WO1993000312A1 - Process for the preparation of granular plant nutrient compositions based on earthworm-produced humus - Google Patents
Process for the preparation of granular plant nutrient compositions based on earthworm-produced humus Download PDFInfo
- Publication number
- WO1993000312A1 WO1993000312A1 PCT/HU1991/000029 HU9100029W WO9300312A1 WO 1993000312 A1 WO1993000312 A1 WO 1993000312A1 HU 9100029 W HU9100029 W HU 9100029W WO 9300312 A1 WO9300312 A1 WO 9300312A1
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- WO
- WIPO (PCT)
- Prior art keywords
- earthworm
- weight
- humus
- produced
- mixture
- Prior art date
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F9/00—Fertilisers from household or town refuse
- C05F9/04—Biological compost
-
- 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
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
-
- 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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
- Y02P20/145—Feedstock the feedstock being materials of biological origin
Definitions
- the present invention relates to the preparation of granular plant nutrient compositions based on earthworm-produced humus.
- BACKGROUND ART The demands set against nutrient compositions used for supplementing the nutrient content of soil are well- known both from literature and practice. These demands include primarily complexity (high organic nutrient content in addition to inorganic nutrients), high macro- and trace element content, microorganism content facilitating humus formation and incorporation of nutrients into the plants and granular physical structure.
- the organic component is huminic acid extracted from peat after treating the same with ammonium sulfite.
- French patent specification No. 2,028,771 describes such fertilizer mixture which comprises a small amount of huminic acid derived from peat as organic component, however the composition does not contain any trace element.
- Hungarian patent specification No. 157,566 describes a process wherein the organic component of the granular fertilizer is urea.
- Hungarian patent specification No. 167,322 the preparation of a fertilizer composition comprising mainly ammonium nitrate is described in the course of which potassium and boron ions are incorporated into the crystals of ammonium nitrate. According to Austrian patent specification No.
- a mixture of inorganic and organic substances, suitable for fertilizing soil is prepared by suspending manure in water, acidified with mineral acids,together with mineral salts. After standing the suspension is neutralized by calcium oxide and the substance thus obtained is concentrated and dried optionally after the addition of solid fertilizer.
- the characteristic feature of the second group of the complex fertilizers is that the main portion of the composition is an organic substance which is supplemented with smaller or higher amount of inorganic nutrients.
- Hungarian patent specification No. 184,857 describes a process for the preparation of granular or powder organic fertilizers of improved bioactivity.
- a complex fertilizer composed of mainly fecal supplemented with alkaline metal humates and huminchelates of plant trace nutrients and optionally with trace nutrients.
- the access to the basic material is restricted and the microorganisms facilitating the formation of humus are killed during the disinfection.
- the favourable physical structure of the composition can be assured if the substance thus obtained is subjected to further treatments (granulation, powdering), which significantly increase the costs of the process.
- Our aim was to eliminate the drawbacks of the known processes and to work out a process for the preparation of a granular composition in a very simple manner, which does not require the expensive, time- consuming granulation step after the mixing of the pre- treated components.
- An other aim was to work out a granular nutrient composition wherein the quantity and quality of the nutrient elements can be controlled according to the demands of the plant to be fertilized and which has a granular structure resistant to physical effects and water.
- a futher aim was to assure the presence of humifying microorganisms in the nutrient compositions obtained by the process without disinfecting the basic materials then inoculating the mixture with humifying microorganisms.
- the present invention is based on the recognition that the humates which can be dissolved from humus produced by earthworms are able to stick the organic and/or inorganic nutrient substances. By using the said sticking ability, plant nutrients of different quantity and quality can be bound to the humin substances being ⁇ inside and on the surface of the earthworm-produced humus granules.
- the present invention is based on the further recognition that the complexes thus obtained form a layer being resistant even to physical effects after - solidification, while the nutrient composition thus obtained retains the granular structure of earthworm- produced humus and also comprises the microorganisms characteristic for the earthworm-produced humus.
- a sticking material is prepared from earthworm-produced humus by alkaline pre-treat ent and setting of the humidity content thereof. By the alkaline pre-treatment the humates are recovered from the earthworm-produced humus.
