CN105859387A - A soil-improving slow-release compound fertilizer used for paddy rice planting and a preparing method thereof - Google Patents
A soil-improving slow-release compound fertilizer used for paddy rice planting and a preparing method thereof Download PDFInfo
- Publication number
- CN105859387A CN105859387A CN201610194579.9A CN201610194579A CN105859387A CN 105859387 A CN105859387 A CN 105859387A CN 201610194579 A CN201610194579 A CN 201610194579A CN 105859387 A CN105859387 A CN 105859387A
- Authority
- CN
- China
- Prior art keywords
- parts
- slow
- fertilizer
- soil
- compound fertilizer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
-
- 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
-
- 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
- C05G3/80—Soil conditioners
-
- 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
-
- 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
- C05G5/10—Solid or semi-solid fertilisers, e.g. powders
- C05G5/12—Granules or flakes
-
- 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
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Soil Sciences (AREA)
- Fertilizers (AREA)
Abstract
A soil-improving slow-release compound fertilizer used for paddy rice planting is provided. The compound fertilizer comprises core fertilizer particles and a coating layer covering the core fertilizer particles. The compound fertilizer comprises a core fertilizer and the coating layer covering the core fertilizer. The two-layer structure makes a slow-release effect more obvious and a fertilizer effect longer. Topdressing is not needed in a planting process. The core fertilizer is rich in trace elements, thus improving nutrition value of paddy rice. Components of the compound fertilizer are friendly to soil. The compound fertilizer is low in production cost, facilitates market popularization and is good in economic benefit.
Description
Technical field
The present invention relates to a kind of Rice Cropping slow-release compound fertilizer improveing soil and preparation method thereof.
Background technology
Oryza sativa L. (formal name used at school: Oryza sativa) is the one of draft Oryza, be also in Oryza as grain
The longest main one, is also called Asian type cultivated rice, could also say that rice in simple terms.It it is 1 year
Raw, grass, unifacial leaf, property happiness is warm and humid, there are about 1 meter high time ripe, and leaf is elongated, there are about 50
To 100 centimeter length, wide about 2 to 2.5 centimetres.Spending of rice is the least, and when blooming, main spray can present arch
Shape, down all can hold little Hua in end of the branch between 30 to 50 centimetres, major part self-pollination also bears seeds, referred to as rice
Fringe.The size of general spike of rice is long at 5 to 12 millimeters, 2 to 3 mm of thickness.
There are about half people in the world with rice as staple food, particularly Asia, rice is main source of nutrition.
There is Rice Production different continents, but are most with Asia, sown area be the world 90%. in Asia,
India is the important product rice country being only second to China, and sown area ranks first in the world, and total output occupies second
Position, Japan per unit area yield the highest, be in the world rice high yield country one of.
China is one of main cradle of rice-cultivating, Shi Daozuo history ancient country, and it is big to be also that Oryza glutinosa produces
State.China or Oryza sativa L. science and technology power." Green revolution " of world's short stalk rice breeding comes from China, China
Hybrid rice the most well known.Oryza sativa L. is the staple food crop of China, the commodity that Ye Shi China is important
One of grain, the sown area of Oryza sativa L. and total output occupy the first place of cereal crops, and sown area is in Chan Dao state of the world
In occupy second, total output occupies first of the world.China's rice growing area is substantially stable 3000～3100
Ten thousand hectares, total output about 20,000 tons, yield per unit area 6300～6500 kg/ha.Sown area accounts for paddy
The 20.2% of the thing gross area, yield accounts for the 43.4% of total grain yield, owing to rice yield is stable, at China's grain
Food has very important status in producing.
China has become as China face as the first in the world populous nation, the problem how resolving food supply
The important topic faced.Along with the fast development of Rice Cropping technology in the last few years and the continuous of cultivated area are expanded
Greatly, Oryza sativa L. in national life in occupation of consequence all the more, the most also in solving China's food supply
Play irreplaceable effect.But from the point of view of the current situation of Oryza sativa L., China's Rice Cropping there is also
Some common problems, limit the development of Rice Cropping industry.
Accelerating along with China rural holding is reversed, emerge the rich and influential family that more and more tills the land, agricultural is just towards product
Industry direction is fast-developing.Go down town in a large number plus China peasant and work, cause that rural area person between twenty and fifty labour force's is tight
Lacking, cause human cost in scale agricultural production to increase, the most large crops need repeatedly to execute
Fertilizer, the most time-consuming, plant growth manuring late inconvenience, production cost increase, and overfertilization is also
Soil soil property can be made to deteriorate, the soil that soil property deteriorates, not only affect yield, also can reduce China and day by day reduce
Agro-farming land area so that grain drop in production, formed vicious cycle.
