CN108546200A - A kind of special sustained and controlled release composite fertilizer of radix scutellariae and preparation method thereof - Google Patents
A kind of special sustained and controlled release composite fertilizer of radix scutellariae and preparation method thereof Download PDFInfo
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- CN108546200A CN108546200A CN201810784606.7A CN201810784606A CN108546200A CN 108546200 A CN108546200 A CN 108546200A CN 201810784606 A CN201810784606 A CN 201810784606A CN 108546200 A CN108546200 A CN 108546200A
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- coated urea
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- boric acid
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B1/00—Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
- C05B1/02—Superphosphates
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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
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
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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
- 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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- 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
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
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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
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Abstract
The invention discloses special sustained and controlled release composite fertilizers of a kind of radix scutellariae and preparation method thereof, active ingredient is made of coated urea, calcium superphosphate, potassium sulfate, boric acid and manganese sulfate, wherein the weight ratio of coated urea, calcium superphosphate, potassium sulfate, boric acid and manganese sulfate ranging from 0.5 ~ 5：5~25：1~10：0.05~0.5：0.5~6.The invention discloses a kind of sustained and controlled release composite fertilizer material dedicated for radix scutellariae, including coated urea, calcium superphosphate, potassium sulfate, boric acid and manganese sulfate, wherein coated urea is made of sulfur coated urea, quinhydrones and dicyandiamide, wherein quinhydrones is urease inhibitor, dicyandiamide is nitrification inhibitor, the present invention makes nitrogenous fertilizer delay controlled release, effectively extend fertilizer efficiency, reduce fertilizer application frequency, raise labour productivity, and to improve the yield and quality of radix scutellariae, increases the value and economic benefit of medicinal plant plantation.
Description
Technical field
The present invention relates to a kind of compound fertilizers more particularly to a kind of special sustained and controlled release composite fertilizer of radix scutellariae and preparation method thereof.
Background technology
Radix scutellariae (Scutellaria baicalensis Georgi) is the drying of Labiatae (Labiatae) plant radix scutellariae
Root is distributed in the ground such as northwest China, northeast, North China and Henan, Shandong, Sichuan, radix scutellariae is also for the large Chinese medicine of common certified products
Ten thousand mu of radix scutellariae rule are had in the city Shangzhou District in Souther mountain of Shaanxi province Shangluo City famous one of " five big quotient's medicine of the Qinling Mountains ", Science and Technology Department of Shaanxi Province
Generalized plants Demonstration Base.Flavone compound includes scutelloside, wogonoside, baicalein, the Chinese Huang that separated identification obtains
A kind of reed mentioned in ancient books element, thousand paper layer elements etc. are the main chemical compositions of radix scutellariae, and wherein scutelloside is《Pharmacopeia》The index components of defined radix scutellariae, it is yellow
Also contain a variety of chemical combination such as flavanone, Check ears ketone, terpene, alkaloid, glucose, sucrose, sterol, volatile ingredient in a kind of reed mentioned in ancient books
Object.Radix scutellariae also has antibacterial, anti-inflammatory, antiviral, antioxygen in addition to having effects that the tradition such as heat-clearing, eliminating dampness, removing toxic substances, hemostasis, tocolysis
The functions such as change, antitumor, with the expansion of radix scutellariae application value and range, wild resource has been unable to meet growing market
Demand, artificial growth have become inexorable trend.
Implement the important symbol that rational application of fertilizers is modern precision agriculture, according to formula research and development are with strong points, fertilizer efficiency is good
Special fertilizer receives praises from customers and is rapidly developed, and is widely used to various industrial crops, grain and oil crop, forest and flower garden
Meadow etc..At present to improve medicinal plant yield and quality, promotes peasant to save Zhi Zengxiao, be engaged in Chinese medicine special fertilizer researcher and get over
Come more, and shows out good development prospect especially.But ignore the supply of various nutrients in the planting process of radix scutellariae, organic fertilizer with
Inorganic fertilizer is unbalance, and the unreasonable and improper fertilization that applies fertilizer causes utilization rate of fertilizer low, leads to radix scutellariae crop trophic disturbance, under quality
Drop, medical value reduce；Arable soil character deteriorates simultaneously, serious environmental pollution, and the productive potentialities of radix scutellariae and soil etc. are certainly
Right resource efficiency cannot play, and limit the yield and quality of radix scutellariae；Additionally, due to radix scutellariae be herbaceos perennial, 2 years
More than life commodity Root yield and active constituent content significantly improve, and due to crop cycle longer reality, general fertilizer needs
It repeatedly to apply fertilizer, reduce labor productivity, therefore a kind of sustained and controlled release composite fertilizer of suitable radix scutellariae growth of research and development is necessary, and
And there are no any enterprises or personal disclosure for the special complex fertilizer of radix scutellariae.
