CN113480373A - Full-degradable coated carbon-based double-ring-layer rod fertilizer for cigarettes and preparation method thereof - Google Patents
Full-degradable coated carbon-based double-ring-layer rod fertilizer for cigarettes and preparation method thereof Download PDFInfo
- Publication number
- CN113480373A CN113480373A CN202110931497.9A CN202110931497A CN113480373A CN 113480373 A CN113480373 A CN 113480373A CN 202110931497 A CN202110931497 A CN 202110931497A CN 113480373 A CN113480373 A CN 113480373A
- Authority
- CN
- China
- Prior art keywords
- fertilizer
- carbon
- layer
- degradable
- outer layer
- 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.)
- Granted
Links
- 239000003337 fertilizer Substances 0.000 title claims abstract description 162
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 70
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 70
- 235000019504 cigarettes Nutrition 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title claims description 6
- 239000000463 material Substances 0.000 claims abstract description 64
- 235000002637 Nicotiana tabacum Nutrition 0.000 claims abstract description 51
- 238000000576 coating method Methods 0.000 claims abstract description 49
- 239000011248 coating agent Substances 0.000 claims abstract description 48
- 241000208125 Nicotiana Species 0.000 claims abstract description 44
- 150000001875 compounds Chemical class 0.000 claims abstract description 22
- 239000003895 organic fertilizer Substances 0.000 claims abstract description 21
- 238000002156 mixing Methods 0.000 claims abstract description 15
- 239000003610 charcoal Substances 0.000 claims description 10
- 229910019142 PO4 Inorganic materials 0.000 claims description 8
- 229920001577 copolymer Polymers 0.000 claims description 8
- 239000010452 phosphate Substances 0.000 claims description 8
- -1 phosphate ester Chemical class 0.000 claims description 8
- 239000004014 plasticizer Substances 0.000 claims description 8
- 229920001896 polybutyrate Polymers 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 8
- AXKZIDYFAMKWSA-UHFFFAOYSA-N 1,6-dioxacyclododecane-7,12-dione Chemical compound O=C1CCCCC(=O)OCCCCO1 AXKZIDYFAMKWSA-UHFFFAOYSA-N 0.000 claims description 6
- WSQZNZLOZXSBHA-UHFFFAOYSA-N 3,8-dioxabicyclo[8.2.2]tetradeca-1(12),10,13-triene-2,9-dione Chemical compound O=C1OCCCCOC(=O)C2=CC=C1C=C2 WSQZNZLOZXSBHA-UHFFFAOYSA-N 0.000 claims description 6
- 239000004626 polylactic acid Substances 0.000 claims description 6
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 6
- 235000007164 Oryza sativa Nutrition 0.000 claims description 5
- 210000003608 fece Anatomy 0.000 claims description 5
- 229910052700 potassium Inorganic materials 0.000 claims description 5
- 235000009566 rice Nutrition 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 4
- YYRMJZQKEFZXMX-UHFFFAOYSA-L calcium bis(dihydrogenphosphate) Chemical compound [Ca+2].OP(O)([O-])=O.OP(O)([O-])=O YYRMJZQKEFZXMX-UHFFFAOYSA-L 0.000 claims description 4
- 239000001110 calcium chloride Substances 0.000 claims description 4
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 4
- 229910000389 calcium phosphate Inorganic materials 0.000 claims description 4
- 150000001718 carbodiimides Chemical class 0.000 claims description 4
- 238000001746 injection moulding Methods 0.000 claims description 4
- 235000019691 monocalcium phosphate Nutrition 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 239000011592 zinc chloride Substances 0.000 claims description 3
- 235000005074 zinc chloride Nutrition 0.000 claims description 3
- 238000011049 filling Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 240000007594 Oryza sativa Species 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 239000010410 layer Substances 0.000 description 75
- 239000002689 soil Substances 0.000 description 15
- 238000011282 treatment Methods 0.000 description 11
- 235000015097 nutrients Nutrition 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- 244000061176 Nicotiana tabacum Species 0.000 description 7
- 235000016709 nutrition Nutrition 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 4
- 241000209094 Oryza Species 0.000 description 4
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000009418 agronomic effect Effects 0.000 description 3
- 230000004720 fertilization Effects 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- SNICXCGAKADSCV-JTQLQIEISA-N (-)-Nicotine Chemical compound CN1CCC[C@H]1C1=CC=CN=C1 SNICXCGAKADSCV-JTQLQIEISA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- LQXZLHKVIRVBTC-UHFFFAOYSA-O [N+](=O)([O-])[O-].[NH4+].[P] Chemical compound [N+](=O)([O-])[O-].[NH4+].[P] LQXZLHKVIRVBTC-UHFFFAOYSA-O 0.000 description 2
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 description 2
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910021538 borax Inorganic materials 0.000 description 2
- PTIXVVCRANICNC-UHFFFAOYSA-N butane-1,1-diol;hexanedioic acid Chemical compound CCCC(O)O.OC(=O)CCCCC(O)=O PTIXVVCRANICNC-UHFFFAOYSA-N 0.000 description 2
- JYLRDAXYHVFRPW-UHFFFAOYSA-N butane-1,1-diol;terephthalic acid Chemical compound CCCC(O)O.OC(=O)C1=CC=C(C(O)=O)C=C1 JYLRDAXYHVFRPW-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 235000019837 monoammonium phosphate Nutrition 0.000 description 2
- 239000006012 monoammonium phosphate Substances 0.000 description 2
- 229960002715 nicotine Drugs 0.000 description 2
