CN104355902A - Method for preparing biochar based slow release fertilizers by utilizing sorghum straws - Google Patents
Method for preparing biochar based slow release fertilizers by utilizing sorghum straws Download PDFInfo
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- CN104355902A CN104355902A CN201410680095.6A CN201410680095A CN104355902A CN 104355902 A CN104355902 A CN 104355902A CN 201410680095 A CN201410680095 A CN 201410680095A CN 104355902 A CN104355902 A CN 104355902A
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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
- C05G5/40—Fertilisers incorporated into a matrix
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/05—Preparation or purification of carbon not covered by groups C01B32/15, C01B32/20, C01B32/25, C01B32/30
-
- 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
-
- 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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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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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
Abstract
The invention provides a method for preparing biochar based slow release fertilizers by utilizing sorghum straws. The method is characterized by taking the sorghum straws as raw materials to prepare modified biochar through anaerobic pyrolysis and then mixing the modified biochar with cow dung biogas residues, chemical fertilizers, urease inhibitors, nitrification inhibitors, and the like, thus preparing high-efficiency slow release fertilizers. The prepared slow release fertilizers are simple in production process, accessible in raw materials and low in production cost, can not only conduce to effectively increasing the use ratios of nitrogen, phosphorus and potassium and reducing nutrient loss but also conduce to improving the soil quality and the agricultural product quality, and are beneficial to benign development of agricultural ecosystems.
Description
Technical field
The present invention relates to biological carbon base manure material preparing technical field, particularly a kind of broomcorn straw prepares the method for charcoal based slow-release fertilizer.
Background technology
According to statistics, China's chemical fertilizer year usage quantity has reached 4,214 ten thousand tons, average 368 kg/hm
2, and in application, also there is the phenomenon of unreasonable structure in chemical fertilizer, and chemical fertilizer utilization ratio is extremely low.According to data, current China nitrogenous fertilizer average utilization only has 30% ~ 40%, phosphate fertilizer only has 10% ~ 20%, potash fertilizer only has 35% ~ 50%.The loss of chemical fertilizer, not only increases production cost, also causes the body eutrophications such as lake, reservoir, rivers, and soil property changes, and productivity declines, degradation problems under quality of agricultural product.Therefore, alleviate agrochemical pollution of area source, develop eco-agriculture, improving the ecological environment is the vital task that current agricultural is produced.For this reason, carried out a large amount of research work both at home and abroad, researched and developed various slow release fertilizer, greatly reduced chemical fertilizer pollution of area source.
Slow release fertilizer, also known as controlled availability fertilizer or release and release control fertilizer, refers to because chemical composition changes or surperficial bag painting half water-permeable or watertightness material, and makes wherein available nutrient slow release, keep the long-lasting of fertilizer efficiency.The most important properties of slow-release nitrogen fertilizer to control its release rate, decompose gradually after being manured into soil, be that Crop utilizes gradually, make nutrient in fertilizer can meet the different needs of each growth phase in crop whole vegetative period, after applied once, fertilizer efficiency can maintain more than several months to one year.Use Slow/Controlled Release Fertilizers, both can reduce production cost, agrochemical pollution of area source can be reduced again, utilize the sustainable development of agricultural.
Charcoal is biological material pyrolysis under anoxic or limited oxygen condition, removes the gentle rear remaining solid matter of oil in biomass.Biological carbon has excellent absorption property, directly can adsorb the pollution substance in waste water; Soil physico-chemical property, minimizing nutrient loss can also be improved after using soil, promote plant growth, adsorb fixing soil pollution substance, and the effect that carbon base in soil increases remittance reduction of discharging can be played.Therefore, charcoal has become one of study hotspot of environment in recent years and field of agricultural sciences.
Summary of the invention
Another object of the present invention is to preparation method and application process that above-mentioned biological carbon based slow-release fertilizer is provided.
In order to realize object of the present invention, the invention provides a kind of preparation method of biological carbon based slow-release fertilizer, mainly comprising charcoal, organic matter and chemical fertilizer, described charcoal is obtained by the modification of broomcorn straw carbonization at low temperature.
Biological carbon based slow-release fertilizer provided by the invention, its raw material comprises the composition of following mass ratio:
Modified biological carbon product: 25 ~ 40
Cow dung biogas slag: 25 ~ 35
Chemical fertilizer: 30 ~ 40
The mixing solutions of urease inhibitor and nitrification inhibitor: 2 ~ 5
Tackiness agent: 5-10
The mixing solutions of described charcoal and natural pond slag, chemical fertilizer, urease inhibitor and nitrification inhibitor, the mass ratio of tackiness agent are (25 ~ 40): (25 ~ 35): (30 ~ 40): (2 ~ 5): (5 ~ 10), are preferably 32:27:33:3:5.