Therefore it is badly in need of fertilizer efficiency length Rice Cropping fertilizer soil soil property can improved at present, for this
Class fertilizer, the most domestic is primarily present following patent documentation:
Patent publication No.: CN105347916A, discloses the slow-release compound fertilizer of a kind of improvement soil that sterilizes,
Its raw material includes by weight: carbamide 20-25, ammonium dihydrogen phosphate 10-15, potassium phosphate 10-20, potassium sulfate 5-
10, sodium silicate 8-12, magnesium phosphate 4-6, calcium chloride 7-9, zinc ammonium phosphate 0.2-0.4, curpic carbonate 0.1-0.3, phosphorus
Acid ammonium manganese 0.1-0.2, potassium borate 0.4-0.6, iron sulfate 0.3-0.5, sodium molybdate 0.2-0.4, sodium alginate 20-
25, coated fertilizer 35-45, manioc waste 5-10, furfural dregs 5-8, chicken manure 10-20, carbonization rice husk 5-10, rotten
Grow acid 10-15, straw 10-15, plant ash 5-8, biological bacteria 0.2-0.5, thermopsine 4-6, mugwort powder 3-5.
The invention also discloses the preparation method of the slow-release compound fertilizer of above-mentioned sterilization improvement soil.But, this patent carries
The slow-release compound fertilizer of confession, its improvement soil effect be by the humic acid in thin-film material with become thoroughly decomposed after have
Machine fertilizer acts on realization jointly, and it is the most also dependent on the fertilizer become thoroughly decomposed, but in digest process, unavoidably can
Having bacteria breed, can affect its bactericidal effect on the contrary, and depend merely on humic acid, it improves soil capacity relatively
Weak.
Summary of the invention
For solving the problem of above-mentioned existence, it is an object of the invention to provide a kind of rice seed improveing soil
Planting and use slow-release compound fertilizer and preparation method thereof, described slow-release compound fertilizer includes that nuclear core is fertile and is coated on nuclear core fertilizer table
The coating layer in face, double-decker makes slow release effect become apparent from, and fertilizer efficiency is long, without chasing after in planting process
Rich in trace element in fertilizer, and nuclear core fertilizer, promoting rice nutrition and be worth, fertilizer component is friendly to soil, raw
Produce low cost, beneficially marketing, good in economic efficiency.
For reaching above-mentioned purpose, the technical scheme is that
A kind of Rice Cropping slow-release compound fertilizer improveing soil, described slow-release compound fertilizer includes fertile of nuclear core
Grain and be coated on the coating layer of this nuclear core fertilizer particle surface, described nuclear core fertilizer includes the composition of following weight portion:
Carbamide: 40～60 parts, ammonium dihydrogen phosphate: 20～30 parts, MAP: 10～20 parts, potassium chloride:
15～25 parts, zinc sulfate: 10～15 parts, humic acids: 1～10 part, attapulgite: 10～15 parts, EDTA
Chelated iron: 1～5 part, EDTA chelated zinc: 1～5 part, EDTA chelated copper: 1～5 part, humic acid urea
Ferrum: 1～5 part, humic acids magnesium: 1～5 part, urease inhibitor: 0.5～1 part, nitrification inhibitor: 0.5～1
Part；Described coating layer includes the composition of following weight portion: chitosan: 20～30 parts, polyvinyl alcohol: 5～10
Part, modified tapioca starch: 5～10 parts, dodecylbenzene sodium sulfonate: 1～5 part, micron hollow glass fibre
Element powder: 1～5 part, N, N '-methylene-bisacrylamide: 1～5 part, acrylamide: 1～5 part, diatom
Soil: 1～5 part, binding agent: 1～5 part, deionized water: 1～5 part, acetic acid: 0.1～0.5 part.
Further, described nuclear core fertilizer includes the composition of following weight portion: carbamide: 40～50 parts, biphosphate
Ammonium: 20～25 parts, MAP: 10～15 parts, potassium chloride: 15～20 parts, zinc sulfate: 13～15 parts,
Humic acids: 5～10 parts, attapulgite: 10～13 parts, EDTA chelated iron: 2～5 parts, EDTA chelates
Zinc: 3～5 parts, EDTA chelated copper: 1～3 part, humic acid urea ferrum: 4～5 parts, humic acids magnesium: 3～5
Part, urease inhibitor: 0.5～0.8 part, nitrification inhibitor: 0.7～1 part；Described coating layer includes following weight
The composition of amount part: chitosan: 20～25 parts, polyvinyl alcohol: 6～10 parts, modified tapioca starch: 5～8
Part, dodecylbenzene sodium sulfonate: 1～3 part, micron hollow glass fibre element powder: 2～5 parts, N, N '-methylene
Base bisacrylamide: 3～5 parts, acrylamide: 1～4 part, kieselguhr: 1～3 part, binding agent: 2～5
Part, deionized water: 1～4 part, acetic acid: 0.1～0.3 part.
