CN111646853A - Modified biomass charcoal base fertilizer and preparation method thereof - Google Patents
Modified biomass charcoal base fertilizer and preparation method thereof Download PDFInfo
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- CN111646853A CN111646853A CN202010619363.9A CN202010619363A CN111646853A CN 111646853 A CN111646853 A CN 111646853A CN 202010619363 A CN202010619363 A CN 202010619363A CN 111646853 A CN111646853 A CN 111646853A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
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- 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
- C05G3/20—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for preventing the fertilisers being reduced to powder; Anti-dusting additives
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- 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
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- 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
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- 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
- C05G3/90—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting the nitrification of ammonium compounds or urea in the soil
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- 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
- C05G5/12—Granules or flakes
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- 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
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- 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
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- 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 modified biomass charcoal base fertilizer and a preparation method thereof. The biomass charcoal powder mainly comprises the following components, by weight, 5-40 parts of modified biomass charcoal powder and 10-20 parts of diammonium phosphate; 20-25 parts of urea; 6-10 parts of potassium chloride; 1-6 parts of a binder; 10-50 parts of filling material, and is prepared by crushing, mixing and granulating by a fertilizer granulator. According to the invention, the biomass carbon powder is modified, so that the pH value can be effectively reduced, and the fertilizer efficiency cannot be reduced after the biomass carbon powder is mixed with an alkaline fertilizer; the raw materials are cheap and easy to obtain, the preparation process is simple, the nutrient release period is long, the soil fertility can be maintained for a long time, and the modified biomass charcoal base fertilizer is a novel efficient and environment-friendly fertilizer.
Description
Technical Field
The invention relates to the field of agricultural fertilizers, in particular to a modified biomass charcoal base fertilizer and a preparation method thereof.
Background
In recent years, the application amount of chemical fertilizers in China is rapidly increased along with the development of agriculture. According to statistics, the application amount of the fertilizer for crops in China has increased by more than 2 times from 2590.3 ten thousand tons in 1990 to 5653.4 ten thousand tons in 2018 in recent thirty years. Although the season utilization rate of nitrogen, phosphorus and potassium fertilizers is improved in recent years, the season utilization rate of nitrogen, phosphorus and potassium fertilizers has a large gap compared with developed countries in the world. Excessive application of the fertilizer not only can cause the problems of soil acidification, hardening and the like, but also can bring great negative effects to the ecological environment, such as water eutrophication, greenhouse gas emission and the like. In order to solve a series of energy and environmental problems caused by fertilizer application in the current agriculture and promote agricultural sustainable development, the Ministry of agriculture in 2015 sets a' zero-increase action scheme for fertilizer usage in 2020, and proposes to strive for zero increase in fertilizer usage of main crops in 2020. Therefore, how to develop an environment-friendly novel efficient fertilizer by means of materials and technologies is particularly important for sustainable development of agriculture in China.
The biomass charcoal is a carbon-rich organic substance obtained by high-temperature thermal cracking of biomass under anaerobic conditions, has a rich pore structure, and has a plurality of functional groups on the surface. Research shows that the application of biomass charcoal can improve soil structure, improve water and fertilizer retention capacity of soil, reduce greenhouse gas emission, and improve crop yield (zhan bin, liu xiao yu, pangen, etc.. after the application of biomass charcoal, the changes of soil properties of paddy field, rice yield and trace greenhouse gas emission [ J ]. China agricultural science, 2012, 45(23): 4844-4853). The charcoal-based fertilizer is a novel fertilizer prepared by using biomass charcoal as an additive material and a fertilizer raw material together. The existing research shows that the carbon-based fertilizers prepared from biomass carbon such as straw, pig manure, peanut shell and the like can obviously improve the crop yield and the nitrogen utilization rate (Qiaogonggang, Fujiaying, Zhengjinwei, and the like. the influence of different carbon-based fertilizers on the growth, the quality and the nitrogen agronomic utilization rate of green pepper [ J ] soil report 2014, 45(1): 174 and 179). However, as the biomass charcoal belongs to an alkaline substance, the pH value of the biomass charcoal is generally between 8 and 10, and the fertilizer efficiency is often reduced by directly mixing the biomass charcoal with a physiological acid fertilizer, the pH value of the biomass charcoal is reduced to be neutral or alkalescent by a modification means on the premise of not damaging functional groups of the biomass charcoal, and the biomass charcoal is mixed with a chemical fertilizer to prepare a modified biomass charcoal-based fertilizer, so that the modified biomass charcoal-based fertilizer can play a certain role in soil improvement while the nutrient release period is delayed, and a new idea is provided for resource utilization of agricultural wastes.