Invention content
In order to solve artificial growth radix scutellariae low output, medical value is low, the problem of needing repeatedly to apply fertilizer, the invention discloses
A kind of special sustained and controlled release composite fertilizer of radix scutellariae and preparation method thereof, goal of the invention is for supplementing radix scutellariae nutrient elements required for the growth
And trace element, increase soil fertility, nitrogenous fertilizer is made to delay controlled release, effectively extend fertilizer efficiency, reduce fertilizer application frequency, improve labour production
Rate increases the value and economic benefit of medicinal plant plantation to improve the yield and quality of radix scutellariae.
The above-mentioned purpose of the present invention is achieved by the following technical programs：
The present invention provides a kind of special sustained and controlled release composite fertilizers of radix scutellariae, and active ingredient is by coated urea, calcium superphosphate, sulfuric acid
Potassium, boric acid and manganese sulfate composition, the wherein weight ratio of coated urea, calcium superphosphate, potassium sulfate, boric acid and manganese sulfate are ranging from
0.5~5：5~25：1~10：0.05~0.5：0.5~6.
Preferably, the weight ratio of active ingredient coated urea, calcium superphosphate, potassium sulfate, boric acid and manganese sulfate ranging from 0.8
~2：10~15：2~6：0.08~0.2：1~1.5.
Preferably, the weight ratio of active ingredient coated urea, calcium superphosphate, potassium sulfate, boric acid and manganese sulfate is 1：12：4：
0.1：1.2.
Preferably, the coated urea is made of sulfur coated urea, quinhydrones and dicyandiamide, wherein the mixing of quinhydrones and dicyandiamide
Object is coated on sulfur coated urea surface, and the content of the quinhydrones is the 1% of sulfur coated urea, and the content of the dicyandiamide is sulfur coated urea
10%.
Preferably, in the mixture of the quinhydrones and dicyandiamide include sodium carboxymethylcellulose, wherein carboxymethyl cellulose
The content of plain sodium is 4%.
A kind of preparation method of the special sustained and controlled release composite fertilizer of radix scutellariae as described above, includes the following steps：
Step 1：Coated urea is prepared, quinhydrones, dicyandiamide and sodium carboxymethylcellulose are mixed, then apply mixture
It is overlying on sulfur coated urea surface, is rolled and is granulated using machinery, dry screening is spare；
Step 2：By coated urea, calcium superphosphate, potassium sulfate, boric acid and manganese sulfate according to weight ratio ranging from 0.5~5：
5~25：1~10：0.05~0.5：0.5~6 carries out dispensing, then by coated urea, calcium superphosphate, potassium sulfate, boric acid and sulphur
Sour manganese is uniformly mixed and made into granule.
Compared with prior art, the beneficial effects of the invention are as follows：
(1) the invention discloses a kind of sustained and controlled release composite fertilizer material dedicated for radix scutellariae, including coated urea, peroxophosphoric acid
Calcium, potassium sulfate, boric acid and manganese sulfate, wherein coated urea are made of sulfur coated urea, quinhydrones and dicyandiamide, and wherein quinhydrones is urase
Inhibitor, dicyandiamide are nitrification inhibitor, and the present invention makes nitrogenous fertilizer delay controlled release, effectively extend fertilizer efficiency, reduce fertilizer application frequency, improve labor
Dynamic productivity increases the value and economic benefit of medicinal plant plantation to improve the yield and quality of radix scutellariae；
(2) composite fertilizer of the present invention is dedicated for radix scutellariae, and fertilising object height is accurate, compatibility science, according to the growth of radix scutellariae
Demand, compatibility go out the fertilizer ratio of most suitable growth, and composite fertilizer's quality is good, fertilizer efficiency is long, plant recovery of nutrient is high, safety and environmental protection,
Fertilization effect is excellent；
(3) composite fertilizer's nutrition of the present invention is comprehensive, and nutrient content is high, improves radix scutellariae yield, ensures quality, balance nutrient,
Coordinate supply, reduce cost, improve benefit, reduce pollution, protect ecology, realize nutrients resource saving, it is environmental-friendly and
Chinese medicine Quality advance.
