CN114907163A - Preparation method of Chinese cabbage slow-release fertilizer based on nano-scale biomass carbon material - Google Patents
Preparation method of Chinese cabbage slow-release fertilizer based on nano-scale biomass carbon material Download PDFInfo
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- CN114907163A CN114907163A CN202210536679.0A CN202210536679A CN114907163A CN 114907163 A CN114907163 A CN 114907163A CN 202210536679 A CN202210536679 A CN 202210536679A CN 114907163 A CN114907163 A CN 114907163A
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- 239000003337 fertilizer Substances 0.000 title claims abstract description 78
- 235000010149 Brassica rapa subsp chinensis Nutrition 0.000 title claims abstract description 52
- 235000000536 Brassica rapa subsp pekinensis Nutrition 0.000 title claims abstract description 52
- 241000499436 Brassica rapa subsp. pekinensis Species 0.000 title claims abstract description 52
- 239000002028 Biomass Substances 0.000 title claims abstract description 49
- 239000003575 carbonaceous material Substances 0.000 title claims abstract description 7
- 238000002360 preparation method Methods 0.000 title claims abstract description 7
- 239000003610 charcoal Substances 0.000 claims abstract description 33
- 239000000463 material Substances 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 19
- 239000002086 nanomaterial Substances 0.000 claims abstract description 18
- 241000196324 Embryophyta Species 0.000 claims abstract description 12
- 239000002689 soil Substances 0.000 claims abstract description 11
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims description 8
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims description 8
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 claims description 8
- 235000005822 corn Nutrition 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 8
- 229910021642 ultra pure water Inorganic materials 0.000 claims description 8
- 239000012498 ultrapure water Substances 0.000 claims description 8
- 229910052700 potassium Inorganic materials 0.000 claims description 6
- 239000010902 straw Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 4
- 238000005242 forging Methods 0.000 claims description 4
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 claims description 4
- 229910052939 potassium sulfate Inorganic materials 0.000 claims description 4
- 235000011151 potassium sulphates Nutrition 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 238000002054 transplantation Methods 0.000 claims description 2
- 241000209149 Zea Species 0.000 claims 2
- 235000015097 nutrients Nutrition 0.000 abstract description 9
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000003607 modifier Substances 0.000 abstract 2
- 240000008042 Zea mays Species 0.000 description 6
- 239000000575 pesticide Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000004720 fertilization Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 241000219193 Brassicaceae Species 0.000 description 1
- 241000282414 Homo sapiens Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 238000013270 controlled release Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003937 drug carrier Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
Images
Classifications
-
- 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
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C21/00—Methods of fertilising, sowing or planting
-
- 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
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
- A01G22/15—Leaf crops, e.g. lettuce or spinach
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C5/00—Fertilisers containing other nitrates
- C05C5/04—Fertilisers containing other nitrates containing calcium nitrate
-
- 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
Abstract
The invention discloses a method for preparing a Chinese cabbage slow-release fertilizer based on a nano-scale biomass carbon material, which comprises the steps of preparing the Chinese cabbage slow-release fertilizer and applying the Chinese cabbage slow-release fertilizer, wherein the preparation of the plant slow-release fertilizer specifically comprises the following steps: preparing a biomass charcoal nano material, loading elements and preparing a modifier; the soil slow release fertilizer application specifically comprises the following steps: treating plant seedlings, treating modifier, transplanting seedlings and checking and accepting results. The invention has the beneficial effects that: the nutrient elements are utilized by the growth of the Chinese cabbage to the maximum extent by the application of the biochar nano material and the quantitative control of nutrient components; greatly improves the utilization rate of the Chinese cabbage on nutrient elements, and not only can effectively improve the utilization rate of the Chinese cabbage on the nutrients; the loss of the fertilizer can be reduced, and the damage to the environment is reduced; the technology is green, environment-friendly and efficient by combining the application of the nano biomass charcoal material.