Disclosure of Invention
The invention provides a modified biomass charcoal base fertilizer and a preparation method thereof, aiming at the problems that the prior fertilizer is excessively applied, the resource utilization of agricultural and forestry wastes is difficult, and the biomass charcoal has high pH value and causes certain loss to the release of nutrients of common fertilizers, so as to achieve the aims of improving the fertilizer efficiency, improving the soil and effectively treating the agricultural and forestry wastes.
The invention provides a modified biomass charcoal base fertilizer which is prepared from the following components in parts by weight: 5-40 parts of modified biomass carbon powder; 10-20 parts of diammonium phosphate; 20-25 parts of urea; 6-10 parts of potassium chloride; 1-6 parts of a binder; 10-50 parts of filling material.
The modified biomass charcoal base fertilizer is prepared from at least one of the following components in parts by weight:
1.5 parts of modified biomass carbon powder; 16.7 parts of diammonium acid; 20.3 parts of urea; 8.4 parts of potassium chloride; 5 parts of a binder; 44.6 parts of filler;
2. 10 parts of modified biomass carbon powder; 16.7 parts of diammonium phosphate; 20.3 parts of urea; 8.4 parts of potassium chloride; 4 parts of a binder; 40.6 parts of a filling material;
3. 20 parts of modified biomass carbon powder; 16.7 parts of diammonium phosphate; 20.3 parts of urea; 8.4 parts of potassium chloride; 3 parts of a binder; 31.6 parts of a filling material;
4. 40 parts of modified biomass carbon powder; 16.7 parts of diammonium phosphate; 20.3 parts of urea; 8.4 parts of potassium chloride; 4 parts of a binder with mass concentration; 10.6 parts of filling material;
5. 5-40 parts of modified biomass carbon powder; 10-20 parts of diammonium phosphate; 20-25 parts of urea; 6-10 parts of potassium chloride; 1-6 parts of a binder; 10-50 parts of filling material.
In the modified biomass charcoal-based fertilizer, the modified biomass charcoal is obtained by modifying at least one of rice straw charcoal, rice hull charcoal, wheat straw charcoal, corn straw charcoal, fruit charcoal and peanut hull charcoal;
the binder is at least one of oxidized starch, polyacrylamide, polyvinyl alcohol and sodium alginate;
the filler is at least one of kaolin, bentonite, clay and talcum powder.
In the modified biomass charcoal base fertilizer, the preparation method of the modified biomass charcoal comprises the following steps: step a: carbonizing at least one of rice straw, rice hull, wheat straw, corn straw, fruit sawdust and peanut shell under anaerobic condition, cooling, pulverizing, and sieving with 100-mesh and 200-mesh sieve; step b: and modifying the biomass charcoal.
The mass concentration of the aqueous solution of the binder is 3-10%.
The carbonization temperature under the anaerobic condition is 250-700 ℃, and the carbonization time is 2-4 h; the biomass charcoal modification method is an acid soaking method, and at least one of wood vinegar stock solution, 2% sulfuric acid and 2% hydrochloric acid is soaked for 24-48 h.
In the modified biomass charcoal-based fertilizer, the particle size of the modified biomass charcoal-based fertilizer can be 2-4mm, and specifically can be 2.5 mm.
The invention also provides a preparation method of the modified biomass charcoal-based fertilizer, which comprises the following steps:
step a: weighing the components of the diammonium phosphate, the urea, the potassium chloride and the filler according to the component proportion;
step b: and mixing the modified biomass charcoal with the components, spraying a binder solution, granulating and molding by adopting a granulation process, and drying to obtain the modified biomass charcoal base fertilizer.
In the method, the granulating process adopts a disk granulator or a double-roller extrusion granulator.
