CN108821814B - Method for preparing organic fertilizer by taking chicken manure and tobacco waste as raw materials - Google Patents
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F3/00—Fertilisers from human or animal excrements, e.g. manure
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
- A01B79/02—Methods for working soil combined with other agricultural processing, e.g. fertilising, planting
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F5/00—Fertilisers from distillery wastes, molasses, vinasses, sugar plant or similar wastes or residues, e.g. from waste originating from industrial processing of raw material of agricultural origin or derived products thereof
- C05F5/002—Solid waste from mechanical processing of material, e.g. seed coats, olive pits, almond shells, fruit residue, rice hulls
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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
- C05G3/60—Biocides or preservatives, e.g. disinfectants, pesticides or herbicides; Pest repellants or attractants
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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
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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Abstract
The invention relates to the technical field of organic fertilizer preparation, in particular to a method for preparing an organic fertilizer by taking chicken manure and tobacco waste as raw materials.
Description
Technical Field
The invention relates to the technical field of organic fertilizer preparation, in particular to a method for preparing an organic fertilizer by taking chicken manure and tobacco waste as raw materials.
Background
In recent years, with the rapid development of large-scale livestock and poultry breeding industry, the livestock and poultry breeding industry is changed from scattered farmer breeding to intensive and industrialized breeding, and the yield of livestock and poultry manure is increased sharply. The livestock and poultry manure contains rich organic matters, nitrogen, phosphorus, potassium and other nutrients required by crops, and is a good organic fertilizer; however, the livestock and poultry manure is not suitable to be directly used as an organic fertilizer to be applied to the farmland, otherwise secondary fermentation is caused, oxygen in soil at the root of crops is consumed, high temperature is generated to burn the root systems of the crops, harmful substances with low molecular weight are generated, various pathogenic bacteria are introduced, the environment pollution of the farmland is caused, and even the water pollution is influenced, so that the livestock and poultry manure is required to be decomposed and ripened in the process of applying the livestock and poultry manure as the organic fertilizer. The chicken manure is one of the livestock and poultry manure, and due to the fact that undigested components and harmful flora contained in the chicken manure are high in the livestock and poultry manure, the chicken manure is directly fertilized in soil as an organic fertilizer, the harm caused by the high-concentration organic fertilizer is far higher than that caused by livestock and poultry manure such as pig manure, cow manure and duck manure, and the chicken manure is decomposed when being used as an organic fertilizer raw material.
At present, the rotten treatment of the chicken manure is mostly performed by stacking fermentation or fermentation treatment in a fermentation tank. During the stacking or fermentation process, microorganisms with strong antibacterial activity are formed, and the microorganisms with the antibacterial activity can kill plant pathogenic microorganisms. On the basis, in the process of preparing the organic fertilizer by taking the chicken manure as the organic fertilizer raw material, the organic fertilizer is mostly required to be stacked or subjected to secondary fermentation treatment in a fermentation tank, so that the chicken manure is decomposed and then used as the organic fertilizer for fertilization. However, with the continuous development of agricultural production technology, people have an ever-increasing living standard, and the quality requirements for organic fertilizers used in the agricultural production process are also higher, so that the organic fertilizers with diversified functions are rapidly developed, and researchers use tobacco waste as a raw material to be mixed with chicken manure to prepare organic fertilizers, such as: an organic fertilizer taking chicken manure and tobacco leaves as raw materials and a preparation method thereof, wherein the organic fertilizer is disclosed as patent application No. 201310734935.8. The organic fertilizer is prepared by taking the tobacco waste as a raw material, so that the nicotine component in the tobacco waste can realize the insecticidal effect, and meanwhile, the nicotine component can permeate into the plant body to poison pests, thereby achieving the insecticidal effect. However, in the prior art, in the technology of preparing the organic fertilizer by using the tobacco waste as the raw material, the tobacco waste is mostly directly added as the raw material, so that the nicotine content in the organic fertilizer is high, and the seedling emergence is easily influenced when the prepared organic fertilizer is used as the base fertilizer for crops. Based on this, researchers have studied the organic material decomposing agent in the process of preparing the organic fertilizer by using the tobacco waste as the raw material, and the organic material decomposing agent is added with bacillus thermophilus, arthrobacter nicotinovorans, actinomycetes and the like, so that the aim of reducing the nicotine content can be achieved when the organic material decomposing agent is used in the tobacco waste treatment process, for example, the organic material decomposing agent with the patent number of 201410288588.5, the biological organic fertilizer containing the tobacco waste, and the production method and the use method thereof. However, the insecticidal effective components in the organic fertilizer are greatly reduced, and the insecticidal effect of the organic fertilizer is not ideal.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention provides a method for preparing an organic fertilizer by taking chicken manure and tobacco waste as raw materials.