- the sticking C material thus prepared is mixed • with plant nutrient substances and earthworm-produced humus of desired quantity and the granules thus formed are dried until the desired humidity content thereof, preferably that humidity content which assures the stable physical structure of the granules, is achieved.
- plant nutrient compositions based on earthworm-produced humus are prepared by stirring the earthworm-produced humus with an 0 alkaline substance in an amount of 5 to 30 % by weight calculated for the earthworm-produced humus, then setting the humidity content of the mixture thus obtained to 70 to 80 % by weight, leaving the mixture to stand for 1 to 12 hours, then mixing the same with trace- or macronutrients of an amount of 5 to 1000 % by weight and with earthworm-produced humus of 20 to 1000 % by weight calculated for the weight of the mixture and drying the granules thus obtained.
- potassium- or ammonium hydroxide is used as alkali.
- chemical fertilizer comprising nitrogen and/or potassium and/or phosphor is used as macronutrient substance.
- urea and/or potassium chloride and/or ammonium hydroxide and/or superphosphate is used as chemical fertilizer.
- zinc, manganese, copper and/or molybdenum salts are used as trace nutrients.
- the stirring is followed until a granule size of 0.1 to 10.0 mm is achieved.
- the granules are dried until their humidity content reaches the 60 to 90 % by weight.
- - Earthworm-produced humus is used as the basic material of the process, therefore the nutrient compositions thus obtained are favourable from enviroment protection point of view.
- the organic substance content of the nutrient compositions prepared according to the process of the invention is similar to the humus fractions of soil.
- the macro- and trace element content of the nutrient compositions produced by the process of the invention can be adapted to the demands of the plant to be fertilized and to the aim of fertilization.
- the nutrient compositions produced by the process of the invention comprise certain nutrient elements in the form of hu in chelates, therefore they stimulate the plant metabolism.
- the nutrient composition produced by the process of the invention is of granular structure without adding any additive and/or additional treatment.
- compositions produced according to the process of the invention comprise the microorganisms characteristic for the earthworm-produced humus, thus
- Example 1 The invention is illustrated by the further non- 30 limiting examples.
- Example 1 The invention is illustrated by the further non- 30 limiting examples.
- composition of the substance is as follows: Dry substance content 80.0 % by weight
- the composition of the substance is as follows: Dry substance content 80.0 % by weight
- Nitrogen content 8.0 % by weight x P (P 2 0 5 ) 0.6 % by weight x
- composition of the substance is as follows: Dry substance content 80.0 % by weight
- 25 kg of granulated potassium hydroxide are mixed to 50 kg of earthworm-produced humus, then the mixture is wetted to a humidity content of 75 % and left to stand for 5 6 hours.
- Dry substance content 80.0 % by weight
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
The present invention relates to a process for the preparation of plant nutrient compositions based on earthworm-produced humus by stirring the earthworm-produced humus with an alkaline substance in an amount of 5 to 30 % by weight calculated for the earthworm-produced humus, then setting the humidity content of the mixture thus obtained to 70 to 80 % by weight, leaving the mixture to stand for 1 to 12 hours, then mixing the same with trace- or macronutrients of an amount of 5 to 1000 % by weight and with earthworm-produced humus of 20 to 1000 % by weight calculated for the weight of the mixture and drying the granules thus obtained.
Description
PROCESS FOR THE PREPARATION OF GRANULAR PLANT NUTRIENT COMPOSITIONS BASED ON EARTHWORM-PRODUCED HUMUS
TECHNICAL FIELD
The present invention relates to the preparation of granular plant nutrient compositions based on earthworm-produced humus. BACKGROUND ART The demands set against nutrient compositions used for supplementing the nutrient content of soil are well- known both from literature and practice. These demands include primarily complexity (high organic nutrient content in addition to inorganic nutrients), high macro- and trace element content, microorganism content facilitating humus formation and incorporation of nutrients into the plants and granular physical structure.
