CN102357500B - Method for treating crop straw - Google Patents

Abstract

The invention relates to a method for processing crop stalks. A method for treating crop stalks, characterized in that it comprises the following steps: 1) preparation of a compound bacterial agent: the compound bacterial agent is composed of A bacterial agent and B bacterial agent; 2) crushing straw raw materials; 3) Preparation of fermentation liquid A; 4) Fermentation of inoculation liquid A: evenly spray the fermentation liquid A on the crushed stalks, and pile them into piles, and the mass ratio of the crushed straw to the fermentation liquid A is 1:1 ～1.5; keep the temperature of the stockpile between 25～35°C, continue to ferment for 4～7 days, and obtain the stalks that have been inoculated with bacterial solution A and fermented for 4～7 days; 5) preparation of fermented bacterial solution B; 6) inoculation Fermentation of Bacterial Liquid B: Stir the stalks that have been inoculated with Bacterial Liquid A and fermented for 4 to 7 days and mix them with the fermented Bacterial Liquid B at a mass ratio of 20 to 30:1; keep the stockpile temperature between 25 and 35°C, After 5-8 days of fermentation, the whole fermentation process ends. The method has the characteristics of low production cost and high degradation rate.

Description

A method for processing crop stalks

technical field

The invention relates to a method for processing crop straws, in particular to a method for efficiently degrading crop straws by using microorganisms.

Background technique

my country is a large agricultural country. According to rough statistics, more than 700 million tons of crop straw are produced every year, 89% of which have not been utilized or rationally utilized (such as direct incineration). At present, less than 2% of agricultural and forestry fiber by-products are developed and utilized in the world, and more than 50% of agricultural and forestry wastes in my country are burned in vain in the fields. Every year, the incineration of agricultural and forestry waste not only causes direct economic losses of hundreds of millions of yuan, but also produces billowing smoke and a large amount of harmful gases due to incineration, which seriously affects the safety of roads and aviation, pollutes the environment, and affects climate and ecology. had a serious impact. At the same time, with the rapid development of the global economy, the reserves of oil and coal on the earth are decreasing at an alarming rate, and the energy crisis has become a serious problem faced by most countries in the world. In addition, due to the destructive exploitation and utilization of resources, the environment on which human beings depend is deteriorating. The sustainable development strategy for the research and development of renewable resource utilization has been gradually carried out in countries all over the world. The development and utilization of plant cellulose resources has a great impact on It has far-reaching significance to solve the problems of food and resource shortage and environmental pollution.

At present, the main outlets of straw include straw returning to the field; feed utilization; straw gasification, solidification and carbonization; as a culture material for the production of edible fungi; industrial applications, etc. Straw returning includes on-site returning, rapid retting and composting. Among them, returning straw directly to the field can increase the content of soil organic matter and fertilize the soil, which is of great significance to the sustainable development of agriculture, but there are still many problems that have not been resolved. First of all, the high C/N ratio of straw is not conducive to the degradation of soil microorganisms, but may also cause nitrogen deficiency and poor growth of crops; secondly, straw may also spread some diseases and cause crop yield reduction. Rapid retting and composting have the problem of degradation of lignocellulose. Feed technologies mainly include ammonification of silage, fermentation and production of single-cell protein. There are many kinds of crop straws that can be used as feed in our country, but they have common nutritional characteristics: low content of protein, soluble carbohydrates, minerals and carotene, and high content of crude fiber, so the digestibility is low and the palatability is poor. To improve palatability and increase digestibility, the key lies in the degradation of lignocellulose. Industrial applications include papermaking, biodegradable production of starch, alcohol, acetic acid, etc., which are likely to cause serious environmental pollution, and also have the problem of degradation of lignocellulose.