The method is realized by the following technical scheme:
one of the purposes of the invention is to provide a method for preparing organic fertilizer by taking chicken manure and tobacco waste as raw materials, which comprises the following steps:
(1) mixing tobacco waste with water, soaking, filtering, and concentrating the filtrate to obtain viscous substance; pulverizing the filter residue to obtain powder;
(2) stacking the chicken manure until the chicken manure is completely decomposed to obtain a decomposed chicken manure substance;
(3) mixing the chicken manure decomposed substance and the sticky substance according to the mass ratio of 2-5:1, uniformly stirring, placing in a granulator, and granulating to obtain granules A; taking chicken manure and powder according to a mass ratio of 3-7: 1-3, stirring uniformly, stacking and fermenting, preparing into slurry, spraying into a granulator, mixing with the granules A, granulating, drying and packaging. Through mixing and soaking of tobacco waste and water, partial components in the tobacco waste are dissolved in water solution, after filtering, concentrating and separating, filtrate and filter residues are respectively mixed with chicken manure, and through utilization of a spraying and coating technology in a granulator, the effect that the outer surface layer of organic fertilizer particles contains low-content nicotine is achieved, and in the whole organic fertilizer particles, the content of nicotine is increased from outside to inside, so that in the nutrient release process, the influence of nicotine on the emergence rate of crops can be relieved to a certain extent, the insect killing effect of the crop plant bodies after emergence is ensured to be improved, and the quality of the organic fertilizer is improved.
Preferably, in the step (2), during the process of stacking and fermenting the chicken manure to complete decomposition, one or more of sawdust, rice bran, cow manure, pig manure, sheep manure, Chinese medicine residues and plant straws are added into the chicken manure and mixed according to any mass ratio to form a mixture. Organic fertilizer nutrients can be fully supplemented, the quality is improved, the raw material sources are enriched, and the adopted traditional Chinese medicine residues, such as residues left after the extraction of traditional Chinese medicinal materials such as codonopsis pilosula, salvia miltiorrhiza, astragalus mongholicus, sophora flavescens and the like, greatly reduce the cost; the plant straw that is adopted can be the straw that traditional fertilizer preparation used, for example: corn stover, wheat straw, rape straw, and the like.
Preferably, in the step (2), the step of stacking the chicken manure to be completely decomposed is to convey the chicken manure into a fermentation tank for fermentation for 5-7 days, when the temperature of the fermentation material is raised to 60-70 ℃, the chicken manure is turned, and then the chicken manure is turned once every 3 days, and after 5-8 times of continuous turning, the water content is adjusted to 40-50%, so that the decomposed chicken manure is obtained. The method can ensure that the chicken manure is thoroughly decomposed by fermentation, reduce harmful flora in the chicken manure, and avoid secondary fermentation of the chicken manure.
Preferably, in the step (1), when the tobacco waste is mixed with water for soaking, the mass ratio of the tobacco waste to the water is 1: 1. Improve the soaking effect and reduce the concentration cost.
Preferably, in the step (1), the temperature is heated to be more than or equal to 30 ℃ during soaking. Improve the soaking effect and shorten the soaking time.
Preferably, in the step (1), the soaking time is 4-24 h. The soaking is sufficient, and the content of effective components in the slag is greatly reduced.
Preferably, in the step (3), the mass of the chicken manure for preparing the particles A is equal to that for preparing the slurry. The proportion of the mixing process is proper, and the thickness of the organic fertilizer is uniform.
Preferably, in the step (3), the slurry viscosity is 6000-10000 CPS. The difficulty of spraying granulation is reduced, and the molding is easy.
In the using process of the organic fertilizer, the organic fertilizer is mixed into soil after land leveling, and the mixing amount is 135-220 kg/mu. The organic fertilizer is preferably suitable for dry land.