- SNICXCGAKADSCV-UHFFFAOYSA-N nicotine Natural products CN1CCCC1C1=CC=CN=C1 SNICXCGAKADSCV-UHFFFAOYSA-N 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 239000001103 potassium chloride Substances 0.000 description 2
- 235000011164 potassium chloride Nutrition 0.000 description 2
- 235000010333 potassium nitrate Nutrition 0.000 description 2
- 239000004323 potassium nitrate Substances 0.000 description 2
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 2
- 229910052939 potassium sulfate Inorganic materials 0.000 description 2
- 235000011151 potassium sulphates Nutrition 0.000 description 2
- 239000004328 sodium tetraborate Substances 0.000 description 2
- 235000010339 sodium tetraborate Nutrition 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000017260 vegetative to reproductive phase transition of meristem Effects 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B1/00—Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
- C05B1/02—Superphosphates
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/40—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting fertiliser dosage or release rate; for affecting solubility
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/10—Solid or semi-solid fertilisers, e.g. powders
- C05G5/14—Tablets, spikes, rods, blocks or balls
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
- C05G5/37—Layered or coated, e.g. dust-preventing coatings layered or coated with a polymer
-
- 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
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Soil Sciences (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a fully-degradable coated carbon-based double-ring-layer rod fertilizer for cigarettes, which is divided into an inner layer fertilizer and an outer layer fertilizer, wherein the outer layer fertilizer is obtained by mixing a carbon-based organic fertilizer and a carbon-based compound fertilizer, and the inner layer fertilizer is a special tobacco top dressing; the outer layer fertilizer is wrapped by an outer layer full-degradable material coating, an inner layer full-degradable material coating is arranged between the outer layer fertilizer and the inner layer fertilizer, the disintegration time of the outer layer full-degradable material coating is 2-3 days after flue-cured tobacco transplanting and burying, and the disintegration time of the inner layer full-degradable material coating is 20-25 days after flue-cured tobacco transplanting. The base fertilizer and the additional fertilizer in the traditional fertilizer application mode are coated and isolated by different fully degradable materials, and are dissolved and absorbed successively after being applied, so that the accurate requirement of tobacco on the fertilizer in each growth stage is met.
Description
Technical Field
The invention relates to a fully-degradable coated carbon-based double-ring-layer rod fertilizer for cigarettes and a preparation method thereof, belonging to the technical field of tobacco fertilizers.
Background
Carbon-based fertilizer, an ecological environment-friendly fertilizer prepared by using biomass carbon as a matrix and adding organic matters or inorganic matters, has been applied to agricultural production to a certain extent in recent years. The carbon-based fertilizer mainly comprises a carbon-based organic fertilizer, a carbon-based inorganic fertilizer, a carbon-based organic-inorganic compound fertilizer and the like, and mainly plays a certain role in supplementing carbon elements required by plants, improving the granular structure of soil, improving the water and fertilizer retention capacity of the soil, improving the utilization rate of the fertilizer and the like by ingeniously combining the porous performance and the strong adsorption capacity of the biochar with various organic nutrients, inorganic nutrients and beneficial microorganisms.
The application of carbon-based fertilizer to flue-cured tobacco has a plurality of literature reports, but basically, the carbon-based compound fertilizer or carbon-based organic fertilizer is separately used as base fertilizer for application, and in addition, the base fertilizer is added in the middle period, although the carbon effect of the plant is partially increased compared with the conventional base fertilizer, the operation of the farm work is time-consuming and labor-consuming, and the expected ideal effect is difficult to achieve. Therefore, the carbon-based double-ring-layer rod fertilizer for the fully-degradable coated cigarette is prepared by integrating elements such as a carbon-based organic fertilizer, a carbon-based compound fertilizer, a special base fertilizer and the like and injecting the elements into corresponding degradable material interlayers, so that the requirement on the fertilizer in each growth stage of the tobacco can be met by applying the carbon-based double-ring-layer rod fertilizer for the fully-degradable coated cigarette at one time, and the growth quality of the tobacco is further influenced.
Disclosure of Invention
Based on the above, the invention provides the fully-degradable coated carbon-based double-ring-layer rod fertilizer for the cigarettes and the preparation method thereof, which can be used for applying the fertilizer required by the growth of the tobaccos at one time, save labor and reduce cost, meet the accurate requirement of the tobaccos on the fertilizer in each growth stage and overcome the defects in the prior art.