Preferably, described nuclear core fertilizer includes the composition of following weight portion: carbamide: 50 parts, biphosphate
Ammonium: 25 parts, MAP: 13 parts, potassium chloride: 18 parts, zinc sulfate: 14 parts, humic acids: 5
Part, attapulgite: 12 parts, EDTA chelated iron: 3 parts, EDTA chelated zinc: 4 parts, EDTA chela
Conjunction copper: 2 parts, humic acid urea ferrum: 4 parts, humic acids magnesium: 4 parts, urease inhibitor: 0.7 part, nitre
Change inhibitor: 0.8 part；Described coating layer includes the composition of following weight portion: chitosan: 25 parts, poly-second
Enol: 8 parts, modified tapioca starch: 6 parts, dodecylbenzene sodium sulfonate: 2 parts, micron double glazing is fine
Dimension element powder: 4 parts, N, N '-methylene-bisacrylamide: 4 parts, acrylamide: 3 parts, kieselguhr: 2
Part, binding agent: 3 parts, deionized water: 2 parts, acetic acid: 0.2 part.
Separately, stating nitrification inhibitor is 3,4-dimethyl pyrazole phosphate, 2-chloro-6-(trichloromethyl) pyridine, 3,5-
Dimethyl pyrazole or dicyandiamide.
Separately having, described urease inhibitor is hydroquinone, N-NBPT, N-butyl thio-phosphamide
Or phosphoric triamide.
Again, the weight ratio between described coating layer and nuclear core fertilizer is 1:8～10.
Further, described binding agent is paraffin or Colophonium.
Meanwhile, the present invention also provides for the preparation side of a kind of Rice Cropping slow-release compound fertilizer improveing soil
Method, comprises the steps:
1) peplos solution is prepared
Described modified tapioca starch adds deionized water obtain gelatinizing in the stirred in water bath of 60～70 DEG C and form sediment
Powder, adds chitosan in deionized water, adds acetic acid, is warming up to 80～90 DEG C, with 100-200r/min's
Speed insulated and stirred 1～2h, obtains chitosan solution, and the speed with 1～3ml/min is by N, N '-methylene bisacrylamide
Amide, acrylamide, polyvinyl alcohol, kieselguhr, dodecylbenzene sodium sulfonate and binding agent drop to gained
In chitosan solution, obtain mixed liquor, mixed liquor dropped in gelatinized starch with the speed of 3～6ml/min,
Adding micron hollow glass fibre element powder, 10～15min add, and quickly stirring 10～20min is to uniformly, dry
Dry, pulverize, cross 150～200 mesh sieves and obtain peplos solution；
2) nuclear core is prepared fertile
Raw material carbamide is melted through high temperature 120～140 DEG C；By potassium chloride, nitrification inhibitor, urase suppression
After agent mixing, add suitable quantity of water, stir, obtain combination solution standby；By ammonium dihydrogen phosphate, phosphoric acid one
Ammonium, zinc sulfate, humic acids, attapulgite, EDTA chelated iron, EDTA chelated zinc, EDTA chelate
Copper, humic acid urea ferrum and the mixing of humic acids magnesium, stir, together add gained with gained combination solution
Mixing in carbamide after melt process, make pasty material, temperature controls at 100～120 DEG C, and shearing is made
Grain, is cooled to 45～65 DEG C, obtains nuclear core fertilizer granule after heat exchange；
3) preparation can improve the Rice Cropping slow-release compound fertilizer of soil
With spray gun under the pressure of 6.5～10MPa by step 1) in the peplos solution atomization that obtains spraying to step
Rapid 2) gained nuclear core fertilizer granule, forms coating layer, sends into the roller pelletizer with hot-air blower, setting speed
350～360r/min, temperature 70～80 DEG C, pelletize 40～50min, at 60～90 DEG C, it is dried 2～3h, is cooled to
Room temperature preservation is stand-by, obtains the described Rice Cropping slow-release compound fertilizer that can improve soil.
The beneficial effects of the present invention is:
Described slow-release compound fertilizer includes that nuclear core is fertile and is coated on the coating layer on nuclear core fertilizer surface, and double-decker makes
Slow release effect becomes apparent from, and is controlled the hydrolysis of carbamide by urease inhibitor, limits and forms ammonium
Speed, control ammonium, the concentration of nitrogen in soil, prevent from causing damage because can send out, adjusted by nitrification inhibitor
In joint soil, the activity of nitrite bacteria is to hinder the generation of nitrification and denitrification, makes the nitrogen in soil with ammonia
Form is present in soil, and fertilizer efficiency is long, and fertilizer effect duration can run through Rice Cropping all the time, it is not necessary to additionally chases after
Fertilizer, fertilizer efficiency, up to 4～5 months, meets Rice Cropping needs, and nuclear core is fertile rich in necessary to paddy growth
Nitrogen, phosphorus, potassium etc. must element, and nuclear core fertilizer in rich in EDTA chelated iron, EDTA chelated zinc,
EDTA chelated copper, humic acid urea ferrum, the nutrition such as humic acids magnesium unit, chelating form is more conducive to absorb, can
Effectively promote microelement contents of soil, improve soil and rice nutrition is worth, and, humic acid urea
Ferrum, humic acids magnesium and humic acids with the use of, more can be efficiently modified soil soil property, coating layer use micro-
Rice hollow glass fibre element powder, if forming dry passage on coating layer, progressively release nuclear core fertilizer granule, enters one
Step increases fertilizer efficiency period, and plant recovery of nutrient height has slow-release compound fertilizer 10～15%, and fertilizer component is to soil friend
Good, production cost is low, beneficially marketing, good in economic efficiency.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.Following example will assist in this area
Technical staff be further appreciated by the present invention, but limit the present invention the most in any form.It should be pointed out that,
To those skilled in the art, without departing from the inventive concept of the premise, it is also possible to if making
Dry deformation and improvement.These broadly fall into protection scope of the present invention.