The steps not fully described in the present invention can be performed by conventional methods of operation of those skilled in the art, or by related art methods disclosed in the prior art, such as: for the soaking mode of the tobacco waste, the temperature, time and the like of the soaking treatment, reference can be made to a method for extracting components in the tobacco, in particular to a method for extracting nicotine, for example, a burley nicotine extract with the patent application number of CN201610597872.X and the technology disclosed by the extraction technology, or a mode of directly mixing water and then soaking so as to dissolve the components in the tobacco waste into the water solution can be adopted, and in the process, ultrasonic auxiliary treatment can be adopted to improve the dissolution rate of the components in the tobacco waste; or crushing the tobacco waste into powder, and then adding water to the powder, mixing, soaking and extracting the powder, and the like. The process from stacking chicken manure to complete decomposition of the chicken manure is only an operation method which can ferment and decompose the chicken manure, and can be realized by referring to an organic fertilizer which takes the chicken manure and tobacco leaves as raw materials and a fermentation and decomposition process in a preparation method thereof, for example, with the patent application number of 201310734935.8.
Detailed Description
The technical solution of the present invention is further defined below with reference to the specific embodiments, but the scope of the claims is not limited to the description.
The tobacco waste used in the present invention refers to all the waste from the flue-cured tobacco, such as the stalk of the flue-cured tobacco, the plant parts except the tobacco leaves which can enter the production, the tobacco powder and the like, generated in the process from the planting to the processing of the tobacco into the cut tobacco.
Organic fertilizer preparation scheme example:
example 1
(1) Crushing tobacco waste into 120-mesh powder, mixing the powder with water according to the mass ratio of 1:1, soaking for 24 hours at 30 ℃, and filtering to obtain filtrate and filter residue; concentrating the filtrate to obtain viscous substance, and pulverizing the residue in pulverizer to obtain powder;
(2) collecting chicken manure, adjusting the water content to 50-60%, stacking in a normal temperature environment, fermenting, turning the chicken manure when the central temperature of the chicken manure pile reaches about 80 ℃, turning the chicken manure pile once every 3 days, continuously turning the chicken manure pile for 8 times, and adjusting the water content to 50% to obtain a thoroughly decomposed chicken manure;
(3) mixing 2 parts by weight of the chicken manure decomposed product and 1 part by weight of the sticky matter, uniformly stirring, placing in a granulator for granulation, and drying at 40-50 ℃ to obtain granules A; mixing 3 parts by weight of the decomposed chicken manure and 1 part by weight of the powder, uniformly stirring, stacking in a normal temperature environment, treating for 2 days, and adding water to prepare a slurry with the viscosity of 6000 CPS; spraying the slurry into a granulator, mixing with the granules A, granulating, drying at 40-50 deg.C until weight is not reduced obviously, and packaging.
Example 2
(1) Crushing tobacco waste into powder of 100 meshes, mixing the powder with water according to the mass ratio of 1:1, soaking for 24 hours at 50 ℃, and filtering to obtain filtrate and filter residue; concentrating the filtrate to obtain viscous substance, and pulverizing the residue in pulverizer to obtain powder;
(2) collecting chicken manure, adjusting the water content to 50-60%, stacking in a normal temperature environment, fermenting, turning the chicken manure when the central temperature of the chicken manure stack reaches about 70 ℃, turning the chicken manure stack once every 3 days, continuously turning the chicken manure stack for 5 times, and adjusting the water content to 40% to obtain a thoroughly decomposed chicken manure;
(3) mixing 5 parts by weight of the chicken manure decomposed product and 1 part by weight of the sticky matter, uniformly stirring, placing in a granulator for granulation, and drying at 40-50 ℃ to obtain granules A; mixing 3 parts by weight of the chicken manure decomposed product and 3 parts by weight of the powder, uniformly stirring, stacking in a normal temperature environment, treating for 5 days, and adding water to prepare a slurry with the viscosity of 8000 CPS; spraying the slurry into a granulator, mixing with the granules A, granulating, drying at 40-50 deg.C until weight is not reduced obviously, and packaging.
Example 3
(1) Crushing tobacco waste into powder of 80 meshes, mixing the powder with water according to the mass ratio of 1:1, soaking for 4 hours at 80 ℃, and filtering to obtain filtrate and filter residue; concentrating the filtrate to obtain viscous substance, and pulverizing the residue in pulverizer to obtain powder;
(2) collecting chicken manure, adjusting the water content to 50-60%, stacking in a normal temperature environment, fermenting, turning the chicken manure when the central temperature of the chicken manure stack reaches about 60 ℃, turning the chicken manure stack once every 3 days, continuously turning the chicken manure stack for 7 times, and adjusting the water content to 40% to obtain a thoroughly decomposed chicken manure;
(3) mixing 4 parts by weight of the chicken manure decomposed product and 1 part by weight of the sticky matter, uniformly stirring, placing in a granulator for granulation, and drying at 40-50 ℃ to obtain granules A; mixing 7 parts by weight of the decomposed chicken manure and 1 part by weight of the powder, uniformly stirring, stacking in a normal temperature environment, treating for 5 days, and adding water to prepare slurry with the viscosity of 7000 CPS; spraying the slurry into a granulator, mixing with the granules A, granulating, drying at 40-50 deg.C until weight is not reduced obviously, and packaging.
