CN106497120A - Paper substrate degradable nutrition pot and preparation method - Google Patents
Paper substrate degradable nutrition pot and preparation method Download PDFInfo
- Publication number
- CN106497120A CN106497120A CN201611063053.3A CN201611063053A CN106497120A CN 106497120 A CN106497120 A CN 106497120A CN 201611063053 A CN201611063053 A CN 201611063053A CN 106497120 A CN106497120 A CN 106497120A
- Authority
- CN
- China
- Prior art keywords
- paper
- nutrition pot
- paper substrate
- preparation
- degradable nutrition
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L97/00—Compositions of lignin-containing materials
- C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/60—Apparatus for preparing growth substrates or culture media
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/02—Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
- A01G9/029—Receptacles for seedlings
- A01G9/0291—Planting receptacles specially adapted for remaining in the soil after planting
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/06—Biodegradable
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
A kind of paper substrate degradable nutrition pot and preparation method thereof, by dry mass fraction by paper 20～90%, binder 0～0.5%, agricultural crop straw be surplus.First by crops stalk crushing to 60～100 mesh during preparation；Paper is soaked in water, paper accounts for the 5%～8% of the gross mass of paper and water；Under normal temperature, 10～15min is stirred, stand and make paper pulp；Powder of straw and binder is proportionally added into, and 5～8min is mixed under normal temperature；Will be compressing in raw material slurry suction paper pulp model formation machine；After the demoulding, natural drying 2～5 days, or it is placed in drying paper substrate degradable nutrition pot finished product in convection oven.The nutritive cube of the present invention has light weight, a process is simple, meets insulation, soil moisture conservation, the nursery demand such as degradable, while can solve the problem that the problem of environmental pollution of discarded object, production process is substantially pollution-free, it is easy to industrial production and large-scale promotion application.
Description
Technical field
The invention belongs to novel agricultural degradation material technical field, especially a kind of preparation method of business alms bowl, specifically
Ground say be a kind of take paper and stalk fibre as degradable nutrition pot and the preparation method for mainly preparing material.
Background technology
China's agricultural is used mostly traditional plastic nutrition bowl, although cost is relatively low, but ventilative water permeability is poor, transplants demoulding
Root system is damaged, plant growth is affected, while a large amount of plastic refuses are caused to soil and had a strong impact on, profit after use, is not easily recycled
With, more can not natural degradation, therefore, necessary exploitation Biomass degradable nutrition pot, both played nursery insulation, soil moisture conservation,
Function of fertilizer retention, and with excellent biological degradability, melt water, gas permeability etc..Degradable nourishing is prepared using bio-based materials
Alms bowl, is the new method for solving the problems, such as waste plastic, will greatly reduce " white pollution " that plastic nutrition bowl is caused.
At present, the material for preparing bio-based degradable nutrition pot mainly has：Stalk fibre, paper, starch, peat etc..China
Patent application 201310157059.7 discloses a kind of nutritive cube with stalk as primary raw material, adds wood chip, feces of livestock and poultry and glues
Connect agent to make, the nutritive cube is prepared and need to be fermented, and long preparation period, technique are loaded down with trivial details；Chinese patent application 201120097081.3
A kind of papery nutritive cube is disclosed, the nutritive cube is made up of degradable films and couch board, bowl structure and complicated process of preparation,
It is difficult large-scale promotion application；Chinese patent application 201110450766.6 discloses one kind and prepares nutritive cube using sweet potato starch residue
Method, the nutritive cube monomer mass is heavier, and feed moisture content is higher, need to add a large amount of auxiliary materials, and starch residue utilization rate is low；
Chinese patent application 98119022.7 discloses a kind of series soil-block of compressed peat for cultivating seedlings and preparation method, primary raw material draft mud
Charcoal, adds forming agent, curing agent and trace element etc. and makes, the nutritive cube 40 ~ 100g of monomer weight of preparation, the nutrition pot raw material transport
High cost, bowl heavier mass, in-convenience in use, add chemical composition on the high side, though can degrade, degrade after residual chemicals compared with
Many, it is unfavorable for soil protection.Therefore, there are a lot of urgent need to resolve in the bio-based degradable nutrition pot that invents at present and use.