Described biological carbon back slow-release fertilizer, its total nutrient (N+P
2o
5+ K
2o)≤20%, Sheng Wu Tan≤30%, You Ji Zhi≤30%.
In addition, first the present invention provides a kind of preparation method of above-mentioned biological carbon based slow-release fertilizer, comprises following concrete steps:
(1) broomcorn straw of collection is pulverized and sieved.
(2) broomcorn straw after above-mentioned pulverizing adds dilute hydrochloric acid stirring and evenly mixing, sealing and standing 24h, then adds cesium nitrate solution mixing sealing and standing 12h, natural air drying.
(3) biomass of above-mentioned process are placed in porcelain crucible compacting, cover lid carries out anaerobism pyrolysis; After pyrolytic reaction terminates, be cooled to after room temperature until crucible and take out.
(4) by the biological carbon of above-mentioned preparation and certain density H
2o
2mixing, shakes 24h in an oscillator and takes out, clean post-drying, namely obtain high absorption property biological carbon with distilled water.
(5) charcoal of above-mentioned preparation is inserted in encloses container, add a certain amount of strong aqua, the reaction of platinum nitrate solution post-heating, take out after question response 3-10 hour.Regulate reaction vessel pressure between the reaction period, make it maintain 5-15 standard atmospheric pressure.
(6) based on above-mentioned reacted modification biological charcoal; add a certain amount of natural pond slag, chemical fertilizer (nitrogenous fertilizer, phosphate fertilizer, potash fertilizer), urease inhibitor/nitrification inhibitor mixed solution, tackiness agent etc.; granulation in organic and inorganic fertilizer tablets press; material after granulation enters in dryer dries, and namely obtains biological carbon based slow-release fertilizer through cooling.
Anaerobic environment during for guaranteeing pyrolysis and pyrolysis effect, in described step 1, biomass material powder particle diameter is 20 ~ 100 orders.
In described step 2, dilute hydrochloric acid concentration is 0.5-2.5mol/L, and cesium nitrate strength of solution is 0.05-1.5mol/L.
Biomass pyrolytic temperature 400 ~ 700 DEG C in described step 3, pyrolysis time 60-300min, heat-up rate is 5-15 DEG C/min.
H in described step 4
2o
2concentration is 1 ~ 10%.
For improving the reaction effect between charcoal and ammoniacal liquor, increase the ammonia content combined in modification biological charcoal functional group, in described step 5, strong aqua concentration is 5%-28%, and platinum nitrate solution concentration is 0.02-1.0mol/L, and between the reaction period, reaction vessel pressure maintains 5-15 standard atmospheric pressure.
For improving ammoniacal liquor utilization ratio in step 5, described in regulating step 5 during reaction vessel pressure, reducing valve outlet can be placed in water, and by the aqueous solution that absorbs after ammonia for the preparation of fertilizer.
In described step 6 urease inhibitor be quinhydrones, under copper sulfate, o-diphenylphosphoryl diamines (PPD), catechol, thiophosphoryl triamide (NBPT), thiocarbamide or other normal temperature with water-soluble material with urease inhibiting effect of solid-state existence; Nitrification inhibitor is with water-soluble material with nitrification inhibitor effect of solid-state existence under the chloro-6-of 2-(trichlorotoluene zotrichloride) pyridine (also known as western pyrrole), amidinothiourea (ASU), Dyhard RU 100 (DCD), two (trichlorotoluene zotrichloride) s-triazine (MDCT), the 2-Sulphathiazole (ST) etc. of 2-methyl-4,6-or other normal temperature.Urease inhibitor in described step 6, nitrification inhibitor mixed solution are the mixed solution of urease inhibitor, nitrification inhibitor 1:1 in mass ratio.
