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Organic fertilizer and preparation method thereof

A technology for organic composting and organic waste, applied in the field of agricultural and forestry organic composting and its preparation, can solve the problems of complex raw material components, high preparation cost, and long preparation process, and achieve increased porosity, air permeability, and high total porosity , the effect of alleviating the degree of hardening

Active Publication Date: 2010-06-30
SHANDONG TRALIN PAPER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] The organic compost of the present invention solves the above-mentioned problems in the prior art, that is, the raw material components are complicated, the preparation process is long and the preparation cost is high.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0117] (1) material preparation

[0118] Prepare the wheat straw straw to obtain the processed wheat straw straw and waste wheat bran;

[0119] (2) Cooking and pulping

[0120] Add the cooking agent ammonium sulfite to the treated wheat straw obtained in the previous step, wherein the amount of ammonium sulfite is 9% of the absolute dry raw material, the liquid ratio is 1:2, and steam is added for heating, and the temperature is raised to 100 Keep warm for 20 minutes at ℃, carry out small degassing, continue to heat up to 165 ℃, keep warm for 60 minutes, and obtain a high-hardness pulp with a concentration of 8% and a hardness of 16 potassium permanganate values;

[0121] (3) Post-treatment of high hardness pulp to obtain dilute black liquor

[0122] Enter the high-hardness pulp obtained in the previous step from the entrance of the squeezer, squeeze out the black liquor, wash the pulp after extruding the black liquor, and combine the extruded black liquor and the black liqu...

Embodiment 2

[0128] Add 3000kg of rice straw 1000kg into 3000kg of heavy polluted condensed water with a nitrogen content of 2500ppm and a temperature of 70°C produced during pulping by the ammonium method, then add 5kg of bran, stir and mix evenly, and the water content in the mixture is 65%. The ratio of the mass percentage of carbon to the mass percentage of nitrogen C:N=18:1, the pH is 10.0, after mixing, the bar stack fermentation method is used for natural aerobic fermentation, and the temperature is detected during the fermentation process. The temperature rises gradually, and begins to drop after the temperature is 55-60°C for 14 days. The temperature drops to 35°C and the fermentation process ends. phytic acid, the content of total potassium is 1.63g, the content of total phosphorus is 0.84g, and the content of total nitrogen is 1.59g; the ventilation space is 48.8%, the total porosity is 46.64, the water holding space is 16.84%, and there are also trace elements 32.54 mg / kg coppe...

Embodiment 3

[0130] Add 4500kg of condensed water with a nitrogen content of 500ppm and a temperature of 60°C to 1000Kg of waste wheat bran produced during the pulping process, and stir and mix evenly. The water content is 75%, and the mixture The ratio of the mass percentage of carbon to the mass percentage of nitrogen is C:N=30:1, and the pH is 9.5. After mixing, the strip-stack fermentation method is used for natural aerobic fermentation, and the temperature is detected during the fermentation process. The temperature rises gradually, and begins to drop after the temperature is 55-60°C for 15 days. The temperature drops to 32°C and the fermentation process ends. The pH is 8.2. The obtained product organic compost contains 41.25g organic matter per 100g Humic acid, the content of total potassium is 1.13g, the content of total phosphorus is 0.2g, the content of total nitrogen is 1.13g; the air gap is 38.8%, the total porosity is 49.64, the water holding gap is 10.84%, and it also contains ...

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Abstract

The invention provides an organic compost, which comprises the following components in part by weight: 10-50 organic matter, 5-20 humic acid, 0.5-2.0 total-N, 1.0-2.0 total-K and 0.1-0.5 total-P. The organic fertilizer is made by mixing and fermenting heavily polluted condensed water caused by black fluid concentration in the paper making process, crop straws, various plant organic matters or material preparing byproduct. The whole preparing technology is simple. The heavily polluted condensed water generated again in the paper making process and the straws are used to produce the organic fertilizer which is applied to the growing process of the crops again. The newly grown straws can be applied to the paper making industry. The cyclic utilization is the virtuous cycle of the sustainable development of industrial production. The organic compost reduces the soil hardened phenomenon, improves soil granular structure and can effectively promote the root to grow, obviously increase the number and thickness degree of the root, stimulate the crops to grow, strengthen the stress resistant performance of the crops and improve the quality of the crops.

Description

technical field [0001] The invention relates to an organic compost used for the growth of agricultural and forestry plants, more particularly to an organic compost for agricultural and forestry and a preparation method thereof. Background technique [0002] In modern agricultural planting, a large amount of chemical fertilizers are used in pursuit of high agricultural yields. At the beginning, the effect of chemical fertilizers is very good, but with the continuous increase of the amount of chemical fertilizers, it is found that there are almost no living organic organisms in the soil. The hardening can not keep and maintain the normal infiltration of water, resulting in nitrification of the soil, making the organic matter unable to survive, and the original soil loses its natural balance, which will cause extremely adverse consequences for future agricultural production. [0003] In recent years, organic fertilizers have become the fertilizer of choice for crops, and it has...

Claims

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Application Information

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IPC IPC(8): C05F17/00
CPCY02W30/40
Inventor 李洪法杨虎胡晓丽
Owner SHANDONG TRALIN PAPER
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