A kind of Rice Cropping slow-release compound fertilizer improveing soil of the present invention, described slow-release compound fertilizer
Including nuclear core fertilizer granule and the coating layer that is coated on this nuclear core fertilizer particle surface, described nuclear core fertilizer includes following weight
The composition of amount part: carbamide: 40～60 parts, ammonium dihydrogen phosphate: 20～30 parts, MAP: 10～20 parts,
Potassium chloride: 15～25 parts, zinc sulfate: 10～15 parts, humic acids: 1～10 part, attapulgite: 10～15
Part, EDTA chelated iron: 1～5 part, EDTA chelated zinc: 1～5 part, EDTA chelated copper: 1～5 part,
Humic acid urea ferrum: 1～5 part, humic acids magnesium: 1～5 part, urease inhibitor: 0.5～1 part, nitrification suppresses
Agent: 0.5～1 part；Described coating layer includes the composition of following weight portion: chitosan: 20～30 parts, polyethylene
Alcohol: 5～10 parts, modified tapioca starch: 5～10 parts, dodecylbenzene sodium sulfonate: 1～5 part, micron hollow
Glass fibre element powder: 1～5 part, N, N '-methylene-bisacrylamide: 1～5 part, acrylamide: 1～5
Part, kieselguhr: 1～5 part, binding agent: 1～5 part, deionized water: 1～5 part, acetic acid: 0.1～0.5
Part.
Further, described nuclear core fertilizer includes the composition of following weight portion: carbamide: 40～50 parts, biphosphate
Ammonium: 20～25 parts, MAP: 10～15 parts, potassium chloride: 15～20 parts, zinc sulfate: 13～15 parts,
Humic acids: 5～10 parts, attapulgite: 10～13 parts, EDTA chelated iron: 2～5 parts, EDTA chelates
Zinc: 3～5 parts, EDTA chelated copper: 1～3 part, humic acid urea ferrum: 4～5 parts, humic acids magnesium: 3～5
Part, urease inhibitor: 0.5～0.8 part, nitrification inhibitor: 0.7～1 part；Described coating layer includes following weight
The composition of amount part: chitosan: 20～25 parts, polyvinyl alcohol: 6～10 parts, modified tapioca starch: 5～8
Part, dodecylbenzene sodium sulfonate: 1～3 part, micron hollow glass fibre element powder: 2～5 parts, N, N '-methylene
Base bisacrylamide: 3～5 parts, acrylamide: 1～4 part, kieselguhr: 1～3 part, binding agent: 2～5
Part, deionized water: 1～4 part, acetic acid: 0.1～0.3 part.
Preferably, described nuclear core fertilizer includes the composition of following weight portion: carbamide: 50 parts, biphosphate
Ammonium: 25 parts, MAP: 13 parts, potassium chloride: 18 parts, zinc sulfate: 14 parts, humic acids: 5
Part, attapulgite: 12 parts, EDTA chelated iron: 3 parts, EDTA chelated zinc: 4 parts, EDTA chela
Conjunction copper: 2 parts, humic acid urea ferrum: 4 parts, humic acids magnesium: 4 parts, urease inhibitor: 0.7 part, nitre
Change inhibitor: 0.8 part；Described coating layer includes the composition of following weight portion: chitosan: 25 parts, poly-second
Enol: 8 parts, modified tapioca starch: 6 parts, dodecylbenzene sodium sulfonate: 2 parts, micron double glazing is fine
Dimension element powder: 4 parts, N, N '-methylene-bisacrylamide: 4 parts, acrylamide: 3 parts, kieselguhr: 2
Part, binding agent: 3 parts, deionized water: 2 parts, acetic acid: 0.2 part.
Separately, stating nitrification inhibitor is 3,4-dimethyl pyrazole phosphate, 2-chloro-6-(trichloromethyl) pyridine, 3,5-
Dimethyl pyrazole or dicyandiamide.
Separately having, described urease inhibitor is hydroquinone, N-NBPT, N-butyl thio-phosphamide
Or phosphoric triamide.
Again, the weight ratio between described coating layer and nuclear core fertilizer is 1:8～10.
Further, described binding agent is paraffin or Colophonium.