In described step 6, natural pond slag is cow manure solids (before using, first natural air drying is crushed to 20-50 order) residual after biogas fermentation process, nitrogenous fertilizer is one or more in urea, volatile salt, ammonium nitrate, ammonium chloride, phosphate fertilizer is one or more in calcium superphosphate, double superhosphate, Si Liaodengji dicalcium phosphate feed grade, fused(calcium magnesium)phosphate, defluorinated phosphate, ground phosphate rock fertilizer, furnace slag, thomas phosphate, potash fertilizer is one or more in Repone K, potassium sulfate, potassium primary phosphate, sylvite, potassium magnesium salts, and tackiness agent is wilkinite.
the present invention has following beneficial effect:
The modification biological carbon that the present invention utilizes broomcorn straw to prepare and cow dung biogas slag are raw material for preparing slow-release fertilizer, and its production technique is simple, and raw material is easy to get, and production cost is low.
Biological carbon has extremely strong adsorptive power, can delay the release rate of nutrient; Biological carbon adsorptive power through modification is strengthened further, and adds a large amount of amino in modified-reaction process, further enhancing the slow release characteristic of fertilizer; Meanwhile, the cow dung biogas slag in fertilizer also has stronger adsorptive power, also can delay the release of nutrient.
Biological carbon based slow-release fertilizer not only effectively can improve the utilization ratio of N P and K, reduces nutrient loss, can improve soil quality simultaneously, improves quality of agricultural product, and is beneficial to the benign development of agroecosystem.
Embodiment
Below by embodiment, the present invention is specifically described; what be necessary to herein means out is that following examples are only used to further illustrate the present invention; can not be interpreted as limiting the scope of the invention, person skilled in art can make some nonessential improvement and adjustment according to foregoing invention content to the present invention.
embodiment 1
1, biological carbon based slow-release fertilizer preparation
The raw material of biological carbon based slow-release fertilizer comprises the composition of following mass ratio:
Modified biological carbon 30, mixing solutions 3, the wilkinite 6 of cow dung biogas slag (30 order) 30, chemical fertilizer 31, quinhydrones and western pyrrole mass ratio 1:1.
Wherein chemical fertilizer is by the 1:2:2 mixing in mass ratio of urea, calcium superphosphate, potassium sulfate.
Preparation method: mixed according to the above ratio by each composition, in a mold by extruder grain, puts into baking oven after the material screening after granulation and dries, and namely obtains biological carbon based slow-release fertilizer through cooling.
2, modification biological carbon preparation method:
(1) broomcorn straw of collection was pulverized 80 mesh sieves.
(2) broomcorn straw got after the above-mentioned pulverizing of 100g adds the dilute hydrochloric acid 25ml stirring and evenly mixing of 1.0mol/L, sealing and standing 24h, then adds 0.1mol/L cesium nitrate solution 2ml mixing sealing and standing 12h, natural air drying.
(3) above-mentioned process biomass are placed in porcelain crucible compacting, cover lid anaerobism pyrolysis 3 hours under 600 DEG C of environment, heat-up rate is 10 DEG C/min; After pyrolytic reaction terminates, be cooled to after room temperature until crucible and take out.
(4) be the H of 8% by above-mentioned preparation biological carbon and 100ml concentration
2o
2mixing, shakes 24h in an oscillator and takes out, clean post-drying, namely obtain high absorption property biological carbon with distilled water.
(5) charcoal of above-mentioned preparation is inserted in encloses container, add ammoniacal liquor, the reaction of 0.5mol/L platinum nitrate solution 1ml post-heating that 25ml concentration is 25%, react after 2 hours and take out.Regulate reaction vessel pressure between the reaction period, make it maintain 8 standard atmospheric pressures.
embodiment 2
1, biological carbon based slow-release fertilizer preparation
The raw material of biological carbon based slow-release fertilizer comprises the composition of following mass ratio:
Modified biological carbon 32, mixing solutions 3, the wilkinite 6 of cow dung biogas slag (30 order) 30, chemical fertilizer 33, quinhydrones and western pyrrole mass ratio 1:1.
Wherein chemical fertilizer is by the 1:2:2 mixing in mass ratio of urea, calcium superphosphate, potassium sulfate.
Preparation method: mixed according to the above ratio by each composition, in a mold by extruder grain, puts into baking oven after the material screening after granulation and dries, and namely obtains biological carbon based slow-release fertilizer through cooling.
2, modification biological carbon preparation method:
(1) broomcorn straw of collection was pulverized 80 mesh sieves.
(2) broomcorn straw got after the above-mentioned pulverizing of 100g adds the dilute hydrochloric acid 25ml stirring and evenly mixing of 1.0mol/L, sealing and standing 24h, then adds 0.1mol/L cesium nitrate solution 2ml mixing sealing and standing 12h, natural air drying.
