CN102992855A - Special slow-release fertilizer for Chinese cabbage by taking biomass granular charcoal as matrix and preparation method thereof - Google Patents
Special slow-release fertilizer for Chinese cabbage by taking biomass granular charcoal as matrix and preparation method thereof Download PDFInfo
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- CN102992855A CN102992855A CN2012102942198A CN201210294219A CN102992855A CN 102992855 A CN102992855 A CN 102992855A CN 2012102942198 A CN2012102942198 A CN 2012102942198A CN 201210294219 A CN201210294219 A CN 201210294219A CN 102992855 A CN102992855 A CN 102992855A
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Abstract
The invention discloses a special slow-release fertilizer for Chinese cabbage by taking biomass granular charcoal as matrix and a preparation method thereof. The method taking granular charcoal prepared from agricultural waste biomasses such as corn cob, peanut shell, rice husk and mushroom matrix as host materials comprises the steps of compounding the host materials with necessary nitrogen, phosphorous and potassium for growing development of the Chinese cabbage and other nutrient elements by utilizing the microporosity and strong adsorption capacity, so as to prepare the special slow-release fertilizer for granular biomass charcoal Chinese cabbage. The biomass granular charcoal used in the slow-release fertilizer is black biomass granular charcoal particles prepared from the agricultural waste biomasses which are incompletely burnt under a low-oxygen condition, has a plurality of characteristics similar to soil humus, strong capacities of adsorbing and maintaining nutrients and moisture, and good slow release performance on the nitrogen, phosphorus and potassium, and also can stimulate crop growth. Therefore, the prepared slow-release fertilizer can effectively supply the requirements of the Chinese cabbage on nutrients during the entire growing period after being applied once, and has the characteristics of increasing the soil fertility and improving the soil structure, and high efficiency and environmental protection; and large-scale promotion and application in production of the Chinese cabbage are facilitated.
Description
Technical field
The invention belongs to the agricultural fertilizer production technical field, particularly a kind of Chinese cabbage take the biological particles charcoal as matrix is slow-release fertilizer dedicated and preparation method thereof.
Background technology
In Chinese cabbage produced, the rational application of fertilizer was to guarantee the important measures of yield and quality.Chinese cabbage is take leaf as product, and is the most responsive to the requirement of nitrogen.The in liberal supply then chlorophyll of nitrogen increases, and the carbohydrate of manufacturing increases thereupon, has also promoted the growth of leaf-head and has improved output.Phosphorus can promote the leaf primordium differentiation, and it is fast that siphonal lobe is occured, and the differentiation of ball leaf increases, and promotes it to transport to leaf-head.Enough supply potash fertilizer enriches the Chinese cabbage leaf-head, and output increases, and increases nutrient content in the Chinese cabbage and improve quality.But in actual production, peasant household is under high production and high yield stimulation, often there is the blindly excessive chemical fertilizer (especially nitrogenous fertilizer) of using, thereby cause Chinese cabbage nutritional trouble, quality to descend, also cause easily the loss of nitrogen, potash fertilizer and phosphate fertilizer by soil fixing, make the fertilizer waste and the validity of Chinese cabbage is reduced.
The method one that addresses these problems in fertilising at present is the consumption that increases fertilizer, the 2nd, and chemical fertilizer application is taked on a small quantity repeatedly.Along with the continuous expansion of Chinese cabbage cultivated area, fertilizer can not be satisfied the demand, and peasant's labour intensity and recruitment cost repeatedly used and increased to chemical fertilizer.Adopt the long-acting or slow special release fertilizer single fertilization of Chinese cabbage more and more to be subject to peasant's welcome.Present slow release fertilizer both domestic and external generally all is to reach the purpose that prolongs fertilizer efficiency by physical methods such as coating, parcel, packing, coatings, such as the coated fertilizer of bag Thio Urea, polymer coated fertilizer, fertilizer bag fertilizer, coated fertilizer and with Quick-dissolving fertilizer and the mixing formed Wrapped fertilizer of rubber latex etc.The slow controlled-release technology that also has employing physics and biochemical method to combine is produced slow release fertilizer.The general cost of these fertilizer is higher, and seldom possesses hole and adsorptive power, more without increasing soil fertility, improving the characteristics such as Soil structure.
