CN105110840A - Straw decomposition method using Lactobacillus acidophilus decomposition accelerator, and applications thereof in saline-alkali soil improvement - Google Patents
Straw decomposition method using Lactobacillus acidophilus decomposition accelerator, and applications thereof in saline-alkali soil improvement Download PDFInfo
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- CN105110840A CN105110840A CN201510438830.7A CN201510438830A CN105110840A CN 105110840 A CN105110840 A CN 105110840A CN 201510438830 A CN201510438830 A CN 201510438830A CN 105110840 A CN105110840 A CN 105110840A
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- lactobacterium acidophilum
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
Abstract
The invention provides a straw decomposition method using Lactobacillus acidophilus decomposition accelerator. The straw decomposition method comprises a step of adding of the Lactobacillus acidophilus decomposition accelerator. The Lactobacillus acidophilus decomposition accelerator is prepared from, by mass, 3 to 5 parts of a composite microbial inoculums, 8 to 15 parts of cortex albiziae, 7 to 18 parts of chrysanthemum powder, 6 to 20 parts of Scenedesmus armatus, and 2 to 6 parts of beer yeast powder. When straw decomposition is carried out via the straw decomposition method, straw charcoal mineralization rate ranges from 17.65 to 19.4%, C/N ratio after composting ranges from 16.0 to 14.5, T value ranges for 0.48 to 0.53. The invention also provides applications of the straw decomposition method in saline-alkali soil improvement, six months later, salt content of soil layer in 10 to 30cm depth ranges from 0.21 to 0.32%, soil pH value ranges from 6.8 to 7.2, soil total nitrogen content ranges from 0.102 to 0.117%, soil air permeability pore rate ranges from 13 to 16%, and soil water capacity ranges from 20 to 26%.
Description
Technical field
The present invention relates to a kind of straw decomposing method and the application in alkaline land soil improvement thereof, be specifically related to a kind of adopt Lactobacterium acidophilum decay agent straw decomposing method and application in alkaline land soil improvement, belong to alkaline land soil improving technology field.
Background technology
The major technique of China's conditioning salt affected soil structure has: the rationally row of filling, farming, macromolecular compound improvement.Reasonable filling row, because of little on the impact of soil water stability granule, thus fundamentally can not solve the bad problem of Soil structure; Farming affects by soil moisture content, and the Soil structure of formation can not be permanent; Macromolecular compound improvement soil amount of application is little, effect is large, but current study limitation of China is in the field test that prepared by macromolecular compound and individual molecule compound affects Soil structure, plant growth, not yet form product, thus macromolecular compound does not also play due effect in China's mid and low yield soils improvement.Meanwhile, because its production application cost is higher, also further limit in application agriculturally.
Nearly 700,000,000 tons of the whole nation all kinds of stalk year generation, be rich in multiple nutritional components in stalk, straw-returning effectively can improve the soil organism, reduces the soil weight, strengthens the gas permeability of soil and fertilizer conservation water retention capacity.Because stalk is formed primarily of polymer substances such as Mierocrystalline cellulose, hemicellulose, xylogen, and surface exist in a large number siliceous or (with) wax layer, under state of nature, straw decomposing needs for a long time, direct returning to farmland often brings disadvantageous effect to rear stubble continuous cropping, based on this, research and development promote that the biological decay method of stalk quick composting is significant.
Existing straw decomposition method and the application in alkaline land soil improvement thereof, have the following disadvantages:
(1) existing straw decomposition method, straw carbon mineralization rate is low.
(2) existing straw decomposition method carries out straw decomposition, and in stalk, total nitrogen content increases limited.
(3) existing straw decomposition method carries out straw decomposition, and the ratio that compost terminates C/N and the initial C/N of compost is higher, illustrates that straw decomposition is not thorough.
(4) after existing straw decomposing method is applied in alkaline land soil improvement, limited efficiency, the cycle in improvement saltings are long, and reduction soil salt content can not be had simultaneously, reduce soil pH, increase total nitrogen content in soil, improve ventilation property and the water-holding power of soil, the net effect of increasing soil fertility.