The invention further provides a use method of the modified biomass charcoal base fertilizer, which comprises the following steps: the modified biomass charcoal base fertilizer is applied to field crops or economic crop fields as a base fertilizer or a top dressing.
When the fertilizer is used for long-term fertilization of farmland crops, the fertilizer can be used as a base fertilizer or an additional fertilizer independently, and can also be mixed with other fertilizers or organic fertilizers for application according to the nutrient absorption rule of the crops.
The invention has the following advantages:
the modified biomass charcoal base fertilizer is a novel efficient and environment-friendly fertilizer, and the effectiveness of the fertilizer cannot be reduced after the modified biomass charcoal is mixed with a physiological acid fertilizer. The invention has the advantages of cheap and easily obtained raw materials, simple preparation process and long nutrient release period, can effectively maintain soil fertility and improve soil, and is an effective way for recycling agricultural wastes.
Drawings
The invention is described in further detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 shows the cumulative release (%) of fertilizer nitrogen.
FIG. 2 is a graph showing the effect of different fertilization treatments on pepper yield.
FIG. 3 shows the contents of the components in the soil after the pepper is picked.
FIG. 4 is a test of water retention performance of modified biomass base fertilizer.
Detailed Description
The present invention will be described in further detail with reference to FIGS. 1-4
The materials referred to in the following examples, unless otherwise specified, are commercially available.
Example 1 preparation of modified Biomass charcoal-based Fertilizer
Firstly, rice hulls are carbonized for 3 hours at 400 ℃ under the anaerobic condition, are cooled, are crushed and pass through a 100-mesh sieve, the obtained biomass charcoal powder is soaked in wood vinegar stock solution for 36 hours, and are taken out, filtered and dried. Then weighing 100g of modified biomass carbon powder, 167g of diammonium phosphate, 203g of urea, 84g of potassium chloride and 406g of kaolin, uniformly mixing, pouring into a disc granulator, setting the disc inclination angle at 45 degrees, rotating speed at 45r/min and temperature at 50 ℃, simultaneously spraying 40g of 3% polyacrylamide aqueous solution by using a high-pressure spray head, drying and taking out after granulation is finished, and obtaining granular fertilizer with the average particle size of 2.5mm, thus obtaining the modified biomass carbon-based fertilizer.
Example 2 preparation of modified Biomass charcoal-based Fertilizer
Firstly, carbonizing corn straws for 3h in an environment of 400 ℃ under an anaerobic condition, cooling, crushing, sieving by a 100-mesh sieve, soaking the obtained biomass charcoal powder in wood vinegar stock solution for 36h, taking out, filtering and drying. Then weighing 200g of modified biomass carbon powder, 167g of diammonium phosphate, 203g of urea, 84g of potassium chloride and 316g of kaolin, uniformly mixing, pouring into a disc granulator, setting the disc inclination angle at 45 degrees, rotating speed at 45r/min and temperature at 50 ℃, simultaneously spraying 30g of 6% sodium alginate aqueous solution by using a high-pressure spray head, drying and taking out after granulation is finished, and obtaining granular fertilizer with the average particle size of 2.5mm, thus obtaining the modified biomass carbon-based fertilizer.
Example 3 preparation of modified Biomass charcoal-based Fertilizer
Firstly, carbonizing wheat straws for 3.5h at 300 ℃ under an anaerobic condition, cooling, crushing, sieving with a 100-mesh sieve, soaking the obtained biomass carbon powder in a 2% sulfuric acid solution for 30h, taking out, filtering and drying. Then weighing 400g of modified biomass carbon powder, 167g of diammonium phosphate, 203g of urea, 84g of potassium chloride and 106g of bentonite, uniformly mixing, uniformly spraying 40g of 10% oxidized starch water solution by using a spray can, pouring the uniformly mixed raw materials into a double-roller type extrusion granulator for granulation, setting the rotation speed of the granulator to be 20r/min, taking out and drying after the granulation is finished, and obtaining granular fertilizer with the particle size of 2.5mm, thus obtaining the modified biomass carbon-based fertilizer.