Description of the drawings
Fig. 1 is that each processing urea nitrogen attainment divides cumulative release amount schematic diagram.
Specific implementation mode
To keep the object of the invention, technical solution and advantage clearer, embodiments of the present invention will be made into one below
Step is described in detail.
Trial zone of the present invention is located at Shaanxi Province Shangluo City Shangzhou District radix scutellariae planting base, and Shangzhou District is located in Shan southeast Qinling Mountains abdomen
Ground, boundary belong to southern warm temperate zone to north subtropical border land between 109 ° 30 ' -111 ° 16 ' of east longitude, 33 ° 16 ' -34 ° 12 ' of north latitude
The mountainous region monsoon climatic province of band, Shangzhou District are that native Mountainous Area agrotype is complicated, are experimental field selected in river valley Chuan Yuan
Loamy texture moisture soil region on landforms terrace, prepartion of land, soil property are almost the same, and agricultural production conditions are good, experiment before
Uniform stationing diagonal method in field acquires 0~40cm soil mixing samples, indoor processing, detection and according to soil fertility grading
Reference index is evaluated.
Fertilising on medicinal plant have it is apparent influence to be confirmed by related test, be the rational Fertilization Level of determination to protect
The stable yield, quality controllable of card plantation radix scutellariae uses three factor quadratic saturation D optimum design (i.e. 310 of N P and K in field
Scheme), 10 processing, 3 repetitions, 30 area 4m × 6m=24m are set2Cell, random arrangement field trial, and in radix scutellariae
It applies fertilizer three times in 2 years of growth, amount of application three times is identical.
Embodiment 1
The application active ingredient coated urea, calcium superphosphate, potassium sulfate, boric acid and manganese sulfate weight ratio be 0.5：5：1：
0.05：0.5, total weight 1kg, the wherein weight of coated urea are 70g, and the weight that conversion obtains quinhydrones is 0.7g, dicyandiamide
Weight be 7g.
Coated urea is prepared, 0.7g quinhydrones, 7g dicyandiamides and sodium carboxymethylcellulose are mixed, then coat mixture
It in sulfur coated urea surface, is rolled and is granulated using machinery, dry screening is spare；
By coated urea, calcium superphosphate, potassium sulfate, boric acid and manganese sulfate according to weight ratio be 0.5：5：1：0.05：0.5 into
Coated urea, calcium superphosphate, potassium sulfate, boric acid and manganese sulfate are then uniformly mixed and made into granule by row dispensing.
Embodiment 2
The application active ingredient coated urea, calcium superphosphate, potassium sulfate, boric acid and manganese sulfate weight ratio be 5：25：10：
0.5：6, total weight 1kg, the wherein weight of coated urea are 100g, and the weight that conversion obtains quinhydrones is 1g, the weight of dicyandiamide
Amount is 10g.
Coated urea is prepared, 1g quinhydrones, 10g dicyandiamides and sodium carboxymethylcellulose are mixed, then coat mixture
It in sulfur coated urea surface, is rolled and is granulated using machinery, dry screening is spare；
By coated urea, calcium superphosphate, potassium sulfate, boric acid and manganese sulfate according to weight ratio be 5：25：10：0.5：6 carry out
Coated urea, calcium superphosphate, potassium sulfate, boric acid and manganese sulfate are then uniformly mixed and made into granule by dispensing.
Embodiment 3
The application active ingredient coated urea, calcium superphosphate, potassium sulfate, boric acid and manganese sulfate weight ratio be 0.8：10：
2：0.08：1, total weight 1kg, the wherein weight of coated urea are 58g, and the weight that conversion obtains quinhydrones is 0.58g, dicyandiamide
Weight be 5.8g.
