CN114303760B - Preparation method of agricultural waste matrix degradable covering plate for replacing mulching film - Google Patents
Preparation method of agricultural waste matrix degradable covering plate for replacing mulching film Download PDFInfo
- Publication number
- CN114303760B CN114303760B CN202210028314.7A CN202210028314A CN114303760B CN 114303760 B CN114303760 B CN 114303760B CN 202210028314 A CN202210028314 A CN 202210028314A CN 114303760 B CN114303760 B CN 114303760B
- Authority
- CN
- China
- Prior art keywords
- parts
- bio
- agricultural waste
- agricultural
- water
- 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
Links
Classifications
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/28—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture specially adapted for farming
Abstract
The invention discloses a preparation method of an agricultural waste matrix degradable covering plate for replacing a mulching film, which relates to the technical field of agricultural mulching films and comprises the following steps: s1: pretreating rice hull raw materials; s11: cleaning impurities from agricultural wastes such as rice hulls and straws, rubbing and crushing, taking screening crushed aggregates, stacking and fermenting, and removing part of siliceous surface; s12: the method comprises the steps of (1) sterilizing the crushed agricultural wastes by using plant diseases and insect pests, and then drying; s2: preparing a bio-based adhesive; the preparation method of the agricultural waste matrix degradable covering plate for replacing the mulching film adopts the bio-based adhesive, so that the covering plate is pollution-free, can be fully degraded, is simple and convenient to prepare, effectively solves the problem of scattering of traditional organic matter coverings, and ensures that the agricultural waste matrix degradable covering plate prepared by the method has excellent physical and mechanical properties, is not easy to break, has good air permeability and has long service life.
Description
Technical Field
The invention relates to the technical field of agricultural mulching films, in particular to a preparation method of an agricultural waste matrix degradable covering plate for replacing a mulching film.
Background
The traditional agricultural plastic mulch residue has serious influence on soil structure, crop growth and ecological environment, and needs to be developed for new environment-friendly full-biodegradation substitute products to solve the white pollution problem of mulch residue. In addition, the long-term use of a large amount of chemical fertilizer can accelerate soil acidification, lead to soil hardening, reduce the number and activity of soil microorganisms and lead to soil malnutrition. The organic covering material is a novel agricultural land covering material formed by taking agricultural and forestry waste as a raw material and crushing or original ecological processing, and has the functions of widely and easily available raw materials, good air permeability, biodegradability, weed growth inhibition, pest and disease prevention, soil structure improvement, soil fertility enhancement, crop growth promotion and the like.
The organic cover is green and low-carbon, is beneficial to improving the value of agricultural and forestry waste and promoting the construction of beautiful villages, has wide popularization and application prospect and economic and ecological value, and is concerned by a plurality of enterprises and researchers. The patent application number 202110781607.8 discloses an organic covering water-based setting curing agent, a preparation method and an application method thereof, and acrylic acid, methacrylate, styrene and the like are adopted to prepare the organic covering with higher adhesive strength. Patent application number 202110781606.3 discloses an organic covering pad and a preparation method thereof, wherein the organic covering pad is prepared by adopting ammonium chloride, calcium carbonate and plant powder through hot press molding. The patent application number 202010340936.4 discloses a method for improving soil by using organic covers for gardens, which adopts nocardia liquid and brown sugar to accelerate the degradation time of the organic covers for garden greening wastes. The patent application number 201510946855.8 is a research on a method for producing an organic covering by using landscaping waste, and the organic covering pad product prepared by crushing, enzymolysis, flame retarding, dyeing, sterilization and disinsection is not easy to rot, is sanitary in package and is easy to store. Patent application number 201711016952.2 discloses a preparation method of an organic covering pad by using pyrolysis oil urea-formaldehyde resin to adhere landscaping waste particles. However, the existing organic covers are mostly used for landscaping, and are rarely used for reporting crops, and the organic covers are mostly scattered paved when being used in a large area, so that loss pollution is easy to cause, and a water channel is blocked. More importantly, the existing organic covering pad is basically prepared by adopting an organic adhesive through hot pressing, the process is complex, the energy consumption is high, the organic adhesive cannot be degraded after being solidified, and secondary pollution is easy to cause.