The application effect detection of the modified biomass charcoal base fertilizer of the invention comprises the following steps:
1. detection of sustained Release Performance
The slow release performance of the fertilizer to be tested adopts a still water culture method, the water temperature is 25 ℃, about 5g (weighed to 0.01 g) of the modified biomass charcoal base fertilizer to be tested and the common fertilizer sold in the market are respectively weighed and put into a small bag made of a nylon gauze with 100 meshes, after the small bag is sealed, the small bag is put into a 150ml glass bottle or plastic bottle, 100ml of water is added, the small bag is sealed by a cover and is respectively placed in a biochemical constant temperature incubator with the temperature of 25 ℃, and the process is repeated for 5 times. And during sampling, the bottle is turned upside down for 3 times to ensure that the liquid concentration in the bottle is consistent, the bottle is moved into a 100ml volumetric flask, and the volume is fixed to a scale after the bottle is cooled to room temperature for measuring nutrients. Then, 100ml of water was added to the bottle containing the small sample bag, and the bottle was sealed with a lid and placed in a biochemical incubator for further culture. Sampling time is 1d, 2d, 3d, 5d, 7d, 10d, 13d, 20d and 28d, and the nitrogen dissolution rate of the sample is analyzed and determined.
The results of the slow release performance measurement are shown in table 1, and it can be known from the table that the modified biomass charcoal-based fertilizer of the invention can effectively delay the release rate of nutrients and has a slow release effect.
2. Pepper yield increase
By using a pot experiment, the yield increasing effect of the modified biomass charcoal-based fertilizer on the pepper is detected: selecting a circular flowerpot with the diameter of 20cm and the height of 40cm, filling 8kg of air-dried soil sieved by 0.5mm, transplanting a pepper seedling in each pot, and before transplanting, according to N, P2O5、K2O is respectively 2 g, 1g and 1.5g, the fertilizer is applied to each kilogram of soil, meanwhile, the fertilizer is not applied for comparison, and the treatment is repeated for 5 times. When the peppers are collected, the yield of each flowerpot is calculated independently.
The yield increasing effect of the modified biomass charcoal base fertilizer on pepper is shown in figure 1, and the figure shows that the modified biomass charcoal base fertilizer has a certain effect of improving the yield of pepper.
3. Detection of the enhancing action of soil fertility
After the peppers are picked, soil samples in all the pots are collected respectively, and total organic carbon, total nitrogen, available phosphorus and quick-acting potassium are measured.
The results of the effect of the fertilizer tested on the improvement of soil fertility are shown in table 2, and it is understood from the table that the fertilizer of the present invention has a certain effect on the improvement of soil nutrient content.
4. Detection of Water Retention Performance
Adopting a PVC pipe with the length of 70cm and the diameter of 10cm, filling 2kg of PVC pipe, drying soil after passing through a 0.1mm sieve, adding pure water until the soil moisture reaches a saturated state, standing for 24h, weighing 5.000g of biomass charcoal-based fertilizer to be tested, burying the biomass charcoal-based fertilizer into a soil layer at the depth of 20cm, adding 1000mL of pure water at 1 st, 2 nd, 3 th, 4 th, 6 th, 8 th, 12 th, 20 th and 24 th days respectively, receiving the PVC pipe leaching water by using a funnel, measuring the volume of the leaching water by using a measuring cylinder, using common fertilizers with equal mass as a reference, and setting 5 times of repetition for each treatment.
The influence of the tested fertilizer on the water retention performance of the soil is shown in table 3, and it can be seen from the table that the invention can increase the water retention effect of the soil.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and that various changes, modifications, additions and substitutions which are within the spirit and scope of the present invention and which may be made by those skilled in the art are also within the scope of the present invention.
Claims (10)
1. A modified biomass charcoal base fertilizer and a preparation method thereof are disclosed, which comprises the following components in parts by weight: 5-40 parts of modified biomass carbon powder; 10-20 parts of diammonium phosphate; 20-25 parts of urea; 6-10 parts of potassium chloride; 1-6 parts of a binder; 10-50 parts of filling material.
2. The modified biomass charcoal base fertilizer and the preparation method thereof according to claim 1, characterized in that: the modified biomass charcoal is obtained by modifying at least one of rice straw charcoal, rice hull charcoal, wheat straw charcoal, corn straw charcoal, fruit charcoal and peanut hull charcoal; the binder is formed by dissolving at least one of oxidized starch, polyacrylamide, polyvinyl alcohol and sodium alginate in water; the filler is at least one of kaolin, bentonite, clay and talcum powder.