(3) above-mentioned process biomass are placed in porcelain crucible compacting, cover lid anaerobism pyrolysis 3 hours under 600 DEG C of environment, heat-up rate is 10 DEG C/min; After pyrolytic reaction terminates, be cooled to after room temperature until crucible and take out.
(4) be the H of 8% by above-mentioned preparation biological carbon and 100ml concentration
2o
2mixing, shakes 24h in an oscillator and takes out, clean post-drying, namely obtain high absorption property biological carbon with distilled water.
(5) charcoal of above-mentioned preparation is inserted in encloses container, add ammoniacal liquor, the reaction of 0.5mol/L platinum nitrate solution 1ml post-heating that 25ml concentration is 25%, react after 2 hours and take out.Regulate reaction vessel pressure between the reaction period, make it maintain 8 standard atmospheric pressures.
embodiment 3
1, biological carbon based slow-release fertilizer preparation
The raw material of biological carbon based slow-release fertilizer comprises the composition of following mass ratio:
Modified biological carbon 32, mixing solutions 3, the wilkinite 5 of cow dung biogas slag (30 order) 27, chemical fertilizer 33, quinhydrones and western pyrrole mass ratio 1:1.
Wherein chemical fertilizer is by the 1:2:2 mixing in mass ratio of urea, calcium superphosphate, potassium sulfate.
Preparation method: mixed according to the above ratio by each composition, in a mold by extruder grain, puts into baking oven after the material screening after granulation and dries, and namely obtains biological carbon based slow-release fertilizer through cooling.
2, modification biological carbon preparation method:
(1) broomcorn straw of collection was pulverized 80 mesh sieves.
(2) broomcorn straw got after the above-mentioned pulverizing of 100g adds the dilute hydrochloric acid 25ml stirring and evenly mixing of 1.0mol/L, sealing and standing 24h, then adds 0.1mol/L cesium nitrate solution 2ml mixing sealing and standing 12h, natural air drying.
(3) above-mentioned process biomass are placed in porcelain crucible compacting, cover lid anaerobism pyrolysis 3 hours under 600 DEG C of environment, heat-up rate is 10 DEG C/min; After pyrolytic reaction terminates, be cooled to after room temperature until crucible and take out.
(4) be the H of 8% by above-mentioned preparation biological carbon and 100ml concentration
2o
2mixing, shakes 24h in an oscillator and takes out, clean post-drying, namely obtain high absorption property biological carbon with distilled water.
(5) charcoal of above-mentioned preparation is inserted in encloses container, add ammoniacal liquor, the reaction of 0.5mol/L platinum nitrate solution 1ml post-heating that 25ml concentration is 25%, react after 2 hours and take out.Regulate reaction vessel pressure between the reaction period, make it maintain 8 standard atmospheric pressures.
embodiment 4
1, biological carbon based slow-release fertilizer preparation
The raw material of biological carbon based slow-release fertilizer comprises the composition of following mass ratio:
Modified biological carbon 30, mixing solutions 3, the wilkinite 5 of cow dung biogas slag (30 order) 27, chemical fertilizer 30, quinhydrones and western pyrrole mass ratio 1:1.
Wherein chemical fertilizer is by the 1:2:2 mixing in mass ratio of urea, calcium superphosphate, potassium sulfate.
Preparation method: mixed according to the above ratio by each composition, in a mold by extruder grain, puts into baking oven after the material screening after granulation and dries, and namely obtains biological carbon based slow-release fertilizer through cooling.
2, modification biological carbon preparation method:
(1) broomcorn straw of collection was pulverized 80 mesh sieves.
(2) broomcorn straw got after the above-mentioned pulverizing of 100g adds the dilute hydrochloric acid 25ml stirring and evenly mixing of 1.0mol/L, sealing and standing 24h, then adds 0.1mol/L cesium nitrate solution 2ml mixing sealing and standing 12h, natural air drying.
(3) above-mentioned process biomass are placed in porcelain crucible compacting, cover lid anaerobism pyrolysis 3 hours under 600 DEG C of environment, heat-up rate is 10 DEG C/min; After pyrolytic reaction terminates, be cooled to after room temperature until crucible and take out.
(4) be the H of 8% by above-mentioned preparation biological carbon and 100ml concentration
2o
2mixing, shakes 24h in an oscillator and takes out, clean post-drying, namely obtain high absorption property biological carbon with distilled water.