Example 4
On the basis of example 1, in the chicken manure treatment process in the step (2), saw dust accounting for 3% of the mass of the chicken manure and rice bran accounting for 7% of the mass of the chicken manure are added.
Example 5
On the basis of the embodiment 2, in the chicken manure treatment process in the step (2), corn straws accounting for 5 percent of the mass of the chicken manure and the residual medicine dregs after the extraction of astragalus accounting for 3 percent of the mass of the chicken manure are added.
Example 6
On the basis of example 3, in the treatment process of the chicken manure in the step (2), 30 percent of cow manure by mass of the chicken manure is added.
The results of the detection of the nicotine content and the organic matter content in the organic fertilizer prepared in examples 1 to 6 are shown in table 1 below:
TABLE 1
| Nicotine content (%) | Organic matter component content (%) | Total nitrogen (%) | Total phosphorus (%) | Whole potassium (%) | pH | |
| Example 1 | 1.63 | 61.4 | 1.7 | 0.6 | 5.1 | 6.7 |
| Example 2 | 1.59 | 62.3 | 1.9 | 0.8 | 4.9 | 6.6 |
| Example 3 | 1.74 | 62.1 | 1.8 | 0.7 | 5.0 | 6.7 |
| Example 4 | 1.49 | 64.5 | 1.8 | 0.7 | 4.8 | 6.5 |
| Example 5 | 1.52 | 65.1 | 1.6 | 0.6 | 4.9 | 6.6 |
| Example 6 | 1.61 | 65.7 | 1.8 | 0.7 | 5.0 | 6.5 |
The data in table 1 show that the prepared organic fertilizer has excellent quality, can meet the requirements of organic fertilizer NY525-2012 standards, has high nicotine content, and can be helpful for enhancing the insecticidal and insecticidal efficacy of crops, so that nicotine can permeate into plants to achieve the insect expelling effect.
Corn growth impact test
A fertilizer efficiency comparison test is carried out on the organic fertilizer prepared in the example 1-6 in a certain corn field in the State region of sowing in Zunyi city, and the test variety is No. 9 Yunrui. The experiment set up 8 treatments: treatment 1 was the organic fertilizer prepared in example 1; treatment 2 was the organic fertilizer prepared in example 2; treatment 3 was the organic fertilizer prepared in example 3; treatment 4 was the organic fertilizer prepared in example 4; treatment 5 was the organic fertilizer prepared in example 5; treatment 6 was the organic fertilizer prepared in example 6; the treatment 7 is an organic fertilizer prepared by directly mixing and fermenting the tobacco waste and the chicken manure; treatment 8 was a bio-organic fertilizer prepared using example 6 of patent No. 201410288588.5. The fertilizing area of each treatment group is 0.8-1.3 mu, the application method is that after the land is leveled, the land is fertilized into the soil and is evenly stirred, and the mixing amount of each treatment group is shown in the following table 2:
TABLE 2
The fertilization treatments are all used as base fertilizers, corn sowing is started after 5 days of mixing and stirring, and the corn emergence rate is counted when the seedling height reaches about 5cm after the corn is sowed and emerged; at the time of corn harvest, the plant height and plant stem circumference of corn were measured, and the results are shown in table 3 below:
TABLE 3
| Rate of emergence (%) | Plant height (cm) | Stem enclosure (cm) | |
| Process 1 | 93.5 | 213 | 2.15 |
| Treatment 2 | 92.7 | 215 | 2.19 |
| Treatment 3 | 93.6 | 212 | 2.22 |
| Treatment 4 | 94.1 | 214 | 2.17 |
| Treatment 5 | 95.2 | 209 | 2.23 |
| Treatment 6 | 94.3 | 211 | 2.18 |
| Treatment 7 | 73.5 | 218 | 2.21 |
| Treatment 8 | 80.6 | 211 | 2.14 |
The data in the table 3 show that the corn emergence rate can be obviously improved, the damage to the corn can be reduced, the nicotine content is high, and the plant weight can be kept to permeate into the plant in the subsequent growth process, so that the effects of expelling insects and killing insects can be achieved; the invention is realized by wrapping a shell layer with lower nicotine content under the action of guniting, so that the content of nicotine in the shell layer is higher, and the nicotine in the particles is gradually released along with the lapse of time, thereby achieving the purpose of continuously supplementing nicotine components to the soil while providing nutrients.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A method for preparing an organic fertilizer for corn by taking chicken manure and tobacco waste as raw materials is characterized by comprising the following steps:
(1) mixing tobacco waste with water, soaking, filtering, and concentrating the filtrate to obtain viscous substance; pulverizing the filter residue to obtain powder;
(2) stacking the chicken manure until the chicken manure is completely decomposed to obtain a decomposed chicken manure substance;
(3) mixing the chicken manure decomposed substance and the sticky substance according to the mass ratio of 2-5:1, uniformly stirring, placing in a granulator, and granulating to obtain granules A; taking chicken manure and powder according to a mass ratio of 3-7: 1-3, uniformly stirring, stacking and fermenting, preparing into slurry, spraying into a granulator, mixing with the granules A, granulating, drying and packaging, wherein the nicotine in the prepared organic fertilizer is improved from inside to outside.