Content of the invention
The purpose of the present invention is to prepare complicated, cost of material height for existing nutritive cube, using inconvenience and degradation cycle
Long problem, invents a kind of low price, light weight, process is simple, the paper substrate degradable nutrition pot for using easy to spread and its system
Preparation Method, it can meet insulation, soil moisture conservation, the nursery demand such as degradable, while can solve the problem that the problem of environmental pollution of discarded object.
One of technical scheme is：
A kind of paper substrate degradable nutrition pot, it is characterised in that degradable as main bio-based with paper pulp and agricultural crop straw mixture
Raw material, adds a small amount of binder, prepares paper substrate degradable nutrition pot, wherein press dry mass fraction, and raw material components proportioning is：
Paper 20～90%
Binder 0～0.5%
Agricultural crop straw surplus
Each component sum is 100%.
Dry mass percentage is pressed, raw material components proportioning is preferably：
Paper 50～70%
Binder 0.1～0.2%
Agricultural crop straw surplus
Each component sum is 100%.
Described paper is the cardboard or books and newspapers for reclaiming；Described binder be starch, gelatin and sodium metasilicate in one kind or
Multiple；Described agricultural crop straw is one or more in maize straw, wheat stalk or rice straw.
The agricultural crop straw is one or more in maize straw and rice straw.
The two of technical scheme are：
A kind of preparation method of paper substrate degradable nutrition pot, it is characterised in that it comprises the following steps：
1）Crops stalk crushing is standby to 60～100 mesh；
2）Prepare paper pulp：Paper is soaked in running water, paper accounts for the 5%～8% of the gross mass of paper and water, stirs 10～15min, turned
40～60r/min of speed, then stands 60～80min and makes paper pulp；
3）Agricultural residues powder and binder is proportionally added into, under normal temperature, mixes 5～8min, 40～60r/min of rotating speed,
It is sufficiently mixed；
4）Will be compressing in raw material slurry suction paper pulp model formation machine；
5）The demoulding from forming machine by bowl, natural drying 2～5 days, or be placed in convection oven, 150 are dried in 20～45 DEG C
～180min, obtains final product paper substrate degradable nutrition pot finished product.
The particle diameter of crops stalk crushing is preferably 70～80 mesh.
Paper accounts for paper and the gross mass of water is preferably 6.2～7.1%.
Die for preparation is prepared from by stainless steel material, and mold shape is truncated cone and square cone.
Paper substrate degradable nutrition pot prepared by the preparation method of the paper substrate degradable nutrition pot of the present invention is in agricultural cultivation
Application.
Beneficial effects of the present invention：
1）The present invention is fermented with stalk, wood chip, feces of livestock and poultry and bonding agent with patent application 201310157059.7 compared with preparation,
Process time shortens 30%；With 201110450766.6 sweet potato starch residue ratio of Chinese patent application, cost savings 20%；With in
98119022.7 soil-block of compressed peat for cultivating seedlings of state's patent application, degradation cycle reduce 15%.
2）Paper substrate nutritive cube of the present invention water absorption rate in the initial 10min is up to 340%, and water suction is rapid, changes afterwards slow
Slowly, final water absorption rate is 470%（As shown in Figure 1）.The water absorption rate of straw base nutritive cube is significantly less than paper substrate nutritive cube, final suction
Water rate is 48%, and starch base nutritive cube（Starch dry mass is more than 50%）Water absorption rate very little all the time, final water absorption rate is only 16%.
Paper substrate nutritive cube degradation rate of the present invention is increased with 2 times of speed all the time, and degradation rate is up to 85% within the 8th week, degradation effect
Substantially.Straw base nutritive cube is always maintained at the degradation rate being stably incremented by, and the 8th week degradation rate is up to 78%.Starch base nutritive cube degradation rate
Then in first linear increase after level change linear increase again trend, the 8th week degradation rate is up to 47%（As shown in Figure 2）.Paper of the present invention
Preferably, this is likely due in paper-making process base nutritive cube degradation effect, and native cellulose is cut off and sub-wire, most of wooden
The removal of element increased the degradability of paper.Machinery and physical treatment simultaneously in paper-making process increased fiber surface area, from
And making bacterium be easier access to cellulose, the hydrolysis of enzyme becomes apparent from, and shows as good degrading effect.
3）The present invention is mixed with agricultural crop straw first with paper pulp as main preparing raw material, not only effectively alleviates discarded object
Resource utilization issue, and complementary effect is played in both blendings：Stalk can strengthen the toughness of paper, and paper can increase straw
Stalk plasticity, the nutritive cube light weight of preparation are inexpensive, environment friendly and pollution-free.