The output of crop wastes in China is the first in the world, and accounts for 17.3% of the total output of the world. Both straw and rice hulls are typical crop waste, the annual crop straw yield is about 9 hundred million tons and the rice hull yield is about 4500 thousand tons throughout the country. The two are used as agricultural wastes, and the resources are rich, cheap and easy to obtain. However, because crop wastes have rough surfaces, few nutritional ingredients, low added value and small natural bulk density, the crop wastes are unfavorable for recycling and transportation, and are regarded as yellow pollution wastes, a small amount of crop wastes are processed into feeds and activated carbon, and a large amount of crop wastes are not scientifically and reasonably utilized. The main components of crop waste are cellulose, hemicellulose, lignin, silicon dioxide, a small amount of lipid, crude protein and other organic compounds, the silicon dioxide on the surface of rice hulls is distributed in a net shape and mainly plays a role of a framework, and has the effects of moisture resistance, moth resistance, flame retardance and heat preservation and heat insulation on rice, but the interfacial problem caused by biological barriers of siliceous coating surfaces of rice hulls limits the improvement of the structure-performance of the rice hulls during materialization utilization, so that the adhesiveness of the rice hulls is poor, and popularization and utilization of the rice hulls are hindered. At present, the comprehensive utilization rate of agricultural waste resources such as straw, rice husk and the like in China is low, so that not only is the resource wasted, but also huge pressure is brought to the environment. Therefore, the resource and high-value utilization of agricultural wastes such as straw, rice husk and the like are explored, and the method has remarkable social and economic benefits and ecological environmental protection benefits.
In order to promote efficient recycling of agricultural wastes and construction of beautiful villages and promote green agricultural production and low-carbon sustainable development, the invention discloses a method for manufacturing an agricultural waste matrix degradable covering plate.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a preparation method of an agricultural waste matrix degradable covering plate for replacing a mulching film, which solves the problems of plastic mulching film pollution, fertilizer consumption reduction and the like in the prior art.
In order to achieve the above purpose, the invention is realized by the following technical scheme: the preparation method of the agricultural waste matrix degradable covering plate for replacing the mulching film comprises the following steps:
s1: pretreating rice hull raw materials;
s11: cleaning impurities from agricultural wastes such as rice hulls and straws, rubbing and crushing, taking screening crushed aggregates, stacking and fermenting, and removing part of siliceous surface;
s12: the method comprises the steps of (1) sterilizing the crushed agricultural wastes by using plant diseases and insect pests, and then drying;
s2: preparing a bio-based adhesive;
s21: mixing 20-30 parts of soybean meal powder, 5-8 parts of sodium alginate, 5-15 parts of hydroxyethyl cellulose, 3-8 parts of sodium carboxymethyl cellulose and 1-3 parts of ammonium chloride with a proper amount of water according to the weight ratio, adding into a reaction kettle, and starting a stirrer;
s22: adding 20-25 parts of modified edible starch, 10-15 parts of guar gum and xanthan gum (mass ratio is 1:1) and 30-40 parts of polyhydroxy methyl urea into the mixture according to the weight ratio, regulating the pH value to be neutral, stirring for 30min, and discharging;
s3: preparing a bio-based slow control agent;
s31: mixing Aspergillus niger, trichoderma viride and azoospermi bazedoxorum at a mass ratio of 1:1:1 to prepare a compound microorganism;
s32: mixing 60-75 parts of wood particle active carbon, 5-15 parts of water reducer sodium lignin sulfonate, 10-15 parts of composite amino acid raw powder, 3-8 parts of composite microorganism bacteria and water according to the weight ratio, stirring at the speed of 400-500r/min for 30min for discharging by a stirrer, drying the mixture, and crushing to obtain the bio-based slow-control agent capable of realizing slow release of biological bacteria and nutrients;
s4: manufacturing a waste substrate ecological covering pad;
s41: 60-100 parts of pretreated agricultural waste crushed aggregates, 5-50 parts of bio-based adhesive, 5-15 parts of bio-based retarder, 3-5 parts of calcium carbonate powder, 3-5 parts of zeolite powder and a proper amount of water are added into a stirrer, stirred at the speed of 400-500r/min for 30min and discharged;
s42: pouring the materials into a plate making die, paving uniformly, decompressing and stacking according to the set compaction density, cutting the plate according to the actual required size after the plates are dried, and punching to obtain the agricultural waste substrate ecological covering pad.
Optionally, in the step S12, the crushed agricultural waste is dried until the water content is 8-12%, so as to obtain the raw material for the ecological covering mat.
Optionally, in the step S21, the stirrer stirs at a speed of 500-1000r/min, heats to 70-85 ℃, and then cools to 40-50 ℃ after heat preservation for 30 min.
Optionally, the wood particles used in the step S32 are 40-80 meshes in active carbon position, the iodine value is more than or equal to 1000mg/g, and the total water content of the water added to all raw materials is 20-30%.
Optionally, the step S42 adopts the set compaction density and the pressure of 0.5-1.0MPa and cold pressing at normal temperature for 1-5h.
Optionally, the mixture in the step S32 is dried at 45-60 ℃ until the water content is 8-12%.
The invention provides a preparation method of an agricultural waste matrix degradable covering plate for replacing a mulching film, which has the following beneficial effects:
1. the preparation method of the agricultural waste matrix degradable covering plate for replacing the mulching film adopts the bio-based adhesive, so that the covering plate is pollution-free, can be fully degraded, is simple and convenient to prepare, effectively solves the problem of scattering of traditional organic matter coverings, and ensures that the agricultural waste matrix degradable covering plate prepared by the method has excellent physical and mechanical properties, is not easy to break, has good air permeability and has long service life.