Meanwhile, the present invention also provides for the preparation side of a kind of Rice Cropping slow-release compound fertilizer improveing soil
Method, comprises the steps:
1) peplos solution is prepared
Described modified tapioca starch adds deionized water obtain gelatinizing in the stirred in water bath of 60～70 DEG C and form sediment
Powder, adds chitosan in deionized water, adds acetic acid, is warming up to 80～90 DEG C, with 100-200r/min's
Speed insulated and stirred 1～2h, obtains chitosan solution, and the speed with 1～3ml/min is by N, N '-methylene bisacrylamide
Amide, acrylamide, polyvinyl alcohol, kieselguhr, dodecylbenzene sodium sulfonate and binding agent drop to gained
In chitosan solution, obtain mixed liquor, mixed liquor dropped in gelatinized starch with the speed of 3～6ml/min,
Adding micron hollow glass fibre element powder, 10～15min add, and quickly stirring 10～20min is to uniformly, dry
Dry, pulverize, cross 150～200 mesh sieves and obtain peplos solution；
2) nuclear core is prepared fertile
Raw material carbamide is melted through high temperature 120～140 DEG C；By potassium chloride, nitrification inhibitor, urase suppression
After agent mixing, add suitable quantity of water, stir, obtain combination solution standby；By ammonium dihydrogen phosphate, phosphoric acid one
Ammonium, zinc sulfate, humic acids, attapulgite, EDTA chelated iron, EDTA chelated zinc, EDTA chelate
Copper, humic acid urea ferrum and the mixing of humic acids magnesium, stir, together add gained with gained combination solution
Mixing in carbamide after melt process, make pasty material, temperature controls at 100～120 DEG C, and shearing is made
Grain, is cooled to 45～65 DEG C, obtains nuclear core fertilizer granule after heat exchange；
3) preparation can improve the Rice Cropping slow-release compound fertilizer of soil
With spray gun under the pressure of 6.5～10MPa by step 1) in the peplos solution atomization that obtains spraying to step
Rapid 2) gained nuclear core fertilizer granule, forms coating layer, sends into the roller pelletizer with hot-air blower, setting speed
350～360r/min, temperature 70～80 DEG C, pelletize 40～50min, at 60～90 DEG C, it is dried 2～3h, is cooled to
Room temperature preservation is stand-by, obtains the described Rice Cropping slow-release compound fertilizer that can improve soil.
Wherein, a kind of Rice Cropping slow release improveing soil that table 1 is provided by various embodiments of the present invention
The ingredient lists that in compound fertilizer, nuclear core is fertile.The one that table 2 is provided by various embodiments of the present invention can improve soil
Rice Cropping slow-release compound fertilizer in the ingredient lists of coating layer.Table 3 is for using provided by the present invention one
Contrast before and after soil soil property key parameter after kind can improveing the Rice Cropping slow-release compound fertilizer of soil.Table 4 is
A kind of Rice Cropping slow-release compound fertilizer improveing soil provided by the present invention is Static Water N of 25 DEG C
Cumulative leaching rate list.
Table 1 (unit: weight portion)
Table 2 (unit: weight portion)
Table 3
Table 4
A kind of Rice Cropping slow-release compound fertilizer improveing soil provided by the present invention and preparation method thereof,
Described slow-release compound fertilizer includes that nuclear core is fertile and is coated on the coating layer on nuclear core fertilizer surface, and double-decker makes slow release
Effect becomes apparent from, and is controlled the hydrolysis of carbamide by urease inhibitor, limits the speed forming ammonium
Degree, controls ammonium, the concentration of nitrogen in soil, prevents from causing damage, by nitrification inhibitor regulation soil because can send out
In earth, the activity of nitrite bacteria is to hinder the generation of nitrification and denitrification, makes the nitrogen in soil with the form of ammonia
Being present in soil, fertilizer efficiency is long, and fertilizer effect duration can run through Rice Cropping all the time, it is not necessary to additionally topdresses, fertile
Effect, up to 4～5 months, meets Rice Cropping needs, nuclear core fertile rich in nitrogen necessary to paddy growth, phosphorus,
Potassium etc. must chelate rich in EDTA chelated iron, EDTA chelated zinc, EDTA in element, and nuclear core fertilizer
Copper, humic acid urea ferrum, the nutrition such as humic acids magnesium unit, chelating form is more conducive to absorb, can effectively promote soil
Earth micronutrient levels, improves soil and rice nutrition is worth, and, humic acid urea ferrum, humic acids magnesium
With humic acids with the use of, more can be efficiently modified soil soil property, coating layer use micron double glazing fine
Dimension element powder, if forming dry passage on coating layer, progressively release nuclear core fertilizer granule, increases fertilizer efficiency further
Phase, plant recovery of nutrient height has slow-release compound fertilizer 10～15%, and fertilizer component is friendly to soil, produces into
This is low, and beneficially marketing is good in economic efficiency.
It should be noted that above example is only in order to illustrate technical scheme and unrestricted.Although
With reference to preferred embodiment, the present invention is described in detail, it will be understood by those within the art that,
The technical scheme of invention can be modified or equivalent, without deviating from the model of technical solution of the present invention
Enclosing, it all should be contained in scope of the presently claimed invention.
Claims (8)
1. the Rice Cropping slow-release compound fertilizer that can improve soil, it is characterized in that, described slow-release compound fertilizer includes nuclear core fertilizer granule and is coated on the coating layer of this nuclear core fertilizer particle surface, described nuclear core fertilizer includes the composition of following weight portion: carbamide: 40 ~ 60 parts, ammonium dihydrogen phosphate: 20 ~ 30 parts, MAP: 10 ~ 20 parts, potassium chloride: 15 ~ 25 parts, zinc sulfate: 10 ~ 15 parts, humic acids: 1 ~ 10 part, attapulgite: 10 ~ 15 parts, EDTA chelated iron: 1 ~ 5 part, EDTA chelated zinc: 1 ~ 5 part, EDTA chelated copper: 1 ~ 5 part, humic acid urea ferrum: 1 ~ 5 part, humic acids magnesium: 1 ~ 5 part, urease inhibitor: 0.5 ~ 1 part, nitrification inhibitor: 0.5 ~ 1 part；Described coating layer includes the composition of following weight portion: chitosan: 20 ~ 30 parts, polyvinyl alcohol: 5 ~ 10 parts, modified tapioca starch: 5 ~ 10 parts, dodecylbenzene sodium sulfonate: 1 ~ 5 part, micron hollow glass fibre element powder: 1 ~ 5 part, N, N '-methylene-bisacrylamide: 1 ~ 5 part, acrylamide: 1 ~ 5 part, kieselguhr: 1 ~ 5 part, binding agent: 1 ~ 5 part, deionized water: 1 ~ 5 part, acetic acid: 0.1 ~ 0.5 part.
A kind of Rice Cropping slow-release compound fertilizer improveing soil the most according to claim 1, it is characterized in that, described nuclear core fertilizer includes the composition of following weight portion: carbamide: 40 ~ 50 parts, ammonium dihydrogen phosphate: 20 ~ 25 parts, MAP: 10 ~ 15 parts, potassium chloride: 15 ~ 20 parts, zinc sulfate: 13 ~ 15 parts, humic acids: 5 ~ 10 parts, attapulgite: 10 ~ 13 parts, EDTA chelated iron: 2 ~ 5 parts, EDTA chelated zinc: 3 ~ 5 parts, EDTA chelated copper: 1 ~ 3 part, humic acid urea ferrum: 4 ~ 5 parts, humic acids magnesium: 3 ~ 5 parts, urease inhibitor: 0.5 ~ 0.8 part, nitrification inhibitor: 0.7 ~ 1 part；Described coating layer includes the composition of following weight portion: chitosan: 20 ~ 25 parts, polyvinyl alcohol: 6 ~ 10 parts, modified tapioca starch: 5 ~ 8 parts, dodecylbenzene sodium sulfonate: 1 ~ 3 part, micron hollow glass fibre element powder: 2 ~ 5 parts, N, N '-methylene-bisacrylamide: 3 ~ 5 parts, acrylamide: 1 ~ 4 part, kieselguhr: 1 ~ 3 part, binding agent: 2 ~ 5 parts, deionized water: 1 ~ 4 part, acetic acid: 0.1 ~ 0.3 part.
A kind of Rice Cropping slow-release compound fertilizer improveing soil the most according to claim 1, it is characterized in that, described nuclear core fertilizer includes the composition of following weight portion: carbamide: 50 parts, ammonium dihydrogen phosphate: 25 parts, MAP: 13 parts, potassium chloride: 18 parts, zinc sulfate: 14 parts, humic acids: 5 parts, attapulgite: 12 parts, EDTA chelated iron: 3 parts, EDTA chelated zinc: 4 parts, EDTA chelated copper: 2 parts, humic acid urea ferrum: 4 parts, humic acids magnesium: 4 parts, urease inhibitor: 0.7 part, nitrification inhibitor: 0.8 part；Described coating layer includes the composition of following weight portion: chitosan: 25 parts, polyvinyl alcohol: 8 parts, modified tapioca starch: 6 parts, dodecylbenzene sodium sulfonate: 2 parts, micron hollow glass fibre element powder: 4 parts, N, N '-methylene-bisacrylamide: 4 parts, acrylamide: 3 parts, kieselguhr: 2 parts, binding agent: 3 parts, deionized water: 2 parts, acetic acid: 0.2 part.
A kind of Rice Cropping slow-release compound fertilizer improveing soil the most according to claim 1, it is characterised in that stating nitrification inhibitor is 3,4-dimethyl pyrazole phosphate, 2-chloro-6-(trichloromethyl) pyridine, 3，5-dimethylpyrazole or dicyandiamide.
A kind of Rice Cropping slow-release compound fertilizer improveing soil the most according to claim 1, it is characterised in that described urease inhibitor is hydroquinone, N-NBPT, N-butyl thio-phosphamide or phosphoric triamide.
A kind of Rice Cropping slow-release compound fertilizer improveing soil the most according to claim 1, it is characterised in that the weight ratio between described coating layer and nuclear core fertilizer is 1:8 ~ 10.