The technical scheme of the invention is as follows: a full-degradable coated carbon-based double-ring-layer rod fertilizer for cigarettes is divided into an inner layer fertilizer and an outer layer fertilizer, wherein the outer layer fertilizer is obtained by mixing a carbon-based organic fertilizer and a carbon-based compound fertilizer, and the inner layer fertilizer is a special tobacco top dressing;
the outer layer fertilizer is wrapped by an outer layer full-degradable material coating, an inner layer full-degradable material coating is arranged between the outer layer fertilizer and the inner layer fertilizer, the disintegration time of the outer layer full-degradable material coating is 2-3 days after flue-cured tobacco is transplanted into soil, and the disintegration time of the inner layer full-degradable material coating is 20-25 days after planting.
Optionally, the carbon-based organic fertilizer comprises the following components in percentage by weight:
8-10% of oil cake, 56.5-62.5% of cow dung, 12.5-14.5% of rice bran, 12.5-14.5% of charcoal powder and 4-5% of calcium superphosphate; in addition, the water content is less than or equal to 35 percent.
Optionally, the N: P in the carbon-based compound fertilizer2O5K is 8-9: 9-10: 20-22, and the charcoal powder is more than or equal to 12% by mass percent.
Optionally, N: P in the special tobacco top dressing2O5K is 12-15: 0-12: 25-30, and calculated by mass percent, N is more than or equal to 12%, and K is more than or equal to 24%.
Optionally, the outer fully degradable material coating comprises the following components in percentage by weight:
polylactic acid (PLA) or
75-85% of a copolymer (PBAT) of butylene adipate and butylene terephthalate;
15-25% of phosphate ester plasticizer;
the calcium chloride (or zinc chloride) accounts for 0.4-0.6%.
Optionally, the inner fully degradable material coating comprises the following components in percentage by weight:
polylactic acid (PLA) or
75-85% of a copolymer (PBAT) of butylene adipate and butylene terephthalate;
15-25% of phosphate ester plasticizer;
the carbodiimide accounts for 0.4-0.8%.
The invention also provides a preparation method of the fully-degradable coated carbon-based double-ring-layer rod fertilizer for cigarettes, which comprises the following steps:
the cylindrical product is prepared by adopting an injection molding method and comprises a two-layer structure, namely an outer layer full-degradable material coating and an inner layer full-degradable material coating, wherein the thickness of the coating is 0.3-0.5 mm, and the height of the cylinder is 8-12 cm.
And then crushing and uniformly mixing the components of the outer layer fertilizer and the inner layer fertilizer, respectively filling the mixture into corresponding coating materials, wherein the inner layer fertilizer is put into the coating of the inner layer fully degradable material, and the outer layer fertilizer is put into the coating of the outer layer fully degradable material, and respectively sealing the coating.
The invention has the beneficial effects that: the rod fertilizer is divided into two layers from inside to outside, the outer layer fertilizer is obtained by mixing a carbon-based organic fertilizer and a carbon-based compound fertilizer, the inner layer fertilizer is a special additional fertilizer for tobacco, the outer layer is coated by an outer layer full-degradable material, and an inner layer full-degradable material coating is arranged between the outer layer fertilizer and the inner layer fertilizer. Therefore, when the fertilizer is applied, the outer-layer full-degradable material coating is disintegrated within 2-3 days after the rod fertilizer is applied and buried, and the fertilizer effect is released outwards by the outer-layer fertilizer so as to meet the nutritional requirement within 25 days after the tobacco plants are transplanted. The inner layer full-degradable material coating is exposed in soil after being disintegrated in the inner layer full-degradable material coating, and is disintegrated 20-25 days after planting, and the inner layer fertilizer gradually releases fertilizer efficiency outwards so as to meet the nutritional requirement 25 days after the tobacco plants are transplanted. The base fertilizer and the additional fertilizer in the traditional fertilizer application mode are coated and isolated by different fully degradable materials, and are dissolved and absorbed successively after being applied, so that the accurate requirement of tobacco on the fertilizer in each growth stage is met.
The carbon-based double-ring-layer rod fertilizer for the fully-degradable coated cigarette is prepared by integrating elements such as a carbon-based organic fertilizer, a carbon-based compound fertilizer, a special base fertilizer and the like and injecting the elements into corresponding degradable material interlayers, so that the requirement of the tobacco on the fertilizer in each growth stage can be met by applying the carbon-based double-ring-layer rod fertilizer for the fully-degradable coated cigarette at one time, and the growth quality of the tobacco is further influenced.