Summary of the invention
The present invention is the deficiency solving prior art existence, provides a kind of and adopts the straw decomposing method of Lactobacterium acidophilum decay agent and the application in alkaline land soil improvement thereof, to realize following goal of the invention:
(1) adopt straw decomposing method of the present invention to carry out straw decomposing, decomposition is thorough, and carbon mineralization rate is high;
(2) adopt straw decomposing method of the present invention to carry out straw decomposing, in stalk, total nitrogen content improves 45.2-51.6%;
(3) adopt straw decomposing method of the present invention to carry out straw decomposing, compost terminates ratio≤0.53 of C/N and the initial C/N of compost;
(4) straw decomposing method of the present invention is in alkaline land soil improvement after application, has the effect of good improvement soil, reduces soil salt content, reduce soil pH, increase total nitrogen content in soil, improve ventilation property and the water-holding power of soil, increase soil fertility.
for solving the problems of the technologies described above, by the following technical solutions:
Adopt a straw decomposing method for Lactobacterium acidophilum decay agent, it is characterized in that: comprise and add Lactobacterium acidophilum decay agent, described decay agent, raw material comprise composite fungus agent, Silktree Albizzia Bark, chrysanthemum powder, by first grid algae, beer yeast powder.
Below the further improvement to technique scheme:
Described decay agent, the percent mass ratio of each feed composition is: composite fungus agent 3-5 part, Silktree Albizzia Bark 8-15 part, chrysanthemum powder 7-18 part, by first grid algae 6-20 part, beer yeast powder 2-6 part.
Described composite fungus agent, comprises Lactobacterium acidophilum, roost rose of Sharon pseudomonas, the red bacterium of fixed nitrogen, Bacillus licheniformis.
In described composite fungus agent, the concentration of Lactobacterium acidophilum is 600,000,000 cfu/ml; The concentration of described roost rose of Sharon pseudomonas is 200,000,000 cfu/ml; The concentration of the red bacterium of described fixed nitrogen is 200,000,000 cfu/ml; The concentration of described Bacillus licheniformis is 300,000,000 cfu/ml.
Described beer yeast powder: crude protein content >=45%, crude fat content≤1.5%, water content≤8.0%, yeast thalline number >=12,000,000,000/gram.
Described Silktree Albizzia Bark, moisture content≤10%, total percent of ash≤6%, acid-insoluble ash≤1%.
Described pollen powder of chrysanthemun flower, moisture content≤15%; Described by first grid algae, moisture content≤16%.
Described straw decomposing method, also comprises and regulates stalk C/N ratio and water content, described adjustment stalk C/N ratio and water content, the weight ratio that 1.5kg urea and water press 1: 10 is dissolved, is evenly sprayed on stalk, regulates C/N ratio to 30:1; Stalk water content is regulated to reach 65%.
Adopt the application of the straw decomposing method of Lactobacterium acidophilum decay agent in alkaline land soil improvement, the amount of application of the stalk after becoming thoroughly decomposed in saltings is 300 kgs/acre.
adopt above technical scheme, beneficial effect of the present invention is:
(1) adopt straw decomposing method of the present invention to carry out straw decomposing, decomposition is thorough, and carbon mineralization rate is 17.65-19.4%.
(2) adopt straw decomposing method of the present invention to carry out straw decomposing, in stalk, total nitrogen content improves 45.2-51.6%.
(3) adopt straw decomposing method of the present invention to carry out straw decomposing, the C/N at the end of compost is than being 16.0-14.5, and the ratio that compost terminates C/N and the initial C/N of compost is 0.48-0.53.
(4) after straw decomposing method of the present invention is applied in alkaline land soil improvement, there is the effect of good improvement soil, improve after 6 months, 0-30cm soil layer saltiness is 0.21-0.32%, and soil pH is 6.8-7.2, in soil, total nitrogen content is 0.102-0.117%, the ventilative hole of soil is 13-16%, and water capacity is 20-26%, and in soil, water-stable granular structure improves 52.4-63.7%, in soil, effective potassium content improves 50-59%, and in soil, available phosphorus content improves 60-75%.
Embodiment
Below the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.
embodiment 1 one kinds adopts the straw decomposing method of Lactobacterium acidophilum decay agent
(1) crushing straw
The paddy dried and highland barley stalk special machinery are crushed to 2-3mm particulate matter.
(2) stalk C/N ratio and water content is regulated
1.5kg urea (containing N46.4%) and the weight ratio that water presses 1: 10 are dissolved, is evenly sprayed on stalk, regulate C/N ratio to 30:1; Evenly spray the water through sterilizing to stalk, regulate stalk water content to reach 65%.
(3) stalk is stacked
Straw powder minces point four layers of composting, and layer anharmonic ratio example is from bottom to top 3: 2: 1: 1.
(4) Lactobacterium acidophilum decay agent is added
At stalk between layers, the superiors evenly add Lactobacterium acidophilum decomposing agent prepared by the present invention, decomposing agent is by heavy 0.47% the adding of stalk layer.