2. The preparation method of the agricultural waste matrix degradable covering plate for replacing the mulching film can regulate and control and accelerate matrix degradation by adding the bio-based retarder, can realize that the ecological pad has remarkable heat preservation, ventilation, water saving and weed and pest reduction capabilities, can realize slow release of microorganism bacteria and biological fertilizer, can be fully degraded into organic fertilizer by self-contained bio-based retarder, soil microorganisms and enzymes in 1-2 plant growth periods, provides nutrients for plant growth, improves and activates a soil structure, reduces fertilizer consumption and plastic mulching film pollution, and further meets the requirements of green manufacture and ecological agriculture.
Drawings
FIG. 1 is a flow chart of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Example 1
Referring to fig. 1, the present invention provides a technical solution: the preparation method of the agricultural waste matrix ecological covering pad specifically comprises the following steps:
s1: pretreating rice hull raw materials;
s11: cleaning impurities from agricultural waste rice hulls, kneading and crushing, taking 10-40 mesh screening crushed materials, stacking and fermenting to remove part of siliceous surfaces of the rice hulls and expose fibers in the rice hulls so as to increase the adhesiveness of the rice hulls, and simultaneously, enabling the prepared ecological covering pad to have excellent air permeability;
s12: the rice hull crushed material in the step S11 is subjected to pest and disease damage elimination and drying until the water content is 8-12%, so as to obtain a raw material for the ecological covering mat;
s2: preparing a bio-based adhesive;
s21: mixing 20 parts of soybean meal powder, 5 parts of sodium alginate, 10 parts of hydroxyethyl cellulose, 5 parts of sodium carboxymethyl cellulose and 1 part of ammonium chloride with a proper amount of water according to the weight ratio, adding into a reaction kettle, starting a stirrer, stirring at a speed of 500-1000r/min, heating to 80 ℃, reacting for 50min, and cooling to 40 ℃;
s22: and (3) adding 20 parts of modified edible starch, 10 parts of guar gum and xanthan gum (mass ratio of 1:1) and 40 parts of polyhydroxy methyl urea into the mixture obtained in the step (S21), regulating the pH value to be neutral, stirring for 30min, and discharging to obtain the starch-soybean protein enhanced bio-based adhesive.
S3: preparing a bio-based slow control agent;
s31: mixing Aspergillus niger, trichoderma viride and azoospermi bazedoxorum at a mass ratio of 1:1:1 to prepare a compound microorganism;
s32: according to the weight ratio, 65 parts of wood particle active carbon (40-80 meshes, iodine value is more than or equal to 1000 mg/g), 5 parts of water reducing agent sodium lignin sulfonate, 10 parts of composite amino acid raw powder, 5 parts of composite microorganism bacteria and water are mixed (the total water content of the water added to all raw materials is 20-30%), the raw materials are stirred for 30 minutes at the speed of 400-500r/min by a stirrer, so that the active carbon and the sodium lignin sulfonate fully adsorb the composite amino acid and the microorganism bacteria, and after discharging, the mixture is dried to the water content of 10% at 40 ℃ to obtain the bio-based slow-release agent capable of realizing slow release of the biological bacteria and nutrients;
s4: preparing an agricultural waste matrix ecological covering pad;
s41: adding 100 parts of pretreated rice hull crushed aggregates, 15 parts of bio-based adhesive, 10 parts of bio-based retarder, 3 parts of calcium carbonate powder, 3 parts of zeolite powder and a proper amount of water into a stirrer, stirring at a speed of 400-500r/min for 30min, and discharging;
s42: pouring the mixture into a plate making die, paving uniformly, adopting normal temperature cold pressing for 3 hours under the pressure of 0.7MPa according to the set compaction density, decompressing, stacking, cutting the plate according to the actual required size after the plate is dried, and punching to obtain the agricultural waste matrix ecological covering pad.