4）The primary raw material of the present invention is vegetative fiber, containing abundant minerals and vitamins, contributes to nursery.With
When, raw material and the equal environment-friendly degradable of micro binder for adding, prepare paper substrate degradable nutrition pot preservation capacity of water and fertility, gas permeability and
Mechanical property is excellent.
5）The present invention prepares the process is simple of nutritive cube, and technology is used, and production process is substantially pollution-free, it is easy to industrial production
And large-scale promotion application.
Description of the drawings
Fig. 1 is the water absorption rate curve of the paper substrate degradable nutrition pot with other biological base nutritive cube of the present invention.
Fig. 2 is the paper substrate degradable nutrition pot and other biological base nutritive cube degradation rate curve of the present invention.
Specific embodiment
With reference to embodiment, the present invention is further illustrated.
Embodiment one
Rice straw is crushed to 60 mesh, standby；Paper 10kg and water 190kg is mixed, pulp density 5%, under normal temperature, stirring
10min, rotating speed 40/min, then stand 60min；Rice straw powder 1.1g is added, without binder, is stirred under normal temperature
5min, rotating speed 40/min；Will be compressing in raw material slurry suction paper pulp model formation machine；Demoulding natural drying 2 days, obtains final product paper substrate
Degradable nutrition pot.
After tested, described paper substrate degradable nutrition pot tensile strength 2.856MPa, elongation at break 4.176%, water absorption rate
280%, 126 days degradation rates are up to 100%.
Embodiment two
Corn stalk powder is broken to 70 mesh, standby；Paper 8kg and water 135kg is mixed, pulp density 5.6%, under normal temperature, stirring
10min, rotating speed 50r/min, then stand 65min；Corn stalk powder 2.1kg, starch 0.01kg is added, is stirred under normal temperature
6min, rotating speed 50r/min；Will be compressing in raw material slurry suction paper pulp model formation machine；The demoulding is placed in convection oven, in 20
DEG C dry 180min, obtain final product paper substrate degradable nutrition pot.
After tested, described paper substrate degradable nutrition pot tensile strength 5.863MPa, elongation at break 3.225%, water absorption rate
285%, 119 days degradation rates are up to 100%.
Embodiment three
Corn stalk powder is broken to 80 mesh, standby；Paper 12kg and water 181kg is mixed, pulp density 6.2%, under normal temperature, stirring
12min, rotating speed 50r/min, then stand 70min；Corn stalk powder 5.2kg, gelatin 0.03kg is added, is stirred under normal temperature
6min, rotating speed 50r/min；Will be compressing in raw material slurry suction paper pulp model formation machine；The demoulding is placed in convection oven, in 30
DEG C dry 160min, obtain final product paper substrate degradable nutrition pot.
After tested, described paper substrate degradable nutrition pot tensile strength 7.303MPa, elongation at break 5.083%, water absorption rate
310%, 98 days degradation rates are up to 100%.
Example IV
Rice straw and corn stalk powder are broken to 80 mesh, standby；Paper 15kg and water 196kg is mixed, pulp density 7.1%, often
Under temperature, 15min, rotating speed 60r/min is stirred, then stand 80min；Addition rice straw powder 6.5kg, corn stalk powder 8.2kg,
Sodium metasilicate 0.06kg, stirs 8min, rotating speed 60r/min under normal temperature；To be pressed in raw material slurry suction paper pulp model formation machine
Type；The demoulding is placed in convection oven, is dried 150min in 45 DEG C, is obtained final product paper substrate degradable nutrition pot.
After tested, described paper substrate degradable nutrition pot tensile strength 3.258MPa, elongation at break 3.182%, water absorption rate
300%, 112 days degradation rates are up to 100%.
Embodiment five.
Wheat stalk is crushed to 100 mesh, standby；Paper 10kg and water 115kg is mixed, pulp density 8.0%, under normal temperature,
Stirring 15min, rotating speed 60r/min, then stand 80min；Wheat stalk powder 39kg, starch 0.25kg is added to stir under normal temperature
Mix 8min, rotating speed 60r/min；Will be compressing in raw material slurry suction paper pulp model formation machine；Demoulding natural drying 5 days, obtains final product
Paper substrate degradable nutrition pot.
After tested, described paper substrate degradable nutrition pot tensile strength 2.635MPa, elongation at break 3.558%, water absorption rate
290%, 119 days degradation rates are up to 100%.