In addition, the invention changes the prior inorganic chemical fertilizer into the carbon-based organic fertilizer and the carbon-based compound fertilizer, and through the test of the applicant, the utilization and the comprehensive distribution of the nutrient elements in the soil can be improved, the larger specific surface area of the carbon-based compound fertilizer provides a storage space for nutrient adsorption and microbial communities, and the adsorbed nutrient elements can be directly absorbed and utilized by root systems, so that the utilization rate of the nitrogen is improved. The carbon-based organic fertilizer and the carbon-based compound fertilizer are mixed, so that the effects of improving the soil structure and improving the tobacco quality can be further achieved.
Drawings
FIG. 1 is a schematic structural diagram of a bar fertilizer;
FIG. 2 is a longitudinal cross-sectional view of a bar fertilizer;
reference numerals: 1 outer layer fertilizer, 2 inner layer fertilizer, 3 outer layer full degradable material coating and 4 inner layer full degradable material coating.
Detailed Description
The present invention will be described in detail with reference to the following embodiments in order to make the aforementioned objects, features and advantages of the invention more comprehensible. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.
The following is a detailed description of the principles of the invention:
the invention relates to a fully-degradable coated carbon-based double-ring-layer rod fertilizer for cigarettes, which is divided into an inner layer fertilizer and an outer layer fertilizer, wherein the outer layer fertilizer is obtained by mixing a carbon-based organic fertilizer and a carbon-based compound fertilizer, and the inner layer fertilizer is special for tobaccosTopdressing; an outer layer full-degradable material coating is wrapped outside the outer layer fertilizer, an inner layer full-degradable material coating is arranged between the outer layer fertilizer and the inner layer fertilizer, the disintegration time of the outer layer full-degradable material coating is 2-3 days after flue-cured tobacco transplanting and burying, the disintegration time of the inner layer degradable material coating is 20-25 days after planting, and all the degradable material coatings are completely degraded into CO in 0.5-1.5 months after disintegration2And H2O。
The rod fertilizer is divided into two layers from inside to outside, the outer layer fertilizer is obtained by mixing a carbon-based organic fertilizer and a carbon-based compound fertilizer, the inner layer fertilizer is a special additional fertilizer for tobacco, the outer layer is coated by an outer layer full-degradable material, and an inner layer full-degradable material coating is arranged between the outer layer fertilizer and the inner layer fertilizer. Therefore, when the fertilizer is applied, the outer-layer full-degradable material coating is disintegrated within 2-3 days after the rod fertilizer is applied and buried, and the fertilizer effect is released outwards by the outer-layer fertilizer so as to meet the nutritional requirement within 25 days after the tobacco plants are transplanted. The inner layer full-degradable material coating is exposed in soil after the outer layer full-degradable material coating is disintegrated, and is disintegrated 20-25 days after planting, and the inner layer fertilizer gradually releases fertilizer efficiency outwards so as to meet the nutritional requirement 25 days after the tobacco plants are transplanted. The base fertilizer and the additional fertilizer in the traditional fertilizer application mode are coated and isolated by different fully degradable materials, and are dissolved and absorbed successively after being applied, so that the accurate requirement of tobacco on the fertilizer in each growth stage is met.
Preferably, the outer-layer full-degradable material coating material is a cylindrical film product prepared by mixing a base material and auxiliary materials and then performing an injection molding method, and the disintegration time is 2-3 days after planting. Wherein, the base material: 75-85% by weight of polylactic acid (PLA) or a copolymer (PBAT) of butylene adipate and butylene terephthalate, and 15-25% by weight of phosphate ester plasticizer; auxiliary materials: the weight percentage of the calcium chloride (or the zinc chloride) is 0.4-0.6%. In this embodiment, the thickness of the film product is 0.3 to 0.5 mm.
Preferably, the inner layer full-degradable material coating material is a cylindrical film product prepared by mixing a base material and auxiliary materials and then performing an injection molding method, and the disintegration time is 20-25 days after planting. Wherein, the base material: 75-85% by weight of polylactic acid (PLA) or a copolymer (PBAT) of butylene adipate and butylene terephthalate, and 15-25% by weight of phosphate ester plasticizer; auxiliary materials: the weight percentage of the carbodiimide accounts for 0.4-0.8%. In this embodiment, the thickness of the film product is 0.3 to 0.5 mm.
Preferably, the carbon-based organic fertilizer comprises the following components in percentage by weight: 8-10% of oil cake, 56.5-62.5% of cow dung, 12.5-14.5% of rice bran, 12.5-14.5% of charcoal powder and 4-5% of calcium superphosphate; in addition, the water content is less than or equal to 35 percent. P in carbon-based compound fertilizer2O5K is 8-9: 9-10: 20-22, and the charcoal powder is more than or equal to 12% by mass percent. N: P in special top dressing for tobacco2O5K is 12-15: 0-12: 25-30, and calculated by mass percent, N is more than or equal to 12%, and K is more than or equal to 24%. In the embodiment, every 1100kg of the carbon-based organic fertilizer is prepared by mixing 100kg of oil cake, 650kg of cow dung, 150kg of rice bran, 150kg of charcoal powder and 50kg of common calcium, and every 100kg of the carbon-based compound fertilizer is prepared by mixing 20.5kg of ammonium nitrate phosphorus, 18kg of monoammonium phosphate, 4kg of potassium nitrate, 38.5kg of potassium sulfate, 2kg of potassium chloride, 2kg of borax, 12.5kg of charcoal and 2.5kg of fillers. The special top dressing for tobacco has the selective proportion of N to P2O5:K＝12～15:0～12:25～30。
Effect verification:
in order to verify the actual application effect of the invention in the field, a field-by-field comparison test is carried out. The same field contrast test is provided with 2 treatments, each treatment is repeated for 3 times, and the area of a cell is 100m2. The contrast treatment adopts a conventional fertilization mode (base fertilizer and additional fertilizer); treatment 1 the present invention was used to apply a bar fertilizer once.