In order to meet these demands several processes were worked out. Those processes can be classified to the first group of such processes which enable the manufacture of nutrient compositions composed of mainly inorganic substances. The said compositions comprise the most important macro- and optionally trace elements in the form of inorganic salts or in the modern compositions, in the form of chelates formed with organic anions. According to Hungarian patent specification No. 170,791 a fertilizer suspension comprising nitrogen, phosphor and potassium
(further on NPP) is described wherein the condensate of urea and formaldehyde, having a retarded effect, is used for supplementing of the nitrogen content of soil. In the liquid leaf fertilizer according to Hungarian patent specification No. 174,081 the organic component is huminic acid extracted from peat after treating the same with ammonium sulfite. French patent specification No. 2,028,771 describes such fertilizer mixture which comprises a small amount of huminic acid derived from peat as organic component, however the composition does not contain any trace element. Hungarian patent specification No. 157,566 describes a process wherein the organic component of the granular fertilizer is urea. In Hungarian patent specification No. 167,322 the preparation of a fertilizer composition comprising mainly ammonium nitrate is described in the course of which potassium and boron ions are incorporated into the crystals of ammonium nitrate. According to Austrian patent specification No. 8286/72 a mixture of inorganic and organic substances, suitable for fertilizing soil, is prepared by suspending manure in water, acidified with mineral acids,together with mineral salts. After standing the suspension is neutralized by calcium oxide and the substance thus obtained is concentrated and dried optionally after the addition of solid fertilizer.
The common drawback of the above-mentioned complex fertilizer compositions is that their organic substance content is low. Therefore if they are used for a long time, they can be applied only together with supplementary organic fertilizers.
The characteristic feature of the second group of the complex fertilizers is that the main portion of the composition is an organic substance which is supplemented with smaller or higher amount of inorganic nutrients.
According to Hungarian patent specification
No. 174,645 diluted manure is supplemented with NPP fertilizers according to the demands of the plant to be grown. An other process is also known when the organic waste materials used for the production of biogas are supplemented with fertilizers containing nitrogen, phosphor and potassium in the course and/or after the fermentation.
The common disadvantage of these processes resides in that the high organic content of the compositions thus obtained is not accompanied with high nutrient element content. The preparation of the compositions requires long time, their treatment is difficult due to their high humidity content and unfavourable physical properties.
Recognizing these drawbacks Hungarian patent specification No. 184,857 describes a process for the preparation of granular or powder organic fertilizers of improved bioactivity. According to the said specification a complex fertilizer composed of mainly fecal supplemented with alkaline metal humates and huminchelates of plant trace nutrients and optionally with trace nutrients. However, the access to the basic material is restricted and the microorganisms facilitating the formation of humus are killed during the disinfection. The favourable physical structure of the composition can be assured if the substance thus obtained is subjected to further treatments (granulation, powdering), which significantly increase the costs of the process.
An improved variant of the above process is taught by Hungarian patent specification No. 185,754. According to this process mainly organic wastes and humin carriers of low carbonization degree are milled together with alkaline hydroxides, homogenized with solid contact materials, the mixture thus obtained is disinfected, supplemented with plant nutrients and inoculated with humifying microorganisms after neutralization. The process
suffers from the drawback that it requires numerous additives, therefore its working is complicated and expensive.
Other processes are also known when organic materials of high humine content and/or organic fertilizers (peat, earthworm-produced humus) are mixed to chemical fertilizers in a ratio according to the demands of the plant variety to be grown, then this mixture is granulated. However, only physical connection is formed between the components of the mixture thus obtained, therefore the availability of the different components of the mixture is not effected by an other component. The granules are not stable, the development of the necessary and optimal grain size needs futher steps which may significantly increase the costs of the process.
It can be established that the demands and requirements set against complex fertilizers could not be met by the known procedures.
Our aim was to eliminate the drawbacks of the known processes and to work out a process for the preparation of a granular composition in a very simple manner, which does not require the expensive, time- consuming granulation step after the mixing of the pre- treated components. An other aim was to work out a granular nutrient composition wherein the quantity and quality of the nutrient elements can be controlled according to the demands of the plant to be fertilized and which has a granular structure resistant to physical effects and water. A futher aim was to assure the presence of humifying microorganisms in the nutrient compositions obtained by the process without disinfecting the basic materials then inoculating the mixture with humifying microorganisms.
The present invention is based on the recognition that the humates which can be dissolved from humus
produced by earthworms are able to stick the organic and/or inorganic nutrient substances. By using the said sticking ability, plant nutrients of different quantity and quality can be bound to the humin substances being ^ inside and on the surface of the earthworm-produced humus granules.