Example two
Referring to fig. 1, the present invention provides a technical solution: the preparation method of the agricultural waste matrix ecological covering pad specifically comprises the following steps:
s1: pretreating rice hull raw materials;
s11: cleaning impurities from agricultural waste rice hulls, kneading and crushing, taking 10-40 mesh screening crushed materials, stacking and fermenting to remove part of siliceous surfaces of the rice hulls and expose fibers in the rice hulls so as to increase the adhesiveness of the rice hulls, and simultaneously, enabling the prepared ecological covering pad to have excellent air permeability;
s12: the rice hull crushed material of the S11 is subjected to pest and disease damage elimination and drying until the water content is 8-12%, so as to obtain a raw material for the ecological covering mat;
s2: preparing a bio-based adhesive;
s21: mixing 30 parts of soybean meal powder, 8 parts of sodium alginate, 5 parts of hydroxyethyl cellulose, 5 parts of sodium carboxymethyl cellulose and 1 part of ammonium chloride with a proper amount of water according to the weight ratio, adding into a reaction kettle, starting a stirrer, stirring at a speed of 500-1000r/min, heating to 85 ℃, reacting for 60min, and cooling to 40 ℃;
s22: and (3) adding 25 parts of modified edible starch, 10 parts of guar gum and xanthan gum (mass ratio of 1:1) and 35 parts of polyhydroxy methyl urea into the mixture obtained in the step (S21), regulating the pH value to be neutral, stirring for 30min, and discharging to obtain the starch-soybean protein enhanced bio-based adhesive.
S3: preparing an agricultural waste matrix ecological covering pad;
s31: adding 80 parts of pretreated rice hull crushed aggregates, 20 parts of bio-based adhesive, 5 parts of calcium carbonate powder, 3 parts of zeolite powder and a proper amount of water into a stirrer, stirring at a speed of 400-500r/min for 30min, and discharging;
s32: pouring the mixture into a plate making die, paving uniformly, adopting normal temperature cold pressing for 3 hours under the pressure of 0.6MPa according to the set compaction density, decompressing, stacking, cutting the plate according to the actual required size after the plate is dried, and punching to obtain the agricultural waste matrix ecological covering pad.
This embodiment differs from embodiment 1 in that: the prepared agricultural waste matrix ecological covering pad is not added with biological-based slow control agent, so that the production cost of the covering pad can be further reduced, and meanwhile, the covering pad still has excellent mechanical property and service life, and can also realize full degradation.
Example III
Referring to fig. 1, the present invention provides a technical solution: the preparation method of the agricultural waste matrix ecological covering pad specifically comprises the following steps:
s1: pretreating rice hull raw materials;
s11: cleaning impurities from agricultural waste rice hulls, kneading and crushing, taking 10-40 mesh screening crushed materials, stacking and fermenting to remove part of siliceous surfaces of the rice hulls and expose fibers in the rice hulls so as to increase the adhesiveness of the rice hulls, and simultaneously, enabling the prepared ecological covering pad to have excellent air permeability;
s12: the rice hull crushed material of the S11 is subjected to pest and disease damage elimination and drying until the water content is 8-12%, so as to obtain a raw material for the ecological covering mat;
s2: preparing a bio-based adhesive;
s21: mixing 20 parts of soybean meal powder, 5 parts of sodium alginate, 10 parts of hydroxyethyl cellulose, 5 parts of sodium carboxymethyl cellulose and 1 part of ammonium chloride with a proper amount of water according to the weight ratio, adding into a reaction kettle, starting a stirrer, stirring at a speed of 500-1000r/min, heating to 80 ℃, reacting for 50min, and cooling to 40 ℃;
s22: adding 20 parts of modified edible starch, 10 parts of guar gum and xanthan gum (mass ratio of 1:1) and 40 parts of polyhydroxy methyl urea into the mixture obtained in the step S21 according to the weight ratio, regulating the pH value to be neutral, stirring for 30min, and discharging to obtain a starch-soybean protein enhanced bio-based adhesive;
s3: preparing a bio-based slow control agent;
s31: mixing Aspergillus niger, trichoderma viride and azoospermi bazedoxorum at a mass ratio of 1:1:1 to prepare a compound microorganism;
s32: according to the weight ratio, 65 parts of wood particle active carbon (40-80 meshes, iodine value is more than or equal to 1000 mg/g), 5 parts of water reducer sodium lignin sulfonate, 10 parts of composite amino acid raw powder, 5 parts of composite microorganism bacteria and water are mixed (the total water content of the water added to all raw materials is 20-30%), the mixture is stirred for 30 minutes at the speed of 400-500r/min by a stirrer, so that the active carbon and sodium lignin sulfonate fully adsorb the composite amino acid and microorganism bacteria, and after discharging, the mixture is dried at 40 ℃ until the water content is 10%, so that the bio-based slow-release agent capable of realizing slow release of biological bacteria and nutrients is obtained.
S4: preparation of agricultural waste substrate ecological cover pad
S41: 60 parts of non-pretreated rice hulls, 40 parts of pretreated rice hull crushed aggregates, 15 parts of bio-based adhesive, 10 parts of bio-based slow control agent, 3 parts of calcium carbonate powder, 3 parts of zeolite powder and a proper amount of water are added into a stirrer, stirred at the speed of 400-500r/min for 30min and discharged;
s42: pouring the mixture into a plate making die, paving uniformly, adopting normal temperature cold pressing for 3 hours under the pressure of 0.8MPa according to the set compaction density, decompressing, stacking, cutting the plate according to the actual required size after the plate is dried, and punching to obtain the agricultural waste matrix ecological covering pad.
