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Method for degrading crop straws based on synergetic effect of black soldier fly and microorganism

A technology for crop straw and microbial degradation, which is applied in the treatment of biological organic parts, invertebrate treatment, agriculture, etc., can solve problems such as environmental pollution and excess crop straw, achieve zero waste discharge, realize resource utilization, reduce The effect of farming costs

Inactive Publication Date: 2019-01-25
WUHAN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention solves the major problems of crop straw surplus and environmental pollution by introducing the black soldier fly in the second half of the microbial decomposition of crop straw, and realizes resourceful, efficient, harmless treatment and utilization of agricultural waste straw, and at the same time Obtained black soldier fly resources and organic fertilizers with high economic value

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Get 500g of mechanically ground rice straw granules (powder) for subsequent use. Activate 0.1g of the composite bacterial agent with nutrients such as starch or brown sugar, then add the activated composite bacterial agent to the rice straw, add water to adjust the water content of the material to 65%, and then add 1.5g of urea to adjust the initial C / The N ratio was 35:1, and finally covered with plastic wrap and fermented at 65°C for 7 days. Open the plastic wrap every other day during the fermentation process, and turn over the material a little to increase the oxygen. After the fermentation is completed, add water until the water content of the material is 75%, and then spread the material in a black soldier fly breeding box with a thickness of about 5cm, add 20g of black soldier fly larvae of the third age and above, and store it at 28°C and a humidity of about 70%. cultured in the environment for 10 days. After the cultivation is completed, sieve and separate t...

Embodiment 2

[0027]Take 800g of mechanically ground wheat straw granules (powder) for subsequent use. Activate 0.15g of the composite bacterial agent with nutrients such as starch or brown sugar, then add the activated composite bacterial agent to the wheat straw, add water to adjust the water content of the material to 65%, and then add 2.4g of urea to adjust the initial C / The N ratio was 55:1, and finally covered with plastic wrap and fermented at 65°C for 9 days. Open the plastic wrap every other day during the fermentation process, and turn over the material a little to increase the oxygen. After the fermentation is completed, add water until the water content of the material is 75%, and then spread the material in a black soldier fly breeding box with a thickness of about 5cm. Add 25g of black soldier fly larvae of the third age and above, and store it at 30°C and a humidity of about 70%. Cultured in the environment for 9 days. Sieve and separate after the cultivation is completed ...

Embodiment 3

[0029] Take 300g of mechanically ground rice straw particles (powder), mix it with 700g of soybean meal and set aside. Use nutrients such as starch or brown sugar to activate 0.2g of the composite bacterial agent, and then add the activated composite bacterial agent to the straw-soybean meal mixture. At this time, the initial C / N ratio is 34:1. The water content reaches 65%, and then it is covered with plastic wrap and fermented at 65°C for 8 days. Open the plastic wrap every other day during the fermentation process, and turn over the material a little to increase the oxygen. After the fermentation is complete, add water until the water content of the material is 75%, and then spread the material in a black soldier fly breeding box with a thickness of about 5cm. Add 30g of black soldier fly larvae of the third age and above, and store it at 29°C and a humidity of about 70%. Cultured in the environment for 9 days. Sieve and separate after the cultivation is completed to obta...

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PUM

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Abstract

The invention relates to a method for degrading crop straws based on synergetic effect of black soldier flies and microorganisms, which mainly solves the problem that the crop straws are difficult totreat. The method comprises the following steps: firstly, preparing straws into particles or powder through a series of pretreatment, then mixing the particles or powder with a composite microbial inoculum, carrying out appropriate fermentation decomposition under proper conditions, and finally, introducing the black soldier fly into a fermented material for culturing, and separating to obtain theblack soldier fly with certain economic value and the high-quality organic fertilizer. In the whole process no waste is discharged, and straw resources are utilized to the maximum extent. The methodfor degrading crop straws based on synergetic effect of black soldier flies and microorganisms can effectively avoid the problems of straw incineration treatment and environmental pollution caused bythe straw incineration treatment, simultaneously reduces the cultivation cost of the black soldier fly, is of important significance on solving the pollution and waste of agricultural wastes such as straws and the like and increasing the income of farmers, is of wide application prospect, and is worthy of popularization.

Description

technical field [0001] The invention relates to the technical field of agricultural waste straw biotransformation and environmental protection, in particular to an industrialized and large-scale method for degrading crop straws based on black soldier flies and microorganisms. Background technique [0002] Crop straw is an important biomass energy, and its main components are lignin, cellulose and hemicellulose. Due to the special physical and chemical properties of these components, crop straw has not been effectively utilized. At present, the total utilization rate of crop straw is less than 33%, and the utilization rate after technical treatment is also less than 2.6%. Therefore, the effective treatment or transformation of crop residues is still facing great challenges. At present, the treatment methods of crop straw mainly include physical treatment methods such as mechanical crushing and steam explosion, chemical treatment methods such as acid, alkali, salt, organic so...

Claims

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Application Information

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IPC IPC(8): A01K67/033A23K50/90A23K10/37A23K10/12C05F15/00C05F17/00
CPCA01K67/033A23K10/12A23K10/37A23K50/90C05F11/00C05F17/05C05F11/08Y02P60/87Y02W30/40
Inventor 王存文姚槐应刘存成汪铁林王为国冯魏良熊晶李云
Owner WUHAN INSTITUTE OF TECHNOLOGY