Due to the large molecular weight of lignocellulose, lignin, hemicellulose and cellulose are entangled with each other, the structure is complex, and the properties are stable. Therefore, the commonly used physical and chemical degradation methods cannot be effectively degraded, and bring cost and environmental problems. Biological methods are environmentally friendly, non-polluting, low-cost, and mild in use, and have great potential in rapidly and effectively degrading lignocellulosic substances. Invention patent (CN101948753A) discloses "a new type of composite bacterial agent for degrading crop straw". When the composite bacterial agent is used to degrade straw, it needs to be fermented at about 30°C for 30 days, and the degradation rate of lignin is as low as 27.8%. Moreover, due to the lack of strains that degrade hemicellulose, the composite microbial agent has the problems of less synergistic effect of each strain when degrading straw, long fermentation time, and low degradation rate of lignocellulose as a whole. Invention patent (CN101058792A) discloses "a high-efficiency straw decomposition composite flora". The flora is composed of fourteen strains including fungi, bacteria and actinomycetes. Mold and other strains in the flora, such as Phanerochaete chrysosporium, Bacillus subtilis and Candida, have strong nutritional competition and antagonism. Simple combination will cause the efficiency of the flora to decrease and consume each other. Cause great waste and increase production cost.

Contents of the invention

The object of the present invention is to provide a method for processing crop straws, which has low production cost and high degradation rate.

In order to achieve the above object, the technical solution adopted in the present invention is: a method for processing crop stalks, characterized in that it comprises the following steps:

1) Preparation of compound bacterial agent: the compound bacterial agent is composed of A bacterial agent and B bacterial agent (two groups of separately packed bacterial agents);

①According to the mass percentage of each bacterial species: Phaerochaete chrysosporium 28%～38%, Trametes versicolor 5%～10%, Pleurorus otreatus 6%～ 12%, Canadian krusei 7-14%, Bacillus Subtilis 6%-11%, and Bacillus Licheniformis 15-25%, select Phanerochaete chrysosporium ( Phaerochaete chrysosporium), Trametes versicolor, Pleurorus otreatus, Canadian krusei, Bacillus Subtilis and Bacillus Licheniformis, mixed to obtain A Bacteria;

②According to the mass percentages of various strains: Trichoderma Viride (Trichoderma Viride) 30% to 40% and Trichoderma koningii (Trichoderma koningii) 60% to 70%, select Trichoderma Viride (Trichoderma Viride) and Koningii Mildew (Trichoderma koningii), mixed, obtains B bacterial agent;

2) Crushing of straw raw materials: putting crop straws into a pulverizer, pulverizing them into small pieces of 1 cm to 3 cm, and obtaining pulverized straws;

3) Preparation of fermented bacterial liquid A: Take out the bacterial agent A and mix it with water at a mass ratio of 1:100-200 (so that the bacterial agent A is evenly dispersed in the water) to obtain the bacterial liquid; then add ammonium bicarbonate to the bacterial liquid , stirring (ammonium bicarbonate is fully dissolved) to obtain fermentation broth A; wherein, the addition of ammonium bicarbonate is 2 to 3% of the quality of the bacterial fluid;

4) Fermentation of the inoculated bacterial liquid A: Spray the fermented bacterial liquid A evenly on the crushed stalks and pile them into a stockpile. The mass ratio of the crushed straw to the fermented bacterial liquid A is 1:1 to 1.5; The temperature is between 25-35°C (if the temperature is low in winter, the stockpile is covered with a film), and the fermentation is continued for 4-7 days to obtain straw that has been inoculated with bacterial solution A and fermented for 4-7 days;

5) Preparation of fermented bacterial liquid B: take out bacterial agent B and mix with water at a mass ratio of 1:30-40 (so that bacterial agent B is evenly dispersed in water) to obtain fermented bacterial liquid B;

6) Fermentation of inoculated bacterial solution B: Fully turn the straw that has been inoculated with bacterial solution A and fermented for 4 to 7 days and mix it with fermented bacterial solution B at a mass ratio of 19 to 30:1; keep the stockpile temperature at 25 to 35°C After continuous fermentation for 5-8 days, the whole fermentation process ends.

According to the above scheme, the crop straw is any one or any two or more kinds (including Any two kinds of) mixing, any two or more kinds (including any two kinds) are mixed in any proportion.

The beneficial effects of the present invention are:

1. The bacterial strains, medicaments and equipment involved in the present invention are easily available in the market, and the production cost is low.

2. The method of the present invention has the advantages of simple and convenient operation, mild conditions, easy control and no difficulty in realization.

3. The strains in the compound microbial agent A bacterial agent of the present invention have been tested for compatibility with each other, and there is no antagonism and obvious nutritional competition. Therefore, they can cooperate with each other, the fermentation time is short, and the degradation efficiency is high. ; B bacteria agent is the same.