Description
Technical Field
The invention relates to a preparation method of a Chinese cabbage slow-release fertilizer based on a nano-scale biomass charcoal material, in particular to a method for improving the utilization rate of the Chinese cabbage to the fertilizer, and belongs to the technical field of agriculture.
Background
Chinese cabbage, belonging to the family of cruciferae, is greener in color, rich in nutrition, and resistant to low temperature and high temperature, and can be planted almost in four seasons. However, the planting of the Chinese cabbage needs a lot of fertilizers, statistics shows that the average fertilizing amount per mu is 150-200 kilograms, the effect is not obvious, and the yield per mu of the Chinese cabbage is between 6000-7000 kilograms. The average fertilizer is 33g per kilogram of Chinese cabbage, and the fertilizer efficiency is lower and lower along with the annual land use. Meanwhile, as too much fertilizer enters the farmland ecosystem, most of the unused fertilizer enters a water body and a groundwater system to generate eutrophication for the ecosystem; meanwhile, chemical fertilizers which do not enter the water body can cause soil hardening, so that the utilization rate of the land is reduced year by year.
Traditional pesticides and chemical fertilizers threaten the safety of human beings and ecological environment while improving the grain yield, and the novel agricultural technology does not concern the problem of chemical fertilizer utilization rate. In recent years. The application of the nano material in agricultural production increase and environmental remediation is completely open due to the characteristics of high efficiency, slow release and the like. The existing research shows that the pesticide particles are loaded by the nano material, the controlled release of the drug can be realized by the microencapsulation technology according to the requirements of the crop control such as the aging characteristic, and the like, and the effective period is prolonged, so that the application times of the pesticide can be reduced, and the food safety problem caused by pesticide abuse is avoided. Therefore, the technology of drug carriers based on nano materials and nano technology is possible to implement the oriented use of fertilizers and improve the utilization of controllable release. Therefore, it is very important to find a slow release Chinese cabbage based on nano materials to enhance the utilization rate of the fertilizer.
Disclosure of Invention
The invention aims to solve at least one technical problem and provides a method for preparing a Chinese cabbage slow-release fertilizer based on a nano-scale biomass charcoal material, which can effectively improve the utilization rate of the Chinese cabbage to the fertilizer; the using amount of the fertilizer is reduced; the technology is green, environment-friendly and efficient by combining the application of the nano biomass charcoal material.
The invention realizes the purpose through the following technical scheme: a preparation method of a Chinese cabbage slow release fertilizer based on a nano-scale biomass charcoal material comprises the following steps
Step one, preparing a Chinese cabbage slow release fertilizer, which comprises the following steps:
firstly, preparing a biomass charcoal nano material;
n, K loading element;
preparing slow release fertilizer;
step two, applying a Chinese cabbage slow release fertilizer, comprising the following steps:
firstly, processing plant seedlings;
secondly, slow release fertilizer treatment;
thirdly, transplanting seedlings;
and fourthly, checking and accepting results.
As a still further scheme of the invention: in the first step, when the biomass charcoal nano material is prepared, the corn straw harvested in the current year is used as a raw material, and the corn straw biomass charcoal material is fired at a high temperature of 650 ℃; and (3) forging the nano biomass charcoal material by an all-directional ball mill at 160 rpm for 4 hours.
As a still further scheme of the invention: in the first step, N, K elements are loaded, 2.1 g of calcium nitrate, 1.11 g of potassium sulfate and 0.05g of biomass carbon nano material are weighed, 1 liter of ultrapure water is added, and the components are uniformly mixed at the temperature of 60 ℃; then cooling to room temperature, and evaporating to dryness at constant temperature of 30 ℃; storing at 4 ℃.
As a still further scheme of the invention: in the step one, when the slow release fertilizer is prepared, 100g of slow release fertilizer powder is weighed, 10 ml of triton-100 liquid is added, and the mixture is uniformly mixed; 1L of ultrapure water is added and stirred evenly for standby.
As a still further scheme of the invention: in the second step, when the plant seedlings are treated, the plants are treated by adopting plug trays with 72 holes and 540mm multiplied by 280mm, and after the 5 th true leaf of the seedling grows out, the seedling is prepared for treatment and transplantation.