The paper substrate degradable nutrition pot that the present invention is prepared, can also pass through different material ratio and preparation technology parameter,
And change nutritive cube shape, mechanical property, degradation property etc., to adapt to Different Crop growth needs, meet actual production.
Embodiment six.
The application process of the paper substrate degradable nutrition pot of the present invention is as follows：
When paper substrate degradable nutrition pot is used for botanical seedling culturing, first load the Nutrition Soil for preparing in nutritive cube, pour permeable, be put into
Seed, then sprinkles 1～1.5cm of Nutrition Soil.
Paper substrate degradable nutrition pot of the present invention is used for botanical seedling culturing, can be widely applied to cereal crops, horticulture and flower, vegetables
The nursery such as solanberry.
Part that the present invention does not relate to is same as the prior art or can be realized using prior art.
Claims (9)
1. a kind of paper substrate degradable nutrition pot, it is characterised in that can be dropped as main bio-based with paper pulp and agricultural crop straw mixture
Solution raw material, adds a small amount of binder, prepares paper substrate degradable nutrition pot, wherein press dry mass fraction, and raw material components are matched somebody with somebody
Than for：
Paper 20～90%
Binder 0～0.5%
Agricultural crop straw surplus.
2. paper substrate degradable nutrition pot according to claim 1, it is characterised in that：Press dry mass percentage, raw material components
Proportioning is：
Paper 50～70%
Binder 0.1～0.2%
Agricultural crop straw surplus.
3. paper substrate degradable nutrition pot according to claim 1 and 2, it is characterised in that described paper is the cardboard for reclaiming
Or books and newspapers；Described binder is one or more in starch, gelatin and sodium metasilicate；Described agricultural crop straw is corn stalk
One or more in stalk, wheat stalk or rice straw.
4. paper substrate degradable nutrition pot according to claim 3, it is characterised in that：The agricultural crop straw is maize straw
With one or more in rice straw.
5. the preparation method of the paper substrate degradable nutrition pot described in a kind of claim 1, it is characterised in that it comprises the following steps：
1）Crops stalk crushing is standby to 60～100 mesh；
2）Prepare paper pulp：Paper is soaked in running water, paper accounts for the 5%～8% of the gross mass of paper and water, stirs 10～15min, turned
40～60r/min of speed, then stands 60～80min and makes paper pulp；
3）Agricultural residues powder and binder is proportionally added into, under normal temperature, mixes 5～8min, 40～60r/min of rotating speed,
It is sufficiently mixed；
4）Will be compressing in raw material slurry suction paper pulp model formation machine；
5）The demoulding from forming machine by bowl, natural drying 2～5 days, or be placed in convection oven, 150 are dried in 20～45 DEG C
～180min, obtains final product paper substrate degradable nutrition pot finished product.
6. the preparation method of paper substrate degradable nutrition pot according to claim 5, it is characterised in that：Crops stalk crushing
To 70～80 mesh.
7. the preparation method of paper substrate degradable nutrition pot according to claim 5, it is characterised in that：Dry pulp quality accounts for total matter
The 6.2～7.1% of amount.
8. the preparation method of paper substrate degradable nutrition pot according to claim 5, it is characterised in that：Die for preparation is by stainless
Steel material is prepared from, and mold shape is truncated cone and square cone.