2. The method of claim 1, wherein in the step (2), during the process of stacking and fermenting the chicken manure to complete decomposition, one or more of sawdust, rice bran, cow manure, pig manure, sheep manure, Chinese medicine residues and plant straws are added into the chicken manure and mixed according to any mass ratio to form a mixture.
3. The method of claim 1 or 2, wherein in the step (2), the chicken manure is stacked until the chicken manure is completely decomposed by conveying the chicken manure into a fermentation tank, fermenting for 5-7 days, turning the chicken manure when the temperature of the fermented material is raised to 60-70 ℃, then turning the chicken manure once every 3 days, continuously turning the chicken manure for 5-8 times, and adjusting the moisture content to 40-50% to obtain the chicken manure decomposed product.
4. The method according to claim 1, wherein in the step (1), the tobacco waste and the water are mixed and soaked in the mixing manner, and the mass ratio of the tobacco waste to the water is 1: 1.
5. The method according to claim 1 or 4, wherein in step (1), the soaking is carried out by heating to a temperature of 30 ℃ or higher.
6. The method according to claim 1 or 4, wherein in step (1), the soaking time is 4-24 h.
7. The method of claim 1, wherein in step (3), the amount of chicken manure used for the preparation of granule a is equal to the amount of chicken manure used for the preparation of the slurry.
8. The method as claimed in claim 1 or 7, wherein in step (3), the slurry viscosity is 6000-.
9. The organic fertilizer for corn prepared by the method of any one of claims 1 to 8.
10. The method for using the organic fertilizer for corn as claimed in claim 9, wherein the organic fertilizer is mixed into the soil after leveling the land, and the mixing amount is 135-220 kg/mu.
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| CN110483187B (en) * | 2019-09-24 | 2021-10-08 | 成都市四友生物科技有限公司 | Tobacco powder biological organic fertilizer for inhibiting crop diseases and insect pests |
| CN112830852A (en) * | 2019-11-22 | 2021-05-25 | 灵宝市朝阳生物科技有限责任公司 | Organic fertilizer with insect expelling effect and preparation method and application thereof |
| CN111995441A (en) * | 2020-07-23 | 2020-11-27 | 梅州市青塘实业有限公司 | Method for preparing organic fertilizer and liquid insect repellent |
| CN114292141A (en) * | 2022-01-11 | 2022-04-08 | 河北省中医药科学院 | Traditional Chinese medicine waste residue bio-organic fertilizer suitable for Chinese yam and preparation method thereof |
| CN115316098A (en) * | 2022-08-19 | 2022-11-11 | 甘肃省农业科学院旱地农业研究所 | Efficient dry land radix codonopsis fertilization method based on ecological chemometrics |
| CN115403428A (en) * | 2022-09-30 | 2022-11-29 | 石家庄市农林科学研究院 | Tobacco waste bio-organic fertilizer and preparation method thereof |
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| CN105523843A (en) * | 2016-01-08 | 2016-04-27 | 太和县鼎恒有机肥有限公司 | Nuisance-free drug-coated organic fertilizer and preparation method thereof |
| CN105948960A (en) * | 2016-05-03 | 2016-09-21 | 广东省农业科学院植物保护研究所 | Composite natural drug nicotine fertilizer and preparation method thereof |
| CN108395358A (en) * | 2018-06-04 | 2018-08-14 | 山西省农业科学院果树研究所 | A kind of planting fruit trees compound fertilizer and preparation method thereof |
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