This embodiment differs from embodiment 1 in that: the ecological covering pad of the agricultural waste matrix is prepared by using the original ecological rice hulls and rice hull crushed aggregates as raw materials in the step S41, so that crushing and screening operations can be effectively reduced, the production cost of the covering pad is further reduced, and meanwhile, the prepared ecological covering pad has excellent air permeability and service life.
Example IV
Referring to fig. 1, the present invention provides a technical solution: the preparation method of the agricultural waste matrix ecological covering pad specifically comprises the following steps:
s1: pretreating a straw raw material;
s11: cleaning the straws of agricultural wastes such as rice, wheat, corn and the like, rubbing and crushing the straws into 1-4cm crushed aggregates, stacking and fermenting the crushed aggregates to remove partial siliceous on the surfaces of the straws and expose fibers in the straws so as to increase the adhesiveness of the straws, and simultaneously, ensuring that the prepared ecological covering pad has excellent air permeability;
s12: the crushed straw materials in the step S11 are subjected to pest and disease damage elimination and drying until the water content is 8-12%, so as to obtain raw materials for the ecological covering mat;
s2: preparing a bio-based adhesive;
s21: mixing 20 parts of soybean meal powder, 5 parts of sodium alginate, 10 parts of hydroxyethyl cellulose, 5 parts of sodium carboxymethyl cellulose and 1 part of ammonium chloride with a proper amount of water according to the weight ratio, adding into a reaction kettle, starting a stirrer, stirring at a speed of 500-1000r/min, heating to 80 ℃, reacting for 50min, and cooling to 40 ℃;
s22: adding 20 parts of modified edible starch, 10 parts of guar gum and xanthan gum (mass ratio of 1:1) and 40 parts of polyhydroxy methyl urea into the mixture obtained in the step S21 according to the weight ratio, regulating the pH value to be neutral, stirring for 30min, and discharging to obtain a starch-soybean protein enhanced bio-based adhesive;
s3: preparing a bio-based slow control agent;
s31: mixing Aspergillus niger, trichoderma viride and azoospermi bazedoxorum at a mass ratio of 1:1:1 to prepare a compound microorganism;
s32: according to the weight ratio, 65 parts of wood particle active carbon (40-80 meshes, iodine value is more than or equal to 1000 mg/g), 5 parts of water reducing agent sodium lignin sulfonate, 10 parts of composite amino acid raw powder, 5 parts of composite microorganism bacteria and water are mixed (the total water content of the water added to all raw materials is 20-30%), the raw materials are stirred for 30 minutes at the speed of 400-500r/min by a stirrer, so that the active carbon and the sodium lignin sulfonate fully adsorb the composite amino acid and the microorganism bacteria, and after discharging, the mixture is dried to the water content of 10% at 40 ℃ to obtain the bio-based slow-release agent capable of realizing slow release of the biological bacteria and nutrients;
s4: preparing an agricultural waste matrix ecological covering pad;
s41: adding 100 parts of pretreated straw crushed aggregates, 15 parts of bio-based adhesive, 8 parts of bio-based retarder, 3 parts of calcium carbonate powder, 3 parts of zeolite powder and a proper amount of water into a stirrer, stirring at a speed of 400-500r/min for 30min, and discharging;
s42: pouring the mixture into a plate making die, paving uniformly, adopting normal temperature cold pressing for 2 hours under the pressure of 0.7MPa according to the set compaction density, decompressing, stacking, cutting the plate according to the actual required size after the plate is dried, and punching to obtain the agricultural waste matrix ecological covering pad.
This embodiment differs from embodiment 1 in that: the prepared agricultural waste matrix ecological cover mat is in S41: the step uses the crushed straw materials as raw materials, thereby expanding the sources of the raw materials, reducing crushing and screening operations, further reducing the production cost of the covering pad, and simultaneously ensuring that the prepared ecological covering pad has excellent air permeability and service life.