On the other hand, at present China has become one of country of agriculture waste biomass generation maximum in the world, it is reported, the gross annual output of all kinds of agricultural crop straws of China amount of giving birth to reaches more than 700,000,000 tons, wherein straw is 2.3 hundred million tons, 2.7 hundred million tons of maize straws, 100,000,000 tons of peanut, beans and autumn coarse cereals stalks.The easiest way of Treating straw is directly to burn down on the farm at present.Burning season, once repeatedly occuring to be forced to close event because smog all over the sky causes flight to land with motorway, both wasting a large amount of precious resources, bringing severe contamination to environment again.Therefore agriculture waste biomass outlet has become a great problem that solution is badly in need of in government department.Particularly along with the raising of level of agricultural production development and life of farmers level, fewer and feweri to utilizing of original agriculture waste biomass as fuel and fertilizer, agricultural wastes are more and more.
Summary of the invention
The purpose of this invention is to provide a kind of take the standby particle charcoal of the agriculture waste biomass-makings such as corn cob, Pericarppium arachidis hypogaeae, rice husk, stalk, edible fungi substrate as substrate material, utilize its many micropores, strong adsorptive power, compound with grow necessary nitrogen, phosphorus, potassium and other nutritive elements of Chinese cabbage, prepare slow-release fertilizer dedicated method and the application of particulate biomass charcoal base Chinese cabbage, can satisfy better the needs that Chinese cabbage produces.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of Chinese cabbage take the biological particles charcoal as matrix is slow-release fertilizer dedicated, contains
1. biological particles charcoal; With
2. binding agent; With
3. one or more in nitrogenous fertilizer, phosphate fertilizer, potash fertilizer and the trace element fertilizer.
Content by weight percentage:
The content of biological particles charcoal is 10-50%;
The slow-release fertilizer dedicated total nutrient content of described Chinese cabbage take the biological particles charcoal as matrix is 30-35%; Described total nutrient refer to nitrogen (N) or/and available phosphorus (P2O5) or/and effective potassium (K2O), wherein nitrogenous (N) amount is 11-13%; Contain available phosphorus (P2O5) amount and be 5-6%; Contain effective potassium (K2O) amount and be 14-16%.
Described biological particles charcoal is one or more in corn cob granule charcoal, rice husk particle charcoal, peanut shell granular charcoal, stalk particle charcoal, the mushroom dish particle charcoal.
Described nitrogenous fertilizer is one or more in urea, ammonium nitrate, ammonium sulfate, ammonium chloride and any other formulation fertilizer containing nitrogen.
Described phosphate fertilizer is monoammonium phosphate, diammonium phosphate, calcium superphosphate, fused(calcium magnesium)phosphate, nitrophosphate fertilizer and any one or more that contain in the phosphatic manure.
Described potash fertilizer is that vitriolate of tartar, Repone K, potassium primary phosphate and any other contain in the potassic fertilizer one or more.
Described trace element fertilizer is one or more in the trace element fertilizers such as boron, zinc, manganese, iron, copper or molybdenum.
Biological particles charcoal among the present invention is preferably and adopts anoxic destructive distillation decomposition technique production agriculture waste biological particles charcoal under the inferior hot conditions.Described agriculture waste biomass can be corn cob, rice husk, Pericarppium arachidis hypogaeae, stalk, edible fungi substrate etc., but are not limited to this.
Described binding agent is that wilkinite is or/and clay.
In order to play better slow release effect, according to the Chinese cabbage nutrient uptake feature, described Chinese cabbage take the biological particles charcoal as matrix is slow-release fertilizer dedicated, and to contain simultaneously following various composition the most effective:
1) biological particles charcoal; With
2) binding agent; With
3) urea, diammonium phosphate, fused(calcium magnesium)phosphate, vitriolate of tartar, zinc sulfate and borax.
Each component content is slow-release fertilizer dedicated to produce 1 ton of charcoal base Chinese cabbage:
200-300 kg/tonne of biological particles carbon particle
Urea 200-240 kg/tonne
Diammonium phosphate 90-110 kg/tonne
Fused(calcium magnesium)phosphate 60-70 kg/tonne
Vitriolate of tartar 280-320 kg/tonne
Zinc sulfate 8-10 kg/tonne
Borax 18-22 kg/tonne
Described biological particles carbon particle granularity 80-100 orders, described urea contains N:46%, described diammonium phosphate contains N 18%, P2O5 46%, described fused(calcium magnesium)phosphate contains P2O5:15%, described vitriolate of tartar contains K2O 50%, described zinc sulfate contains zinc 20%～23%, described borax boracic 11%.