3. The modified biomass charcoal base fertilizer and the preparation method thereof according to claim 2, characterized in that: the preparation method of the modified biomass charcoal comprises the following steps: step a: carbonizing at least one of rice straw, rice hull, wheat straw, corn straw, fruit sawdust and peanut shell under anaerobic condition, cooling, pulverizing, and sieving with 100-mesh and 200-mesh sieve; step b: and modifying the biomass charcoal.
4. The modified biomass charcoal base fertilizer and the preparation method thereof according to claim 2, characterized in that: the mass concentration of the aqueous solution of the binder is 3-10%.
5. The modified biomass charcoal base fertilizer and the preparation method thereof according to claim 3, characterized in that: the carbonization temperature under the anaerobic condition is 250-700 ℃, and the carbonization time is 2-4 h; the biomass charcoal modification method is an acid soaking method, the solution of the acid soaking method is at least one of wood vinegar stock solution, 2% sulfuric acid and 2% hydrochloric acid, and the soaking time is 24-48 h.
6. The modified biomass charcoal base fertilizer and the preparation method thereof according to claim 3, characterized in that: the particle size of the modified biomass charcoal-based fertilizer is 2-4 mm.
7. The preparation method of the modified biomass charcoal-based fertilizer according to claim 1, characterized by comprising the following steps: step a: weighing the components according to the component proportion of the modified biomass charcoal-based fertilizer according to any one of claims 1 to 6;
step b: and mixing the modified biomass charcoal with the components, spraying a binder solution, granulating and molding by adopting a granulation process, and drying to obtain the modified biomass charcoal base fertilizer.
8. The preparation method of the modified biomass charcoal-based fertilizer according to claim 7, characterized by comprising the following steps: step A: carbonizing at least one of rice straw, rice hull, wheat straw, corn straw, fruit sawdust and peanut shell under anaerobic condition, cooling, pulverizing, and sieving with 100-mesh and 200-mesh sieve;
and B: and modifying the biomass charcoal.
The carbonization temperature under the anaerobic condition is 250-700 ℃, and the carbonization time is 2-4 h;
the biomass charcoal modification method is an acid soaking method, the solution of the acid soaking method is at least one of wood vinegar stock solution, 2% sulfuric acid and 2% hydrochloric acid, and the soaking time is 24-48 h.
9. The preparation method of the modified biomass charcoal-based fertilizer according to claim 7, characterized by comprising the following steps: the granulating process adopts at least one of a disk granulator and an extrusion granulator.
10. The modified biomass charcoal base fertilizer and the preparation method thereof according to claim 1, characterized in that: the modified biomass charcoal base fertilizer is applied to field crops or economic crop fields as a base fertilizer or a top dressing.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110683895A (en) * | 2019-10-11 | 2020-01-14 | 天津大学 | Nutrient controlled-release method based on hydrothermal carbon fertilizer |
| CN113528143A (en) * | 2021-07-08 | 2021-10-22 | 华中农业大学 | Rice hull ash powder composite material, and granulation method and application thereof |
| CN114591747A (en) * | 2022-02-28 | 2022-06-07 | 中国科学院南京土壤研究所 | Surface functional group amplification biomass charcoal and preparation method and application thereof |
| CN114988389A (en) * | 2022-06-16 | 2022-09-02 | 江苏科溪蔓生物科技有限公司 | Biomass efficient hydrothermal integrated carbonization process and application of product thereof in preparation of carbon-based organic fertilizer mulching film |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110683895A (en) * | 2019-10-11 | 2020-01-14 | 天津大学 | Nutrient controlled-release method based on hydrothermal carbon fertilizer |
| CN113528143A (en) * | 2021-07-08 | 2021-10-22 | 华中农业大学 | Rice hull ash powder composite material, and granulation method and application thereof |
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| CN114988389A (en) * | 2022-06-16 | 2022-09-02 | 江苏科溪蔓生物科技有限公司 | Biomass efficient hydrothermal integrated carbonization process and application of product thereof in preparation of carbon-based organic fertilizer mulching film |
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