A kind of Rice Cropping slow-release compound fertilizer improveing soil the most according to claim 1, it is characterised in that described binding agent is paraffin or Colophonium.
8. the preparation method of the Rice Cropping slow-release compound fertilizer of the soil improved as according to any one of claim 1 ~ 7, it is characterised in that comprise the steps:
Prepare peplos solution
Described modified tapioca starch is added deionized water and obtains gelatinized starch in the stirred in water bath of 60 ~ 70 DEG C, chitosan is added in deionized water, add acetic acid, it is warming up to 80 ~ 90 DEG C, speed insulated and stirred 1 ~ 2h with 100-200r/min, obtain chitosan solution, with the speed of 1 ~ 3ml/min by N, N '-methylene-bisacrylamide, acrylamide, polyvinyl alcohol, kieselguhr, dodecylbenzene sodium sulfonate and binding agent drop in gained chitosan solution, obtain mixed liquor, mixed liquor is dropped in gelatinized starch with the speed of 3 ~ 6ml/min, add micron hollow glass fibre element powder, 10 ~ 15min adds, quickly stirring 10 ~ 20min is to uniformly, it is dried, pulverize, cross 150 ~ 200 mesh sieves and obtain peplos solution；
Preparation nuclear core is fertile
Raw material carbamide is melted through high temperature 120 ~ 140 DEG C；After potassium chloride, nitrification inhibitor, urease inhibitor mixing, add suitable quantity of water, stir, obtain combination solution standby；Ammonium dihydrogen phosphate, MAP, zinc sulfate, humic acids, attapulgite, EDTA chelated iron, EDTA chelated zinc, EDTA chelated copper, humic acid urea ferrum and humic acids magnesium are mixed, stir, together add in the carbamide after gained melt process with gained combination solution and mix, make pasty material, temperature controls at 100 ~ 120 DEG C, shear granulation, is cooled to 45 ~ 65 DEG C after heat exchange, obtain nuclear core fertilizer granule；
Preparation can improve the Rice Cropping slow-release compound fertilizer of soil
With spray gun under the pressure of 6.5 ~ 10MPa by step 1) in the peplos solution atomization that obtains and spray to step 2) gained nuclear core fertilizer granule; form coating layer; send into the roller pelletizer with hot-air blower; setting speed 350 ~ 360r/min; temperature 70 ~ 80 DEG C, pelletize 40 ~ 50min, at 60 ~ 90 DEG C, it is dried 2 ~ 3h; it is cooled to room temperature preservation stand-by, obtains the described Rice Cropping slow-release compound fertilizer that can improve soil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610194579.9A CN105859387A (en) | 2016-03-31 | 2016-03-31 | A soil-improving slow-release compound fertilizer used for paddy rice planting and a preparing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610194579.9A CN105859387A (en) | 2016-03-31 | 2016-03-31 | A soil-improving slow-release compound fertilizer used for paddy rice planting and a preparing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105859387A true CN105859387A (en) | 2016-08-17 |
Family
ID=56627585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610194579.9A Pending CN105859387A (en) | 2016-03-31 | 2016-03-31 | A soil-improving slow-release compound fertilizer used for paddy rice planting and a preparing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105859387A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106396982A (en) * | 2016-11-29 | 2017-02-15 | 袁家和 | Compound fertilizer having growth promotion and high slow-release properties and used for rice planting as well as preparation method of compound fertilizer |
| CN106588306A (en) * | 2016-12-03 | 2017-04-26 | 安徽爱能洁生物科技有限公司 | High-yield iodine-rich slow-release compound fertilizer for rice planting and preparation method of compound fertilizer |
| CN106588412A (en) * | 2016-12-03 | 2017-04-26 | 安徽爱能洁生物科技有限公司 | Zinc-rich high-yield slow release compound fertilizer for rice planting and preparation method of compound fertilizer |
| CN107935686A (en) * | 2017-11-26 | 2018-04-20 | 安徽省司尔特肥业股份有限公司 | A kind of Rice composite fertilizer preparation method for recovering soil aggregate structure |
| CN107935684A (en) * | 2017-11-23 | 2018-04-20 | 宿州市东方红肥业有限公司 | A kind of a great number of elements slow-release fertilizer and preparation method thereof |
| CN108658673A (en) * | 2018-06-27 | 2018-10-16 | 安徽瑞然生物药肥科技有限公司 | A kind of coated fertilizer and preparation method thereof for slow release fertilizer |
| CN110577444A (en) * | 2019-10-24 | 2019-12-17 | 广东石油化工学院 | Compound fertilizer capable of improving soil for rice planting and preparation method thereof |
| CN114621890A (en) * | 2021-03-24 | 2022-06-14 | 施可丰化工股份有限公司 | Compound microbial agent for adsorbing and removing heavy metal elements in soil and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1528717A (en) * | 2003-10-16 | 2004-09-15 | 华东理工大学 | Coating agent for slow release fertilizer |
| CN101050153A (en) * | 2007-05-14 | 2007-10-10 | 王学文 | Slow-release chelate complementary fertilizer of containing middle quantity and trace elements |