Coated urea is prepared, 0.58g quinhydrones, 5.8g dicyandiamides and sodium carboxymethylcellulose are mixed, then by mixture
It coated on sulfur coated urea surface, is rolled and is granulated using machinery, dry screening is spare；
By coated urea, calcium superphosphate, potassium sulfate, boric acid and manganese sulfate according to weight ratio be 0.8：10：2：0.08：1 into
Coated urea, calcium superphosphate, potassium sulfate, boric acid and manganese sulfate are then uniformly mixed and made into granule by row dispensing.
Embodiment 4
The application active ingredient coated urea, calcium superphosphate, potassium sulfate, boric acid and manganese sulfate weight ratio be 2：15：6：
0.2：1.5, total weight 1kg, the wherein weight of coated urea are 80g, and the weight that conversion obtains quinhydrones is 0.8g, dicyandiamide
Weight is 8g.
Coated urea is prepared, 0.8g quinhydrones, 8g dicyandiamides and sodium carboxymethylcellulose are mixed, then coat mixture
It in sulfur coated urea surface, is rolled and is granulated using machinery, dry screening is spare；
By coated urea, calcium superphosphate, potassium sulfate, boric acid and manganese sulfate according to weight ratio be 2：15：6：0.2：1.5 carrying out
Coated urea, calcium superphosphate, potassium sulfate, boric acid and manganese sulfate are then uniformly mixed and made into granule by dispensing.
Embodiment 5
The application active ingredient coated urea, calcium superphosphate, potassium sulfate, boric acid and manganese sulfate weight ratio be 1：11：3：
0.15：0.8, total weight 1kg, the wherein weight of coated urea are 63g, and the weight that conversion obtains quinhydrones is 0.63g, dicyandiamide
Weight be 6.3g.
Coated urea is prepared, 0.63g quinhydrones, 6.3g dicyandiamides and sodium carboxymethylcellulose are mixed, then by mixture
It coated on sulfur coated urea surface, is rolled and is granulated using machinery, dry screening is spare；
By coated urea, calcium superphosphate, potassium sulfate, boric acid and manganese sulfate according to weight ratio be 1：11：3：0.15：0.8 into
Coated urea, calcium superphosphate, potassium sulfate, boric acid and manganese sulfate are then uniformly mixed and made into granule by row dispensing.
Embodiment 6
The application active ingredient coated urea, calcium superphosphate, potassium sulfate, boric acid and manganese sulfate weight ratio be 3：8：5：
0.3：1.2, total weight 1kg, the wherein weight of coated urea are 171g, and the weight that conversion obtains quinhydrones is 1.71g, dicyandiamide
Weight be 17.1g.
Coated urea is prepared, 1.71g quinhydrones, 17.1g dicyandiamides and sodium carboxymethylcellulose are mixed, then by mixture
It coated on sulfur coated urea surface, is rolled and is granulated using machinery, dry screening is spare；
By coated urea, calcium superphosphate, potassium sulfate, boric acid and manganese sulfate according to weight ratio be 3：8：5：0.3：1.2 carrying out
Coated urea, calcium superphosphate, potassium sulfate, boric acid and manganese sulfate are then uniformly mixed and made into granule by dispensing.
Embodiment 7
The application active ingredient coated urea, calcium superphosphate, potassium sulfate, boric acid and manganese sulfate weight ratio be 1：12：4：
0.1：1.2, total weight 1kg, the wherein weight of coated urea are 55g, and the weight that conversion obtains quinhydrones is 0.55g, dicyandiamide
Weight be 5.5g.
Coated urea is prepared, 0.55g quinhydrones, 5.5g dicyandiamides and sodium carboxymethylcellulose are mixed, then by mixture
It coated on sulfur coated urea surface, is rolled and is granulated using machinery, dry screening is spare；
By coated urea, calcium superphosphate, potassium sulfate, boric acid and manganese sulfate according to weight ratio be 1：12：4：0.1：1.2 carrying out
Coated urea, calcium superphosphate, potassium sulfate, boric acid and manganese sulfate are then uniformly mixed and made into granule by dispensing.
Embodiment 8
The application active ingredient coated urea, calcium superphosphate, potassium sulfate, boric acid and manganese sulfate weight ratio be 2：13：5：
0.15：1.1, total weight 1kg, the wherein weight of coated urea are 94g, and the weight that conversion obtains quinhydrones is 0.94g, dicyandiamide
Weight be 9.4g.