The present invention is based on the further recognition that the complexes thus obtained form a layer being resistant even to physical effects after - solidification, while the nutrient composition thus obtained retains the granular structure of earthworm- produced humus and also comprises the microorganisms characteristic for the earthworm-produced humus. SUMMARY OF THE INVENTION In the course of the present invention a sticking material is prepared from earthworm-produced humus by alkaline pre-treat ent and setting of the humidity content thereof. By the alkaline pre-treatment the humates are recovered from the earthworm-produced humus. The sticking C material thus prepared is mixed • with plant nutrient substances and earthworm-produced humus of desired quantity and the granules thus formed are dried until the desired humidity content thereof, preferably that humidity content which assures the stable physical structure of the granules, is achieved.
DETAILED DESCRIPTION OF THE INVENTION
According to the present invention plant nutrient compositions based on earthworm-produced humus are prepared by stirring the earthworm-produced humus with an 0 alkaline substance in an amount of 5 to 30 % by weight calculated for the earthworm-produced humus, then setting the humidity content of the mixture thus obtained to 70 to 80 % by weight, leaving the mixture to stand for 1 to 12 hours, then mixing the same with trace- or macronutrients of an amount of 5 to 1000 % by weight and with
earthworm-produced humus of 20 to 1000 % by weight calculated for the weight of the mixture and drying the granules thus obtained.
According to a preferred embodiment of the process of the invention potassium- or ammonium hydroxide is used as alkali.
According to a further preferred embodiment of the process of the invention chemical fertilizer comprising nitrogen and/or potassium and/or phosphor is used as macronutrient substance.
According to a further preferred embodiment of the process of the invention urea and/or potassium chloride and/or ammonium hydroxide and/or superphosphate, is used as chemical fertilizer. According to a further preferred embodiment of the process of the invention zinc, manganese, copper and/or molybdenum salts are used as trace nutrients.
According to a further preferred embodiment of the process of the invention the stirring is followed until a granule size of 0.1 to 10.0 mm is achieved.
According to a further preferred embodiment of the process of the invention the granules are dried until their humidity content reaches the 60 to 90 % by weight.
The main advantages of the process of the invention are as follows:
- Earthworm-produced humus is used as the basic material of the process, therefore the nutrient compositions thus obtained are favourable from enviroment protection point of view. - The organic substance content of the nutrient compositions prepared according to the process of the invention is similar to the humus fractions of soil.
- The macro- and trace element content of the nutrient compositions produced by the process of the invention can be adapted to the demands of the plant to be
fertilized and to the aim of fertilization.
- The nutrient compositions produced by the process of the invention comprise certain nutrient elements in the form of hu in chelates, therefore they stimulate the plant metabolism.
- The nutrient composition produced by the process of the invention is of granular structure without adding any additive and/or additional treatment.
- A stable granular structure is formed in the
10 course of the process of the invention, therefore the granules are well resistant to physical effects. Thus the nutrient compositions thus obtained can be applied to soil in any conventional fertilizing manner without losses.
- The granules produced in the course of the al C
- process of the invention slowly dissolve in water, therefore they do not disintegrate when they contact with the wet soil. Thus the dissolution of the different nutrient elements takes place in harmony with the uptake of the nutrients by the plant, therefore the fertilizing C losses and the enviroment pollution can significantly be decreased.
- The nutrient compositions produced according to the process of the invention comprise the microorganisms characteristic for the earthworm-produced humus, thus
25 further treatment is not needed.
- The process of the invention can be worked with the aid of the simple machines presently used at the place of utilization in a cheap manner.
The invention is illustrated by the further non- 30 limiting examples. Example 1
8 kg of granulated potassium hydroxide are stirred together with 50 kg of earthworm-produced humus, then the mixture is wetted to a humidity content of 75 % and left to stand for 2 hours.
Then 6 kg (45 %) of urea, 47 kg (18 %) of powdered superphosphate and 32 kg (60 %) of potassium chloride are dissolved in 10 1 of water, then the solution is stirred with the alkali treated earthworm-produced humus. 5 Then 250 kg of earthworm-produced humus are added to the mixture thus obtained and the mixture is stirred until a particle size of 1 to 3 mm is achieved. The substance obtained after stirring is dried at a temperature of below 60°C until a 80 % of dry substance "•k content is achieved.