| CN101362662A (en) * | 2008-09-03 | 2009-02-11 | 阎宗彪 | Coating sustained-released disposable fertilizer |
-
2016
- 2016-03-31 CN CN201610194579.9A patent/CN105859387A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1528717A (en) * | 2003-10-16 | 2004-09-15 | 华东理工大学 | Coating agent for slow release fertilizer |
| CN101050153A (en) * | 2007-05-14 | 2007-10-10 | 王学文 | Slow-release chelate complementary fertilizer of containing middle quantity and trace elements |
| CN101362662A (en) * | 2008-09-03 | 2009-02-11 | 阎宗彪 | Coating sustained-released disposable fertilizer |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106396982A (en) * | 2016-11-29 | 2017-02-15 | 袁家和 | Compound fertilizer having growth promotion and high slow-release properties and used for rice planting as well as preparation method of compound fertilizer |
| CN106588306A (en) * | 2016-12-03 | 2017-04-26 | 安徽爱能洁生物科技有限公司 | High-yield iodine-rich slow-release compound fertilizer for rice planting and preparation method of compound fertilizer |
| CN106588412A (en) * | 2016-12-03 | 2017-04-26 | 安徽爱能洁生物科技有限公司 | Zinc-rich high-yield slow release compound fertilizer for rice planting and preparation method of compound fertilizer |
| CN107935684A (en) * | 2017-11-23 | 2018-04-20 | 宿州市东方红肥业有限公司 | A kind of a great number of elements slow-release fertilizer and preparation method thereof |
| CN107935686A (en) * | 2017-11-26 | 2018-04-20 | 安徽省司尔特肥业股份有限公司 | A kind of Rice composite fertilizer preparation method for recovering soil aggregate structure |
| CN108658673A (en) * | 2018-06-27 | 2018-10-16 | 安徽瑞然生物药肥科技有限公司 | A kind of coated fertilizer and preparation method thereof for slow release fertilizer |
| CN110577444A (en) * | 2019-10-24 | 2019-12-17 | 广东石油化工学院 | Compound fertilizer capable of improving soil for rice planting and preparation method thereof |
| CN114621890A (en) * | 2021-03-24 | 2022-06-14 | 施可丰化工股份有限公司 | Compound microbial agent for adsorbing and removing heavy metal elements in soil and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105859387A (en) | A soil-improving slow-release compound fertilizer used for paddy rice planting and a preparing method thereof | |
| CN103121878B (en) | Double membrane slow release fertilizer containing humic acid and preparation method thereof | |
| CN105859388A (en) | A slow-release compound fertilizer used for paddy rice planting and a preparing method thereof | |
| CN105859389A (en) | A selenium-rich slow-release organic fertilizer used for paddy rice planting and a preparing method thereof | |
| CN105777364A (en) | Long-actingselenium-enriched coated slow-release compound fertilizer for rice planting and preparation method thereof | |
| CN101255082B (en) | Organic-inorganic long-acting corn special-purpose compound fertilizer | |
| CN105815165A (en) | Method for planting selenium-enriched rice at high yield | |
| CN105777365A (en) | Disease-preventive selenium-rich organic compound fertilizer for grape planting and preparation method thereof | |
| CN102503676A (en) | Base fertilizer type eucalyptus ecological fertilizer | |
| CN102173944A (en) | Carbon-based controlled-release fertilizer special for potato and preparation method thereof | |
| CN105859486A (en) | A selenium-rich coated organic compound fertilizer used for strawberry planting and a preparing method thereof | |
| CN102826890B (en) | Efficient polymorphous fertilizer special for vegetables and preparation method thereof | |
| CN103804097A (en) | Fertilizer containing anti-plant virus fertilizer additive | |
| CN105777367A (en) | Long-acting environment-friendly coated slow release compound fertilizer used for planting oryza sativa and preparation method thereof | |
| CN105198619B (en) | A kind of fertilizer specially for peanut and preparation method thereof made between corn, peanut | |
| CN102363586B (en) | Chitosan and sulfur coated special controlled-release fertilizer for wheat and preparation method thereof | |
| CN102491856A (en) | Special slow release fertilizer for corn zinc power and preparation method thereof | |
| CN106380284A (en) | Ecological slow release fertilizer special for wheat and preparation method thereof | |
| CN106316705A (en) | Environment-friendly coated slow-release fertilizer for wheat | |
| CN106380286A (en) | Long-acting organic-inorganic compound fertilizer special for wheat | |
| CN101177367A (en) | Special controlled release fertilizer for rice and preparation method thereof | |
| CN101580444A (en) | Coated slow-release urea containing double inhibitors and preparation method thereof | |
| CN102503640B (en) | Special functional melt granulated humic acid fertilizer and production method thereof | |
| CN101792355B (en) | Synchronous slow-release fertilizer special for super hybrid rice and preparation method thereof | |
| CN105801320A (en) | Degradable environment-friendly coated slow release compound fertilizer for rice planting and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160817 |