CN104211545B - A kind of acid ground special bio charcoal base compound organic and inorganic fertilizer and preparation method thereof - Google Patents
A kind of acid ground special bio charcoal base compound organic and inorganic fertilizer and preparation method thereof Download PDFInfo
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Abstract
The present invention relates to the fertilizer field of acid ground, particularly a kind of acid ground special bio charcoal base compound organic and inorganic fertilizer and preparation method thereof. Acid ground special bio charcoal base compound organic and inorganic fertilizer, is made up of following raw material: charcoal, acidity adjustment material, nitrogen substance, phosphorus containg substances, containing potassium material, mineral powder, adhesive for granulating; Adhesive for granulating is concave convex rod stone flour and sodium metasilicate. This Chemical Mixed Fertilizer using charcoal as controlled-release material with sorbing material, mixes and makes according to a certain percentage with other compositions, and each composition collocation rationally, well meets the nutritional need of plant growth; Had good sustained release effect, disposable employed; There is the effect that improves soil pH value, raising carbon base in soil capacity, improves soil aggregate, porosity, reduction heavy metal and organic pollution toxicity, reach the effect that saving of labor economizes fertilizer, improves agricultural output and quality. The present invention also provides the preparation method of this Chemical Mixed Fertilizer, and preparation method is simple.
Description
Technical field
The present invention relates to the fertilizer field of acid ground, in particular to a kind of acid soilEarth special bio charcoal base compound organic and inorganic fertilizer and preparation method thereof.
Background technology
Red soil, red earth, laterite etc. are the In The Soils in south China area, shouldClass soil is taking slant acidity as main, and most soil pHs are between 4.5-6.0. Along with changing in recent yearsFertile apply in a large number and organic-inorganic is joined and executed unreasonablely, soil acidification has becoming of increasing the weight of graduallyGesture, and in subrange, had a strong impact on fertility. Caused by soil acidificationDiversity of soil microorganism declines, structure of community is unreasonable, heavy metal toxicity strengthens and all aggravatesThe deterioration of the ecological environment, also increased to a certain extent the hidden danger of food security. Research tableBright, the effective ways that improve farmland quality under the prerequisite that does not affect crop yield are organic nothingsMachine complex fertilizer is joined and is executed. Current, because organic fertilizer quality on market is uneven, peasantWish is not positive and use the reasons such as proportioning is unreasonable, and organic fertilizer also field still exists hugeLarge space.
Charcoal (biochar) refer to living beings under anoxic condition Pintsch process form onePlant the stability carbon source with loose structure, particular functional group. Compared with ordinary student material,Charcoal has that absorption property is good, preserve moisture and fertility ability is strong, in soil, mineralization rate is slow etc.Feature. Nonetheless, due to its higher energy consumption, the market prospects of charcoal direct returning to farmlandStill be not expected. Therefore, expand utilization the pushing away charcoal technology of charcoal at fertilizerExtensively there is very large value. Organic-inorganic is the heat that recent domestic is paid close attention in conjunction with fertilizer scienceOne of point, also has Patents and article to publish based on charcoal base compound organic and inorganic fertilizer.But the charcoal of different raw material and preparation condition pH value, porosity, specific area,The aspects such as specific functional groups structure exist very large difference, and the difference of its difference has also causedTotally different as sorbing material effect. The relevant technical products of current application has been ignored on the one handWhether the embodiments of charcoal is with to use Soils In The Region fundamental property suitable; Exist on the other handIn preparation technology, be only the mechanical mixture of charcoal and npk fertilizer, do not consider biologySome special nature of charcoal needs special process to maximize favourable factors and minimize unfavourable ones, and could obtain good effect.
Summary of the invention
The object of the present invention is to provide a kind of acid ground special bio charcoal base organic and inorganic compoundMixed fertilizer and preparation method thereof, to solve the above problems.
Provide in an embodiment of the present invention a kind of acid ground special bio charcoal base organic nothingMachine Chemical Mixed Fertilizer, made by following raw material: charcoal, acidity adjustment material, nitrogen substance,Phosphorus containg substances, containing potassium material, mineral powder, adhesive for granulating;
Described adhesive for granulating is concave convex rod stone flour and sodium metasilicate;
Wherein, described charcoal, described acidity adjustment material, described nitrogen substance, described inPhosphorus containg substances, the described mass ratio containing potassium material, described mineral powder and described concave convex rod stone flourFor 17-33:0.9-1.7:20-32:7-15:15-20:0-10:9-17.
Preferably, described charcoal, described acidity adjustment material, described nitrogen substance, instituteState phosphorus containg substances, described containing potassium material, described mineral powder, described concave convex rod stone flour and described inThe mass ratio of sodium metasilicate is 20-30:1-1.5:25-30:10-15:18-20:6-10:15-17.
Preferably, described charcoal is by peanut shell, banana stalks, bagasse, maize strawTwo or more raw materials make.
Preferably, the specific area of described charcoal is 15-35m2/ g, pH value is 8.5-9.0,Carbon content is 930-970g/kg.
Preferably, described charcoal is prepared by following methods:
The raw material of charcoal is cut into diameter and be not more than 2.5cm, 450-500 DEG C under anoxybioticCracking 2-3 hour and make.
Preferably, after described charcoal is made, pulverized 200 orders and obtained finished product with top sieve.
Preferably, described acidity adjustment material is humic acid, and the pH of described humic acid is3.8-4.0 granularity is greater than 200 orders.
Preferably, described nitrogen substance is urea; Described phosphorus containg substances is MAP or phosphorusAcid two ammoniums; Described is potassium sulfate or potassium chloride containing potassium material.
Preferably, described mineral powder is zeolite powder or agstone; The granularity of described mineral powderBe greater than 200 orders.
Preferably, the granularity of described acid ground special bio charcoal base compound organic and inorganic fertilizer is3.5-5.5mm pH value is 7.0-8.0.
The present invention also provides the preparation of acid ground special bio charcoal base compound organic and inorganic fertilizerMethod, comprises the following steps:
Described charcoal is mixed with described acidity adjustment material, and making water content is 40-50%The first mixture, room temperature was placed after 22-26 hour, dry to water content be 23-27%,Obtain the second mixture;
By described nitrogen substance, phosphorus containg substances, containing potassium material, mineral powder and concave convex rod stone flourMix with described the second mixture, granulation, dries and obtains described acid ground special bio charcoalBase compound organic and inorganic fertilizer;
Wherein, in granulation process, spray described sodium metasilicate.
Preferably, described oven dry for dry to water content be below 12%.
A kind of acid ground special bio charcoal base organic-inorganic that the embodiment of the present invention providesChemical Mixed Fertilizer, using charcoal as controlled-release material with sorbing material, with acidity adjustment material,Nitrogen substance, phosphorus containg substances, mix and make containing potassium material, mineral powder, adhesive for granulatingThe each composition collocation of compound organic and inorganic fertilizer rationally, is well positioned to meet the battalion of plant growthThe demand of supporting; Had good sustained release effect, disposable employed, have both organic and inorganic dualFunction neither can cause and burn seedling early stage in using, also the unlikely de-fertilizer of later stage etc. that causesProblem; And there is the soil pH value of raising, improve carbon base in soil capacity, improve soilThe effect of crumb structure, porosity, reduction heavy metal and organic pollution toxicity,Well improve acid ground, improved crop root environment, strengthened root system to nutrientAbsorption, thereby reach the effect that saving of labor economizes fertilizer, improves agricultural output and quality.The present invention also provides the system of this acid ground special bio charcoal base compound organic and inorganic fertilizerPreparation Method, preparation method is simple, and the acid ground special bio charcoal base making is organicInorganic composite mixed fertilizer is used rear effective.
Detailed description of the invention
Below by specific embodiment, the present invention is described in further detail.
Provide in an embodiment of the present invention a kind of acid ground special bio charcoal base organic nothingMachine Chemical Mixed Fertilizer, made by following raw material: charcoal, acidity adjustment material, nitrogen substance,Phosphorus containg substances, containing potassium material, mineral powder, adhesive for granulating;
Described adhesive for granulating is concave convex rod stone flour and sodium metasilicate;
Wherein, described charcoal, described acidity adjustment material, described nitrogen substance, described inPhosphorus containg substances, the described mass ratio containing potassium material, described mineral powder and described concave convex rod stone flourFor 17-33:0.9-1.7:20-32:7-15:15-20:0-10:9-17.
A kind of acid ground special bio charcoal base organic-inorganic that the embodiment of the present invention providesChemical Mixed Fertilizer, using charcoal as controlled-release material with sorbing material, with acidity adjustment material,Nitrogen substance, phosphorus containg substances, mix and make containing potassium material, mineral powder, adhesive for granulatingThe each composition collocation of compound organic and inorganic fertilizer rationally, is well positioned to meet the battalion of plant growthThe demand of supporting; Had good sustained release effect, disposable employed, have both organic and inorganic dualFunction neither can cause and burn seedling early stage in using, also the unlikely de-fertilizer of later stage etc. that causesProblem; And there is the soil pH value of raising, improve carbon base in soil capacity, improve soilThe effect of crumb structure, porosity, reduction heavy metal and organic pollution toxicity,Well improve acid ground, improved crop root environment, strengthened root system to nutrientAbsorption, thereby reach the effect that saving of labor economizes fertilizer, improves agricultural output and quality.Wherein, the consumption of sodium metasilicate consumption routinely.
In order to reach the better soil environment of improving, its proportioning more meets the nutritional need of crop,The Chemical Mixed Fertilizer obtaining has better slow releasing function, economizes fertilizer, raising to have better saving of laborThe effect of agricultural output and quality, preferably, described charcoal, described acidity adjustmentMaterial, described nitrogen substance, described phosphorus containg substances, described containing potassium material, described mineral powder,The mass ratio of described concave convex rod stone flour and described sodium metasilicate is20-30:1-1.5:25-30:10-15:18-20:6-10:15-17。
Preferably, described charcoal is by peanut shell, banana stalks, bagasse, maize strawTwo or more raw materials make. Selected specific raw material is prepared charcoal, the charcoal of preparationWell meet at aspects such as pH value, porosity, specific area, specific functional groups structuresCharacterize as the charcoal of acid soil improving agent, corrected the former material to charcoal in the pastMaterial property matter requires not strict, only meets the cacodoxy that preparation condition gets final product, and this is biologicalThe important breakthrough that charcoal utilizes in fertilizer field.
For the charcoal that makes is in pH value, porosity, specific area, specific functional groupsThe aspects such as structure better meet as the charcoal of acid soil improving agent and characterize, preferably,The specific area of described charcoal is 15-35m2/ g, pH value is 8.5-9.0, carbon content is930-970g/kg. Particularly, described charcoal is prepared by following methods: former by charcoalMaterial cuts into diameter and is not more than 2.5cm, under anoxybiotic 450-500 DEG C cracking 2-3 hour and makeBecome. Through multiple authentication, each raw material is mixed to get after preparing by the method according to a certain percentageCharcoal, the scope of its parameter can reach: specific area is 15-35m2/ g, pH value is8.5-9.0, carbon content is 930-970g/kg.
For charcoal better mixes with other material compositions, and reach well slowRelease effect, preferably, after described charcoal is made, pulverized 200 orders and must become with top sieveProduct.
The present invention is based on the biomass carbon raw material of high-quality, ensured Organic Ingredients from sourceQuality. Simultaneously according to the quality requirement of organic-inorganic compound fertilizer and southern area soil,Crop feature has defined the sign of suitable biomass carbon. Realizing organic-inorganic compound fertilizerJoin when executing and can reach and improve soil pH value, raising carbon base in soil capacity, improvement soilThe effect of earth crumb structure, porosity, reduction heavy metal and organic pollution toxicity. CauseThis this product has broad application prospects, in south China area sustainable agriculture is producedBring into play huge effect.
Humic acid can with water in metal ion clutch, be conducive to nutrient and transmit to crop,And can improve soil texture, be beneficial to the growth of crops. Preferably, described acidity adjustment thingMatter is humic acid, and the pH of described humic acid is 3.8-4.0, and granularity is greater than 200 orders. PH is3.8-4.0 is easier to realize both acid-base balances and nutrient chelating with charcoal; The corruption of this granularityGrowing acid can better mix with other compositions, reaches good suction-operated and slow releasing function.
Urea is a kind of neutral fertilizer, is applicable to various soil and plants; It is easily preserved, and makesWith convenient, little to the destruction of soil; MAP or Diammonium phosphate (DAP) are well supplemented phosphorusElement, to meet the demand of plant growth; Potassium sulfate or potassium chloride are the master of common potash fertilizerWant composition, can well supplement potassium element. Preferably, described nitrogen substance is urea; InstituteStating phosphorus containg substances is MAP or Diammonium phosphate (DAP); Described is potassium sulfate or chlorination containing potassium materialPotassium.
Preferably, described mineral powder is zeolite powder or agstone; The granularity of described mineral powderBe greater than 200 orders. Agstone and zeolite powder have good suction-operated, obtain to realizeChemical Mixed Fertilizer there is better suction-operated, reach better slow release effect.
Preferably, the granularity of described acid ground special bio charcoal base compound organic and inorganic fertilizer is3.5-5.5mm pH value is 7.0-8.0. The Chemical Mixed Fertilizer of this granularity and pH is easy to fertilising evenly,And had good sustained release effect.
The present invention also provides the preparation of acid ground special bio charcoal base compound organic and inorganic fertilizerMethod, comprises the following steps:
Described charcoal is mixed with described acidity adjustment material, and making water content is 40-50%The first mixture, room temperature was placed after 22-26 hour, dry to water content be 23-27%,Obtain the second mixture;
By described nitrogen substance, phosphorus containg substances, containing potassium material, mineral powder and concave convex rod stone flourMix with described the second mixture, granulation, dries and obtains described acid ground special bio charcoalBase compound organic and inorganic fertilizer;
Wherein, in granulation process, spray described sodium metasilicate.
Be in the past directly utilize or utilize the measure such as pickling, washing after recycle charcoalNatural mode, introduces appropriate humic acid in the present invention, mix real by charcoal with humic acidExisting both acid-base balances and nutrient chelating; Break through the fertilizer causing more by force due to charcoal alkalescenceThe underproof bottleneck that utilizes of material acidity.
After mixing with humic acid, charcoal do not dry completely before granulation, before having ensured on the one handThe stability of phase sex change effect; On the other hand, thorough oven dry and secondary granulation have been reduced againThe production cost of water spray.
The present invention, in conjunction with fertilizer detection method, has taken into full account the phosphorous potassium composition of charcoal.While calculating aborning fertilizer nutrient formula, phosphate fertilizer and potash fertilizer dosage calculate critical point,Deliberately add raw material without worrying that total nutrient amount is not up to standard in producing as conventional fertilizers again.
Preferably, described oven dry for dry to water content be below 12%. Answering of this water contentMixed fertilizer is easy to preserve, and fertilising is convenient.
A kind of acid ground special bio charcoal base organic-inorganic that the embodiment of the present invention providesChemical Mixed Fertilizer, using charcoal as controlled-release material with sorbing material, with acidity adjustment material,Nitrogen substance, phosphorus containg substances, mix and make containing potassium material, mineral powder, adhesive for granulatingThe each composition collocation of compound organic and inorganic fertilizer rationally, is well positioned to meet the battalion of plant growthThe demand of supporting; Had good sustained release effect, disposable employed, have both organic and inorganic dualFunction neither can cause and burn seedling early stage in using, also the unlikely de-fertilizer of later stage etc. that causesProblem; And there is the soil pH value of raising, improve carbon base in soil capacity, improve soilThe effect of crumb structure, porosity, reduction heavy metal and organic pollution toxicity,Well improve acid ground, improved crop root environment, strengthened root system to nutrientAbsorption, thereby reach the effect that saving of labor economizes fertilizer, improves agricultural output and quality.The present invention also provides the system of this acid ground special bio charcoal base compound organic and inorganic fertilizerPreparation Method, preparation method is simple, and the acid ground special bio charcoal base making is organicInorganic composite mixed fertilizer is used rear effective.
Embodiment 1
Peanut shell, bagasse are crushed to respectively to diameter≤2.5cm, and at 450 DEG C, anoxybiotic splitsSeparate 2 hours, after pulverizing, cross respectively 200 mesh sieves, by peanut shell, bagasse, cornstalk systemThe charcoal obtaining is that 1:1:1.5 mixes according to weight ratio;
By mixed charcoal and pH be 3.8, the humic acid of crossing 200 mesh sieves is with weight ratioFor 19:1 mixes, regulate moisture to 50%, room temperature is placed 24 hours post-drying to moisture and is25%, be the second mixture;
By the second mixture, urea, MAP, potassium chloride, concave convex rod stone flour, limeStone flour carries out disc granulation after 18:32:15:20:9:6 mixes taking weight ratio,The sodium silicate solution that in granulation process, evenly spray concentration is 0.2%, dries to water content and isBelow 12%, obtain acid ground special bio charcoal base compound organic and inorganic fertilizer.
This Chemical Mixed Fertilizer pH is 7.02, and granularity is 5.5mm, and the content of organic matter is 16%, nitrogenPhosphorus potassium nutrition ratio is: 17:7:12, can be used for southern acidity or faintly acid soil (5.0< pH < 6.0) vegetables, paddy rice, production single fertilization and the Sugarcane Fertilization of corn,Reach the effect of saving of labor's volume increase, culture fertility.
This Chemical Mixed Fertilizer is tested taking cabbage heart (kind is as glossy dark green thick tongue) as target crop, simultaneously withIn contrast, the application quantity of nitrogen phosphorus potassium in fertilizer and composite fertilizer divides for equivalent fertilizer and composite fertilizerNot according to 170,70,120 (kghm-2). The disposable use of this product, in control treatmentFertilizer is as the disposable use of base fertilizer, and composite fertilizer is as base fertilizer and topdress according to 6:4 ratioUse; The fertilizer amount that this product and contrast are used is 1000kghm-2. Continuous two seasonsTest, result is as shown in table 1.
Table 1 cabbage heart result of the test
As can be seen from Table 1: compared with the control, the special life of acid ground provided by the inventionThing charcoal base compound organic and inorganic fertilizer has better physical and chemical indexs such as the soil organism, pH, CECEffect; And improving output, improving Vitamin C content, reducing nitrate content sideFace also has good performance.
Embodiment 2
Peanut shell, bagasse, cornstalk are crushed to respectively to diameter≤2.5cm, at 480 DEG CLower anoxybiotic cracking 2.5 hours, crosses respectively 300 mesh sieves after pulverizing, by peanut shell, bagasse,The charcoal that cornstalk makes is that 1:1:2 mixes according to weight ratio;
By charcoal and pH be 4, the humic acid of crossing 200 mesh sieves is mixed taking weight ratio as 19:1Close, regulate moisture to 40%, it is 23% that room temperature is placed 26 hours post-drying to moisture,It is the second mixture;
By the second mixture, urea, Diammonium phosphate (DAP), potassium chloride, concave convex rod stone flour with weightAfter mixing for 33:25:10:15:17, carry out extruder grain, equal in granulation processEven spray concentration is 0.2% sodium silicate solution, and drying to water content is, below 12%, to obtain final productAcid ground special bio charcoal base compound organic and inorganic fertilizer.
This Chemical Mixed Fertilizer pH is 7.88, and granularity is 4.5mm, and the content of organic matter is 30%, nitrogenPhosphorus potassium nutrition ratio is: 13:5:9, can be used for southern strongly acidic soil (4.0 < pH < 5.0),The poor plantation eucalyptus of lower, the basic soil fertility of the content of organic matter, pine tree, tea tree, fruit tree,, there is good effect on the hillock, slope of sugarcane etc. to raising acid ground organic matter, pH, CEC etc.Really; Improve output, reached the effect of saving of labor's volume increase, culture fertility.
Embodiment 3
Peanut shell, banana stalks, cornstalk are crushed to respectively to diameter≤2.5cm, at 500 DEG CLower anoxybiotic cracking 2.5 hours, crosses respectively 250 mesh sieves after pulverizing, by peanut shell, banana stalks,The charcoal that cornstalk makes is that 1:0.8:1.2 mixes according to weight ratio;
By charcoal and pH be 3.8, the humic acid of crossing 200 mesh sieves is taking weight ratio as 19:1Mix, regulate moisture to 45%, it is 25% that room temperature is placed 24 hours post-drying to moisture,Be the second mixture;
The second mixture, urea, MAP, potassium sulfate, concave convex rod stone flour (are crossed to 200Mesh sieve), zeolite powder (cross 200 mesh sieves) is taking weight ratio as 30:20:7:18:15:10After mixing, carry out extruder grain, the silicic acid that in granulation process, evenly spray concentration is 0.2%Sodium solution, dry to water content be below 12%, obtaining acid ground special bio charcoal base hasMachine inorganic composite mixed fertilizer.
This Chemical Mixed Fertilizer pH is 7.6, and granularity is 5mm, and the content of organic matter is 27%, nitrogen phosphorusPotassium nutrition ratio is: 10:3:9; Can be used for southern strongly acidic soil (4.0 < pH < 5.0),Soil fertility level is higher, harden comparatively serious old vegetable plot, banana garden, fruit tree and peanut,Winter potato etc.
This Chemical Mixed Fertilizer is tested taking leaf mustard (kind is as Hong Kong bamboo mustard) as target crop, simultaneously withIn contrast, the application quantity of nitrogen phosphorus potassium in fertilizer and composite fertilizer is pressed for equivalent fertilizer and composite fertilizerAccording to 150,45,135 (kghm-2). The disposable use of this product, organic in control treatmentFertile in the disposable use of base fertilizer, composite fertilizer is used according to 6:4 ratio with topdressing as base fertilizer;The fertilizer amount that this product and contrast are used is 1500kghm-2. Knot is tested in continuous two quarterly testsFruit is as shown in table 2.
Table 2 leaf mustard result of the test
As can be seen from Table 2, compared with the control, the special life of acid ground provided by the inventionThing charcoal base compound organic and inorganic fertilizer has better raising acid ground organic matter, pH, CEC etc.Effect; And also having aspect raising output, Vitamin C content, soluble sugar contentWell effect.
Embodiment 4
Peanut shell, banana stalks, cornstalk are crushed to respectively to diameter≤2.5cm, at 500 DEG CLower anoxybiotic cracking 2.5 hours, crosses respectively 400 mesh sieves after pulverizing, by peanut shell, banana stalks,The charcoal that cornstalk makes is that 1:1.2:1 mixes according to weight ratio;
By charcoal and pH be 4.0, the humic acid of crossing 200 mesh sieves is taking weight ratio as 19:1Mix, regulate moisture to 45%, it is 27% that room temperature is placed 22 hours post-drying to moisture,Be the second mixture;
The second mixture, urea, MAP, potassium chloride, concave convex rod stone flour (are crossed to 200Mesh sieve), agstone (cross 200 mesh sieves) is taking weight ratio as 34:22:12:15:17:10 carry out extruder grain after mixing, and in granulation process, evenly spray concentration is 0.2%Sodium silicate solution, dry to water content be below 12%, obtain acid ground special bio charcoalBase compound organic and inorganic fertilizer.
This Chemical Mixed Fertilizer pH is 8.0, and granularity is 3.5mm, and the content of organic matter is 30%, nitrogenPhosphorus potassium nutrition ratio is: 12:6:9; Can be used for the serious acid ground (pH < 4.0) in south,As force level fundamentally open up virgin soil, hillock, slope etc., for plant eucalyptus, pine tree,Tea tree, oil tea, fruit tree, sugarcane etc., to improving acid ground organic matter, pH, CEC etc.There is good effect, promote soil pH and fertility to reach, and can improve output,Reach the effect of saving of labor's volume increase.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention,For a person skilled in the art, the present invention can have various modifications and variations. AllWithin the spirit and principles in the present invention, any amendment of doing, be equal to replacement, improvement etc.,Within all should being included in protection scope of the present invention.