Also can further contain other little fertilizer, described other little fertilizer is selected from one or more in manganous sulfate, ammonium molybdate, ferrous sulfate, the copper sulfate.Other little fertile total content is preferably 0.5-1%.The purity of various little fertilizer is preferably more than 90%.
The present invention also further provides the Chinese cabbage take the biological particles charcoal as matrix slow-release fertilizer dedicated preparation technology, comprises with various component mixing granulations particle diameter 3. 35-5.0mm.
The present invention also further provides the Chinese cabbage take the biological particles charcoal as matrix slow-release fertilizer dedicated purposes, used as disposable base fertilizer, preferred amount of application is 80-120 kg/acre, imposes under the field planting ridge 5-l0cm depths between 12-15cm place or two caves before the seedling replanting.
High efficiency charcoal base Chinese cabbage provided by the invention is slow-release fertilizer dedicated, is the durable composite fertilizer take organic biological particles charcoal as substrate material.The biological particles charcoal that the present invention uses is the black biological particles charcoal particle (carbon black) that the agriculture waste biomass form behind the incomplete combustion under hypoxia condition, multifrequency nature with similar agron (acid), its absorption and keep nutrient and moisture very capable, can also stimulate plant growth, sustained release performance to nitrogen phosphorus potassium is good, the slow-release fertilizer applied once for preparing thus, can effectively supply Chinese cabbage whole vegetative period the demand to nutrient, utilization rate of fertilizer is high, and has an increase soil fertility, improve the characteristics such as Soil structure and high-efficiency environment friendly, be conducive to large-scale promotion application in Chinese cabbage produces.
Compare with existing compound manure, the present invention has the following advantages:
1, had good sustained release effect, utilization rate of fertilizer is high.The charcoal base Chinese cabbage that the present invention produces is slow-release fertilizer dedicated to have extremely strong adsorptivity, water-retentivity and heating property of extinction, had good sustained release effect, and the fertilizer nutrient utilization ratio is high.After being manured into soil, not only can hold fertilizer slow-release, reduce the fertilizer leaching loss, and heat the water conservation district owing to around each carbon granule, can form a little extinction, both be conducive to increase ground temperature, again to a certain extent slowly-releasing drought and water shortage impact that Chinese cabbage is grown and produces.
2, production technique is simple, and raw material is easy to get.The used substrate material of the present invention is the biological particles charcoals such as corn cob, Pericarppium arachidis hypogaeae, rice husk, stalk, edible fungi substrate, and raw material comes from the abandoned biomass of agriculture production, and is with low cost, inexhaustible; Equipment used is pulverizer commonly used, simple and easy charring furnace, agitator, granulating disc etc., and production unit is simple, and technical maturity is easy to industrialization.As long as improve slightly, existing fertilizer plant all can directly put into production.
3, environmentally friendly, safety and environmental protection.The used substrate material of the present invention itself is exactly utilization of waste material, and the needing no outside energy does not produce " three wastes " and pollutes the energy-conservation and environmental protection of production process; The plant-derived organism of biological particles charcoal, its main component are charcoal element more than 90%, can natural decomposition in soil, fully noresidue, thereby in use to environment without any pollution, have concurrently simultaneously the improvement Soil structure long-acting characteristic, be conducive to the agricultural Sustainable development.
4, potentiality to be exploited is huge.Chinese cabbage is the fertile crop of happiness, the arable land nitrogen stress of China about 90%, and about 30% arable land lacks phosphorus, about 25% arable land potassium deficiency, and Nitrate Accumulation and ubiquitous fertilizer loss are serious, the low problem of utilization ratio, become the important factor of this industry development of puzzlement.The present invention reaches loose, slowly-releasing, economy, environmental protection, increase soil fertility, improves the fertilizer efficiency texts as matrix by applying biological matter particle charcoal element, is a kind of revolutionary change of fertilizer industry.
Embodiment
Below by embodiment the present invention is further described specifically.
A kind of Chinese cabbage take the biological particles charcoal as matrix is slow-release fertilizer dedicated, comprises:
1. biological particles charcoal; With
2. binding agent; With
3. one or more in nitrogenous fertilizer, phosphate fertilizer, potash fertilizer and the trace element fertilizer.
By weight or weight percent content:
The content of biological particles charcoal is 10-50%.
The slow-release fertilizer dedicated total nutrient content of described Chinese cabbage take the biological particles charcoal as matrix is 30-35%, meets organic-inorganic composite fertilizer national standard.Described total nutrient refers to nitrogen (N) and available phosphorus (P2O5).Wherein nitrogenous (N) amount is 11-13%; Contain available phosphorus (P2O5) amount and be 5-6%; Contain effective potassium (K2O) amount and be 14-16%.