(5) charcoal of above-mentioned preparation is inserted in encloses container, add ammoniacal liquor, the reaction of 0.5mol/L platinum nitrate solution 1ml post-heating that 25ml concentration is 25%, react after 2 hours and take out.Regulate reaction vessel pressure between the reaction period, make it maintain 8 standard atmospheric pressures.
embodiment 5
1, biological carbon based slow-release fertilizer preparation
The raw material of biological carbon based slow-release fertilizer comprises the composition of following mass ratio:
Modified biological carbon 30, mixing solutions 3, the wilkinite 5 of cow dung biogas slag (30 order) 27, chemical fertilizer 32, quinhydrones and western pyrrole mass ratio 1:1.
Wherein chemical fertilizer is by the 1:2:2 mixing in mass ratio of urea, calcium superphosphate, potassium sulfate.
Preparation method: mixed according to the above ratio by each composition, in a mold by extruder grain, puts into baking oven after the material screening after granulation and dries, and namely obtains biological carbon based slow-release fertilizer through cooling.
2, modification biological carbon preparation method:
(1) broomcorn straw of collection was pulverized 80 mesh sieves.
(2) broomcorn straw got after the above-mentioned pulverizing of 100g adds the dilute hydrochloric acid 25ml stirring and evenly mixing of 1.0mol/L, sealing and standing 24h, then adds 0.1mol/L cesium nitrate solution 2ml mixing sealing and standing 12h, natural air drying.
(3) above-mentioned process biomass are placed in porcelain crucible compacting, cover lid anaerobism pyrolysis 3 hours under 600 DEG C of environment, heat-up rate is 10 DEG C/min; After pyrolytic reaction terminates, be cooled to after room temperature until crucible and take out.
(4) be the H of 8% by above-mentioned preparation biological carbon and 100ml concentration
2o
2mixing, shakes 24h in an oscillator and takes out, clean post-drying, namely obtain high absorption property biological carbon with distilled water.
(5) charcoal of above-mentioned preparation is inserted in encloses container, add ammoniacal liquor, the reaction of 0.5mol/L platinum nitrate solution 1ml post-heating that 25ml concentration is 25%, react after 2 hours and take out.Regulate reaction vessel pressure between the reaction period, make it maintain 8 standard atmospheric pressures.
embodiment 6
Biological carbon based slow-release fertilizer uses test example:
Pot experiment:
1, two process, i.e. control group and test group are established in this test altogether.Test Bian potted plant growth, basin alms bowl bore 30cm, footpath, end 20cm, high 30cm, every basin fills native 8kg.With common fertilising (executing common Chemical Mixed Fertilizer 5g for base manure) for contrast, using 5g self-control slow release fertilizer is test group, and be for studying thing with paddy rice, after transplanting, the time of infertility keeps 2-3cm water layer.April is sowed, and May transplants, every basin 1 cave, every cave 1 seedling.Multiple three times of each process counterpoise.
2, test-results: test-results shows, control group plant was gathered in September 2, biomass 238g, grain 102g; Control group plant root is flourishing, and plant strain growth is healthy and strong, and heading stage, comparatively control group postponed 5-10 days, and the ripening stage is control group postponement 10-15 days comparatively.Biomass comparatively control group height 5%-15%, Grain Yield height 2%-10% after results.Soil after being gathered in the crops by plant is air-dry, and analytical test finds that test group soil TN, TP, TK organic matter comparatively contrasts soil height 25%-30%, 15%-23%, 16%-24%, 23%-29%.
Claims (8)
1. one kind utilizes broomcorn straw to prepare biological carbon based slow-release fertilizer, it is characterized in that, mainly comprise modification biological carbon, cow dung biogas slag, chemical fertilizer, urease inhibitor/nitrification inhibitor mixing solutions, described modification biological carbon is obtained broomcorn straw high absorption property biological carbon and ammoniacal liquor modification.
2. biological carbon based slow-release fertilizer as claimed in claim 1, it is characterized in that, the mixing solutions of described charcoal and natural pond slag, chemical fertilizer, urease inhibitor and nitrification inhibitor, the mass ratio of tackiness agent are (25 ~ 40): (25 ~ 35): (30 ~ 40): (2 ~ 5): (5 ~ 10).
3. biological carbon based slow-release fertilizer as claimed in claim 1, is characterized in that, described biological carbon back slow-release fertilizer total nutrient (N+P
2o
5+ K
2o)≤20%, Sheng Wu Tan≤30%, You Ji Zhi≤30%.
