CN114850193B - Method for controlling degradation speed of agricultural biodegradable mulching film - Google Patents

Method for controlling degradation speed of agricultural biodegradable mulching film Download PDF

Info

Publication number
CN114850193B
CN114850193B CN202210554176.6A CN202210554176A CN114850193B CN 114850193 B CN114850193 B CN 114850193B CN 202210554176 A CN202210554176 A CN 202210554176A CN 114850193 B CN114850193 B CN 114850193B
Authority
CN
China
Prior art keywords
mulching film
spraying
microbial agent
mass concentration
agricultural
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202210554176.6A
Other languages
Chinese (zh)
Other versions
CN114850193A (en
Inventor
张俊丽
索龙
王迁
景鹏娟
王蕊
马青青
董登峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Weinan Agricultural Technology Promotion Center
Original Assignee
Weinan Agricultural Technology Promotion Center
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Weinan Agricultural Technology Promotion Center filed Critical Weinan Agricultural Technology Promotion Center
Priority to CN202210554176.6A priority Critical patent/CN114850193B/en
Publication of CN114850193A publication Critical patent/CN114850193A/en
Application granted granted Critical
Publication of CN114850193B publication Critical patent/CN114850193B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09BDISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00Destroying solid waste or transforming solid waste into something useful or harmless
    • B09B3/60Biochemical treatment, e.g. by using enzymes
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/28Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture specially adapted for farming

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Catching Or Destruction (AREA)
  • Protection Of Plants (AREA)

Abstract

The invention belongs to the technical field of agricultural environmental engineering, and relates to a method for controlling the degradation speed of an agricultural biodegradable mulching film. The method comprises the following steps: spraying wood vinegar on the same day as laying the mulching film, spraying the microbial agent A after 12-96 h, and spraying the sodium alginate solution after 24-60 h, so as to slow down the biodegradation speed of the mulching film; and after the use of the mulching film is finished, clear water is sprayed, the starch solution and the microbial agent B are respectively sprayed after 12-96 hours, and wood powder is sprayed after 24-60 hours, so that the biodegradation speed of the mulching film is accelerated. According to the invention, the biodegradation speed of the mulching film is slowed down or accelerated by adopting a corresponding method according to needs in different periods of the agricultural soil mulching film. The method is convenient to use, strong in operability and harmless to the planting soil environment.