(5) ferment
Use covered rearing with plastic film mixture, fermentation 2-3 days, when piling rotten thing temperature and reaching 65 DEG C, carry out first time turning, ferment again after cooling, in order to avoid destroy active substance, every other day turn over once afterwards, until after the 4th time, every turning in four to five days once, until pile rotten thing color to become chocolate, slightly musty, odorless, pile rotten material in loose crumb structure, pH is 4.0-4.5, namely become thoroughly decomposed complete, obtained straw decomposing thing.
lactobacterium acidophilum decay agent described in step (4), the mass ratio of each feed composition is:
Composite fungus agent 3 parts, Silktree Albizzia Bark 8 parts, pollen powder of chrysanthemun flower 7 parts, by 6 parts, first grid algae, beer yeast powder 2 parts.
Described composite fungus agent is liquid bacteria suspension, comprises Lactobacterium acidophilum, roost rose of Sharon pseudomonas, the red bacterium of fixed nitrogen, Bacillus licheniformis; Wherein the concentration of Lactobacterium acidophilum is 600,000,000 cfu/ml, and the concentration of roost rose of Sharon pseudomonas is 200,000,000 cfu/ml, and the concentration of the red bacterium of fixed nitrogen is 200,000,000 cfu/ml, and the concentration of Bacillus licheniformis is 300,000,000 cfu/ml.
Described Lactobacterium acidophilum (
lactobacillusacidophilus), culture presevation number is ACCC11073; Described roost rose of Sharon pseudomonas (
pseudomonashibiscicola), culture presevation number is ACCC02796; The red bacterium of described fixed nitrogen (
rhodobacterazotoformans), culture presevation number is CCREMSDMCC150007; Described Bacillus licheniformis (
bacilluslicheniformis), culture presevation number is ACCC02002.
Described beer yeast powder: crude protein content >=45%, crude fat content≤1.5%, water content≤8.0%, yeast thalline number >=12,000,000,000/gram;
Described Silktree Albizzia Bark, moisture content≤10%, total percent of ash≤6%, acid-insoluble ash≤1%;
Described pollen powder of chrysanthemun flower, moisture content≤15%.
Described by first grid algae, moisture content≤16%.
lactobacterium acidophilum decay agent described in step (4), preparation method is:
A, prepare composite fungus agent
By Lactobacterium acidophilum, roost rose of Sharon pseudomonas, the red bacterium of fixed nitrogen, each bacterial classification of Bacillus licheniformis, carry out enlarged culturing respectively, then mix, prepare composite fungus agent bacteria suspension, wherein the concentration of Lactobacterium acidophilum is 600,000,000 cfu/ml, the concentration of roost rose of Sharon pseudomonas is 200,000,000 cfu/ml, and the concentration of the red bacterium of fixed nitrogen is 200,000,000 cfu/ml, and the concentration of Bacillus licheniformis is 300,000,000 cfu/ml.
B, pulverizing and mixing
By Silktree Albizzia Bark, being pulverized by first grid algae, be 200um, and pollen powder of chrysanthemun flower, beer yeast powder mixes to size.
C, sprinkling composite fungus agent
The composite fungus agent bacteria suspension prepared by step a, is evenly sprayed on the product of step b, mixes, obtained Lactobacterium acidophilum decay agent of the present invention.
embodiment 2 one kinds adopts the straw decomposing method of Lactobacterium acidophilum decay agent
Adopt the straw decomposing method described in embodiment 1, only change the formula of Lactobacterium acidophilum decay agent, decay agent described in the present embodiment, the mass ratio of each feed composition is:
Composite fungus agent 4 parts, Silktree Albizzia Bark 12 parts, pollen powder of chrysanthemun flower 15 parts, by 14 parts, first grid algae, beer yeast powder 3 parts.
embodiment 3 one kinds adopts the straw decomposing method of Lactobacterium acidophilum decay agent
Adopt the straw decomposing method described in embodiment 1, only change the formula of Lactobacterium acidophilum decay agent, decay agent described in the present embodiment, the mass ratio of each feed composition is:
Composite fungus agent 5 parts, Silktree Albizzia Bark 15 parts, pollen powder of chrysanthemun flower 18 parts, by 20 parts, first grid algae, beer yeast powder 6 parts.
the application of embodiment 4 in alkaline land soil improvement
(1) saltings is selected
Alkaline land soil is clayed soil, and select 0-30cm soil layer saltiness to be 1.5-1.8%, soil pH is 8.0-8.2, and in soil, total nitrogen content is 0.023-0.026%, and the ventilative hole of soil is 3-5%, and water capacity is 5-6%.
(2) to become thoroughly decomposed the using of stalk
Straw decomposing method of the present invention for employing is carried out the rear stalk of process that becomes thoroughly decomposed, be evenly sprinkled into saltings, amount of application is 300 kgs/acre, then carries out ploughing deeply soil, and alkaline land soil is fully mixed with the stalk that becomes thoroughly decomposed.