Coated urea is prepared, 0.94g quinhydrones, 9.4g dicyandiamides and sodium carboxymethylcellulose are mixed, then by mixture
It coated on sulfur coated urea surface, is rolled and is granulated using machinery, dry screening is spare；
By coated urea, calcium superphosphate, potassium sulfate, boric acid and manganese sulfate according to weight ratio be 2：13：5：0.15：1.1 into
Coated urea, calcium superphosphate, potassium sulfate, boric acid and manganese sulfate are then uniformly mixed and made into granule by row dispensing.
Embodiment 9
The application active ingredient coated urea, calcium superphosphate, potassium sulfate, boric acid and manganese sulfate weight ratio be 1.2：11：
4：0.11：1, total weight 1kg, the wherein weight of coated urea are 69g, and the weight that conversion obtains quinhydrones is 0.69g, dicyandiamide
Weight be 6.9g.
Coated urea is prepared, 0.69g quinhydrones, 6.9g dicyandiamides and sodium carboxymethylcellulose are mixed, then by mixture
It coated on sulfur coated urea surface, is rolled and is granulated using machinery, dry screening is spare；
By coated urea, calcium superphosphate, potassium sulfate, boric acid and manganese sulfate according to weight ratio be 1.2：11：4：0.11：1 into
Coated urea, calcium superphosphate, potassium sulfate, boric acid and manganese sulfate are then uniformly mixed and made into granule by row dispensing.
Embodiment 10
Check experiment is set simultaneously, selects the common nitrogen, phosphorus and potassium fertilizer that can be bought currently on the market.
It is experiment Production rate object with biennial scutellariae,radix, 4m is harvested per cell2, root is completely dug out, cleans, go it
Skin and fibrous root, 80 DEG C of drying of baking oven measure dry mass and are scaled to a hectare yield.Radix scutellariae complex chemical composition, in view of《Pharmacopeia》Rule
Determine scutelloside as radix scutellariae index components and must not be less than 9% requirement, test to the dry scutellariae,radix of harvest through crushing, at sieving
Reason, using the content of ultrasonic and circulated extraction determined by ultraviolet spectrophotometry its scutelloside as evaluate radix scutellariae quality it is whether up to standard according to
According to.
Under the premise of test process radix scutellariae requisite quality, to test radix scutellariae yield and calculate yield effect with reference to market price
Benefit deducts the economic benefit of fertilizers input measuring and calculating fertilizer treatment, calculates the amount of increasing income and increases income rate, is shown in Table 1.
The amount of increasing income (member/hm2)=(tests the yield of yield-check experiment) × unit price
1 Examples 1 to 10 different ratio of table tests yield and Economic Efficiency
Composite fertilizer of the present invention can dramatically increase the yield of radix scutellariae as can be seen from Table 1, and production benefit is produced according to field trial
Amount and local market medicinal material procurement price calculate (20.00 yuan/kg of Shanglou radix scutellariae market price dry weights), and the yield of check experiment is
4001.778kg/hm2, the application fertilising after yield be all higher than 5000kg/hm2, reach as high as 6255.556kg/hm2, total to receive
Benefit is all higher than 100000 yuan/hm2, reach as high as 125111.1 yuan/hm2, while increasing income rate and being all higher than 20%, 36% is reached as high as,
Therefore radix scutellariae special complex fertilizer of the present invention can be effectively used for radix scutellariae, promote radix scutellariae increasing both production and income, improve the valence of medicinal plant plantation
Value and economic benefit.
The application delays controlled release coat urea nitrogen nutrient cumulative release amount experiment：
Accurately weighing each processing 2.5000g fertilizer and 100g, experimental field wind desiceted soil is fitted into small plastic bag, after mixing
A certain amount of distilled water is added, makes its water content up to 30% (be equivalent to field capacity 100%), then seals, close to soil
1 horizontally-arranged ventilation hole (totally 6) is pricked above earth at 1cm to create aerobic environment, is placed in 25 DEG C of biochemical constant incubator.For
Examination nitrogen source is urea (containing N46%), during culture, daily using weight method moisturizing 1 time, so that soil moisture content is maintained at field and holds
The 60%~65% of water is separately added into same amount of urea (U), urea (U)+quinhydrones (HQ), urea (U)+bis- in the soil
Cyanamide (DCD), sulfur coated urea (SCU), sulfur coated urea (SCU)+quinhydrones (HQ)+dicyandiamide (DCD), while being not added with pair of urea
According to experiment, the measurement that 4 repeating samples carry out soil nitrogen is adopted in the 7th, 14,21,28,35,42d respectively, respectively handles nitrogen nutrient
Cumulative release amount is shown in Fig. 1.