Example five
Referring to fig. 1, the present invention provides a technical solution: the preparation method of the agricultural waste matrix ecological covering pad specifically comprises the following steps:
s1: pretreating corn pulp raw materials;
s11: cleaning impurities from agricultural waste corn pulp, rubbing and crushing into 0.15-1cm particle crushed aggregates so as to increase the adhesiveness of straw, and simultaneously, enabling the prepared ecological covering pad to have excellent air permeability;
s12: the corn pulp crushed aggregates in the step S11 are subjected to pest and disease damage elimination and drying until the water content is 8-12%, so as to obtain raw materials for the ecological covering pad;
s2: preparing a bio-based adhesive;
s21: mixing 20 parts of soybean meal powder, 5 parts of sodium alginate, 10 parts of hydroxyethyl cellulose, 5 parts of sodium carboxymethyl cellulose and 1 part of ammonium chloride with a proper amount of water according to the weight ratio, adding into a reaction kettle, starting a stirrer, stirring at a speed of 500-1000r/min, heating to 80 ℃, reacting for 50min, and cooling to 40 ℃;
s22: adding 20 parts of modified edible starch, 10 parts of guar gum and xanthan gum (mass ratio of 1:1) and 40 parts of polyhydroxy methyl urea into the mixture obtained in the step S21 according to the weight ratio, regulating the pH value to be neutral, stirring for 30min, and discharging to obtain a starch-soybean protein enhanced bio-based adhesive;
s3: preparing a bio-based slow control agent;
s31: mixing Aspergillus niger, trichoderma viride and azoospermi bazedoxorum at a mass ratio of 1:1:1 to prepare a compound microorganism;
s32: according to the weight ratio, 65 parts of wood particle active carbon (40-80 meshes, iodine value is more than or equal to 1000 mg/g), 5 parts of water reducing agent sodium lignin sulfonate, 10 parts of composite amino acid raw powder, 5 parts of composite microorganism bacteria and water are mixed (the total water content of the water added to all raw materials is 20-30%), the raw materials are stirred for 30 minutes at the speed of 400-500r/min by a stirrer, so that the active carbon and the sodium lignin sulfonate fully adsorb the composite amino acid and the microorganism bacteria, and after discharging, the mixture is dried to the water content of 10% at 40 ℃ to obtain the bio-based slow-release agent capable of realizing slow release of the biological bacteria and nutrients;
s4: preparing an agricultural waste matrix ecological covering pad;
s41: adding 100 parts of pretreated corn pulp crushed aggregates, 10 parts of bio-based adhesive, 10 parts of bio-based retarder, 3 parts of calcium carbonate powder, 3 parts of zeolite powder and a proper amount of water into a stirrer, stirring at a speed of 400-500r/min for 30min, and discharging;
s42: pouring the mixture into a plate making die, paving uniformly, adopting normal temperature cold pressing for 2.5 hours under the pressure of 0.8MPa according to the set compaction density, decompressing, stacking, cutting the plate according to the actual required size after the plate is dried, and punching to obtain the agricultural waste substrate ecological covering pad.
This embodiment differs from embodiment 1 in that: the prepared agricultural waste matrix ecological cover mat is in S41: the corn pulp crushed aggregates are used as raw materials, so that the source of the raw materials is enlarged, crushing and screening operations can be reduced, the amount of bio-based adhesive is reduced, the production cost of the covering pad is further reduced, and meanwhile, the prepared ecological covering pad has excellent air permeability and service life.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (5)
1. A preparation method of an agricultural waste matrix degradable covering plate for replacing a mulching film is characterized by comprising the following steps of: the method comprises the following steps:
s1: pretreating rice hull raw materials;
s11: cleaning impurities from rice hull agricultural waste, rubbing and crushing the rice hull agricultural waste into 10-40 meshes, taking screening crushed aggregates, stacking and fermenting the crushed aggregates, and removing part of siliceous surface;
s12: the method comprises the steps of (1) sterilizing the crushed agricultural wastes by using plant diseases and insect pests, and then drying until the water content is 8-12%;
s2: preparing a bio-based adhesive;
s21: mixing 20-30 parts of soybean meal powder, 5-8 parts of sodium alginate, 5-15 parts of hydroxyethyl cellulose, 3-8 parts of sodium carboxymethyl cellulose and 1-3 parts of ammonium chloride with a proper amount of water according to the weight ratio, adding into a reaction kettle, starting a stirrer, stirring at a speed of 500-1000r/min, heating to 70-85 ℃, preserving heat for 30min, and then cooling to 40-50 ℃;
s22: adding 20-25 parts of modified edible starch, 10-15 parts of guar gum and 30-40 parts of polyhydroxy methyl urea in a mass ratio of 1:1 into the mixture, regulating the pH value to be neutral, stirring for 30min, and discharging;
s3: preparing a bio-based slow control agent;
s31: mixing Aspergillus niger, trichoderma viride and azoospermi bazedoxorum at a mass ratio of 1:1:1 to prepare a compound microorganism;
s32: mixing 60-75 parts of wood particle active carbon, 5-15 parts of water reducer sodium lignin sulfonate, 10-15 parts of composite amino acid raw powder, 3-8 parts of composite microorganism bacteria and water according to the weight ratio, stirring at the speed of 400-500r/min for 30min for discharging by a stirrer, drying the mixture, and crushing to obtain the bio-based slow-control agent capable of realizing slow release of biological bacteria and nutrients; wherein, the iodine value of the wood particle active carbon is more than or equal to 1000mg/g, and the total water content of the water added to all raw materials is 20-30%;
s4: manufacturing a waste substrate ecological covering pad;
s41: 60-100 parts of pretreated agricultural waste crushed aggregates, 5-50 parts of bio-based adhesive, 5-15 parts of bio-based retarder, 3-5 parts of calcium carbonate powder, 3-5 parts of zeolite powder and a proper amount of water are added into a stirrer, stirred at the speed of 400-500r/min for 30min and discharged;
s42: pouring the materials into a plate making die, paving uniformly, setting compaction density to be 0.5-1.0MPa, cold pressing for 1-5h at normal temperature, decompressing, stacking, cutting the plates according to the actual required size after the plates are dried, and punching to obtain the agricultural waste matrix ecological covering pad.