Description

Method for controlling degradation speed of agricultural biodegradable mulching film
Technical Field
The invention belongs to the technical field of agricultural environmental engineering, and relates to a method for controlling the degradation speed of an agricultural biodegradable mulching film.
Background
The mulching film is the fourth agricultural production data of China after seeds, pesticides and chemical fertilizers. The mulching technology is widely applied to agricultural production due to the effects of warming, soil moisture conservation, grass suppression, seedling protection, yield improvement and the like, but the use amount and the service life of the mulching technology climb year by year, and residual mulching enters soil, so that the residual mulching becomes a 'Yuanjian' which reduces the soil permeability, winds tillage machines and tools, hinders the water and fertilizer migration, influences the seedling growth and reduces the crop yield, and the 'Yuanjian' becomes a prominent problem influencing the sustainable development of agriculture. The degradable mulching film has the functions of heat preservation and soil moisture preservation of the common mulching film and can be naturally degraded, so that the agricultural film recycling link is omitted, the labor is saved, and the agricultural production cost is reduced. However, the practical effect of the degradable mulching film is not ideal at present, firstly, the degradable mulching film cannot cover the growth period of crops in the use period, and secondly, the degradable mulching film is slowly degraded after the use period is finished, so that the land utilization efficiency is lowered.
CN109206660B discloses a method for regulating and controlling the degradation speed of a biodegradable mulching film, which takes a biodegradable mulching film used in a field as an implementation object, obtains the degradability of different microorganisms on the degradable mulching film by comparing and screening beneficial microorganisms such as azotobacter, nitrobacteria, saprophytic bacteria and the like in soil, prepares the corresponding microorganisms into a preparation according to the characteristics of the mulching film and the degradation time requirement, and sprays the preparation on the mulching film in a spraying mode to control the degradation speed of the mulching film. However, the technical scheme provided by the document adopts a single microorganism spraying method to control the degradation of the degradable mulching film, and is greatly influenced by environmental factors such as soil weather, and the actual using effect is not ideal.
The biodegradable mulching film is one kind of novel ground covering film, and is used mainly in ground covering to raise soil temperature, maintain soil water, maintain soil structure and prevent pest from invading crop and some microbe caused diseases, so as to promote plant growth. The biodegradable mulching film in the prior art is mostly short in degradation period, when the biodegradable mulching film is applied to crops with a long growth period, the growth period of the crops does not yet exist, and the biodegradable mulching film is firstly broken or loses efficacy due to degradation, so that adverse effects are caused on the growth and harvest of the crops. Therefore, a method for controlling the degradation speed of the agricultural biodegradable mulching film is developed, the biodegradation speed of the agricultural soil mulching film is increased or reduced according to production needs, and the method plays an important role in effectively using the biodegradable mulching film and reducing the pollution of the mulching film to the environment.
Disclosure of Invention
The invention aims to provide a method for controlling the degradation speed of an agricultural biodegradable mulching film, which can improve or slow down the biodegradation speed of an agricultural soil mulching film according to production needs.
Based on the above objects, the present invention provides a method for controlling the degradation rate of an agricultural biodegradable mulch film, comprising: spraying wood vinegar on the same day as laying the mulching film, spraying the microbial agent A after 12-96 h, and spraying the sodium alginate solution after 24-60 h, so as to slow down the biodegradation speed of the mulching film; spraying clear water after the use of the mulching film is finished, spraying a starch solution and a microbial agent B after 12-96 hours, and sprinkling wood powder after 24-60 hours to accelerate the biodegradation speed of the mulching film; the microbial agent A is selected from one of saccharomyces cerevisiae, lactobacillus plantarum and arthrobacter globiformis; the microbial agent B is selected from one of trichoderma koningii, trichoderma viride and aspergillus oryzae.
Further, in the method for controlling the degradation speed of the agricultural biodegradable mulching film, the mass concentration of the pyroligneous acid is 0.5-2%; the concentration of the microbial agent A or the microbial agent B is 1 x 10 8 ~5×10 8 CFU/g; the mass concentration of the sodium alginate solution is 5-10%; the mass concentration of the starch solution is 10-20%.
Further, in the method for controlling the degradation speed of the agricultural biodegradable mulching film, the mass concentration of the pyroligneous acid is 0.5%; the concentration of the microbial agent A or the microbial agent B is 1 multiplied by 10 8 CFU/g; the mass concentration of the sodium alginate solution is 5%; the mass concentration of the starch solution is 10%.
Further, in the method for controlling the degradation speed of the agricultural biodegradable mulching film, the mass concentration of the pyroligneous acid is 1%; the concentration of the microbial agent A or the microbial agent B is 3 multiplied by 10 8 CFU/g; the mass concentration of the sodium alginate solution is 6%; the mass concentration of the starch solution is 12%.
Further, in the method for controlling the degradation speed of the agricultural biodegradable mulching film, the mass concentration of the pyroligneous acid is 2%; the concentration of the microbial agent A or the microbial agent B is 5 multiplied by 10 8 CFU/g; the mass concentration of the sodium alginate solution is 10%; the mass concentration of the starch solution is 20%.
Compared with the prior art, the method for controlling the degradation speed of the agricultural biodegradable mulching film has the following beneficial effects or advantages that:
compared with the prior art, the invention provides a method for controlling the degradation speed of the agricultural biodegradable mulching film. According to verification, the invention sprays the substances with corresponding concentrations at different periods through the matching of various substances, can effectively delay or accelerate the biodegradation speed of the agricultural soil mulching film, can adjust the concentrations and/or the spraying periods of the corresponding substances according to different production requirements, and meets the production and use requirements of the agricultural soil mulching film in agricultural planting.
Detailed Description
The present invention will be further explained with reference to specific embodiments, but the present invention is not limited to the embodiments described below.
Example 1
This example is intended to illustrate the utility of the method of the present invention in retarding or accelerating the rate of biodegradation of agricultural soil mulch.
The black agricultural soil mulching film of Wuhan's furniture source science and technology limited company used in this embodiment comprises the following raw materials: PBAT, PLA and starch.
The moisture conservation performance of the mulching film is evaluated by testing the water vapor transmission rate of the mulching film. Collecting a fresh soil sample, washing, drying, placing in a clean and dry inert container to ensure that the thickness of the inert container is at least 20cm, and paving and filling a mulching film at a position of 10cm of the soil sample. Blank control group: no treatment is done. Test group 1: spraying 0.5% wood vinegar with a concentration of 1 × 10 after 12 hr 8 Spraying 5% sodium alginate solution to the CFU/g Saccharomyces cerevisiae after the Saccharomyces cerevisiae is sprayed for 24 hours; the spraying amount of any one of the agents is 20L/mu by the area of the mulching film. Test group 2: spraying 1% wood vinegar, wherein the spraying concentration of the wood vinegar is 3 multiplied by 10 after 72 hours 8 Spraying 6% sodium alginate solution to the CFU/g lactobacillus plantarum after the lactobacillus plantarum is sprayed for 36 hours; the spraying amount of any one of the agents is 20L/mu by the area of the mulching film. Test group 3: spraying 2% wood vinegar, wherein the spraying concentration of the wood vinegar is 5 multiplied by 10 after 96 hours 8 Spraying 10% sodium alginate solution after spraying CFU/g lactobacillus plantarum for 60 hours; the spraying amount of any one of the agents is 20L/mu by the area of the mulching film. Test group 4: spraying clear water for 12 hr, and spraying 10% starch solution and 1 × 10 starch solution 8 Spraying CFU/g trichoderma koningii, starch solution and trichoderma koningii for 24h, and spraying wood powder;the spraying amount of any one agent is 20L/mu and the sprinkling amount of wood powder is 1 kg/mu by the area of the mulching film. Test group 5: spraying clear water for 72h, and respectively spraying 12% starch solution and 3 × 10 starch solution 8 Spraying CFU/g of trichoderma viride, starch solution and trichoderma viride for 36h, and then spraying wood powder; the spraying amount of any one agent is 20L/mu and the sprinkling amount of wood powder is 1 kg/mu by the area of the mulching film. Test group 6: spraying clear water, spraying 20% starch solution and 5 × 10 starch solution after spraying clear water for 96 hr 8 Spraying CFU/g Aspergillus oryzae, starch solution and Aspergillus oryzae for 60 hr, and sprinkling wood powder; the spraying amount of any one agent is 20L/mu and the sprinkling amount of wood powder is 1 kg/mu by the area of the mulching film. Each set of experiments was repeated in 3 groups. The water vapor transmission rate of the mulching film was measured by using a water vapor transmission rate tester (WPT-304) on day 1, day 20, day 40, day 60, day 80, day 100, day 120, and day 160, respectively, and the test results are shown in table 1.
TABLE 1 Water vapor Transmission Rate of mulch films under different treatments
Figure BDA0003654222220000051
The results in table 1 show that the application of the method for controlling the degradation speed of the agricultural biodegradable mulching film provided by the invention can effectively delay or accelerate the biodegradation speed of the agricultural soil mulching film; comparing the test groups 1-3 with the blank control group, wherein the degradation effect of the test group at 160d is similar to that of the blank control group at 100 d; comparing the test groups 4-6 with the blank control group, it can be seen that the mulching films of the test groups 4-6 are almost completely degraded at the 100 th day, and the blank control group 160d achieves almost complete degradation.
On day 180, changes in microbial activity in the soil were measured and the results are shown in table 2.
TABLE 2 change in soil microbial Activity of mulch films under different treatments
Figure BDA0003654222220000061
As can be seen from Table 2, the surface structure and chemical structure of the agricultural soil mulch film were changed after culturing for 180 days under different treatments. Various microorganisms and corresponding biological enzymes in soil form a biological environment where the biodegradable mulching film is located, and symbiosis exists, namely, a certain step in a degradation link is executed by a specific microorganism, and other microorganisms live on the products of the specific microorganism. Under different microorganisms and treatment modes, the degradation process of the mulching film is obviously influenced. It can be known from the combination of tables 1 and 2 that the variation trend of soil microorganisms and enzyme activity is similar to the variation trend of degradation rate of mulching film under different treatments, which indicates that the difference of soil microorganism activity caused by different treatments may be the main reason of the difference of biodegradation rate of mulching film.
As described above, the present invention can be preferably implemented, and the above-mentioned embodiments are merely descriptions of preferred embodiments of the present invention, and do not limit the scope of the present invention, and various changes and modifications made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention shall fall within the protection scope defined by the present invention.