As seen from Figure 1, each to handle nitrogen nutrient cumulative release curve in increase trend during constant temperature incubation, wherein
It is the processing of urea that Nitrogen Accumulation burst size amplification is maximum, increases to 42d's from the 250.87mg/kg of 1d
1046.98mg/kg；Nitrogen Accumulation burst size amplification minimum is sulfur coated urea (SCU)+quinhydrones (HQ)+dicyandiamide (DCD), always
In incubation time nitrogen is handled compared with urea (U), urea (U)+quinhydrones (HQ), urea (U)+dicyandiamide (DCD), sulfur coated urea (SCU)
Plain cumulative release amount reduces by 58.4%, 33.3%, 12.96%, 11.05% respectively, show sulfur coated urea (SCU)+quinhydrones (HQ)+
The lower nitrogen of dicyandiamide (DCD) processing delays controlled release ability and is handled well compared with other.
Urease inhibitor hydroquinone (HQ) can delay the hydrolysis of urea, so that urea is spread and be moved to deeper soil layer
In, to reduce ammonium state and ammoniacal nitrogen total concentration in topsoil, to reduce ammonia loss by volatilization.Nitrification inhibitor dicyandiamide
(DCD) it is nitrification inhibitor for improving utilization rate of nitrogen fertilizer, is capable of the oxidation of urease inhibiting effective hydrolysate, makes it to hand over
Change state NH4 +Form withhold for a long time in the soil.Sulfur coated urea (SCU) be with sulphur be main lapping to granular urea
It is wrapped up, realizes to the sustained-controll-release fertiliser of the slow release of nitrogen, belong to inorganic coating class slow release fertilizer.
It is aided with urease inhibitor or nitrification inhibitor in urea, urea NH in soil can be slowed down2The hydrolysis of-N and NH4 +- N to NO3 -The oxidation of-N, reduces HN3Loss caused by volatilization.The mechanism of action of urease inhibitor and nitrification inhibitor is
Difference, urease inhibitor can delay the hydrolysis of urea in soil to reduce HN3Volatilization loss to delaying NH indirectly4 +Oxidation
For NO3 -, and nitrification inhibitor is then direct inhibition HN4 +It is oxidized to NO3 -And reduce NO3 -Leaching and N2And N2O isothermal chamber gas
Body discharges, therefore effect is not notable always during exclusive use.Urease inhibitor is added in urea when simultaneously
Quinhydrones (HQ) and when nitrification inhibitor dicyandiamide (DCD), can effectively inhibit soil urease liveness to delay hydrolysis of urea, show
It writes and inhibits NH in soil4 +The oxidation of-N will keep higher NH the long periods4 +The content of-N simultaneously can reduce NO3 -- N leachings and
The possibility of denitrification loss.Sulfur coated urea (SCU) is due to there is the protection of coated fertilizer sulphur, to show to nitrogen controlled release
Long-term effect.Based on above-mentioned, the slow controlled release nitrogen of sulfur coated urea (SCU)+quinhydrones (HQ)+dicyandiamide (DCD) processing in this research
Effect it is more notable compared with sulfur coated urea (SCU), urea (U)+quinhydrones (HQ), urea (U)+dicyandiamide (DCD).
Quinhydrones, dicyandiamide 4% sodium carboxymethylcellulose (binder) are coated on sulfur coated urea surface, machinery in the application
It rolls and is granulated, dry screening is spare, and wherein quinhydrones additive amount is the 1% of sulfur coated urea dosage, and dicyandiamide additive amount is urinated for sulphur clothing
The 10% of plain dosage.
The application composite fertilizer only needs fertilising three times in two years what radix scutellariae was grown, and amount of application three times is identical, and general
Fertilizer needs to apply fertilizer at least 6 times or more, therefore the application composite fertilizer reduces fertilizer application frequency, improves labor productivity.
