CN102180715A - Straw compost after-ripening accelerator and use method thereof - Google Patents

Abstract

The invention relates to the technical field of straw composting treatment, and in particular provides a straw composting post-ripening accelerator and a use method thereof. The composition of the invention is: 10-20kg of papermaking sludge, 0-10kg of cellulase, 5-10kg of betaine and 2-5kg of arginine. The method of use is: add urotropine regulator, post-ripening accelerator and surfactant at the stage of normal composting from high temperature to low temperature, and compost at normal temperature for 10-15 days. By adopting the invention, the straw cellulose decomposition rate can reach more than 50%, and the use of the composting products on crops has a significant effect of increasing production, and has the effects of improving soil and improving the quality of agricultural products.

Description

A kind of straw compost post-ripening accelerator and its application method

technical field

The invention relates to the technical field of straw composting treatment, and in particular provides a straw composting post-ripening accelerator and a use method thereof.

Background technique

my country is a big country of grain production and also a big country of straw production. Strengthening the comprehensive utilization of crop stalks is a major issue in my country's new stage of agricultural and rural economic development. However, farmers often use incineration to deal with it, and the phenomenon of straw littering is very serious, causing serious waste of resources and exacerbating environmental pollution. Strengthening the research on straw fermentation and utilization technology is a better way to effectively utilize straw resources and meet the needs of sustainable agricultural development.

Due to the slow degradation rate of cellulose, hemicellulose and lignin in the composting process, the traditional composting method is time-consuming, high cost, and not conducive to the preservation of nitrogen nutrients, which has become a major problem in composting technology. Inoculation of cellulolytic bacteria and selection of suitable conditions have become an important technology for straw composting. Since the temperature of the material during the composting process will change from low temperature to high temperature to low temperature, it is difficult for cellulolytic bacteria to survive under high temperature conditions. Existing patents and literature reports often The inoculation of cellulolytic bacteria in the initial stage of composting has a certain effect in the low temperature stage, but the decomposition of cellulose will be greatly affected in the high temperature stage. Therefore, straw composting often takes a long time, and at the same time, the degree of decomposition is not high, and the effect of field use is greatly affected.

Contents of the invention

The present invention aims at the above deficiencies, and provides a post-ripening accelerator for straw composting and its use method, which solves the problem that the cellulose decomposition rate is low and the compost product is difficult to decompose cellulose when the conventional composting method is adopted.

The technical scheme adopted in the present invention is as follows:

A post-ripening accelerator for straw composting, the components of which include: 10-50 kg of papermaking sludge, 0-10 kg of cellulase, 5-10 kg of betaine, and 0-10 kg of arginine.

According to the weight ratio, the components are: 10-20kg of papermaking sludge; 2-6kg of cellulase; 6-8kg of betaine; and 2-5kg of arginine.

A method for using a post-ripening accelerator for straw composting, the method steps comprising:

A. Add 5-20kg of urotropine to each cubic compost, turn the compost and mix well, and place it for 4-5 days;

B. Add 10-50kg of papermaking sludge, 0-10kg of cellulase, 5-10kg of betaine, 0-10kg of arginine, and 5-10kg of surfactant, and the material will be decomposed after 10-15 days.

Step B needs to be carried out under the premise that the temperature of the compost heap satisfying step A is lower than 45°C.

Step B adopts the method of turning over and mixing or adding in layers.

The amount of papermaking sludge added in step B is 10-20 kg, the amount of cellulase is 2-6 kg, the amount of betaine is 6-8 kg, and the amount of arginine is 2-5 kg.

The surfactant is one or two of lecithin, hydroxyethyl cellulose, cyclodextrin and alginic acid.

Compared with the prior art, the present invention has the following technical advantages:

1. A post-ripening accelerator for straw composting of the present invention, the contained substance is non-toxic and harmless, and has the effect of regulating the growth of crops;

2. Compared with conventional composting, the formula involved in the present invention is used when the high temperature of composting turns to low temperature, the main purpose is to promote the decomposition of cellulose in the straw, thereby promoting the composting of the compost.

Using the post-ripening accelerator for straw composting of the present invention, the decomposition rate of straw cellulose can reach more than 50%, and the effect of increasing the yield of the composting product on crops is remarkable, and the post-ripening accelerator for straw composting of the present invention also has the function of improving soil, The effect of improving the quality of agricultural products.

Detailed ways

The following is a further description of a straw compost post-ripening accelerator and its application method according to the present invention in conjunction with specific examples.

Example 1:

Cow dung, peanut bran and corn stalks are used as compost materials, and composted in strips outdoors. Concrete steps and process conditions are as follows:

The corn stalks are air-dried and crushed to less than 5 cm for later use. Fully mix 320kg of cow dung with a moisture content of 80%, 140kg of air-dried crushed corn stalks with a moisture content of 11%, and 40kg of peanut bran with a moisture content of 8%. , covered with plastic film, turned once every 5 days.

When the temperature of the heap drops below 45°C, divide the compost into two equal parts. One of them adds urotropine according to the amount of 10kg/cubic stockpile, turns and mixes the pile, and acts for 4 days; then adds a compost post-ripening accelerator according to 20kg/m3 (according to 10kg of papermaking sludge, 3kg of cellulase, sugar beet Alkali 6kg, arginine 3kg preparation), 5kg/cubic meter add surfactant, fully mix and cover with plastic film. The other part added the same amount of soil with a water content of 50% as a control, mixed well and covered with a plastic film.

After composting, the post-ripening conditions are controlled uniformly, and after 15 days, the materials are decomposed. The measurement results are shown in Table 1.

Compost fertilizer effect test ①: Use mustard as the test material to conduct a pot test. There were 4 treatments in the test, with 12 kg of soil in each pot. The 3 treatments of fertilization were fertilized under equal nutrient conditions. Treatment 1: single application of straw compost (100g compost/pot, nutrient content of N 21.72g/kg, P2O5 24.27/ kg, K2O 27.83g/kg), treatment 2: single application of chemical fertilizers (4.72g of 46% urea, 20.25g of 12% superphosphate, 4.63g of 60% potassium chloride), treatment 3: combined application of both (50g compost + 46% urea 2.36g, 12% superphosphate 10.13g, 60% potassium chloride 2.32g) and no fertilizer control (CK), the yield, soluble sugar and soluble protein and VC content were measured during the harvest period of mustard. The results are shown in Table 2.

Compost fertilizer efficiency test ②: use corn as the test material to conduct a field test. There are 4 treatments in the experiment, treatment 1 is no fertilizer control (ck), treatment 2 is single chemical fertilizer treatment, treatment 3 is market organic fertilizer + chemical fertilizer treatment, and treatment 4 is compost + chemical fertilizer treatment. Among them, the amount of chemical fertilizer used in treatment 2, treatment 3 and treatment 4 was equal, and the weight of compost used in treatment 3 and treatment 4 was equal. Yield, soluble sugar and soluble solids, and VC content were measured at the lettuce harvest stage. The results are shown in Table 3.

Table 1

The result shows: use post-ripening accelerator of compost of the present invention can make the cellulase activity of post-ripening stage of composting improve 20.53 units, the cellulose degradation rate improves 9.86 percentage points, the weight loss rate improves 8.41 percentage points, and the germination potential of compost leaching liquid improves 7.49 units percentage point.

Table 2

table 3

Example 2:

Use pig manure, peanut bran and corn stalks as compost materials, and compost in strips outdoors. Concrete steps and process conditions are as follows:

(1) Air-dry and crush the corn stalks to less than 5 cm for later use. Fully mix 350kg of pig manure with a moisture content of 76%, 130kg of air-dried crushed corn stalks with a moisture content of 11%, and 30kg of peanut bran with a moisture content of 8%. At this time, the moisture content of the compost material is 56.5%. Left and right heights, covered with plastic film, turned once every 5 days.

(2) When the temperature of the heap body drops below 45°C, divide the compost into two equal parts. One of them adds urotropine according to the amount of 10kg/cubic stockpile, turns over and mixes, and acts for 4 days; then adds compost post-ripening accelerator according to 20kg/cubic (by 40 parts of papermaking sludge, 10 parts of cellulase, 10 parts of betaine, 10 parts of arginine (preparation), 5kg/cubic addition of surfactant, fully mixed and covered with plastic film. The same amount of soil with a water content of 50% was added to another part as a control, mixed evenly and covered with a plastic film.

(3) The post-ripening conditions of composting are controlled uniformly, and the materials are decomposed after 15 days. The results are shown in Table 4.

(4) Compost fertilizer effect test ①: Use lettuce as the test material to conduct a pot test. There were 4 treatments in the test, each pot was filled with 12kg of soil, and 3 treatments were fertilized under equal nutrient conditions. Treatment 1: single application of straw compost (100g compost/pot, nutrient content of N 21.72g/kg, P2O5 24.27/kg, K2O 27.83g/kg), treatment 2: single application of chemical fertilizer (46% urea 4.72g, 12% over Calcium phosphate 20.25g, 60% potassium chloride 4.63g) and treatment 3: the combination of both (50g compost+46% urea 2.36g, 12% superphosphate 10.13g, 60% potassium chloride 2.32g) and no fertilizer For the control (CK), yield, soluble sugar and soluble protein, and VC content were measured at the harvest stage of lettuce. The results are shown in Table 5.

(5) Compost fertilizer effect test ②: Lettuce was used as the test material for field test. There are 4 treatments in the experiment, treatment 1 is no fertilizer control (ck), treatment 2 is single chemical fertilizer treatment, treatment 3 is market organic fertilizer + chemical fertilizer treatment, and treatment 4 is compost + chemical fertilizer treatment. Among them, the amount of chemical fertilizer used in treatment 2, treatment 3 and treatment 4 was equal, and the weight of compost used in treatment 3 and treatment 4 was equal. Yield, soluble sugar and soluble protein, and VC content were determined at the lettuce harvest stage. The results are shown in Table 6.

Table 4

The result shows: use post-ripening accelerator of compost of the present invention can make cellulase activity improve 12.8 units in compost post-ripening stage, cellulose degradation rate improves 10.27 percentage points, weight loss rate improves 7.19 percentage points, compost leaching solution germination potential improves 6.55 units percentage point.

table 5

Table 6

In the above-mentioned examples, the cellulose degradation rate (%) is used to represent the effect of reducing the cellulose contained in the compost material after adopting each embodiment, and the cellulase activity (micromole glucose/min gram fresh weight) is used to represent the fiber The higher the cellulose degradation rate and cellulase activity, the stronger the function of decomposing cellulose, and the yield (%), soluble sugar content (% fresh weight), soluble protein (mg/ g) and vitamin C content (mg/100g) represent the effect of applying the compost products involved in the examples on yield and quality.

The embodiments described above are only one of the more preferred specific implementations of the present invention, and the usual changes and replacements performed by those skilled in the art within the scope of the technical solutions of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. a straw compost after-ripening promotor is characterized in that its component is made of following composition: paper mill sludge 10-50kg, cellulase 0～10kg; Trimethyl-glycine 5～10kg; Arginine 0～10kg.

2. a kind of straw compost after-ripening promotor according to claim 1 is characterized in that its component is made of following composition: paper mill sludge 10-20kg; Cellulase 2～6kg; Trimethyl-glycine 6～8kg; Arginase 12～5kg.

3. the using method of a straw compost after-ripening promotor is characterized in that, its method steps comprises:

A, add urotropine 5-20kg in every cube of compost, the turning mixing is placed and is made its compost temperature be lower than 45 ℃;

B, adding paper mill sludge 10-50kg, cellulase 0～10kg; Trimethyl-glycine 5～10kg; Arginine 0～10kg; Tensio-active agent 5-10kg is placed to material and becomes thoroughly decomposed.

4. according to the using method of claim 3 or 4 described a kind of straw compost after-ripening promotor, it is characterized in that wherein step B adopts the method that turning mixing or layering are added.

5. according to the using method of claim 3 or 4 described a kind of straw compost after-ripening promotor, it is characterized in that wherein the paper mill sludge that adds among the step B is 10-20kg, cellulase is 2～6kg, and trimethyl-glycine is 6～8kg, and arginine is 2～5kg.

6. according to the using method of claim 3 or 4 described a kind of straw compost after-ripening promotor, it is characterized in that wherein tensio-active agent is one or both in Yelkin TTS, Natvosol, cyclodextrin, the Lalgine.