Claims (6)

1. A method for controlling the degradation speed of an agricultural biodegradable mulching film, which is characterized by comprising the following steps:
spraying wood vinegar on the same day as laying the mulching film, spraying the microbial agent A after 12-96 h, and spraying the sodium alginate solution after 24-60 h, so as to slow down the biodegradation speed of the mulching film;
spraying clear water after the use of the mulching film is finished, spraying a starch solution and a microbial agent B after 12-96 hours, and sprinkling wood powder after 24-60 hours to accelerate the biodegradation speed of the mulching film;
the microbial agent A is selected from one of saccharomyces cerevisiae, lactobacillus plantarum and arthrobacter globiformis; the microbial agent B is selected from one of trichoderma koningii, trichoderma viride and aspergillus oryzae.
2. The method according to claim 1, wherein the mass concentration of the pyroligneous acid is 0.5-2%; the microbial agent A or the microbial bacteriaThe concentration of agent B is 1X 10 8 ~5×10 8 CFU/g; the mass concentration of the sodium alginate solution is 5-10%; the mass concentration of the starch solution is 10-20%.
3. The method according to claim 2, wherein the mass concentration of the pyroligneous acid is 0.5%; the concentration of the microbial agent A or the microbial agent B is 1 multiplied by 10 8 CFU/g; the mass concentration of the sodium alginate solution is 5%; the mass concentration of the starch solution is 10%.
4. The method according to claim 2, wherein the mass concentration of the pyroligneous acid is 1%; the concentration of the microbial agent A or the microbial agent B is 3 multiplied by 10 8 CFU/g; the mass concentration of the sodium alginate solution is 6%; the mass concentration of the starch solution is 12%.
5. The method according to claim 2, wherein the mass concentration of the pyroligneous acid is 2%; the concentration of the microbial agent A or the microbial agent B is 5 multiplied by 10 8 CFU/g; the mass concentration of the sodium alginate solution is 10%; the mass concentration of the starch solution is 20%.
6. Use of the method of any one of claims 1 to 5 for controlling the degradation of biodegradable mulch for agricultural use.
CN202210554176.6A 2022-05-20 2022-05-20 Method for controlling degradation speed of agricultural biodegradable mulching film Active CN114850193B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210554176.6A CN114850193B (en) 2022-05-20 2022-05-20 Method for controlling degradation speed of agricultural biodegradable mulching film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210554176.6A CN114850193B (en) 2022-05-20 2022-05-20 Method for controlling degradation speed of agricultural biodegradable mulching film

Publications (2)

Publication Number Publication Date
CN114850193A CN114850193A (en) 2022-08-05
CN114850193B true CN114850193B (en) 2023-03-14

Family

ID=82640274

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210554176.6A Active CN114850193B (en) 2022-05-20 2022-05-20 Method for controlling degradation speed of agricultural biodegradable mulching film

Country Status (1)

Country Link
CN (1) CN114850193B (en)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007134492A1 (en) * 2006-05-16 2007-11-29 Guangdong Shangjiu Biodegradble Plastics Co., Ltd Fully biodegradable plastic resin, film article made therefrom and method for preparing the same
CN102599030A (en) * 2012-01-19 2012-07-25 北京化工大学 Degradable sludge-based mulching film and preparation method of degradable sludge-based mulching film
JP2012205552A (en) * 2011-03-30 2012-10-25 C I Kasei Co Ltd Biodegradable mulching film
CN106117999A (en) * 2016-07-01 2016-11-16 铜陵方正塑业科技有限公司 A kind of organic nano bentonite modified cyanophyceae base Biocomposite material and preparation method thereof
CN109161059A (en) * 2018-09-14 2019-01-08 蚌埠创特新材料科技有限公司 A kind of complete biological controlled degradation multifunctional agricultural weeding soil moisture conservation mulch
CN109206660A (en) * 2018-08-15 2019-01-15 西北民族大学 A method of regulation Biodegradable mulch degradation speed
CN111621063A (en) * 2020-06-09 2020-09-04 河南功能高分子膜材料创新中心有限公司 Easily degradable humic acid mulching film
CN113072882A (en) * 2021-03-26 2021-07-06 辽宁顺屹农业科技有限公司 Liquid full-degradable mulching film and preparation method thereof
CN113151246A (en) * 2021-02-18 2021-07-23 杭州楠大环保科技有限公司 Perishable garbage degradation microbial inoculum and application thereof
CN113529483A (en) * 2021-06-18 2021-10-22 山西农业大学 Preparation method of slow-release decomposed seedling raising mulching film
KR102326756B1 (en) * 2021-05-20 2021-11-16 최다솜 Biodegradable mulching film using livestock dung and it's manufacturing method