Described biological particles charcoal is one or more mixture of corn cob granule charcoal, rice husk particle charcoal, peanut shell granular charcoal, stalk particle charcoal or mushroom dish particle charcoal.
Described nitrogenous fertilizer is one or more in urea, ammonium nitrate, ammonium sulfate, ammonium chloride and any other formulation fertilizer containing nitrogen.
Described phosphate fertilizer is monoammonium phosphate, diammonium phosphate, calcium superphosphate, fused(calcium magnesium)phosphate, nitrophosphate fertilizer and any one or more that contain in the phosphatic manure.
Described potash fertilizer is that vitriolate of tartar, Repone K, potassium primary phosphate and any other contain in the potassic fertilizer one or more.
Described trace element fertilizer is one or more in the trace element fertilizers such as boron, zinc, manganese, iron, copper or molybdenum.
Biological particles charcoal among the present invention is preferably and adopts anoxic destructive distillation decomposition technique production agriculture waste biological particles charcoal under the inferior hot conditions.Described agriculture waste biomass can be corn cob, rice husk, Pericarppium arachidis hypogaeae, stalk, edible fungi substrate etc., but are not limited to this.
Described binding agent is that wilkinite is or/and clay.
In order to play better slow release effect, according to the Chinese cabbage nutrient uptake feature, the Chinese cabbage take the biological particles charcoal as matrix is slow-release fertilizer dedicated, and to contain simultaneously following various composition the most effective:
1) biological particles charcoal; With
2) binding agent; With
3) urea, diammonium phosphate, fused(calcium magnesium)phosphate, vitriolate of tartar, zinc sulfate and borax.
Each component content is slow-release fertilizer dedicated to produce 1 ton of charcoal base Chinese cabbage:
200-300 kg/tonne of biological particles carbon particle
Urea 200-240 kg/tonne
Diammonium phosphate 90-110 kg/tonne
Fused(calcium magnesium)phosphate 60-70 kg/tonne
Vitriolate of tartar 280-320 kg/tonne
Zinc sulfate 8-10 kg/tonne
Borax 18-22 kg/tonne
Described biological particles carbon particle granularity 80-100 orders, described urea contains N:46%, described diammonium phosphate contains N 18%, P2O5 46%, described fused(calcium magnesium)phosphate contains P2O5:15%, described vitriolate of tartar contains K2O 50%, described zinc sulfate contains zinc 20%～23%, described borax boracic 11%.
For the area or the field that lack trace element, can in this prescription, on purpose add other little fertilizer, described other little fertilizer is selected from one or more of manganous sulfate, ammonium molybdate, ferrous sulfate, copper sulfate.Other little fertilizer (manganous sulfate, ammonium molybdate, ferrous sulfate, copper sulfate etc.) total content is preferably 0. 5-1% in the special-purpose disposable base fertilizer of Chinese cabbage.The purity of various little fertilizer is preferably more than 90%.
Described urea, diammonium phosphate, fused(calcium magnesium)phosphate, vitriolate of tartar, zinc sulfate, borax are all available on market, and be all on sale at Agricultural Materials shop.
Described other little fertilizer such as manganous sulfate, ammonium molybdate, ferrous sulfate, copper sulfate etc. are all available on market, and are all on sale at Agricultural Materials shop.
The preferred granular urea of described urea (also being referred to as the urea powder).
The slow-release fertilizer dedicated preparation technology of described Chinese cabbage take the biological particles charcoal as matrix comprises various component mixing granulations, particle diameter 3. 35-5.0mm.
Chinese cabbage take the biological particles charcoal as matrix provided by the invention is slow-release fertilizer dedicated, uses simply, can be used as the special-purpose disposable base fertilizer of Chinese cabbage.The preferred amount of application of disposable base fertilizer is 80-120 kg/acre, imposes under the field planting ridge 5-l0cm depths between 12-15cm place or two caves before the seedling replanting, exempts to topdress.
Embodiment 1: the preparation technology that the Chinese cabbage take the biological particles charcoal as matrix is slow-release fertilizer dedicated
Mix with weight ratio or weight percent according to following step:
(1) nitrogenous (N) amount of getting is 46% granular urea; 80 purpose biological particles carbon particles; ratio in 68.8%, 31.2% is mixed; utilization is carried out dressing with the disc-type granulating machine (conventional machinery in the fertilizer preparation process) of heating function, makes the simple substance slow-release nitrogen fertilizer of nitrogenous (N) amount 31.65%.