Planting test sites: in the Guizhou province tobacco science research institute flat dam test base. The planting field needs no root and stem diseases, concentrated connection of pieces, flat topography, convenient irrigation and drainage, moderate and basically consistent soil fertility. The flue-cured tobacco variety Yunyan 87 planted in the current field is adopted as a test variety, ridge culture is carried out on a test field, the ridge forming height is 0.3m, the ridge distance is 1.1m, the transplanting row distance is 0.55m, transplanting is carried out for 15 days after 4 months, and field management, harvesting and baking are the same as local high-quality flue-cured tobacco cultivation management measures.
The planting test method comprises the following steps: applying pure nitrogen to each treated muIt was 7 kg. The contrast treatment is carried out according to a conventional fertilization mode, and specifically comprises the following steps: compound fertilizer (N: P) for flue-cured tobacco2O550.0kg (used as base fertilizer in strip application) of K ═ 9:9:22, and 2.5kg (N: P) of root fixing fertilizer2O5K15: 0:30), topdressing (N: P)2O5K15: 0:30)14.2 kg. Treatment 1, after the tobacco plants are transplanted on tobacco ridges without base fertilizer, 2.5kg of root fixing fertilizer (N: P) is applied to each mu2O5And K is 15:0:30), applying rod fertilizers at one time after transplanting, applying 1 rod fertilizer to each tobacco plant in soil with the side of 10cm of the tobacco plant, wherein the length of the rod fertilizer is 9cm, the diameter of the rod fertilizer is 3.5cm, the insertion depth of the rod fertilizer is 10cm, and covering soil after inserting the rod fertilizer into the soil. The rod fertilizer treated 1 is prepared by mixing a carbon-based organic fertilizer, a carbon-based compound fertilizer and a special tobacco top dressing according to a certain proportion, wherein each mu of rod fertilizer contains 60kg of the carbon-based organic fertilizer, 23kg of the carbon-based compound fertilizer and the top dressing (N: P)2O5K is 15:0:30)14.2kg, wherein each 1100 parts of the carbon-based organic fertilizer is prepared by mixing 100 parts of oil cake, 650 parts of cow dung, 150 parts of rice bran, 150 parts of charcoal powder and 50 parts of calcium superphosphate, and each 100 parts of the carbon-based compound fertilizer is prepared by mixing 20.5 parts of ammonium nitrate phosphorus, 18 parts of monoammonium phosphate, 4 parts of potassium nitrate, 38.5 parts of potassium sulfate, 2 parts of potassium chloride, 2 parts of borax, 12.5 parts of charcoal and 2.5 parts of filler.
In the treatment 1, the outer layer full-degradable material coating material comprises the following components in percentage by weight: 80 percent of copolymer (PBAT) of butanediol adipate and butanediol terephthalate, 19.5 percent of phosphate ester plasticizer and 0.5 percent of calcium chloride.
The inner layer full-degradable material coating material comprises the following components in percentage by weight: 80 percent of copolymer (PBAT) of butanediol adipate and butanediol terephthalate, 19.3 percent of phosphate ester plasticizer and 0.7 percent of carbodiimide by weight percent.
The results of field-by-field comparison tests show that the difference of the application of the rod fertilizer disclosed by the invention compared with the control treatment is obvious, and the growth and development of flue-cured tobacco and the quality improvement of tobacco leaves are facilitated. Compared with the conventional fertilization CK treatment, the flue-cured tobacco has the advantages that the agronomic indexes such as plant height, maximum leaf length, maximum leaf width and pitch of the flue-cured tobacco are greatly increased (the agronomic characters of the flue-cured tobacco in the initial flowering period are shown in the table 1), wherein the differences among the treatment of the plant height, the maximum leaf length and the maximum leaf width reach significant levels, and the fertilizer can fully meet the nutrition required by the development of the flue-cured tobacco in each stage. Compared with the quality of the flue-cured tobacco leaves, the tobacco leaves processed by the rod fertilizer have moderate nicotine content, high potassium content and better harmony of chemical components (Table 2), wherein the difference among the indexes of nicotine, total nitrogen, potassium content and the like reaches an extremely obvious level, and the difference among the indexes of reducing sugar content reaches an obvious level.