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007134492A1 (en) * 2006-05-16 2007-11-29 Guangdong Shangjiu Biodegradble Plastics Co., Ltd Fully biodegradable plastic resin, film article made therefrom and method for preparing the same
JP2012205552A (en) * 2011-03-30 2012-10-25 C I Kasei Co Ltd Biodegradable mulching film
CN102599030A (en) * 2012-01-19 2012-07-25 北京化工大学 Degradable sludge-based mulching film and preparation method of degradable sludge-based mulching film
CN106117999A (en) * 2016-07-01 2016-11-16 铜陵方正塑业科技有限公司 A kind of organic nano bentonite modified cyanophyceae base Biocomposite material and preparation method thereof
CN109206660A (en) * 2018-08-15 2019-01-15 西北民族大学 A method of regulation Biodegradable mulch degradation speed
CN109161059A (en) * 2018-09-14 2019-01-08 蚌埠创特新材料科技有限公司 A kind of complete biological controlled degradation multifunctional agricultural weeding soil moisture conservation mulch
CN111621063A (en) * 2020-06-09 2020-09-04 河南功能高分子膜材料创新中心有限公司 Easily degradable humic acid mulching film
CN113151246A (en) * 2021-02-18 2021-07-23 杭州楠大环保科技有限公司 Perishable garbage degradation microbial inoculum and application thereof
CN113072882A (en) * 2021-03-26 2021-07-06 辽宁顺屹农业科技有限公司 Liquid full-degradable mulching film and preparation method thereof
KR102326756B1 (en) * 2021-05-20 2021-11-16 최다솜 Biodegradable mulching film using livestock dung and it's manufacturing method
CN113529483A (en) * 2021-06-18 2021-10-22 山西农业大学 Preparation method of slow-release decomposed seedling raising mulching film

Also Published As

Publication number Publication date
CN114850193A (en) 2022-08-05

Similar Documents

Publication Publication Date Title
CN108432596B (en) Disease and insect resistant culture medium based on agricultural wastes and preparation method
CN101712566B (en) Preparation method of soil moisturizing bio-fertilizer
CN109400372B (en) Biochar soil improvement organic fertilizer and preparation method thereof
CN109679860A (en) A kind of composite bacteria agent and the preparation method and application thereof for the processing of gardens green waste
CN112481159B (en) Microbial agent and application thereof
CN109956824B (en) Oil peony organic particle slow-release fertilizer and preparation method thereof
CN108715821B (en) Microbial compound inoculant and preparation method and application thereof
CN106190929B (en) A kind of new strain of Bacillus licheniformis and its application
CN110628675A (en) Straw field-returning decomposition agent and preparation method thereof
CN114230385A (en) Special microbial fertilizer for sweet sorghum in saline-alkali soil and preparation method thereof
CN114982414A (en) Method for improving carbon sequestration potential of soil by using organic fertilizer
CN106938963A (en) Under-film drip irrigation area promotes formula maize straw method
CN111357612B (en) Composite microbial matrix for watermelon planting and preparation method and application thereof
CN110574644B (en) Green planting method for fruit corn
CN110249877B (en) Grass-control ecological mulching film for organic planting and preparation and use methods thereof
CN114850193B (en) Method for controlling degradation speed of agricultural biodegradable mulching film
CN112430163B (en) Biological fertilizer for relieving continuous cropping obstacle of watermelon with pressed sand
CN115491331A (en) Microbial agent for promoting carbon emission reduction of rice straw returning field
CN115368170A (en) Bio-organic fertilizer and preparation method and application thereof
CN112174743A (en) Biological organic fertilizer
CN112979380A (en) Harmless bacteria residue, light and simple harmless treatment method and application
CN107567898B (en) Cellulose-based mulching film and fermentation preparation method thereof
CN111328667A (en) Method for raising seedlings by using camphor pine bark substrate
CN113527001A (en) Lees treatment method, foliar fertilizer, organic fertilizer and preparation method thereof
CN110999743A (en) Planting method for micro-fertilizer high-yield peanuts

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant