CN105294324A - Novel carbon-based compound fertilizer and preparation method thereof - Google Patents
Novel carbon-based compound fertilizer and preparation method thereof Download PDFInfo
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Abstract
The invention provides novel carbon-based compound fertilizer and a preparation method thereof. The novel carbon-based compound fertilizer comprises the following components prepared in parts by weight: 30-65 parts of biochar, 35-45 parts of urea and 5-35 parts of calcium superphosphate. The preparation method of the novel carbon-based compound fertilizer comprises the following steps: mixing biochar, urea, calcium superphosphate and potassium fertilizer, smashing, sieving, pelletizing, and then baking, so that the novel carbon-based compound fertilizer is obtained. The novel carbon-based compound fertilizer is produced by reasonably utilizing agricultural waste resources and has the advantages of fixing carbon and reducing discharge, enhancing soil water-retaining fertilizer-retaining capability and promoting soil sustainable utilization; the novel carbon-based compound fertilizer serves as a slow-release fertilizer and has prolonged fertilizer efficiency, the nitrogen element utilization rate can be improved, and the problem of phosphorus residue is solved; and the preparation method of the novel carbon-based compound fertilizer has the advantages of convenience, simplicity and easiness in operation and is applicable to mass production.
Description
Technical field
The present invention relates to the recycling field of biomass, in particular to a kind of Novel carbon base composite fertilizer and preparation method thereof.
Background technology
With the chronicity developing country of agriculture supporting industry, agricultural planting region comparatively disperses as one in China, normally cannot form industrial chain.Agrochemical utilization ratio is low, and agrochemical pollutes comparatively seriously to become in China's agricultural development problem the most significantly.In China, chemical fertilizer ultimate production and total consumption all rank first in the world, but chemical fertilizer utilization exists serious irrational problem, causes the waste of Fertilizer resources, adds agricultural cost.At present, the utilization ratio of Chinese chemical fertilizer is not high, and this season utilization rate of nitrogen fertilizer is only 35%.Utilization rate of fertilizer is on the low side is Problems existing in Chinese agriculture fertilising always, and the utilization ratio of Farmland in China phosphate fertilizer is only 10%-25%.Phosphate fertilizer utilization efficiency is on the low side not only causes the serious wasting of resources, a large amount of phosphoric also can be made to be accumulated in soil, thus cause farmland and environmental pollution.
At present, also a series of nitrogen manure with slow-release function is developed in the world, to improve the utilising efficiency of nitrogen nutrient, but these fertilizer material costs are high, complex process, be unfavorable for large scale application, and most high molecular polymer that contains is main coated fertilizer, wherein major part can not be degradable, easily accumulate in soil, formed " secondary pollution ".Because vegetable plot irrigation quantity is large and pour water frequent; it is soluble that coated fertilizer meets water; difficulty or ease play the provide protection to nitrogen manure; not obvious to the rate of release control effects of nutrient; therefore, developing low-cost, the environment-friendly type slow release nitrogen fertilizer that is applicable to Different Crop become the active demand in production.
About the research of carbon-base slow release fertilizer, mainly contain the invention " charcoal base water conservation control slow-release fertilizer of a kind of environmental protection and its preparation method and application " that invention " a kind of charcoal base ginseng soil conditioner and preparation method thereof " that application number is CN201210007362.4 and application number are CN201410134867.6.The carbon-base slow release fertilizer that the former provides, also need to use binding agent, binding agent can increase burden for soil.The carbon-base slow release fertilizer that the latter provides needs to add degradable water-keeping material, improves the preparation cost of slow-release fertilizer.Application number is the invention " a kind of agriculture and forestry organic waste material charcoal slow-release fertilizer and preparation method thereof " of CN201210295495.6, in this invention, needs nutritive ingredient to make solution, gac is fully adsorbed, solvent comprises water amount is large, and bake out temperature requires to hand over original text, preparation technology's very complicated.
In view of this, special proposition the present invention.
Summary of the invention
The first object of the present invention is to provide a kind of Novel carbon base composite fertilizer, the problem that traditional fertilizer nitrogen element utilization ratio is low to solve, phosphoric pollutes.Described Novel carbon base composite fertilizer has the advantage such as fertilizer efficiency, Appropriate application agricultural wastes resource, carbon fixation and emission reduction, increase soil water-reataining fertilizer-keeping ability, the sustainable use of promotion soil effectively extending fertilizer.Well meet the nutritional needs of plant-growth, effectively accomplished single fertilization, made full use of, less contamination, low residue, can the carburetting effect of fostering and apply fertilizer.
The second object of the present invention is the preparation method providing a kind of described Novel carbon base composite fertilizer, and the method adopts the method for granulator granulation, has the advantages such as simple, controlled, easy enforcement.
In order to realize above-mentioned purpose of the present invention, spy by the following technical solutions:
A kind of Novel carbon base composite fertilizer, comprises the following component according to parts by weight preparation:
Charcoal 30-65 part, urea 35-45 part, calcium superphosphate 5-35 part.
Urea is the important composition of traditional fertilizer, and urea is a kind of organic nitrogenous fertilizer, the urase effect in soil, after being hydrolyzed into volatile salt or bicarbonate of ammonia, and could utilization absorbed by crops.Calcium superphosphate (water soluble quick-acting phosphate fertilizer), also known as general calcium, normal superphosphate, superphosphate, cross lime, be a kind of phosphate fertilizer, calcium superphosphate main component is monocalcium phosphate Ca (H
2pO
4)
2with gypsum CaSO
42H
2o and a small amount of free phosphoric acid, also containing anhydrous slufuric acid Calcium compounds, also known as superphosphate, generally can be applicable to various soil, but in calcareous or strongly acidic soil, easily by soil fixing, usually make granular using, to improve fertilizer efficiency, the germination of plant, long root, branch, solid and ripe can be promoted.
Charcoal be biomass under low-oxygen environment, through high temperature pyrolysis produce a class multi-pore structure, high-specific surface area, high adsorption capacity rich carbon class material.The biomass material preparing charcoal comprises various crude substance and derivative thereof, as organic waste, urban solid garbage, feces of livestock and poultry, waterplant and algae etc. that wood chip, agricultural and industrial activity produce, but most of raw material sources are in agricultural wastes.Raw material sources are extensive, low production cost.The hole of charcoal keeps the ability of nitrogen nutrient ion to play an important role, mainly through realizing the maintenance of moisture to it.Charcoal pore texture can reduce the rate of percolation of moisture, strengthens the adsorptive power of soil and easy leaching loss nutrient element very strong to movability in solution, as the cationic absorption of alkali under the absorption of the nitric nitrogen under high pH condition and low ph condition.In addition, charcoal is proved to the improvement of soil and fertility maintenance effect.Charcoal, as packing material, make use of agricultural wastes resource, effectively eliminates the cultivation obstacle of agricultural, decreases the propagation of disease and pest, carbon fixation and emission reduction, increases soil water-reataining fertilizer-keeping ability, promotes soil sustainable use.Meanwhile, charcoal, as the filler of charcoal base manure material, effectively supplements the deficiency of conventional fertilizers medium trace element, effectively supplements plant nutrition trace element demand.The slow releasing function of charcoal, well meets the nutritional needs of plant, has effectively accomplished single fertilization, has made full use of, less contamination low residue, can play carburetting and foster and apply fertilizer, increases soil quality effect.
Preferably, described Novel carbon base composite fertilizer, specifically comprises the following component according to parts by weight preparation: charcoal 40-55 part, urea 38-42 part, calcium superphosphate 15-25 part.
This scope is the preferable range that Novel carbon base composite fertilizer reaches better fertilizer efficiency.
Preferably, described Novel carbon base composite fertilizer, also comprises the following component according to parts by weight preparation: Repone K 1-5 part, potassium sulfate 5-10 part.
Dissolve very soon after Repone K is manured into soil, and dissociate immediately, the potassium ion in local soil solution and chlorine ion concentration are significantly improved, form concentration gradient, potassium ion and chlorion start to external diffusion.Part potassium ion is directly absorbed by crop, and the positively charged ion of a part on soil colloid carries out replacement effect and adsorbed by soil colloid.The positively charged ion that residual chlorion and potassium ion replace out enters the soil solution.Calcium chloride is formed after neutrality and calcareous soil apply Repone K, the calcium chloride generated is soluble in water, under the condition of area of heavy rainfull, rainy season or irrigation, easily cause the leaching loss of calcium in soil and cause soil compaction, also causing soil progressively acidifying simultaneously, therefore also wanting compounding application organic fertilizer or calcium fertilizer when using Repone K.After Repone K is used, potassium ion is easily adsorbed by soil colloid, and movability is little, and therefore Repone K is preferably used as base manure, also can topdress, but can not make seed manure, otherwise a large amount of chlorions can endanger seed germination and growth of seedling.Neutral or acid soil is used Repone K preferably with fertilizer or ground phosphate rock compounding application, can prevent soil acidification on the one hand, another aspect can also promote the effectuation of phosphorus.But not easily use on saline-alkali soil and fear-chlorion crop.Potassium sulfate outward appearance is in white or colored crystallization or particle, and feature is that moisture absorption is little, and prevented from caking during storage is soluble in water.Be suitable for various crop, base manure can be made, topdress and foliage top dressing.Potassium element generally by adsorption by soil, can not be able to run off, but will take the principle of " a small amount of many meal " on the sandy soil of fertilizer-preserving ability difference.It is best that these two kinds of fertilizer generally like result of use on potassium crop in potato class, melon etc.
A preparation method for described Novel carbon base composite fertilizer, comprises the steps: charcoal, urea, calcium superphosphate to mix, pulverizes, sieves, granulation, then toasts, obtains Novel carbon base composite fertilizer.
By simply mixing, pulverizing, granulation, baking, just can obtain Novel carbon base composite fertilizer.After charcoal and fertilizer Homogeneous phase mixing, do not affect fertilizer efficiency, charcoal can also play slow releasing function.
Preferably, the preparation method of described Novel carbon base composite fertilizer, specifically comprises the steps:
(1) by charcoal, urea, calcium superphosphate, Repone K, potassium sulfate mixing, pulverizing;
(2) particle of making in step (1) is poured into during iron sieves and sieve, according to the size granulation of particle after sieving, then toast, obtain Novel carbon base composite fertilizer.
Novel carbon base composite fertilizer provided by the invention, also comprises potassium chloride fertilizer and potassium sulphate fertilizer, and adopting the method for improved granulator granulation, suitably sprays water in centre, improves the viscosity of powder in granulation process.The tablets press that the present invention adopts is that shaping bucket is sieved in designed, designed granulation, and tablets press is divided into two structures: a part of structure is the rotatory evaporator of the transformation of the way, and another part structure is that the shaping bucket of granulation sub-sieve made reequiped by peanut oil oil drum.After pulverizing, particle is circle not, applies fertilizer not smooth, can affect fertilizer efficiency.
Preferably, the preparation method of described Novel carbon base composite fertilizer, in step (1), the rotating speed of described granulation is 35-45 rev/min, and the time of granulation is 25-35 minute.
Sufficient granulation time, contributes to the formation of particle.
Preferably, the preparation method of described Novel carbon base composite fertilizer, in step (1), the mode of described water spray is interval water spray three times, and the total mass of water spray and the mass ratio of described charcoal are 1:(2-6.5).
Preparation method provided by the invention divides three water sprays, and avoid injection flow rate too much, moisture dispersion is uneven, and meanwhile, charcoal has water-absorbent, can increase granuloplastic viscosity.
Preferably, the preparation method of described Novel carbon base composite fertilizer, in step (2), described sieving is divided into two-layer, is followed successively by 4 orders and 10 orders from top to bottom.
The charcoal base chemical fertilizer that preparation method provided by the invention screens respectively, carries out granulation according to order number size.Wherein, be less than 4 object particles need again after pulverizing be greater than granulation together with 10 objects, not needing between 4-10 order carries out granulation, can directly use as compound manure.Can ensure that Novel carbon base composite fertilizer uniform particle sizes, release rate are consistent like this, easy to use, do not block fertilizer, give full play to fertilizer efficiency.
Preferably, the preparation method of described Novel carbon base composite fertilizer, in step (2), the time of described baking is 11-12 hour, and the temperature of baking is 35-40 DEG C.
Preparation method provided by the invention, low-temperature bake 11-12 hour, dries moisture, contributes to long-term preservation.
Preferably, the preparation method of described Novel carbon base composite fertilizer, in step (2), described baking is specifically baked to water ratio and is down to less than 30%.
Novel carbon base composite fertilizer provided by the invention, need be baked to water content and be reduced to less than 30%, contribute to fertilizer and preserve for a long time, avoid fertiliser granulates inter-adhesive.
Compared with prior art, beneficial effect of the present invention is:
(1) Novel carbon base composite fertilizer provided by the invention, has the charcoal of slow-release function, the advantages such as Appropriate application agricultural wastes resource, carbon fixation and emission reduction, increase soil water-reataining fertilizer-keeping ability, the sustainable use of promotion soil.
(2) Novel carbon base composite fertilizer provided by the invention, as slow release fertilizer, has the fertilizer efficiency of prolongation fertilizer and can improve nitrogen element utilization ratio, solving phosphoric residue problem.
(3) preparation method of Novel carbon base composite fertilizer provided by the invention, convenient, simple, easy handling, is applicable to producing in enormous quantities, widely uses.
Accompanying drawing explanation
In order to be illustrated more clearly in the specific embodiment of the invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 shows the scanning electron microscope diagram after the amplification 250 times of the Novel carbon base composite fertilizer that embodiment 1 example provides;
The Novel carbon base composite fertilizer that Fig. 2 shows embodiment 1 example to be provided amplifies the scanning electron microscope diagram after 5000 times;
Fig. 3 shows the infrared spectrogram of Novel carbon base composite fertilizer that embodiment 1-6 provides and comparative example.
Embodiment
Below in conjunction with the drawings and specific embodiments, technical scheme of the present invention is clearly and completely described, but it will be understood to those of skill in the art that, following described embodiment is the present invention's part embodiment, instead of whole embodiments, only for illustration of the present invention, and should not be considered as limiting the scope of the invention.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.Unreceipted actual conditions person in embodiment,
Conveniently the condition of conditioned disjunction manufacturers suggestion is carried out.Agents useful for same or the unreceipted production firm person of instrument, be and can buy by commercially available the conventional products obtained.
Embodiment 1-9 Novel carbon base composite fertilizer raw material composition (in mass fraction) and preparation method
Wherein, embodiment 1-6 is corn fertilizer, and embodiment 7-9 is dedicated fertilizer for soybean, and embodiment 10-13 is potato special fertilizer.
The preparation method of the Novel carbon base composite fertilizer that embodiment 14 provides is as follows:
By charcoal, urea, calcium superphosphate mixing, pulverizing, granulation, sieve, then toast, obtain Novel carbon base composite fertilizer.
The preparation method of the Novel carbon base composite fertilizer that embodiment 1-3 provides is as follows:
(1) by charcoal, urea, calcium superphosphate, Repone K mixing, pulverizing, powder is added granulation in tablets press, rotating speed is 35 revs/min, granulation time 25 minutes, interval water spray three times, and the ratio of water spray total mass and charcoal quality is 1:2;
(2) particle of making in step (1) is poured into during iron sieves and sieve, sieve is followed successively by 4 orders and 10 orders from top to bottom, wherein, be less than 4 object particles need again after pulverizing be greater than granulation together with 10 objects, not needing between 4-10 order carries out granulation, directly can use as compound manure, then toast 11 hours at 35 DEG C, be baked to water ratio and be down to 30%, obtain Novel carbon base composite fertilizer.
The preparation method of the Novel carbon base composite fertilizer that embodiment 4-9 provides is as follows:
(1) by charcoal, urea, calcium superphosphate, Repone K, potassium sulfate mixing, pulverizing, powder is added granulation in tablets press, rotating speed is 40 revs/min, granulation time 30 minutes, interval water spray three times, the ratio of water spray total mass and charcoal quality is 1:4;
(2) particle of making in step (1) is poured into during iron sieves and sieve, sieve is followed successively by 4 orders and 10 orders from top to bottom, wherein, be less than 4 object particles need again after pulverizing be greater than granulation together with 10 objects, not needing between 4-10 order carries out granulation, directly can use as compound manure, then toast 11.5 hours at 40 DEG C, be baked to water ratio and be down to 20%, obtain Novel carbon base composite fertilizer.
The preparation method of the Novel carbon base composite fertilizer that embodiment 10-12 provides is as follows:
(1) by charcoal, urea, calcium superphosphate, Repone K, potassium sulfate mixing, pulverizing, powder is added granulation in tablets press, rotating speed is 45 revs/min, granulation time 35 minutes, interval water spray three times, the ratio of water spray total mass and charcoal quality is 1:6.5;
(2) particle of making in step (1) is poured into during iron sieves and sieve, sieve is followed successively by 4 orders and 10 orders from top to bottom, wherein, be less than 4 object particles need again after pulverizing be greater than granulation together with 10 objects, not needing between 4-10 order carries out granulation, directly can use as compound manure, then toast 12 hours at 45 DEG C, be baked to water ratio and be down to 10%, obtain Novel carbon base composite fertilizer.
Ratio of briquetting analysis, the pH of experimental example 1 different ingredients charcoal base manure analyze, net weight analysis
Experiment records pH, the net content of the Novel carbon base composite fertilizer that embodiment 1-12 provides, quality of sieving.
The testing method of pH: weigh in the balance and get each sample 0.1g, preparation 10ml solution, and filter, obtain the stillness of night, survey each solution with pH meter, record its pH.
Net weight testing method: take various sample 1g in furnace pot, dry 24h in the baking box of 40 degrees Celsius, survey its net content with bench balance, and record data.Experimental result is as shown in table 1:
The net weight of the composite fertilizer that table 1: embodiment 1-12 provides, pH, situation of sieving
Experiment confirms, fertilizer slant acidity pH is all less than 6.Charcoal is mostly in alkalescence, be manured into soil and can improve acid soil pH value, this is mainly because containing more base cation in charcoal ash content, as calcium, magnesium, potassium etc., the commutative reduction hydrogen ion of these base cations and exchangeable aluminum ion concentration, in charcoal ash content, base cation content is higher: charcoal alkalescence is larger.Can find out in table 1 that the acid-basicity of fertilizer is generally in slightly acidic clearly, and the pH of corn special-purpose fertilizer increases along with maize straw carbon content increases pH value, the alkalescence can knowing maize straw carbon thus by inference is stronger than N, P, K composite fertilizer, the potential of hydrogen of fertilizer can be changed, to adapt to the soil of different pH values by the content changing charcoal.
The Novel carbon base composite fertilizer microtexture of experimental example 2 embodiment 1
Get the Novel carbon base composite fertilizer of about specification 1mm embodiment 1 on scanning electronic microscope pallet, within the scope of 1um-2um, observation scans and records SEM figure.
The column of Spherical Carbon base manure and cellular charcoal surface attachment, granular crystallisate can be seen in charcoal base manure scanning electron microscope figure (Fig. 1 and Fig. 2).These crystallisates are the crystallisate of nitrogenous fertilizer, potash fertilizer, phosphate fertilizer.
Therefore, experiment can prove, after adding charcoal granulation, do not affect the fertilizer of former N, P, K fertilizer, this fertilizer can normally use.
Experimental example 3IR analyzes
The Novel carbon base composite fertilizer of oven dry is clayed into power, takes 1-2mg, make infrared scan sample with KBr compressing tablet respectively, with Buddhist nun's high-tensile strength 5700 model Fourier transformation infrared spectrometer in wave number 4000-400cm
-1scope interscan also records infrared light transmission rate spectrogram.
IR test is carried out to the Novel carbon base composite fertilizer that embodiment 1-6 provides, and contrasts the IR test of charcoal, calcium superphosphate, urea, potassium sulfate, Repone K, calcium superphosphate.
As seen from Figure 3, the infrared spectrogram of urea, potassium superphosphate, potassium sulfate, charcoal and embodiment 1-6 is followed successively by from top to bottom.The position of the several major absorbance peak of charcoal base manure appears at 3400,1590,1500,800cm
-1near, all see charcoal in absorption peak, Repone K, urea, calcium superphosphate absorption peak, and between often kind of special fertilizer, absorption peak similarity is high, has a large amount of charcoals in charcoal base manure, still keep the characteristic of original molecule, carbon exists mainly with aromatic nucleus greatly, and its structure is very stable.Containing a large amount of hydrophilic radicals in charcoal base manure, the existence of these functional groups makes charcoal base manure have stronger absorption property.
N, P, K content of experimental example 4 embodiment 1-12 Novel carbon base composite fertilizer and slow-releasing
Alkali-hydrolyzable nitrogen measures: the content of alkali-hydrolyzable nitrogen and organic content and gate of the quality monitoring, and organic content is high, and amount of cure is high, and validity nitrogen content is also high; Otherwise organic content is low, amount of cure is low, and the content of validity nitrogen is also low.Alkali-hydrolyzable nitrogen content as plant nitrogen nutrition comparatively inorganic nitrogen have better dependency, so measure alkali-hydrolyzable nitrogen than measure ammonia-state nitrogen and nitric nitrogen more can be definite reflect soil at no distant date for nitrogen level.During with base extraction soil, organonitrogen and the ammonium nitrogen of facile hydrolysis are converted into ammonia, and nitric nitrogen is then first converted into ammonium through ferrous sulfate.With boric acid absorbing ammonia, then use standard acidometric titration, calculate hydrolyzable nitrogen content.
PK nutrient measures: 1. take 0.191g potassium chloride fertilizer, and the fertile thin up of 0.387g SODIUM PHOSPHATE, MONOBASIC is mixed with the mixed mark solution of 10ppm, 7ppm, 5ppm, 3ppm, 1ppm.2. take all fertilizer 0.1g 20ml that adds water respectively to dissolve, and use centrifuge 4h, filtration obtains supernatant liquor, then gets supernatant liquor constant volume in 50ml volumetric flask of 1ml.
Record NPK content and their slow-releasing of the Novel carbon base composite fertilizer that embodiment 1-12 provides respectively.Experimental result is as shown in table 2:
N, P, K nutrient situation of the different charcoal base manure of table 2
Experiment proves, N, P, K are that actual concentration of ordinary dissolution will lower than theoretical value, and in table 2, in corn fertilizer, the K concentration of embodiment 1,2,3 reduces successively, and the P concentration of embodiment 2 is minimum, and in embodiment 4,5,6, P, K concentration of embodiment 5 is the highest.In dedicated fertilizer for soybean, in embodiment 7, P, K content is the highest, but is more or less the same.In potato special fertilizer, P, K concentration of embodiment 11 is the highest.From table, it can also be seen that P nutrient theoretical content is higher than K theoretical content, but actual water-soluble K is higher than water-soluble P, it is relevant that this phenomenon and charcoal have adsorptivity, namely in dissolving charcoal base manure process, a large amount of K is adsorbed by charcoal, and be filtered loss, therefore charcoal has stronger adsorptivity to K, more weak to P absorption property.Charcoal has stronger adsorptive power to ion on the whole, different to different ions absorption property, after charcoal adsorbed ion, makes the metal ion of dissolving less, plays slow release effect to fertilizer.
Experimental example 5 embodiment 1-6 fertilizer efficiency is tested
The cultivation maize seedling of two weeks is contrasted, test corn charcoal base manure material on the impact of milpa proterties and output, research fertilizer efficiency, and with do not add any fertilizer blank assay, only add common chemical fertilizer and the experiment of only adding charcoal contrasts.Wherein, in chemical fertilizer, the ratio of N, P, K is 35:5:5.Experimental result is as shown in table 3:
Table 3 charcoal base manure material is on the impact of milpa proterties and output
Experiment proves, compare with contrast experiment, adopt Novel carbon base composite fertilizer provided by the invention, milpa growing way is best, output is the highest.
In sum, Novel carbon base composite fertilizer provided by the invention, with the addition of the charcoal with slow-release function, Appropriate application agricultural wastes resource, reduce the pollution that the biomass combustions such as stalk bring, carbon fixation and emission reduction, increase soil water-reataining fertilizer-keeping ability, the sustainable use of promotion soil.Novel carbon base composite fertilizer provided by the invention, can use as slow release fertilizer, has the fertilizer efficiency that extends fertilizer and can improve nitrogen element utilization ratio, avoids too much using and the phosphoric that is not absorbed by plants remains in soil and pollutes.The preparation method of Novel carbon base composite fertilizer provided by the invention, convenient, simple, easy handling, is applicable to producing in enormous quantities, uses extensively.
Although illustrate and describe the present invention with specific embodiment, however it will be appreciated that can to make when not deviating from the spirit and scope of the present invention many other change and amendment.Therefore, this means to comprise all such changes and modifications belonged in the scope of the invention in the following claims.
Claims (10)
1. a Novel carbon base composite fertilizer, is characterized in that, comprises the following component according to parts by weight preparation:
Charcoal 30-65 part, urea 35-45 part, calcium superphosphate 5-35 part.
2. Novel carbon base composite fertilizer according to claim 1, is characterized in that, specifically comprises the following component according to parts by weight preparation:
Charcoal 40-55 part, urea 38-42 part, calcium superphosphate 15-25 part.
3. Novel carbon base composite fertilizer according to claim 1 and 2, is characterized in that, also comprises the following component according to parts by weight preparation:
Repone K 1-5 part, potassium sulfate 5-10 part.
4. a preparation method for the Novel carbon base composite fertilizer according to any one of claim 1-3, is characterized in that, comprise the steps:
Charcoal, urea, calcium superphosphate mixed, pulverize, sieve, granulation, then toast, obtain Novel carbon base composite fertilizer.
5. the preparation method of Novel carbon base composite fertilizer according to claim 4, is characterized in that, specifically comprise the steps:
(1) by charcoal, urea, calcium superphosphate, Repone K, potassium sulfate mixing, pulverizing;
(2) particle of making in step (1) is poured into during iron sieves and sieve, according to the size granulation of particle after sieving, then toast, obtain Novel carbon base composite fertilizer.
6. the preparation method of Novel carbon base composite fertilizer according to claim 5, is characterized in that, in step (1), the rotating speed of described granulation is 35-45 rev/min, and the time of granulation is 25-35 minute.
7. the preparation method of Novel carbon base composite fertilizer according to claim 5, it is characterized in that, in step (1), the mode of described water spray is interval water spray three times, and the total mass of water spray and the mass ratio of described charcoal are 1:(2-6.5).
8. the preparation method of Novel carbon base composite fertilizer according to claim 5, is characterized in that, in step (2), described sieving is divided into two-layer, is followed successively by 4 orders and 10 orders from top to bottom.
9. the preparation method of Novel carbon base composite fertilizer according to claim 5, is characterized in that, in step (2), the time of described baking is 11-12 hour, and the temperature of baking is 35-40 DEG C.
10. the preparation method of Novel carbon base composite fertilizer according to claim 5, is characterized in that, in step (2), described baking is specifically baked to water ratio and is down to less than 30%.
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| CN106748475A (en) * | 2016-12-26 | 2017-05-31 | 华侨大学 | A kind of banana caulo charcoal base bio-fertilizer and its preparation method and application |
| CN108112446A (en) * | 2017-12-29 | 2018-06-05 | 杭州欢伯生物技术有限公司 | A kind of biomass carbon mud and preparation method thereof |
| CN108752140A (en) * | 2018-08-15 | 2018-11-06 | 安徽科技学院 | A kind of charcoal base manure material and preparation method thereof |
| CN112174745A (en) * | 2020-11-09 | 2021-01-05 | 河南省农业科学院植物营养与资源环境研究所 | Biochar compound fertilizer for improving soil fertility and preparation method and application thereof |
| CN115011351A (en) * | 2021-03-04 | 2022-09-06 | 北方民族大学 | Application of biomass slow-release agent in improvement of sandy soil |
| CN113277915A (en) * | 2021-06-15 | 2021-08-20 | 上海交通大学 | Preparation method of binder-free composite carbon-based fertilizer prepared from biogas residues |
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