TABLE 1 agronomic traits for different treatments of initial flowering stage of flue-cured tobacco
TABLE 2 chemical composition of the different treated flue-cured tobacco leaves (C3F)
In addition, through experimental analysis of the applicant, the base fertilizer is changed from a conventional inorganic chemical fertilizer into the carbon-based organic fertilizer and the carbon-based compound fertilizer, the soil environment can be improved, the utilization and comprehensive distribution of nutrient elements in the soil can be improved, a storage space is provided for nutrient adsorption and microbial communities due to the large specific surface area of the carbon-based fertilizer, and the adsorbed nutrient elements can be directly absorbed and utilized by root systems, so that the utilization rate of nitrogen is improved. The carbon-based organic fertilizer and the carbon-based compound fertilizer are mixed, so that the effects of improving the soil structure and improving the tobacco quality can be further achieved.
The rod fertilizer can promote flue-cured tobacco to absorb nutrients in stages and reduce ineffective release and leaching of fertilizer efficiency. The fertilizer is applied at one time, and the labor consumption is reduced by 1.5-2.0 per mu. Moreover, when the tobacco seedlings are transplanted, due to weather and soil moisture, for example, the transplanting period is only suitable for a short time of 2-3 days, the rod application mode, namely transplanting is adopted, and the fertilizer is applied within a week.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (7)
1. The full-degradable coated carbon-based double-ring-layer rod fertilizer for the cigarettes is characterized by being divided into an inner-layer fertilizer and an outer-layer fertilizer, wherein:
the outer layer fertilizer is obtained by mixing a carbon-based organic fertilizer and a carbon-based compound fertilizer;
the inner layer fertilizer is a special tobacco top dressing;
the outer layer fertilizer is wrapped by an outer layer full-degradable material coating, an inner layer full-degradable material coating is arranged between the outer layer fertilizer and the inner layer fertilizer, the disintegration time of the outer layer full-degradable material coating is 2-3 days after flue-cured tobacco transplanting and burying, and the disintegration time of the inner layer full-degradable material coating is 20-25 days after flue-cured tobacco transplanting.
2. The carbon-based double-ring-layer rod fertilizer for the fully-degradable coated cigarettes as claimed in claim 1, wherein the carbon-based organic fertilizer comprises the following components in percentage by weight:
8-10% of oil cake, 56.5-62.5% of cow dung, 12.5-14.5% of rice bran, 12.5-14.5% of charcoal powder and 4-5% of calcium superphosphate; in addition, the water content is less than or equal to 35 percent.
3. The carbon-based double-ring-layer rod fertilizer for the fully-degradable coated cigarettes as claimed in claim 1, wherein P is N in the carbon-based compound fertilizer2O5K is 8-9: 9-10: 20-22, and the charcoal powder is more than or equal to 12% by mass percent.
4. The carbon-based double-ring-layer rod fertilizer for the fully-degradable coated cigarette according to claim 1,in the special additional fertilizer for tobacco, N is P2O5K is 12-15: 0-12: 25-30, and calculated by mass percent, N is more than or equal to 12%, and K is more than or equal to 24%.
5. The carbon-based double-ring-layer rod fertilizer for the fully-degradable coated cigarette according to claim 1, wherein the outer fully-degradable material coating comprises the following components in percentage by weight:
polylactic acid (PLA) or
75-85% of a copolymer (PBAT) of butylene adipate and butylene terephthalate;
15-25% of phosphate ester plasticizer;
the calcium chloride (or zinc chloride) accounts for 0.4-0.6%.
6. The carbon-based double-ring-layer rod fertilizer for the fully-degradable coated cigarette according to claim 1, wherein the coating of the inner fully-degradable material comprises the following components in percentage by weight:
polylactic acid (PLA) or
75-85% of a copolymer (PBAT) of butylene adipate and butylene terephthalate;
15-25% of phosphate ester plasticizer;
the carbodiimide accounts for 0.4-0.8%.