Claims (8)
1. an acid ground special bio charcoal base compound organic and inorganic fertilizer, its feature existsIn, made by following raw material: charcoal, acidity adjustment material, nitrogen substance, phosphorous thingMatter, containing potassium material, mineral powder, adhesive for granulating;
Described adhesive for granulating is concave convex rod stone flour and sodium metasilicate;
Wherein, described charcoal, described acidity adjustment material, described nitrogen substance, described inPhosphorus containg substances, the described mass ratio containing potassium material, described mineral powder and described concave convex rod stone flourFor 20-30:1-1.5:25-30:10-15:18-20:6-10:15-17;
Described charcoal by two kinds in peanut shell, banana stalks, bagasse, maize straw withUpper raw material is made;
The specific area of described charcoal is 15-35m2/ g, pH value is 8.5-9.0, carbon contentFor 930-970g/kg;
Described acid ground special bio charcoal base compound organic and inorganic fertilizer is made by the following methodStandby:
Described charcoal is mixed with described acidity adjustment material, and making water content is 40-50%The first mixture, room temperature was placed after 22-26 hour, dry to water content be 23-27%,Obtain the second mixture;
By described nitrogen substance, phosphorus containg substances, containing potassium material, mineral powder and concave convex rod stone flourMix with described the second mixture, granulation, dries and obtains described acid ground special bio charcoalBase compound organic and inorganic fertilizer;
Wherein, in granulation process, spray described sodium metasilicate.
2. acid ground special bio charcoal base organic and inorganic compound according to claim 1Mixed fertile, it is characterized in that, described charcoal is prepared by following methods:
The raw material of charcoal is cut into diameter and be not more than 2.5cm, 450-500 DEG C under anoxybioticCracking 2-3 hour and make.
3. acid ground special bio charcoal base organic and inorganic compound according to claim 1Mixed fertile, it is characterized in that, described acidity adjustment material is humic acid, the pH of described humic acidFor 3.8-4.0, granularity is greater than 200 orders.
4. acid ground special bio charcoal base organic and inorganic compound according to claim 1Mixed fertile, it is characterized in that, described nitrogen substance is urea; Described phosphorus containg substances is phosphoric acid oneAmmonium or Diammonium phosphate (DAP); Described is potassium sulfate or potassium chloride containing potassium material.
5. acid ground special bio charcoal base organic and inorganic compound according to claim 1Mixed fertile, it is characterized in that, described mineral powder is zeolite powder or agstone; Described mineral powderGranularity be greater than 200 orders.
6. acid ground special bio charcoal base organic and inorganic compound according to claim 1Mixed fertile, it is characterized in that, described acid ground special bio charcoal base compound organic and inorganic fertilizerGranularity is 3.5-5.5mm, and pH value is 7.0-8.0.
7. the organic nothing of acid ground special bio charcoal base described in claim 1-6 any oneThe preparation method of machine Chemical Mixed Fertilizer, is characterized in that, comprises the following steps:
Described charcoal is mixed with described acidity adjustment material, and making water content is 40-50%The first mixture, room temperature was placed after 22-26 hour, dry to water content be 23-27%,Obtain the second mixture;
By described nitrogen substance, phosphorus containg substances, containing potassium material, mineral powder and concave convex rod stone flourMix with described the second mixture, granulation, dries and obtains described acid ground special bio charcoalBase compound organic and inorganic fertilizer;
Wherein, in granulation process, spray described sodium metasilicate.
8. acid ground special bio charcoal base organic and inorganic compound according to claim 7Mixed fertile preparation method, is characterized in that, described oven dry for dry to water content be 12% withUnder.
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| CN103964924B (en) * | 2014-05-14 | 2016-04-20 | 张铭强 | Biological carbon energy Water soluble fertilizer |
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| CN107973651A (en) * | 2017-12-27 | 2018-05-01 | 福建省农业科学院土壤肥料研究所 | A kind of multi-functional charcoal base compound organic and inorganic fertilizer and preparation method thereof |
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Effective date of registration: 20190118 Address after: 510000 No. 483 Wushan Road, Tianhe District, Guangzhou City, Guangdong Province Co-patentee after: Agricultural Resources and Environment Institute of Guangdong Academy of Agricultural Sciences Patentee after: South China Agricultural University Address before: 510630 Soil and Fertilizer Institute, Guangdong Academy of Agricultural Sciences, Wushan Road, Tianhe District, Guangzhou City, Guangdong Province Patentee before: Agricultural Resources and Environment Institute of Guangdong Academy of Agricultural Sciences |