(2) getting nitrogenous (N) amount is 18%; contain available phosphorus (P2O5) amount and be 46% diammonium phosphate powder, 80 purpose biological particles carbon particle and binding agents; ratio in 72.5%, 21. 4% and 6.1% is mixed; carry out the pressure granulation with KP-300 type organic fertilizer granulator; make nitrogenous (N) amount 13.05%, contain available phosphorus (P2O5) amount and be 33.35% compound nitrogen phosphate fertilizer.
(3) get that to contain available phosphorus (P2O5) amount be 15% fused(calcium magnesium)phosphate, 80 purpose biological particles carbon particle and binding agents; ratio in 71.4%, 22. 3% and 6.3% is mixed; carry out the pressure granulation with KP-300 type organic fertilizer granulator, make that to contain available phosphorus (P2O5) amount be 10.71% slow-release phosphate fertilizer.
(4) get that to contain effective potassium (K2O) amount be that 50% vitriolate of tartar, 80 purpose biological particles carbon particles, binding agent, zinc content are 23% zinc sulfate and boron fertilizer (Agricultural Materials shop is all available); ratio in 66.5%, 21.1%, 6.0%, 2.0%, 4.4% is mixed; carry out the pressure granulation with KP-300 type organic fertilizer granulator, make potassium, zinc, the boron composite fertilizer of potassium content 33. 25%.
Further compound: the finished product of (1), (2), (3) and (4) in 32.0%, 13.8%, 9.1% and 45.1% ratio compound, and are stirred with ZLC-300 type stirrer (conventional machinery in the fertilizer preparation process).
Also can further add 0.5% manganous sulfate and 0.5% copper sulfate, or add 1% ferrous sulfate, stir with ZLC-300 type stirrer (conventional machinery in the fertilizer preparation process).
Described binding agent is the Acidic Bentonite of PH 5.5-6.5.
Claims (7)
1. the Chinese cabbage take biological particles carbon as matrix is slow-release fertilizer dedicated, it is characterized in that containing:
1). the biological particles charcoal; With
2). binding agent; With
3). one or more in nitrogenous fertilizer, phosphate fertilizer, potash fertilizer and the trace element fertilizer;
Content by weight percentage:
The content of biological particles charcoal is 10-50%;
The slow-release fertilizer dedicated total nutrient content of described Chinese cabbage take the biological particles charcoal as matrix is 30-35%; Described total nutrient refer to nitrogen (N) or/and available phosphorus (P2O5) or/and effective potassium (K2O), wherein nitrogenous (N) amount is 11-13%; Contain available phosphorus (P2O5) amount and be 5-6%; Contain effective potassium (K2O) amount and be 14-16%;
Described biological particles charcoal is one or more in corn cob granule charcoal, rice husk particle charcoal, peanut shell granular charcoal, stalk particle charcoal, the mushroom dish particle charcoal;
Described nitrogenous fertilizer is one or more in urea, ammonium nitrate, ammonium sulfate, ammonium chloride and any other formulation fertilizer containing nitrogen;
Described phosphate fertilizer is monoammonium phosphate, diammonium phosphate, calcium superphosphate, fused(calcium magnesium)phosphate, nitrophosphate fertilizer and any one or more that contain in the phosphatic manure;
Described potash fertilizer is that vitriolate of tartar, Repone K, potassium primary phosphate and any other contain in the potassic fertilizer one or more;
Described trace element fertilizer is one or more in the trace element fertilizers such as boron, zinc, manganese, iron, copper or molybdenum;
Described binding agent is that wilkinite is or/and clay.
2. a kind of Chinese cabbage take biological particles carbon as matrix as claimed in claim 1 is slow-release fertilizer dedicated, it is characterized in that containing:
1) biological particles charcoal; With
2) binding agent; With
3) urea, diammonium phosphate, fused(calcium magnesium)phosphate, vitriolate of tartar, zinc sulfate and borax;
Each component content is slow-release fertilizer dedicated to produce 1 ton of charcoal base Chinese cabbage:
200-300 kg/tonne of biological particles carbon particle
Urea 200-240 kg/tonne
Diammonium phosphate 90-110 kg/tonne
Fused(calcium magnesium)phosphate 60-70 kg/tonne
Vitriolate of tartar 280-320 kg/tonne
Zinc sulfate 8-10 kg/tonne
Borax 18-22 kg/tonne.