As a still further scheme of the invention: in the second step, the slow release fertilizer is treated, and the prepared slow release fertilizer solution is injected into the root ball by using a 5 ml injector; injecting for two times to ensure that the root ball is completely soaked by the modifying agent; then placing the seedlings on a hollow frame for standing without liquid drops and then transplanting the seedlings.
As a still further scheme of the invention: in the second step, when transplanting seedlings, firstly preparing a seedbed close to the size of the seedling root ball on the salinized or salinized soil, transplanting the treated seedlings into the salinized or salinized soil, covering the soil, and finishing the process. In the subsequent treatment process, after the fifth true leaf grows out, the slow release fertilizer with the same concentration and the same amount is added for one time, and the additional fertilizer is not carried out in the rest time.
As a still further scheme of the invention: in the second step, when the Chinese cabbage is completely mature in acceptance results, the growth of the Chinese cabbage treated by the nano-scale biomass carbon material slow release fertilizer can be found to be the same as the biomass and quality of the Chinese cabbage subjected to normal fertilization.
The invention has the beneficial effects that: by comprehensively utilizing the biochar nano material and nutrient components, the utilization rate of the Chinese cabbage to the fertilizer can be effectively improved; the using amount of the fertilizer is reduced; the technology is green, environment-friendly and efficient by combining the application of the nano biomass charcoal material.
Drawings
FIG. 1 is a biomass statistical chart of Chinese cabbage treated in the sixth week according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1, a method for preparing a slow release fertilizer for Chinese cabbage based on a nano-scale biomass charcoal material includes
The preparation method of the Chinese cabbage slow release fertilizer specifically comprises the following steps:
firstly, preparing a biomass charcoal nano material;
n, K element loading;
preparing slow release fertilizer.
In the embodiment of the invention, in the first step, when preparing the biomass charcoal nano material, the corn stalks harvested in the same year are used as raw materials, and the corn stalk biomass charcoal material is fired at a high temperature of 650 ℃; and (3) forging the nano biomass charcoal material by an all-directional ball mill at 160 rpm for 4 hours.
In the embodiment of the invention, in the first step, N, K element is loaded, 2.1 g of calcium nitrate, 1.11 g of potassium sulfate and 0.05g of biomass carbon nano material are weighed, 1L of ultrapure water is added, and the components are uniformly mixed at the temperature of 60 ℃; then cooling to room temperature, and evaporating to dryness at constant temperature of 30 ℃; storing at 4 ℃.
In the embodiment of the invention, in the first step, when the slow release fertilizer is prepared, 100g of slow release fertilizer powder is weighed, 10 ml of triton-100 liquid is added, and the mixture is uniformly mixed; 1L of ultrapure water is added and stirred evenly for standby.
Example two
Referring to fig. 1, a method for preparing a slow release fertilizer for Chinese cabbage based on a nano-scale biomass charcoal material includes the following steps
The Chinese cabbage slow release fertilizer is applied, and specifically comprises the following components:
firstly, processing plant seedlings;
secondly, slow release fertilizer treatment;
thirdly, transplanting seedlings;
and fourthly, checking and accepting results.
In the embodiment of the invention, in the second step, when the plant seedlings are treated, the plants are treated by using plug trays with 72 holes and 540mm × 280mm, and after the 5 th true leaf of the seedling grows out, the seedling is ready to be treated and transplanted.
In the embodiment of the invention, in the second step, the slow release fertilizer is treated, the prepared slow release fertilizer solution is injected into the root ball by using a 5 ml injector; injecting for two times to ensure that the root ball is completely soaked by the modifying agent; then placing the seedlings on a hollow frame for standing without liquid drops and then transplanting the seedlings.