2. The method for preparing the agricultural waste matrix degradable covering plate replacing mulching film according to claim 1, which is characterized in that:
in the step S22: and (3) adding 20 parts of modified edible starch, 10 parts of guar gum and 40 parts of polyhydroxy methyl urea in a mass ratio of 1:1 into the mixture obtained in the step (S21), regulating the pH value to be neutral, stirring for 30min, and discharging to obtain the starch-soybean protein enhanced bio-based adhesive.
3. The method for preparing the agricultural waste matrix degradable covering plate replacing mulching film according to claim 1, which is characterized in that:
in the step S32: according to the weight ratio, 65 parts of wood particle active carbon with the iodine value of more than or equal to 1000mg/g, 5 parts of water reducing agent sodium lignin sulfonate, 10 parts of composite amino acid raw powder, 5 parts of composite microorganism bacteria and water are mixed, the total water content of all raw materials is 20-30%, the raw materials are stirred for 30min at the speed of 400-500r/min by a stirrer, the active carbon and the sodium lignin sulfonate fully adsorb the composite amino acid and the microorganism bacteria, and after discharging, the mixture is dried to the water content of 10% at the temperature of 40 ℃ to obtain the bio-based slow-release agent capable of realizing slow release of the biological bacteria and nutrients.
4. The method for preparing the agricultural waste matrix degradable covering plate replacing mulching film according to claim 1, which is characterized in that:
in the step S41: adding 100 parts of pretreated rice hull crushed aggregates, 15 parts of bio-based adhesive, 10 parts of bio-based retarder, 3 parts of calcium carbonate powder, 3 parts of zeolite powder and a proper amount of water into a stirrer, stirring at a speed of 400-500r/min for 30min, and discharging.
5. The method for preparing the agricultural waste matrix degradable covering plate replacing mulching film according to claim 1, which is characterized in that:
in the step S42: pouring the mixture into a plate making die, paving uniformly, adopting normal temperature cold pressing for 3 hours under the pressure of 0.7MPa according to the set compaction density, decompressing, stacking, cutting the plate according to the actual required size after the plate is dried, and punching to obtain the agricultural waste matrix ecological covering pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210028314.7A CN114303760B (en) | 2022-01-11 | 2022-01-11 | Preparation method of agricultural waste matrix degradable covering plate for replacing mulching film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210028314.7A CN114303760B (en) | 2022-01-11 | 2022-01-11 | Preparation method of agricultural waste matrix degradable covering plate for replacing mulching film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114303760A CN114303760A (en) | 2022-04-12 |
| CN114303760B true CN114303760B (en) | 2023-09-05 |
Family
ID=81026571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210028314.7A Active CN114303760B (en) | 2022-01-11 | 2022-01-11 | Preparation method of agricultural waste matrix degradable covering plate for replacing mulching film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114303760B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1669753A (en) * | 2005-04-04 | 2005-09-21 | 上海康拜环保科技有限公司 | Desiliconizing treatment method for paddy stalk |
| CN105052633A (en) * | 2015-07-09 | 2015-11-18 | 湘潭怡达荣耀工程材料有限公司 | Agricultural forestry ecology tending pad and preparation method thereof |
| CN106962079A (en) * | 2017-04-06 | 2017-07-21 | 河北省林业科学研究院 | Preserve soil moisture anti-careless ecological pad and preparation method thereof |
| CN107322957A (en) * | 2017-07-05 | 2017-11-07 | 长沙天闰电子商务有限公司 | A kind of soil cover layer containing enhancing structure |
| CN108575470A (en) * | 2018-06-27 | 2018-09-28 | 重庆盛方新材料科技有限公司 | Plant training pad and preparation method thereof |
| CN109096786A (en) * | 2018-08-23 | 2018-12-28 | 中国热带农业科学院农产品加工研究所 | A kind of degradable composite mulching film and preparation method thereof |
| CN109135313A (en) * | 2018-08-30 | 2019-01-04 | 江苏省农业科学院 | A kind of suppression straw biologic matter base degradative plastic film and application |
| CN110249877A (en) * | 2019-07-25 | 2019-09-20 | 南宁新科健生物技术有限公司 | A kind of control grass ecological plastic film that organic plantation uses and its preparation and application |
| CN111019844A (en) * | 2020-01-11 | 2020-04-17 | 济南航晨生物科技有限公司 | Special compound microbial fertilizer for promoting growth of wheat |