4. The compound bacterial agent of the present invention contains degrading bacteria such as cellulose, hemicellulose, lignin, protein, pectin, etc. It is rich in varieties and reasonable in combination, and can fully degrade various organic substances in straw.

5. In the method of the present invention, after inoculation of A bacterial agent and fermentation for a period of time, and then inoculation of B bacterial agent, the effects of each bacterial agent can be fully brought into play, and the presence of bacteria between A and B bacterial agents can be effectively avoided and alleviated. nutrient competition, so the overall efficiency is higher.

Detailed ways

The preferred version of the present invention is described below; it is included in the protection scope of the present invention, but does not limit the present invention.

Example 1:

A method for processing crop stalks, comprising the steps of:

1) Preparation of compound bacterial agent: the compound bacterial agent is composed of A bacterial agent and B bacterial agent (two groups of separately packed bacterial agents);

①According to the mass percentage of each strain: Phaerochaete chrysosporium 28%, Trametes versicolor 10%, Pleurorus otreatus 12%, Krussia saccharomyces ( Canadiankrusei) 14%, Bacillus Subtilis 11% and Bacillus Licheniformis 25%, select Phaerochaete chrysosporium, Trametes versicolor, Pleurorus otreatus), Krusei saccharomyces (Canadian krusei), Bacillus subtilis (Bacillus Subtilis) and Bacillus licheniformis (Bacillus Licheniformis), mixed to obtain A microbial agent;

2. account for the mass percent by each strain: Trichoderma Viride (Trichoderma Viride) 30% and Trichoderma koningii (Trichoderma koningii) 70%, choose Trichoderma Viride (Trichoderma Viride) and Kangshi Trichoderma (Trichoderma koningii), mix , to obtain B bacterial agent;

2) Crushing of straw raw materials: put 100kg of rapeseed straw into a pulverizer, pulverize into small sections of 2 cm, and obtain pulverized straw;

3) Preparation of fermented bacterial liquid A: Weigh 0.5kg of bacterial agent A in the compound bacterial agent and mix with 100kg of water (so that the bacterial agent A is evenly dispersed in water) to obtain the bacterial liquid; then add 2.5kg of bacterial liquid to the bacterial liquid Ammonium bicarbonate (the addition of ammonium bicarbonate is 2.49% of the quality of the bacterial liquid); stirring (to fully dissolve the ammonium bicarbonate) to obtain the fermentation liquid A;

4) Fermentation of the inoculated bacterial liquid A: Spray the fermented bacterial liquid A evenly on 100kg of crushed stalks to form a pile; keep the temperature of the pile at about 30°C (if the temperature is low in winter, use the pile of film covering), continued fermentation for 6 days, and obtained stalks that had been inoculated with bacterial solution A and fermented for 6 days;

5) Preparation of fermented bacterial liquid B: take 0.25 kg of B bacterial agent in the compound bacterial agent and mix and stir with 10 kg of water (so that B bacterial agent is evenly dispersed in water) to obtain fermented bacterial liquid B;

6) Fermentation of inoculated bacterial solution B: fully turn over the straw that has been inoculated with bacterial solution A and fermented for 6 days, and mix it with fermented bacterial solution B at a mass ratio of 20-30:1; keep the stockpile temperature at about 30°C, and continue to ferment After 7 days, the entire fermentation process is over.

It is measured that the degradation rates of cellulose, hemicellulose and lignin in the fermented rape stalks are 46%, 38% and 42% respectively, which shows that the degradation rate of the present invention is high.

Example 2:

A method for processing crop stalks, comprising the steps of:

1) Preparation of compound bacterial agent: the compound bacterial agent is composed of A bacterial agent and B bacterial agent (two groups of separately packed bacterial agents);

①According to the mass percentage of each strain: Phaerochaete chrysosporium 38%, Trametes versicolor 10%, Pleurorus otreatus 12%, Krussia saccharomyces ( Canadiankrusei) 14%, Bacillus Subtilis 11% and Bacillus Licheniformis 15%, select Phaerochaete chrysosporium, Trametes versicolor, Pleurorus otreatus), Krusei saccharomyces (Canadian krusei), Bacillus subtilis (Bacillus Subtilis) and Bacillus licheniformis (Bacillus Licheniformis), mixed to obtain A microbial agent;

2. account for the mass percent by each strain: Trichoderma Viride (Trichoderma Viride) 40% and Trichoderma koningii (Trichoderma koningii) 60%, choose Trichoderma Viride (Trichoderma Viride) and Kangshi Trichoderma (Trichoderma koningii), mix , to obtain B bacterial agent;

2) Crushing of straw raw materials: 100 kg of rice straw is put into a pulverizer, and pulverized into small sections of 3 cm to obtain pulverized straw;

3) Preparation of fermented bacterial liquid A: Weigh 0.6kg of bacterial agent A in the compound bacterial agent and mix and stir with 120kg of water (so that the bacterial agent A is evenly dispersed in water) to obtain the bacterial liquid; then add 2.42kg of bacterial liquid to the bacterial liquid ammonium bicarbonate, stirred (ammonium bicarbonate is fully dissolved), to obtain fermentation broth A;

4) Fermentation of inoculated bacterial liquid A: Spray the fermented bacterial liquid A evenly on 100kg of crushed stalks to form a pile; keep the temperature of the pile at about 28°C (if the temperature is low in winter, use the pile of film covering), continued fermentation for 5 days, and obtained stalks that had been inoculated with bacterial solution A and fermented for 5 days;

5) Preparation of fermentation bacterial liquid B: take 0.3 kg of B bacterial agent in the compound microbial agent and mix and stir with 9 kg of water (so that B bacterial agent is evenly dispersed into the water) to obtain fermentation bacterial liquid B;

6) Fermentation of inoculated bacterial solution B: Fully turn the straw that has been inoculated with bacterial solution A and fermented for 5 days and mix it with fermented bacterial solution B; keep the temperature of the stockpile at about 28°C, continue fermentation for 6 days, and the entire fermentation process ends.

It is measured that the degradation rates of cellulose, hemicellulose and lignin in the fermented rice straw are 45%, 39% and 43% respectively, which shows that the degradation rate of the present invention is high.

Example 3:

A method for processing crop stalks, comprising the steps of:

1) Preparation of compound bacterial agent: the compound bacterial agent is composed of A bacterial agent and B bacterial agent (two groups of separately packed bacterial agents);

①According to the mass percentage of each strain: Phaerochaete chrysosporium 38%, Trametes versicolor 5%, Pleurorus otreatus 7%, Krussia saccharomyces ( Canadiankrusei) 14%, Bacillus Subtilis 11% and Bacillus Licheniformis 25%, select Phaerochaete chrysosporium, Trametes versicolor, Pleurorus otreatus), Krusei saccharomyces (Canadian krusei), Bacillus subtilis (Bacillus Subtilis) and Bacillus licheniformis (Bacillus Licheniformis), mixed to obtain A microbial agent;

2. account for the mass percent by each strain: Trichoderma Viride (Trichoderma Viride) 35% and Trichoderma koningii (Trichoderma koningii) 65%, choose Trichoderma Viride (Trichoderma Viride) and Kangshi Trichoderma (Trichoderma koningii), mix , to obtain B bacterial agent;

2) Crushing of straw raw materials: put 100kg of sesame straw into a pulverizer, pulverize into 3cm segments, and obtain pulverized straw;

3) Preparation of fermented bacterial liquid A: Weigh 0.6kg of bacterial agent A in the compound bacterial agent and mix and stir with 100kg of water (so that the bacterial agent A is evenly dispersed in water) to obtain the bacterial liquid; then add 2.6kg of bacterial liquid to the bacterial liquid ammonium bicarbonate, stirred (ammonium bicarbonate is fully dissolved), to obtain fermentation broth A;

4) Fermentation of the inoculated bacterial liquid A: Spray the fermented bacterial liquid A evenly on 100kg of crushed stalks to form a pile; keep the temperature of the pile at about 30°C (if the temperature is low in winter, use the pile of film covering), continued fermentation for 6 days, and obtained stalks that had been inoculated with bacterial solution A and fermented for 6 days;

5) Preparation of fermented bacterial liquid B: take 0.3 kg of B bacterial agent in the compound bacterial agent and mix and stir with 10 kg of water (so that B bacterial agent is evenly dispersed in water) to obtain fermented bacterial liquid B;

6) Fermentation of inoculated bacterial solution B: fully turn the straw that has been inoculated with bacterial solution A and fermented for 6 days and mix it with fermented bacterial solution B; keep the temperature of the stockpile at about 30°C, continue fermentation for 6 days, and the entire fermentation process ends.

The measured degradation rates of cellulose, hemicellulose and lignin in the fermented sesame stalks are 42%, 37% and 40% respectively, indicating that the degradation rate of the present invention is high.

Example 4:

A method for processing crop stalks, characterized in that it comprises the following steps:

1) Preparation of compound bacterial agent: the compound bacterial agent is composed of A bacterial agent and B bacterial agent (two groups of separately packed bacterial agents);

①According to the mass percentage of each bacterial species: Phaerochaete chrysosporium (Phaerochaete chrysosporium) 38%, Trametes versicolor (Trametes versicolor) 6%, Pleurorus otreatus (Pleurorus ostreatus) 6%, Krussia saccharomyces ( Canadiankrusei) 14%, Bacillus Subtilis 11% and Bacillus Licheniformis 25%, select Phaerochaete chrysosporium, Trametes versicolor, Pleurorus otreatus), Krusei saccharomyces (Canadian krusei), Bacillus subtilis (Bacillus Subtilis) and Bacillus licheniformis (Bacillus Licheniformis), mixed to obtain A microbial agent;

2. account for the mass percent by each strain: Trichoderma Viride (Trichoderma Viride) 32% and Trichoderma koningii (Trichoderma koningii) 68%, choose Trichoderma Viride (Trichoderma Viride) and Kangshi Trichoderma (Trichoderma koningii), mix , to obtain B bacterial agent;

2) Crushing of straw raw materials: put 100kg of peanut straw into a pulverizer, pulverize into small pieces of 1 cm, and obtain pulverized straw;

3) Preparation of fermented bacterial liquid A: Weigh 0.6kg of bacterial agent A in the compound bacterial agent and mix and stir with 120kg of water (so that the bacterial agent A is evenly dispersed in water) to obtain the bacterial liquid; then add 2.7kg of bacterial liquid to the bacterial liquid ammonium bicarbonate, stirred (ammonium bicarbonate is fully dissolved), to obtain fermentation broth A;

4) Fermentation of the inoculated bacterial liquid A: evenly spray the fermented bacterial liquid A on 100 kg of crushed stalks, and pile them into a stockpile; keep the temperature of the stockpile between 25 and 35°C (if the temperature is low in winter, put The stockpile is covered with a film), and the fermentation is continued for 7 days to obtain the stalk that has been inoculated with the bacterial solution A and fermented for 7 days;

5) Preparation of fermented bacterial liquid B: take 0.25 kg of B bacterial agent in the compound bacterial agent and mix and stir with 10 kg of water (so that B bacterial agent is evenly dispersed in water) to obtain fermented bacterial liquid B;

6) Fermentation of inoculated bacterial solution B: Fully turn the straw that has been inoculated with bacterial solution A and fermented for 7 days and mix it with fermented bacterial solution B; keep the temperature of the stockpile at about 31°C, continue fermentation for 8 days, and the entire fermentation process ends.

It is measured that the degradation rates of cellulose, hemicellulose and lignin in the fermented peanut straw are 49%, 41% and 45% respectively, which shows that the degradation rate of the present invention is high.

Example 5:

A method for processing crop stalks, comprising the steps of:

1) Preparation of compound bacterial agent: the compound bacterial agent is composed of A bacterial agent and B bacterial agent (two groups of separately packed bacterial agents);

①According to the mass percentage of each strain: Phaerochaete chrysosporium 38%, Trametes versicolor 10%, Pleurorus otreatus 12%, Krussia saccharomyces ( Canadiankrusei) 7%, Bacillus Subtilis 11% and Bacillus Licheniformis 22%, select Phaerochaete chrysosporium, Trametes versicolor, Pleurorus otreatus), Krusei saccharomyces (Canadian krusei), Bacillus subtilis (Bacillus Subtilis) and Bacillus licheniformis (Bacillus Licheniformis), mixed to obtain A microbial agent;