7. The preparation method of the fully-degradable coated carbon-based double-ring-layer rod fertilizer for the cigarettes as claimed in any one of claims 1 to 6, wherein the method comprises the following steps:
the cylindrical product is prepared by adopting an injection molding method and comprises a two-layer structure, namely an outer layer full-degradable material coating and an inner layer full-degradable material coating, wherein the thickness of the coating is 0.3-0.5 mm, and the height of the cylinder is 8-12 cm. And then crushing and uniformly mixing the components of the outer layer fertilizer and the inner layer fertilizer, respectively filling the mixture into corresponding coating materials, wherein the inner layer fertilizer is put into the coating of the inner layer fully degradable material, and the outer layer fertilizer is put into the coating of the outer layer fully degradable material, and respectively sealing the coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110931497.9A CN113480373B (en) | 2021-08-13 | 2021-08-13 | Preparation method of fully-degradable coated carbon-based double-ring-layer bar fertilizer for cigarettes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110931497.9A CN113480373B (en) | 2021-08-13 | 2021-08-13 | Preparation method of fully-degradable coated carbon-based double-ring-layer bar fertilizer for cigarettes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113480373A true CN113480373A (en) | 2021-10-08 |
| CN113480373B CN113480373B (en) | 2024-01-23 |
Family
ID=77946550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110931497.9A Active CN113480373B (en) | 2021-08-13 | 2021-08-13 | Preparation method of fully-degradable coated carbon-based double-ring-layer bar fertilizer for cigarettes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113480373B (en) |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4436924A1 (en) * | 1994-10-15 | 1996-04-18 | Buna Gmbh | Long-term fertiliser rods |
| US20020098982A1 (en) * | 2001-01-22 | 2002-07-25 | Burnham Jeffrey C. | Production and use of biosolid granules |
| CN2771202Y (en) * | 2003-04-21 | 2006-04-12 | 冯树杰 | Two-cladding-layer, two-film-layer spherical fertilizer |
| CN1896035A (en) * | 2006-06-27 | 2007-01-17 | 常德卷烟厂 | Special synergistic formula fertilizer for cured tobacco and its preparation |
| CN101209934A (en) * | 2006-12-26 | 2008-07-02 | 深圳市芭田生态工程股份有限公司 | Coating type particle composite fertilizer and producing technique thereof |
| WO2012138210A1 (en) * | 2011-04-05 | 2012-10-11 | Universiti Teknologi Petronas | Multilayer controlled release fertilizer and method for producing the same |
| CN103012002A (en) * | 2013-01-23 | 2013-04-03 | 上海孚祥生物科技有限公司 | Special slow release fertilizer for tobacco by using biomass granular carbon as matrix and preparation method thereof |
| CN103011987A (en) * | 2013-01-14 | 2013-04-03 | 河北九邦肥业有限公司 | Double-membrane double-control slow release fertilizer |
| CN103435425A (en) * | 2013-08-29 | 2013-12-11 | 王中臣 | Hierarchical slow release multielement fertilizer and manufacturing process thereof |
| CN103524200A (en) * | 2013-08-27 | 2014-01-22 | 黄继军 | Fertilizer with controllable slow release function in full growth period as well as preparation method thereof |
| CN104230577A (en) * | 2014-10-10 | 2014-12-24 | 潘虹 | Special compound fertilizer for tobacco allowing controlled release |
| CN204400865U (en) * | 2014-12-04 | 2015-06-17 | 重庆市段家坝生态养殖有限公司 | A kind of Fertilizer rod of antiseep |
| CN104860751A (en) * | 2015-05-04 | 2015-08-26 | 河南师范大学 | Double-layer enveloped slow/controlled release fertilizer and preparation method thereof |
| CN108129210A (en) * | 2018-02-09 | 2018-06-08 | 郑州高富肥料有限公司 | A kind of multilayer capsule structure sustained-controll-release fertiliser and preparation method thereof |
| US20200079704A1 (en) * | 2018-09-09 | 2020-03-12 | Santosh Kumar Yadav | System and method for manufacturing polymer coated controlled release fertilizers |
| CN210163355U (en) * | 2019-07-04 | 2020-03-20 | 沈阳瑞元德生物科技有限公司 | Slow-release particle biological organic fertilizer bar |
| CN111170813A (en) * | 2020-02-11 | 2020-05-19 | 中向旭曜科技有限公司 | Rice slow-release fertilizer and preparation method thereof |
| CN111499435A (en) * | 2020-04-24 | 2020-08-07 | 大理洱海生物肥业有限公司 | Special solid organic fertilizer for tobacco and preparation method thereof |
| CN112209785A (en) * | 2020-10-10 | 2021-01-12 | 秦皇岛禾苗生物技术有限公司 | Columnar granular microbial fertilizer with double-layer structure |
-
2021
- 2021-08-13 CN CN202110931497.9A patent/CN113480373B/en active Active
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4436924A1 (en) * | 1994-10-15 | 1996-04-18 | Buna Gmbh | Long-term fertiliser rods |
| US20020098982A1 (en) * | 2001-01-22 | 2002-07-25 | Burnham Jeffrey C. | Production and use of biosolid granules |
| CN2771202Y (en) * | 2003-04-21 | 2006-04-12 | 冯树杰 | Two-cladding-layer, two-film-layer spherical fertilizer |
| CN1896035A (en) * | 2006-06-27 | 2007-01-17 | 常德卷烟厂 | Special synergistic formula fertilizer for cured tobacco and its preparation |