9. the paper substrate degradable nutrition pot that prepared by a kind of preparation method of the paper substrate degradable nutrition pot described in claim 5 is in agriculture
Application in industry nursery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611063053.3A CN106497120A (en) | 2016-11-28 | 2016-11-28 | Paper substrate degradable nutrition pot and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611063053.3A CN106497120A (en) | 2016-11-28 | 2016-11-28 | Paper substrate degradable nutrition pot and preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106497120A true CN106497120A (en) | 2017-03-15 |
Family
ID=58327626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611063053.3A Pending CN106497120A (en) | 2016-11-28 | 2016-11-28 | Paper substrate degradable nutrition pot and preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106497120A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108739156A (en) * | 2018-06-20 | 2018-11-06 | 临沂市农业科学院 | A kind of arid, semiarid zone silage corn high-yield planting method |
| CN112589947A (en) * | 2020-12-16 | 2021-04-02 | 齐齐哈尔大学 | Degradable biomass composite substrate plate and preparation method thereof |
| CN115281005A (en) * | 2022-08-18 | 2022-11-04 | 安徽省农业科学院农业工程研究所 | Preparation method of straw seedling raising pot with controllable degradation |
| CN116590962A (en) * | 2023-05-29 | 2023-08-15 | 东北农业大学 | Manufacturing technology of straw fiber-based ball-forming vegetable seedling pot material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104041350A (en) * | 2013-03-15 | 2014-09-17 | 浙江元成园林集团股份有限公司 | Degradable seedling culture cup |
| CN105152772A (en) * | 2015-08-28 | 2015-12-16 | 湖北尼希米科技有限公司 | Degradable straw seedling tray and production method thereof |
| CN105475033A (en) * | 2015-12-22 | 2016-04-13 | 山东农业大学 | Disposable degradable seedling raising device made of plant straw |
-
2016
- 2016-11-28 CN CN201611063053.3A patent/CN106497120A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104041350A (en) * | 2013-03-15 | 2014-09-17 | 浙江元成园林集团股份有限公司 | Degradable seedling culture cup |
| CN105152772A (en) * | 2015-08-28 | 2015-12-16 | 湖北尼希米科技有限公司 | Degradable straw seedling tray and production method thereof |
| CN105475033A (en) * | 2015-12-22 | 2016-04-13 | 山东农业大学 | Disposable degradable seedling raising device made of plant straw |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108739156A (en) * | 2018-06-20 | 2018-11-06 | 临沂市农业科学院 | A kind of arid, semiarid zone silage corn high-yield planting method |
| CN112589947A (en) * | 2020-12-16 | 2021-04-02 | 齐齐哈尔大学 | Degradable biomass composite substrate plate and preparation method thereof |
| CN115281005A (en) * | 2022-08-18 | 2022-11-04 | 安徽省农业科学院农业工程研究所 | Preparation method of straw seedling raising pot with controllable degradation |
| CN116590962A (en) * | 2023-05-29 | 2023-08-15 | 东北农业大学 | Manufacturing technology of straw fiber-based ball-forming vegetable seedling pot material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102173959B (en) | Eucalyptus seedling culture substrate and production process thereof | |
| CN100448346C (en) | Method for producing plants basin by using compost decomposed stalk | |
| CN102504560B (en) | Degradable seedling culture container, and preparation method and application thereof | |
| CN101659760B (en) | Biogas residue fiber mulch film and manufacturing method thereof | |
| CN103333023B (en) | Pleurotus eryngii cultivation material compatibility and manufacture method of cultivation material | |
| WO2003105569A1 (en) | A degradable nutrition pot | |
| CN106497120A (en) | Paper substrate degradable nutrition pot and preparation method | |
| CN104719037B (en) | Degradable seedling bowl and manufacturing method thereof | |
| CN105613100A (en) | Degradable bio-based seedling raising pot, production method thereof, regulation method in degradation period and application of degradable bio-based seedling raising pot | |
| CN103518560A (en) | Ecological environment-friendly degradation seedling growing nutrition pot | |
| CN106977970B (en) | A method of seedling-cultivation plate is prepared using modified biogas residue fiber | |
| CN102627973A (en) | Preparation method of straw pulp mulch film | |
| CN102701851A (en) | Pleurotus eryngii culture substrate | |
| KR20080042226A (en) | Environment friendly gardening pot | |
| CN106718414A (en) | A kind of degradable high-performance string synthesis agricultural mulching and preparation method thereof | |
| CN110786195B (en) | Degradable covering material with biological insect prevention function | |
| CN106588483A (en) | Eucalyptus seedling culture cultivation substrate and preparation method thereof | |
| CN102942389B (en) | High-efficiency continuous cropping-resistant organic fertilizer and preparation method thereof | |
| CN108374293B (en) | Preparation method and use method of biomass characteristic paper | |
| CN104557258A (en) | Method for preparing edible mushroom culture medium from potato residue | |
| CN107347291B (en) | Saline-alkali soil improvement method | |
| CN111109046A (en) | Degradable seedling raising pot and preparation method thereof | |
| CN101830750A (en) | Method for producing organic fertilizer by using edible fungus leftover and application thereof | |
| CN105367264A (en) | Method for producing organic fertilizer by using waste straw crumbs left after preparation and screening of crop straws for pulping | |
| CN102210244A (en) | Method for producing seedling culturing nutrition cup by using potato starch waste residue |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170315 |