2. account for the mass percent by each strain: Trichoderma Viride (Trichoderma Viride) 31% and Trichoderma Koningii (Trichoderma koningii) 69%, choose Trichoderma Viride (Trichoderma Viride) and Kangshi Trichoderma (Trichoderma Koningii), mix , to obtain B bacterial agent;

2) Crushing of straw raw materials: put crop straws into a pulverizer and crush them into 1cm segments to obtain crushed straws; the crop straws are cotton straw and wheat straw, and the quality of cotton straw and wheat straw is 50% each. %;

3) Preparation of fermentation broth A: Take out bacterial agent A and mix with water at a mass ratio of 1:100 (so that microbial agent A is evenly dispersed in water) to obtain bacterial liquid; then add ammonium bicarbonate to the bacterial liquid, stir (make ammonium bicarbonate fully dissolved), obtain fermented bacterium liquid A; Wherein, the add-on of ammonium bicarbonate is 2% of the bacterium liquid quality;

4) Fermentation of the inoculated bacterial liquid A: Spray the fermented bacterial liquid A evenly on the crushed stalks and pile them into a stockpile. The mass ratio of the crushed straw to the fermented bacterial liquid A is 1:1; keep the temperature of the stockpile at 25°C (if the temperature is low in winter, cover the stockpile with a film), continue fermentation for 4 days, and obtain stalks that have been inoculated with bacterial solution A and fermented for 4 days;

5) Preparation of the fermentation liquid B: take out the bacterial agent B and mix it with water at a mass ratio of 1:30 (so that the bacterial agent B is evenly dispersed in the water) to obtain the fermentation liquid B;

6) Fermentation of inoculated bacterial solution B: fully turn the straw that has been inoculated with bacterial solution A and fermented for 4 days and mix it with fermented bacterial solution B at a mass ratio of 19:1; keep the stockpile temperature at 25°C, and continue to ferment for 5 days. The whole fermentation process is over.

The measured degradation rates of cellulose, hemicellulose and lignin in the fermented peanut stalks are 42%, 39% and 41% respectively, indicating that the degradation rate of the present invention is high.

Embodiment 6:

A method for processing crop stalks, comprising the steps of:

1) Preparation of compound bacterial agent: the compound bacterial agent is composed of A bacterial agent and B bacterial agent (two groups of separately packed bacterial agents);

①According to the mass percentage of each strain: Phaerochaete chrysosporium 38%, Trametes versicolor 10%, Pleurorus otreatus 12%, Krussia saccharomyces ( Canadiankrusei) 14%, Bacillus Subtilis 6% and Bacillus Licheniformis 20%, select Phaerochaete chrysosporium, Trametes versicolor, Pleurorus otreatus), Krusei saccharomyces (Canadian krusei), Bacillus subtilis (Bacillus Subtilis) and Bacillus licheniformis (Bacillus Licheniformis), mixed to obtain A microbial agent;

2. account for the mass percent by each strain: Trichoderma Viride (Trichoderma Viride) 39% and Trichoderma Koningii (Trichoderma koningii) 61%, choose Trichoderma Viride (Trichoderma Viride) and Kangshi Trichoderma (Trichoderma Koningii), mix , to obtain B bacterial agent;

2) Crushing of straw raw materials: put crop straws into a pulverizer and crush them into small sections of 3 cm to obtain crushed straws; the crop straws are bean straw and sorghum straw, and the quality of bean straw and sorghum straw is 50% each. %;

3) Preparation of the fermentation liquid A: Take out the bacterial agent A and mix it with water at a mass ratio of 1:200 (so that the bacterial agent A is evenly dispersed in the water) to obtain the bacterial liquid; then add ammonium bicarbonate to the bacterial liquid, stir (make ammonium bicarbonate fully dissolved), obtain fermented bacterium liquid A; Wherein, the add-on of ammonium bicarbonate is 3% of the bacterium liquid quality;

4) Fermentation of inoculated bacterial liquid A: Spray the fermented bacterial liquid A evenly on the crushed stalks and pile them up into a stockpile. The mass ratio of the crushed straw to the fermented bacterial liquid A is 1:1.5; keep the temperature of the stockpile at Between 35°C (if the temperature is low in winter, cover the stockpile with a film), continue fermentation for 7 days, and obtain stalks that have been inoculated with bacterial solution A and fermented for 7 days;