4. modification biological carbon is obtained by following methods as claimed in claim 1:
(1) the broomcorn straw stalk of collection is pulverized and sieved;
(2) after above-mentioned pulverizing and by certain mass than mixing broomcorn straw stalk in add dilute hydrochloric acid stirring and evenly mixing, sealing and standing 24h, then add cesium nitrate solution mixing sealing and standing 12h, natural air drying;
(3) above-mentioned process biomass are placed in porcelain crucible compacting, cover lid carries out anaerobism pyrolysis; After pyrolytic reaction terminates, be cooled to after room temperature until crucible and take out;
(4) by the biological carbon of above-mentioned preparation and certain density H
2o
2mixing, shakes 24h in an oscillator and takes out, clean post-drying, namely obtain high absorption property biological carbon with distilled water;
(5) charcoal of above-mentioned preparation is inserted in encloses container, add a certain amount of strong aqua, the reaction of platinum nitrate solution post-heating, take out after question response 3-10 hour; Regulate reaction vessel pressure between the reaction period, make it maintain 5-15 standard atmospheric pressure.
5. the preparation of modification biological carbon as claimed in claim 4, it is characterized in that, in step 2, dilute hydrochloric acid concentration is 0.5-2.5mol/L, and cesium nitrate strength of solution is 0.05-1.5mol/L.
6. the preparation of modification biological carbon as claimed in claim 4, it is characterized in that, biomass pyrolytic temperature 400 ~ 700 DEG C in described step 3, pyrolysis time 60-300min, heat-up rate is 5-15 DEG C/min.
7. the preparation of modification biological carbon as claimed in claim 4, is characterized in that, H in described step 4
2o
2concentration is 1 ~ 10%.
8. the preparation of modification biological carbon as claimed in claim 5, it is characterized in that, in described step 5, strong aqua concentration is 5%-28%, and platinum nitrate solution concentration is 0.02-1.0mol/L, and between the reaction period, reaction vessel pressure maintains 5-15 standard atmospheric pressure.
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| CN104789228A (en) * | 2015-03-30 | 2015-07-22 | 江苏省农业科学院 | Combined soil additive, preparation method and combined application method |
| CN104829293A (en) * | 2015-03-27 | 2015-08-12 | 中国科学院地球化学研究所 | A method of reducing gaseous state loss of nitrogen in limestone soil by utilization of charcoal |
| CN106278768A (en) * | 2016-08-28 | 2017-01-04 | 广西平乐农药厂 | A kind of fertilizer for using during corn planting |
| CN107311790A (en) * | 2016-04-26 | 2017-11-03 | 黄名义 | A kind of preparation method for nitrifying modification biological charcoal fertilizer |
| CN108911840A (en) * | 2018-07-16 | 2018-11-30 | 沿河后花园农业观光旅游综合开发有限公司 | A kind of lily special bio charcoal base organic fertilizer and preparation method thereof |
| US11124461B2 (en) | 2019-07-04 | 2021-09-21 | Incitec Pivot Limited | Fertilizer |
| CN113620756A (en) * | 2021-09-26 | 2021-11-09 | 铜川市农业科学研究所 | Biomass nutrient solution and preparation method thereof |
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2014
- 2014-11-25 CN CN201410680095.6A patent/CN104355902A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104829293A (en) * | 2015-03-27 | 2015-08-12 | 中国科学院地球化学研究所 | A method of reducing gaseous state loss of nitrogen in limestone soil by utilization of charcoal |
| CN104789228A (en) * | 2015-03-30 | 2015-07-22 | 江苏省农业科学院 | Combined soil additive, preparation method and combined application method |
| CN104789228B (en) * | 2015-03-30 | 2018-11-06 | 江苏省农业科学院 | A kind of combination soil additive, preparation method and match applying method |
| CN107311790A (en) * | 2016-04-26 | 2017-11-03 | 黄名义 | A kind of preparation method for nitrifying modification biological charcoal fertilizer |
| CN106278768A (en) * | 2016-08-28 | 2017-01-04 | 广西平乐农药厂 | A kind of fertilizer for using during corn planting |
| CN108911840A (en) * | 2018-07-16 | 2018-11-30 | 沿河后花园农业观光旅游综合开发有限公司 | A kind of lily special bio charcoal base organic fertilizer and preparation method thereof |
| 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 |
| CN113620756A (en) * | 2021-09-26 | 2021-11-09 | 铜川市农业科学研究所 | Biomass nutrient solution and preparation method thereof |
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