mixed material in the compost bin, seal the compost bin, rapidly raise the temperature of the mixed material in the compost bin to 70±2°C with the help of residual oxygen in the air in the compost bin, and react for 2 days to obtain the primary material. This step treatment can not only eliminate miscellaneous bacteria and complete disinfection, but also allow the straw to limit expansion and soften at high temperature, better absorb water, and facilita...

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Abstract

The invention relates to a straw composting process, organic fertilizer and a preparation method thereof, the straw composting process comprises the following steps of: kneading and crushing straws tobe 8-15cm in length, mixing crushed straws with manure, and controlling the water content to be 55-65% and the carbon-nitrogen ratio to be 20-30: 1 to obtain a mixture, placing the mixture in a compost box, sealing the compost box, raising the temperature to 70+ / -2 DEG C, sterilizing and softening the mixture; supplying air to the composting box at intervals so that the temperature of the mixtureis maintained at 50-65 DEG C, keeping the oxygen content in the composting box no less than 10%, and carrying out forced aerobic fermentation for 4 days in the first stage for 4-6 days; then introducing a large amount of air into the compost box, reducing the temperature of the mixture to be below 50 DEG C, then naturally heating the mixture and intermittently supplying air, keeping the oxygen content in the compost box no less than 16%, and carrying out the second stage of forced aerobic fermentation for 3-5 days, cooling to room temperature, and aging. According to the straw composting process, organic fertilizer with high decomposition degree can be obtained as a whole, and the decomposition period can be shortened.

Description

technical field [0001] The invention relates to a straw composting process, an organic fertilizer and a preparation method thereof. Background technique [0002] The traditional straw fertilization technology basically uses direct burning of straw or natural aerobic fermentation after mixing straw with manure. With this conventional composting method, the utilization rate of straw biomass is low, the degree of maturity is poor, the environmental pollution is large, the content of diseases and insect pests in the fertilizer is high, the fertilizer efficiency is low, and it is easy to cause the situation of burning seedlings in the secondary fermentation. If the straw is aerobically composted separately, various bacterial strains need to be added, the decomposing period is long, the fertilizer product is slow, and the production cost is high, and the production process cannot be standardized. Contents of the invention [0003] Aiming at the technical problems in the prior a...

Claims

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Application Information

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IPC IPC(8): C05F15/00C05F17/00
CPCC05F3/00C05F17/50C05F11/00C05F5/002Y02W30/40
Inventor 张驭舟熊炜李进峰
Owner 湖北绿鑫生态科技有限公司
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