| CN101209934A (en) * | 2006-12-26 | 2008-07-02 | 深圳市芭田生态工程股份有限公司 | Coating type particle composite fertilizer and producing technique thereof |
| WO2012138210A1 (en) * | 2011-04-05 | 2012-10-11 | Universiti Teknologi Petronas | Multilayer controlled release fertilizer and method for producing the same |
| CN103011987A (en) * | 2013-01-14 | 2013-04-03 | 河北九邦肥业有限公司 | Double-membrane double-control slow release fertilizer |
| CN103012002A (en) * | 2013-01-23 | 2013-04-03 | 上海孚祥生物科技有限公司 | Special slow release fertilizer for tobacco by using biomass granular carbon as matrix and preparation method thereof |
| CN103524200A (en) * | 2013-08-27 | 2014-01-22 | 黄继军 | Fertilizer with controllable slow release function in full growth period as well as preparation method thereof |
| CN103435425A (en) * | 2013-08-29 | 2013-12-11 | 王中臣 | Hierarchical slow release multielement fertilizer and manufacturing process thereof |
| CN104230577A (en) * | 2014-10-10 | 2014-12-24 | 潘虹 | Special compound fertilizer for tobacco allowing controlled release |
| CN204400865U (en) * | 2014-12-04 | 2015-06-17 | 重庆市段家坝生态养殖有限公司 | A kind of Fertilizer rod of antiseep |
| CN104860751A (en) * | 2015-05-04 | 2015-08-26 | 河南师范大学 | Double-layer enveloped slow/controlled release fertilizer and preparation method thereof |
| CN108129210A (en) * | 2018-02-09 | 2018-06-08 | 郑州高富肥料有限公司 | A kind of multilayer capsule structure sustained-controll-release fertiliser and preparation method thereof |
| US20200079704A1 (en) * | 2018-09-09 | 2020-03-12 | Santosh Kumar Yadav | System and method for manufacturing polymer coated controlled release fertilizers |
| CN210163355U (en) * | 2019-07-04 | 2020-03-20 | 沈阳瑞元德生物科技有限公司 | Slow-release particle biological organic fertilizer bar |
| CN111170813A (en) * | 2020-02-11 | 2020-05-19 | 中向旭曜科技有限公司 | Rice slow-release fertilizer and preparation method thereof |
| CN111499435A (en) * | 2020-04-24 | 2020-08-07 | 大理洱海生物肥业有限公司 | Special solid organic fertilizer for tobacco and preparation method thereof |
| CN112209785A (en) * | 2020-10-10 | 2021-01-12 | 秦皇岛禾苗生物技术有限公司 | Columnar granular microbial fertilizer with double-layer structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113480373B (en) | 2024-01-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103936507B (en) | A kind of preparation method of microbial organic fertilizer | |
| CN107216227A (en) | A kind of apple special bio charcoal base microbe bacterial manure and preparation method thereof | |
| CN105165466B (en) | A kind of preparation method of degradable layer structure rice seedling nursing disc | |
| CN108456105B (en) | Pine charcoal-based microbial soil conditioner and preparation method thereof | |
| CN106631616A (en) | Formula and preparation method for planting soil on high and steep rock slope | |
| CN107652147A (en) | Improved soil type fertilizer synergistic conditioning agent and its production method | |
| CN113604224A (en) | Composite improver for mountainous area barren soil and use method thereof | |
| CN110437012A (en) | A kind of dedicated fertilizer improving tobacco-growing soil physicochemical property | |
| CN108476880B (en) | Method for rapidly planting and strengthening roots of pepper seedlings | |
| CN105152749A (en) | Wheat straw biochar fertilizer with drought resistant function and preparation method thereof | |
| CN104945151A (en) | Epicormic branch cutting medium for vaccinium uliginosum and preparation method thereof | |
| CN108456107A (en) | A kind of seedling growth organic fertilizer and its manufacture craft | |
| CN104557272B (en) | The method that packed Controlled Release Fertilizer is prepared using Eupatorium adenophorum | |
| CN112028671A (en) | Production process of anti-soaking decomposition columnar granulated fertilizer | |
| He et al. | Decomposition characteristics and nutrient release rules of maize straw under different returning amounts. | |
| CN115474525B (en) | Flower humus soil, preparation method thereof and flower planting method | |
| CN113480373B (en) | Preparation method of fully-degradable coated carbon-based double-ring-layer bar fertilizer for cigarettes | |
| KR100855318B1 (en) | Green soil mixture for multi planting on cutting slope & it's manufacturing method | |
| CN108383657A (en) | Loosing soil agent and preparation method thereof | |
| CN108243694A (en) | Subtract the horticultural vegetable field soil phosphorus supply power method for improving applied based on vegetable chemistry phosphate fertilizer | |
| CN110591725B (en) | Acid soil improvement additive and preparation method and application thereof | |
| CN107698393A (en) | A kind of tree peony special fertilizer | |
| CN113788725A (en) | Multifunctional fertilizer synergist and preparation method thereof | |
| CN112500223A (en) | Biological organic-inorganic fertilizer suitable for safflower large golden elements and preparation method thereof | |
| CN112028692A (en) | Special biological organic fertilizer for saline-alkali soil and preparation method 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 |