| CN111040210A (en) * | 2019-11-15 | 2020-04-21 | 陕西山河生物科技有限公司 | Method for producing mulching film by using crop straws and mulching film |
-
2022
- 2022-01-11 CN CN202210028314.7A patent/CN114303760B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1669753A (en) * | 2005-04-04 | 2005-09-21 | 上海康拜环保科技有限公司 | Desiliconizing treatment method for paddy stalk |
| CN105052633A (en) * | 2015-07-09 | 2015-11-18 | 湘潭怡达荣耀工程材料有限公司 | Agricultural forestry ecology tending pad and preparation method thereof |
| CN106962079A (en) * | 2017-04-06 | 2017-07-21 | 河北省林业科学研究院 | Preserve soil moisture anti-careless ecological pad and preparation method thereof |
| CN107322957A (en) * | 2017-07-05 | 2017-11-07 | 长沙天闰电子商务有限公司 | A kind of soil cover layer containing enhancing structure |
| CN108575470A (en) * | 2018-06-27 | 2018-09-28 | 重庆盛方新材料科技有限公司 | Plant training pad and preparation method thereof |
| CN109096786A (en) * | 2018-08-23 | 2018-12-28 | 中国热带农业科学院农产品加工研究所 | A kind of degradable composite mulching film and preparation method thereof |
| CN109135313A (en) * | 2018-08-30 | 2019-01-04 | 江苏省农业科学院 | A kind of suppression straw biologic matter base degradative plastic film and application |
| CN110249877A (en) * | 2019-07-25 | 2019-09-20 | 南宁新科健生物技术有限公司 | A kind of control grass ecological plastic film that organic plantation uses and its preparation and application |
| CN111040210A (en) * | 2019-11-15 | 2020-04-21 | 陕西山河生物科技有限公司 | Method for producing mulching film by using crop straws and mulching film |
| CN111019844A (en) * | 2020-01-11 | 2020-04-17 | 济南航晨生物科技有限公司 | Special compound microbial fertilizer for promoting growth of wheat |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114303760A (en) | 2022-04-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104926541B (en) | A kind of production technology of joint wheat bran stalk vinasse seaweed mixed fungus fermentation efficient biologic-organic fertilizer | |
| CN104261917B (en) | A kind of method of rapid fermentation waste edible fungus mushroom bud organic fertilizer | |
| CN106083264A (en) | A kind of recycling wheat stalk prepares the new technology of biological organic fertilizer | |
| CN105622280A (en) | Soil improvement organic biological fertilizer and preparation method thereof | |
| CN101041604A (en) | Melon vegetable grow seedling ground substance | |
| CN104193508B (en) | A kind of preparation method being compounded with type environmental protection seedling culturing substrate block | |
| CN102206123A (en) | Reed residue and cow dung compound organic seedling raising nutrition block and preparation method thereof | |
| CN104140316A (en) | Organic fertilizer capable of improving stress resistance of plants and preparation method of organic fertilizer | |
| CN104140317A (en) | Green and pollution-free organic fertilizer and preparation method thereof | |
| CN104151097A (en) | Multifunctional fruit tree fertilizer and preparation method thereof | |
| CN1273006C (en) | Production method of vegetable stem made pot | |
| CN101524112A (en) | Circulation process of environment-friendly treatment system of feces and the like waste in breeding farm | |
| CN104744086A (en) | Organic chemical fertilizer and preparation method thereof | |
| CN104446876A (en) | Organic fertilizer fermented by using biogas waste residues and preparation method thereof | |
| CN104774047A (en) | Organic cucumber seedling growing matrix and preparation method thereof | |
| CN103183533A (en) | High-efficiency bio-organic fertilizer ZF-30 and preparation method thereof | |
| CN104478541A (en) | A microorganism fertilizer for jujube tree planting and a preparing method thereof | |
| CN114303760B (en) | Preparation method of agricultural waste matrix degradable covering plate for replacing mulching film | |
| CN110342983A (en) | A kind of capsicum organic fertilizer and its production method based on vinasse | |
| CN105330396A (en) | Method for making Lentinus edodes fungus bag by adopting entire corncobs | |
| CN107602054A (en) | A kind of production technology of forming matrix | |
| CN103613413A (en) | Preparation method of Chinese cabbage seedling fertilizer | |
| CN103613445A (en) | Granular bio-fertilizer and preparation method thereof | |
| CN114516764A (en) | Method for preparing bacillus fermentation culture medium by using agricultural and sideline product waste | |
| CN105968864A (en) | Peanut hull plant fiber synthetic resin and preparation technology thereof |
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 |