(3) irrigate
After applying the stalk that becomes thoroughly decomposed, adopt fresh water once to irrigate, irrigation volume is 300m3/ hectare, adopts salt water afterwards, the mode of fresh water rotation flow irrigates, and salt water, fresh water rotation flow number of times are than being 1:4, within every 7-10 days, irrigate once, each irrigation volume is 300-400m3/ hectare.
test-results:
(1) straw decomposing method of the present invention is adopted to carry out straw decomposing, in stalk, organic substance palliating degradation degree is high, decomposition is thorough, decomposed period is 45 days, carbon mineralization rate reaches 17.65-19.4%, and in stalk, total nitrogen content improves 45.2-51.6%, and the C/N at the end of compost is than being 16.0-14.5, T=(compost terminates C/N)/(the initial C/N of compost) be 0.48-0.53, specifically in table 1.
Table 1 straw decomposing method of the present invention carries out the effectiveness indicator of straw decomposing
(2) straw decomposing method of the present invention application in alkaline land soil improvement, after 6 months, alkaline land soil is effectively improved, and 0-30cm soil layer saltiness is 0.21-0.32%, and soil pH is 6.8-7.2, in soil, total nitrogen content is 0.102-0.117%, the ventilative hole of soil is 13-16%, and water capacity is 20-26%, and in soil, water-stable granular structure improves 52.4-63.7%, in soil, effective potassium content improves 50-59%, and in soil, available phosphorus content improves 60-75%.Specific targets are in table 2.
Index after the improvement of table 2 alkaline land soil
Above-mentioned on the saltings of improvement, plantation wheat, volume increase 16.8-17.9%, the ripening stage on average shifts to an earlier date 7-8 days.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment to invention has been detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. adopt a straw decomposing method for Lactobacterium acidophilum decay agent, it is characterized in that: comprise and add Lactobacterium acidophilum decay agent, described decay agent, raw material comprise composite fungus agent, Silktree Albizzia Bark, chrysanthemum powder, by first grid algae, beer yeast powder.
2. a kind of straw decomposing method adopting Lactobacterium acidophilum decay agent according to claim 1, it is characterized in that: described decay agent, the percent mass ratio of each feed composition is: composite fungus agent 3-5 part, Silktree Albizzia Bark 8-15 part, chrysanthemum powder 7-18 part, by first grid algae 6-20 part, beer yeast powder 2-6 part.
3. a kind of straw decomposing method adopting Lactobacterium acidophilum decay agent according to claim 2, is characterized in that: described composite fungus agent, comprises Lactobacterium acidophilum, roost rose of Sharon pseudomonas, the red bacterium of fixed nitrogen, Bacillus licheniformis.
4. a kind of straw decomposing method adopting Lactobacterium acidophilum decay agent according to claim 3, is characterized in that: in described composite fungus agent, and the concentration of Lactobacterium acidophilum is 600,000,000 cfu/ml; The concentration of described roost rose of Sharon pseudomonas is 200,000,000 cfu/ml; The concentration of the red bacterium of described fixed nitrogen is 200,000,000 cfu/ml; The concentration of described Bacillus licheniformis is 300,000,000 cfu/ml.
5. a kind of straw decomposing method adopting Lactobacterium acidophilum decay agent according to claim 2, is characterized in that: described beer yeast powder: crude protein content >=45%, crude fat content≤1.5%, water content≤8.0%, yeast thalline number >=12,000,000,000/gram.
6. a kind of straw decomposing method adopting Lactobacterium acidophilum decay agent according to claim 2, is characterized in that: described Silktree Albizzia Bark, moisture content≤10%, total percent of ash≤6%, acid-insoluble ash≤1%.
7. a kind of straw decomposing method adopting Lactobacterium acidophilum decay agent according to claim 2, is characterized in that: described pollen powder of chrysanthemun flower, moisture content≤15%; Described by first grid algae, moisture content≤16%.
8. a kind of straw decomposing method adopting Lactobacterium acidophilum decay agent according to claim 1, it is characterized in that: also comprise and regulate stalk C/N ratio and water content, described adjustment stalk C/N ratio and water content, the weight ratio that 1.5kg urea and water press 1: 10 is dissolved, evenly be sprayed on stalk, regulate C/N ratio to 30:1; Stalk water content is regulated to reach 65%.
9. adopt the application of the straw decomposing method of Lactobacterium acidophilum decay agent in alkaline land soil improvement, it is characterized in that: the amount of application of the stalk after becoming thoroughly decomposed in saltings is 300 kgs/acre.
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Cited By (1)
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