Method for digesting straws by earthworm

An earthworm and straw technology, applied in animal husbandry, biological sludge treatment and other directions, can solve problems such as low efficiency and straw decomposition, and achieve the effects of good growth, high digestion efficiency and more spawning.

Inactive Publication Date: 2010-06-23
YANGZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the problem that the efficiency of the existing methods for treating straw by earthworms is not high, and the straw needs to be decomposed first, the present invention provides a new method, which can make the straw and other wastes into a mixed material, which can improve the efficiency of earthworms. Efficiency of handling straw

Method used

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  • Method for digesting straws by earthworm

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Example 1: Test of the material ratio of earthworm digestion straw

[0011] 1. Material

[0012] The experiment used "Daping No. 2" earthworms, provided by the earthworm breeding base of Yangzhou University Experimental Farm. Rice straw and sludge are taken from farmers and domestic sewage treatment plants.

[0013] 2. Method

[0014] A mixture of earthworms (2kg, calculated on a wet basis)-worm feces 84.7kg (50kg on a dry basis) was placed in a self-made wooden culture frame (100cm×100cm×40cm) with a 0.2mm aperture nylon screen as the bottom in advance. The rice straws and sludge that have been processed into 10cm long in advance are mass ratio (kg / kg) 66.3 / 0, 59.7 / 18.8, 53.1 / 37.6, 46.4 / 56.4, 39.8 / 75.2 and 33.2 / 94.0 (the combined dry basis mass ratio respectively) 100 / 0, 90 / 10, 80 / 20, 70 / 30, 60 / 40 and 50 / 50) fully mixed (equivalent to a dry weight of 50kg, in which the water content of straw and sludge are 24.6%, 73.4%, respectively) ) Is added to it, and when 1 / 4 of the su...

Embodiment 2

[0022] An example of the present invention is to build an earthworm bed of 500m per mu of land 2 , Mix 60% straw with 40% livestock manure or domestic sludge. The mixture is piled into long stacks about 20cm in height, 40cm in width and 3.5m in length, and each stack is about 15cm apart. Cover the mixture of domesticated working earthworms and earthworm feces on the long stacks of organic material mixtures such as straws at the same time. The input amount of earthworms is 0.5kg / m 2 Appropriate; the thickness of vermicompost covering should be 3-5cm. Too thick is not conducive to ventilation, and too thin will lose water quickly, which is detrimental to the survival of working earthworms. When vermicompost is covered, all the organic material mixture such as straw should be covered. When the organic material mixture such as straw is digested by about 50-60%, add the material immediately. When adding the material, add the organic material mixture such as straw and straw between the...

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Abstract

The invention belongs to the technical field of agricultural solid organic waste biological digestion, in particular to a method for digesting straws by earthworm. The method comprises the following steps: after the straws are crushed, the straws and livestock manures or domestic sludge are prepared to a mixed material in weight ratio of 6:4; and the earthworm is placed into the mixed material for biological digestion. The method ensures that the earthworm can be safely placed on the straws and other organic material mixtures, is environment-friendly and safe, has good growing condition of working earthworm, large finished product earthworm yield, more egg production and high digestion efficiency, and the amount of the straws and other organic material mixtures in mean daily consumption is 2 to 3 times of the weight of the earthworm.

Description

Technical field [0001] The invention belongs to the technical field of biological digestion of agricultural solid organic wastes, and is an organic component part of the utilization technology of farmland straw resources, and specifically relates to a method for earthworms to digest straw. Background technique [0002] The amount of crop stalks in my country is huge, and about 50% of them have not been effectively processed and utilized. Part of the straw is burned directly, which not only wastes resources, but also causes serious air pollution, and even causes fires and affects the safety of highways and civil aviation. Crop straw contains carbon, nitrogen, phosphorous, potassium, silicon, calcium, magnesium, sulfur and a variety of trace elements, and is rich in organic substances such as cellulose, hemicellulose, and protein. It can be used for silage, gasification, return to farmland, biological fertilizer and construction materials. It is a beneficial attempt to use earthw...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/02A01K67/033
Inventor 柏彦超钱晓晴封克赵海涛王保辛蔡树美陈峰杨万玉
Owner YANGZHOU UNIV
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