In the second step of the present invention, when transplanting seedlings, a seedbed with a size close to the size of the seedling root ball is prepared in the salinized or saline soil, the treated seedlings are transplanted into the salinized or saline soil, and then the soil is covered, so as to complete the process. In the subsequent treatment process, after the fifth true leaf grows out, the slow release fertilizer with the same concentration and the same amount is added for one time, and the additional fertilizer is not carried out in the rest time.
In the embodiment of the invention, in the second step, when the Chinese cabbage is checked and accepted, after the Chinese cabbage is completely mature, the growth of the Chinese cabbage treated by the nano-scale biomass carbon material slow release fertilizer can be found to be the same as the biomass and the quality of the Chinese cabbage subjected to normal fertilization.
EXAMPLE III
Referring to fig. 1, a method for preparing a slow release fertilizer for Chinese cabbage based on a nano-scale biomass charcoal material includes the following steps
I. Preparing a Chinese cabbage slow-release fertilizer:
the corn straw harvested in the same year is used as a raw material, and the corn straw biomass charcoal material is fired at a high temperature of 650 ℃; forging the nano biomass charcoal material by an omnibearing ball mill for 160 r/min for 4 hours;
weighing 2.1 g of calcium nitrate, 1.11 g of potassium sulfate and 0.05g of biomass carbon nano material, adding 1 liter of ultrapure water, and uniformly mixing the components at the temperature of 60 ℃; then cooling to room temperature, and evaporating to dryness at constant temperature of 30 ℃; storing at 4 deg.C;
weighing 100g of slow release fertilizer powder, adding 10 ml of triton-100 liquid, and uniformly mixing; 1L of ultrapure water is added and stirred evenly for standby.
II.
The plant is processed by adopting a plug tray with 72 holes and 540mm multiplied by 280mm, and is prepared for processing and transplanting after the 5 th true leaf of the seedling grows out;
injecting the prepared slow release fertilizer solution into the root ball by using a 5 ml injector; injecting for two times to ensure that the root ball is completely soaked by the modifying agent; then placing the seedlings on a hollow frame for standing without liquid drops and then transplanting the seedlings; the simultaneous treatment group comprises single nanometer biomass charcoal material treatment and chemical fertilizer treatment with the same concentration;
topdressing: the nano slow release fertilizer is applied for one time; the common fertilizer treatment is carried out once per week according to normal agricultural operation, and six times in total;
after six weeks, after the Chinese cabbage is completely mature, the growth quality of the Chinese cabbage treated by the nano-scale biomass carbon material slow release fertilizer is the same as that of the Chinese cabbage normally fertilized, and the biomass is improved.
The working principle is as follows: the nutrient elements are utilized by the growth of the Chinese cabbage to the maximum extent by the application of the biochar nano material and the quantitative control of nutrient components; greatly improves the utilization rate of the Chinese cabbage on nutrient elements, and not only can effectively improve the utilization rate of the Chinese cabbage on the nutrients; and the loss of fertilizer can be reduced, and the damage to the environment is reduced.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. A preparation method of a Chinese cabbage slow release fertilizer based on a nano-scale biomass charcoal material is characterized by comprising the following steps: comprises the following steps
Step one, preparing a Chinese cabbage slow release fertilizer, which comprises the following steps:
firstly, preparing a biomass charcoal nano material;
n, K element loading;
preparing slow release fertilizer;
step two, applying a Chinese cabbage slow release fertilizer, comprising the following steps:
firstly, processing plant seedlings;
secondly, slow release fertilizer treatment;
thirdly, transplanting seedlings;
and fourthly, checking and accepting results.
2. The method for preparing the Chinese cabbage slow release fertilizer based on the nano-scale biomass charcoal material as claimed in claim 1, which is characterized in that: in the first step, when preparing the biomass charcoal nano material, the corn straw harvested in the same year is used as a raw material, and the corn straw biomass charcoal material is fired at a high temperature of 650 ℃; and (3) forging the nano biomass charcoal material by an all-directional ball mill at 160 rpm for 4 hours.