5) Preparation of the fermentation broth B: take out the bacterial agent B and mix it with water at a mass ratio of 1:40 (so that the bacterial agent B is evenly dispersed in the water) to obtain the fermentation broth B;

6) Fermentation of inoculated bacterial solution B: fully turn over the straw that has been inoculated with bacterial solution A and fermented for 7 days and mix it with fermented bacterial solution B at a mass ratio of 30:1; keep the stockpile temperature between 35°C and continue fermentation for 8 days Days later, the entire fermentation process is over.

It is measured that the degradation rates of cellulose, hemicellulose and lignin in the fermented peanut straw are 50%, 43% and 47% respectively, which shows that the degradation rate of the present invention is high.

Each raw material enumerated in the present invention, and the upper and lower limits of each raw material of the present invention, the interval value, and the upper and lower limits of process parameters (such as temperature, time, etc.), the interval value can realize the present invention, do not enumerate one by one here Example.

Claims (2)

1. process a method for agricultural crop straw, it is characterized in that it comprises the steps:

1) preparation of composite microbial inoculum: this composite microbial inoculum is comprised of A microbial inoculum and B microbial inoculum;

1. by the shared mass percent of each bacterial classification, be: Phanerochaete chrysosporium (Phaerochaete chrysosporium) 28%～38%, variable color bolt bacterium (Trametes versicolor) 5%～10%, flat mushroom bacterium (Pleurorus ostreatus) 6%～12%, Cruise saccharomycete (Canadian krusei) 7～14%, Bacillus subtillis (Bacillus Subtilis) 6%～11% and bacillus licheniformis (Bacillus Licheniformis) 15～25%, choose Phanerochaete chrysosporium (Phaerochaete chrysosporium), variable color bolt bacterium (Trametes versicolor), flat mushroom bacterium (Pleurorus ostreatus), Cruise saccharomycete (Canadian krusei), Bacillus subtillis (Bacillus Subtilis) and bacillus licheniformis (Bacillus Licheniformis), mix, obtain A microbial inoculum,

2. by the shared mass percent of each bacterial classification, be: Trichoderma viride (Trichoderma Viride) 30%～40% and koning trichoderma (Trichoderma koningii) 60%～70%, choose Trichoderma viride (Trichoderma Viride) and koning trichoderma (Trichoderma koningii), mix, obtain B microbial inoculum;

2) pulverizing of stalk: agricultural crop straw is put into pulverizer, be ground into the segment of 1cm～3cm, the stalk after being pulverized;

3) preparation of zymocyte liquid A: A microbial inoculum is taken out and water 1: 100 in mass ratio～200 mix and blends, obtain bacterium liquid; Then in bacterium liquid, add carbonic hydroammonium, stir, obtain zymocyte liquid A; Wherein, the addition of carbonic hydroammonium is 2～3% of bacterium liquid quality;

4) inoculation bacterium liquid A fermentation: zymocyte liquid A is evenly sent forth on the stalk after pulverizing, pile stockpile, the mass ratio of the stalk after pulverizing and zymocyte liquid A is 1: 1～1.5; Keep the temperature of stockpile between 25～35 ℃, continuing fermentation 4～7 days, obtains inoculating the stalk that bacterium liquid A has fermented 4～7 days;

5) preparation of zymocyte liquid B: B microbial inoculum is taken out and water 1: 30 in mass ratio～40 mix and blends, obtain zymocyte liquid B;

6) inoculation bacterium liquid B fermentation: by inoculate that stalk that bacterium liquid A fermented 4～7 days stirs and with zymocyte liquid B in mass ratio 19～30: 1 mixes; Keep stockpile temperature between 25～35 ℃, continuing fermentation is after 5～8 days, and whole sweat finishes.

2. a kind of method of processing agricultural crop straw according to claim 1, it is characterized in that: described agricultural crop straw is the mixing of any one or any two or more in rape stalk, cotton stalk, sesame stalk, peanut stalk, rice straw, Wheat Straw, maize straw, beanstalk stalk, broomcorn straw, is any proportioning during any two above mixing.