The invention discloses a kind of sustained and controlled release composite fertilizer material dedicated for radix scutellariae, including coated urea, calcium superphosphate, sulphur
Sour potassium, boric acid and manganese sulfate, wherein coated urea are made of sulfur coated urea, quinhydrones and dicyandiamide, and wherein quinhydrones inhibits for urase
Agent, dicyandiamide are nitrification inhibitor, and the present invention makes nitrogenous fertilizer delay controlled release, effectively extend fertilizer efficiency, reduce fertilizer application frequency, improve labour life
Yield increases the value and economic benefit of medicinal plant plantation to improve the yield and quality of radix scutellariae.
Composite fertilizer of the present invention is dedicated for radix scutellariae, and fertilising object height is accurate, compatibility science, according to the growth need of radix scutellariae
It asks, compatibility goes out the fertilizer ratio of most suitable growth, and composite fertilizer's quality is good, fertilizer efficiency is long, plant recovery of nutrient is high, safety and environmental protection, applies
Fertile excellent effect.
Composite fertilizer's nutrition of the present invention is comprehensive, and nutrient content is high, improves radix scutellariae yield, ensures quality, balance nutrient, coordination
Supply, reduces cost, improves benefit, and reduces pollution, protects ecology, realizes nutrients resource saving, environmental-friendly and Chinese medicine
The unification of Quality advance three.
The preferred embodiment for the present invention is explained in detail above in conjunction with attached drawing, but the present invention is not limited to above-mentioned implementations
Mode within the knowledge of a person skilled in the art can also be without departing from the purpose of the present invention
It makes a variety of changes.
Many other changes and remodeling can be made by not departing from the spirit and scope of the present invention.It should be appreciated that the present invention is not
It is limited to specific embodiment, the scope of the present invention is defined by the following claims.
Claims (6)
1. a kind of special sustained and controlled release composite fertilizer of radix scutellariae, it is characterised in that：Active ingredient by coated urea, calcium superphosphate, potassium sulfate,
Boric acid and manganese sulfate composition, the wherein weight ratio of coated urea, calcium superphosphate, potassium sulfate, boric acid and manganese sulfate ranging from 0.5 ~
5：5~25：1~10：0.05~0.5：0.5~6.
2. the special sustained and controlled release composite fertilizer of a kind of radix scutellariae according to claim 1, it is characterised in that：Active ingredient coating urine
The weight ratio ranging from 0.8 ~ 2 of element, calcium superphosphate, potassium sulfate, boric acid and manganese sulfate：10~15：2~6：0.08~0.2：1~1.5.
3. the special sustained and controlled release composite fertilizer of a kind of radix scutellariae according to claim 2, it is characterised in that：Active ingredient coating urine
Element, calcium superphosphate, potassium sulfate, boric acid and manganese sulfate weight ratio be 1：12：4：0.1：1.2.
4. according to a kind of special sustained and controlled release composite fertilizer of radix scutellariae of claim 1 ~ 3 any one of them, it is characterised in that：The coating
Urea is made of sulfur coated urea, quinhydrones and dicyandiamide, and wherein the mixture of quinhydrones and dicyandiamide is coated on sulfur coated urea surface, institute
The content for stating quinhydrones is the 1% of sulfur coated urea, and the content of the dicyandiamide is the 10% of sulfur coated urea.
5. the special sustained and controlled release composite fertilizer of a kind of radix scutellariae according to claim 4, it is characterised in that：The quinhydrones and dicyandiamide
Mixture in include sodium carboxymethylcellulose, wherein the content of sodium carboxymethylcellulose be 4%.
6. a kind of preparation method of the special sustained and controlled release composite fertilizer of radix scutellariae as claimed in claim 5, which is characterized in that including following step
Suddenly：
Step 1：Coated urea is prepared, quinhydrones, dicyandiamide and sodium carboxymethylcellulose are mixed, are then coated on mixture
Sulfur coated urea surface is rolled using machinery and is granulated, and dry screening is spare；
Step 2：By coated urea, calcium superphosphate, potassium sulfate, boric acid and manganese sulfate according to weight ratio ranging from 0.5 ~ 5：5~25：
1~10：0.05~0.5：0.5 ~ 6 carries out dispensing, then uniformly mixes coated urea, calcium superphosphate, potassium sulfate, boric acid and manganese sulfate
Granule is made in conjunction.
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Application publication date: 20180918 |