The composition of the substance is as follows: Dry substance content 80.0 % by weight
Organic substance 30.0 % by weightx
Nitrogen content 1.5 % by weightx
15 P (P205) 2.7 % by weight -
K (K20) ' 7.1 % by weight
Total number of bacteria (l/g) 5.5 x 106 ( % by weightx = % by weight related to the'dry substance content) 20 Example 2
12 1 of 22 % by weight of ammonium hydroxide are added to 50 kg of earthworm-produced humus, then the mixture is wetted to a humidity content of 70 % and left to stand for 6 hours. 25 Then 68 kg (46 %) of urea are dissolved in 181 of water, then the solution is stirred with the alkali treated earthworm-produced humus.
Then 350 kg of earthworm-produced humus are added to the mixture thus obtained and the mixture is stirred C until a particle size of 3 to 5 mm is achieved. The substance obtained after stirring is dried at a temperature of below 60°C until a 80 % of dry substance content is achieved.
The composition of the substance is as follows: Dry substance content 80.0 % by weight
Organic substance 34.0 % by weightx
Nitrogen content 8.0 % by weightx P (P205) 0.6 % by weightx
K (K20) 0.9 % by weightx
Total number of bacteria (l/g) 6.1 x 10^ Example 3
8 kg of granulated potassium hydroxide are mixed to 50 kg of earthworm-produced humus, then the mixture is wetted to a humidity content of 75 % and left to stand for 4 hours.
Then 50 kg (46 %) of urea, 70 kg (18 %) of powdered superphosphate, 30 kg (60 %) of potassium chloride, 3 kg (22.8 %) of ZnS0 .7H20, 2 kg (27.0 %) of MnS0 .7H20, 1.5 kg (25.4 %) of CUSO .. H2O and 0.6 kg (39.6 .) Na2Mo0/,..H 0 are added to 25 1 of water, then the solution is stirred with the alkali treated earthworm- produced humus. Then 250 kg of earthworm-produced humus are added to the mixture thus obtained and the mixture is stirred until a particle size of 2 to 4 mm is achieved. The substance obtained after stirring is dried at a temperature of below 60°C until a 80 % of dry substance content is achieved.
The composition of the substance is as follows: Dry substance content 80.0 % by weight
Organic substance 26.0 % by weightx
Nitrogen content 5.7 % by weightx P (P205) 3.2 % by weightx
K (K20) 5.8 % by weightx
Zn 0.15 % by weightx
Mn 0.12 % by weight
Cu 0.08 % by weightx
Mo 0.05 % by weightx Total number of bacteria 4.6 x 10
Example 4
25 kg of granulated potassium hydroxide are mixed to 50 kg of earthworm-produced humus, then the mixture is wetted to a humidity content of 75 % and left to stand for 5 6 hours.
Then 35 kg (75 ) of phosphoric acid then 54 kg of urea are mixed to the alkali treated earthworm-produced humus.
Then 350 kg of earthworm-produced humus are added
10 to the mixture thus obtained and the mixture is stirred until a particle size of 3 to 5 mm is achieved. The substance obtained after stirring is dried at a temperature of below 60°C until a 80 % of dry substance content is achieved. ajc ' The composition of the substance is as follows:
Dry substance content 80.0 % by weight
Organic substance 34.0 % by weightx
Nitrogen content 6.0 % by weightx
P (P205) 4.1 % by weightx 0 K (K20) 5.9 % by weight
Total number of bacteria (l/g) 6.9 x 10°
Claims
1. Process for the preparation of plant nutrient compositions based on earthworm-produced humus which comprises stirring the earthworm-produced humus with an alkaline substance in an amount of 5 to 30 % by weight calculated for the earthworm-produced humus, then setting the humidity content of the mixture thus obtained to 70 to 80 % by weight, leaving the mixture to stand for 1 to 12 hours, then mixing the same with trace- or macronutrients 0 of an amount of 5 to 1000 % by weight and with earthworm-produced humus of 20 * to 1000 % by weight calculated for the weight of the mixture and drying the granules thus obtained.