3. The method for preparing the slow release fertilizer based on the nano-scale biomass charcoal material according to claim 1, which is characterized by comprising the following steps: in the first step, N, K element is loaded, 2.1 g of calcium nitrate, 1.11 g of potassium sulfate and 0.05g of biomass carbon nano material are weighed, 1 liter of ultrapure water is added, and the components are uniformly mixed at the temperature of 60 ℃; then cooling to room temperature, and evaporating to dryness at constant temperature of 30 ℃; storing at 4 ℃.
4. The method for preparing the slow release fertilizer based on the nano-scale biomass charcoal material according to claim 1, which is characterized by comprising the following steps: in the step one, when the slow release fertilizer is prepared, 100g of slow release fertilizer powder is weighed, 10 ml of triton-100 liquid is added, and the mixture is uniformly mixed; 1L of ultrapure water is added and stirred evenly for standby.
5. The method for preparing the Chinese cabbage slow release fertilizer based on the nano-scale biomass charcoal material as claimed in claim 1, which is characterized in that: in the second step, when the plant seedlings are treated, the plants are treated by adopting plug trays with 72 holes and 540mm multiplied by 280mm, and after the 5 th true leaf of the seedling grows out, the seedling is prepared for treatment and transplantation.
6. The method for preparing the Chinese cabbage slow release fertilizer based on the nano-scale biomass charcoal material according to claim 1, which is characterized by comprising the following steps of: in the second step, the slow release fertilizer is treated, and the prepared slow release fertilizer solution is injected into the root ball by using an injector; injecting for two times to ensure that the root ball is completely soaked by the modifying agent; then placing the seedlings on a hollow frame for standing without liquid drops and then transplanting the seedlings.
7. The method for preparing the Chinese cabbage slow release fertilizer based on the nano-scale biomass charcoal material as claimed in claim 1, which is characterized in that: in the second step, when transplanting seedlings, firstly preparing a seedbed with the size close to the root ball of the seedlings on the salinized or salinized soil, transplanting the treated seedlings into the salinized or salinized soil, covering the soil, and finishing the process; in the subsequent treatment process, after the fifth true leaf grows out, the slow release fertilizer with the same concentration and the same amount is added for one time, and the additional fertilizer is not carried out in the rest time.
8. The method for preparing the Chinese cabbage slow release fertilizer based on the nano-scale biomass charcoal material as claimed in claim 1, which is characterized in that: in the second step, when the acceptance result is checked, after the Chinese cabbage is completely mature, the biomass and the quality of the Chinese cabbage treated by the nano-scale biomass carbon material slow release fertilizer are the same as those of the Chinese cabbage normally fertilized.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102992855A (en) * | 2012-08-19 | 2013-03-27 | 上海孚祥生物科技有限公司 | Special slow-release fertilizer for Chinese cabbage by taking biomass granular charcoal as matrix and preparation method thereof |
| CN109809926A (en) * | 2019-04-12 | 2019-05-28 | 青岛农业大学 | A kind of Ca/Fe/GO/ biomass carbon, the dedicated charcoal slow-release fertilizer of corn and its application |
| CN109988018A (en) * | 2019-04-12 | 2019-07-09 | 青岛农业大学 | A kind of Fe/ graphene/biomass carbon, the dedicated carbon-base slow release compound fertilizer of corn and its application |
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- 2022-05-18 CN CN202210536679.0A patent/CN114907163A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102992855A (en) * | 2012-08-19 | 2013-03-27 | 上海孚祥生物科技有限公司 | Special slow-release fertilizer for Chinese cabbage by taking biomass granular charcoal as matrix and preparation method thereof |
| CN109809926A (en) * | 2019-04-12 | 2019-05-28 | 青岛农业大学 | A kind of Ca/Fe/GO/ biomass carbon, the dedicated charcoal slow-release fertilizer of corn and its application |
| CN109988018A (en) * | 2019-04-12 | 2019-07-09 | 青岛农业大学 | A kind of Fe/ graphene/biomass carbon, the dedicated carbon-base slow release compound fertilizer of corn and its application |
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Application publication date: 20220816 |