3. a kind of Chinese cabbage take biological particles carbon as matrix as claimed in claim 1 or 2 is slow-release fertilizer dedicated, it is characterized in that described biological particles carbon particle granularity 80-100 orders, described urea contains N:46%, described diammonium phosphate contains N 18%, P2O5 46%, described fused(calcium magnesium)phosphate contains P2O5:15%, described vitriolate of tartar contains K2O 50%, described zinc sulfate contains zinc 20%～23%, described borax boracic 11%.
4. a kind of Chinese cabbage take biological particles carbon as matrix as claimed in claim 1 or 2 is slow-release fertilizer dedicated, it is characterized in that also further containing other little fertilizer, described other little fertilizer is selected from one or more in manganous sulfate, ammonium molybdate, ferrous sulfate, the copper sulfate.
5. a kind of Chinese cabbage take biological particles carbon as matrix as claimed in claim 4 is slow-release fertilizer dedicated, it is characterized in that other little fertile total weight percent content is 0. 5-1%.
6. such as the slow-release fertilizer dedicated preparation technology of the arbitrary described a kind of Chinese cabbage take biological particles carbon as matrix of claim 1-5, it is characterized in that described various component mixing granulations, particle diameter 3. 35-5.0mm.
7. such as the slow-release fertilizer dedicated purposes of the arbitrary described a kind of Chinese cabbage take biological particles carbon as matrix of claim 1-6, it is characterized in that used as disposable base fertilizer, preferred amount of application is 80-120 kg/acre, imposes under the field planting ridge 5-l0cm depths between 12-15cm place or two caves before the seedling replanting.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103613465A (en) * | 2013-11-27 | 2014-03-05 | 安徽省司尔特肥业股份有限公司 | Special biomass charcoal-based compound fertilizer for rapes and preparation method thereof |
| CN103641603A (en) * | 2013-11-27 | 2014-03-19 | 安徽省司尔特肥业股份有限公司 | Special biomass charcoal-based composite fertilizer for corn and preparation method thereof |
| CN104355906A (en) * | 2014-11-25 | 2015-02-18 | 重庆文理学院 | Method for preparing biochar based slow release fertilizers by utilizing macadamia nut shells/sorghum straws |
| US11124461B2 (en) | 2019-07-04 | 2021-09-21 | Incitec Pivot Limited | Fertilizer |
| CN114907163A (en) * | 2022-05-18 | 2022-08-16 | 南京林业大学 | Preparation method of Chinese cabbage slow-release fertilizer based on nano-scale biomass carbon material |
-
2012
- 2012-08-19 CN CN2012102942198A patent/CN102992855A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103613465A (en) * | 2013-11-27 | 2014-03-05 | 安徽省司尔特肥业股份有限公司 | Special biomass charcoal-based compound fertilizer for rapes and preparation method thereof |
| CN103641603A (en) * | 2013-11-27 | 2014-03-19 | 安徽省司尔特肥业股份有限公司 | Special biomass charcoal-based composite fertilizer for corn and preparation method thereof |
| CN103641603B (en) * | 2013-11-27 | 2015-04-15 | 安徽省司尔特肥业股份有限公司 | Special biomass charcoal-based composite fertilizer for corn and preparation method thereof |
| CN103613465B (en) * | 2013-11-27 | 2015-05-20 | 安徽省司尔特肥业股份有限公司 | Special biomass charcoal-based compound fertilizer for rapes and preparation method thereof |
| CN104355906A (en) * | 2014-11-25 | 2015-02-18 | 重庆文理学院 | Method for preparing biochar based slow release fertilizers by utilizing macadamia nut shells/sorghum straws |
| CN104355906B (en) * | 2014-11-25 | 2017-11-07 | 重庆文理学院 | The method that a kind of utilization Hawaii shell/broomcorn straw prepares biological carbon based slow-release fertilizer |
| US11124461B2 (en) | 2019-07-04 | 2021-09-21 | Incitec Pivot Limited | Fertilizer |
| US11691929B2 (en) | 2019-07-04 | 2023-07-04 | Incitec Fertilizers Pty Limited | Fertiliser |
| CN114907163A (en) * | 2022-05-18 | 2022-08-16 | 南京林业大学 | Preparation method of Chinese cabbage slow-release fertilizer based on nano-scale biomass carbon material |
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Application publication date: 20130327 |