2. The process as claimed in claim 1 which ' -- comprises using potassium- or ammonium hydroxide as alkaline substance.
3. The process as claimed in claim 1 or 2 which comprises using chemical phosphoric acid or a chemical fertilizer as macronutrient. 0
4. The process as claimed in claim 3 which comprises using a chemical fertilizer comprising phosphor, nitrogen and/or potassium, such as superphosphate, potas-Lum chloride or urea as chemical fertilizer.
5. The process as claimed in any of the preceeding 5 claims which comprises using zinc-, manganese-, copper and/or molybdenum salts as trace nutrients.
6. The process as claimed in any of the preceeding claims which comprises following the mixing until a granule size of 0.1 to 10.0 mm is achieved. ~
7. The process as claimed in any of the preceeding claims which comprises drying the granules until their humidity content reaches the 60 to 90 % by weight.
8. The composition as prepared according to any of the preceeding claims.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/HU1991/000029 WO1993000312A1 (en) | 1991-06-28 | 1991-06-28 | Process for the preparation of granular plant nutrient compositions based on earthworm-produced humus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/HU1991/000029 WO1993000312A1 (en) | 1991-06-28 | 1991-06-28 | Process for the preparation of granular plant nutrient compositions based on earthworm-produced humus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1993000312A1 true WO1993000312A1 (en) | 1993-01-07 |
Family
ID=10980926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/HU1991/000029 WO1993000312A1 (en) | 1991-06-28 | 1991-06-28 | Process for the preparation of granular plant nutrient compositions based on earthworm-produced humus |
Country Status (1)
| Country | Link |
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| WO (1) | WO1993000312A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998011034A1 (en) * | 1996-09-11 | 1998-03-19 | Farhad Karim | Compositions containing earthworm excrements and/or extracts thereof and their use for plant cultures |
| CN104892960A (en) * | 2015-07-02 | 2015-09-09 | 成都市一心化工有限责任公司 | Method for producing humic acid manganese potassium salt |
| CN104945196A (en) * | 2015-07-02 | 2015-09-30 | 成都市一心化工有限责任公司 | Method for producing iron potassium humate |
| CN105272479A (en) * | 2015-11-19 | 2016-01-27 | 扬州大学 | Earthworm amino acid liquid fertilizer special for watermelons and producing method |
| WO2016181176A1 (en) * | 2015-05-11 | 2016-11-17 | Plantaco Logisztikai És Szolgáltató Kft. | Plant conditioner containing alginite and vericompost derivatives |
| CN110800760A (en) * | 2018-12-26 | 2020-02-18 | 青岛农业大学 | Earthworm hydrolysate and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5169058A (en) * | 1974-12-06 | 1976-06-15 | Nippon Nogyo Shizai Kk | Jinkotekishiryo nyoru mimizufuno ryoshita hiryo |
| JPS5440111A (en) * | 1977-08-30 | 1979-03-28 | Miyoshi Sangiyou Kk | Nursery rice plant culture bed soil contained organic matter |
-
1991
- 1991-06-28 WO PCT/HU1991/000029 patent/WO1993000312A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5169058A (en) * | 1974-12-06 | 1976-06-15 | Nippon Nogyo Shizai Kk | Jinkotekishiryo nyoru mimizufuno ryoshita hiryo |
| JPS5440111A (en) * | 1977-08-30 | 1979-03-28 | Miyoshi Sangiyou Kk | Nursery rice plant culture bed soil contained organic matter |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998011034A1 (en) * | 1996-09-11 | 1998-03-19 | Farhad Karim | Compositions containing earthworm excrements and/or extracts thereof and their use for plant cultures |
| WO2016181176A1 (en) * | 2015-05-11 | 2016-11-17 | Plantaco Logisztikai És Szolgáltató Kft. | Plant conditioner containing alginite and vericompost derivatives |
| CN104892960A (en) * | 2015-07-02 | 2015-09-09 | 成都市一心化工有限责任公司 | Method for producing humic acid manganese potassium salt |
| CN104945196A (en) * | 2015-07-02 | 2015-09-30 | 成都市一心化工有限责任公司 | Method for producing iron potassium humate |
| CN105272479A (en) * | 2015-11-19 | 2016-01-27 | 扬州大学 | Earthworm amino acid liquid fertilizer special for watermelons and producing method |
| CN110800760A (en) * | 2018-12-26 | 2020-02-18 | 青岛农业大学 | Earthworm hydrolysate and preparation method and application thereof |
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