CN106565306A - Slowly soluble controlled release water-fertilizer integrated nitro-compound fertilizer and preparation method thereof - Google Patents
Slowly soluble controlled release water-fertilizer integrated nitro-compound fertilizer and preparation method thereof Download PDFInfo
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- CN106565306A CN106565306A CN201610908743.8A CN201610908743A CN106565306A CN 106565306 A CN106565306 A CN 106565306A CN 201610908743 A CN201610908743 A CN 201610908743A CN 106565306 A CN106565306 A CN 106565306A
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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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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
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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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- Pest Control & Pesticides (AREA)
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Abstract
The invention provides a slowly soluble controlled release water-fertilizer integrated nitro-compound fertilizer and a preparation method thereof. The method includes: mixing a nitro fertilizer with a surface modifier evenly, then conducting micronization treatment in a micro machine to make fine powder to produce a series of excellent physical, chemical, surface and interface stability compared with ordinary powder, then preparing polyvinyl alcohol, an inorganic gel and water into a colloid, and wrapping the micronization modified nitro-compound fertilizer surface by spraying, and performing drying and crushing to obtain powder. The colloid wrapped dried powdery nitro-compound fertilizer disperse in the form of particles in water without dissolving, is suitable for integration of water and fertilizer, and has the characteristics of no pipe blocking and no sedimentation. The water-fertilizer integrated nitro-compound fertilizer provided by the invention solves the defects of easy dissolution and crop poisoning in high concentration nitro fertilizers, is suitable for integration of water and fertilizer, reduces fertilization times, and saves cost.
Description
Technical field
It is more particularly to a kind of slow molten the invention belongs to agricultural fertilizer technical field, and in particular to a kind of nitro-compound fertilizer
Nitro-compound fertilizer of controlled release and preparation method thereof.
Background technology
Compound fertilizer refers to the chemical fertilizer containing two or more nutrient, and compound fertilizer has nutrient content high, secondary
Composition is few and the advantages of good physical behavior, for balance fertilizing, improves utilization rate of fertilizer, and promoting the stable high yield of crop has ten
Divide important effect.
Nitro-compound fertilizer is that, with ammonium nitrate as nitrogen source, the compound fertilizer raw material such as addition phosphorus, potassium, N, P, K high concentration produced is answered
Expect in Hefei.Not only contain nitrate nitrogen in its product but also contain ammonium nitrogen.Due to the quick dissolving of nitro fertilizer and special once absorption work(
Can, enable plant quickly to absorb nitrogen.Therefore, if nitrate nitrogen content is too high in fertilizer, crops can be brought
Side effect is even poisoned.And the nitro fertilizer of excess can be lost in, and cause the loss of fertilizer.Particularly using nitro fertilizer as water-soluble
When fertile, apply fertilizer after being typically completely dissolved, if nitro too high levels, plant absorption excess nitrogen can be caused and be poisoned.
So its defect can only be overcome by repeatedly fertilising, generally control fertilizer efficiency is reached by the method for low content, repeatedly fertilising
Effect, be this also bring fertilising cost increase.How to prepare a kind of had good sustained release effect, fertilizer efficiency long, soil quality can be improved,
And the compound fertilizer little to environmental hazard becomes the current technical issues that need to address.
Chinese invention patent application number 201310431024.8 discloses a kind of manufacture method of sustained and controlled release chemical fertilizer, by original
Material mixing, soft material processed, coarse granule processed, drying, sieve fine grained, peplos processed, seven processes of sustained and controlled release chemical fertilizer processed, first complete chemical fertilizer
Preparation, then delay release-controlled film on the chemical fertilizer in coating, complete the manufacture of whole sustained and controlled release chemical fertilizer, the manufacture of this sustained and controlled release chemical fertilizer
In method, the organic double compound and inorganic composite of nitrogen is added in raw material blend step, the chemical fertilizer of non-peplos inherently has
The characteristics of for slowly discharging in a short time.However, the operation that the technical scheme is related to is relatively complicated, the operation such as granulation, peplos
Complete step by step, be unfavorable for improve production efficiency.
Chinese invention patent application number 201410254588.3 discloses a kind of modified polyvinylalcohol peplos long-acting slow-release and answers
Expect have to nutrient formation dual cladding using kieselguhr and modified polyvinylalcohol slow release coating agent in production technology in Hefei
Excellent lasting Controlled release ability, fertilizer efficiency more persistent high efficiency, however, the slow-release compound fertilizer of the technical scheme contain it is substantial amounts of
Water insoluble component, is not suitable as water-fertilizer integral and uses.
Chinese invention patent application number 201310276660.8 discloses a kind of compound fertilizer's controlled release coated agent, by film former,
Emulsifying agent, toughener, porogen and solvent Jing dissolving, mixed preparing forms, it is adaptable to ordinary granular compound fertilizer coating, make its into
For coated compound fertilizer, but the coating agent of the invention firmly, be not readily dissolved in water, disposably apply generally as base manure.
According to above-mentioned, by carrying out peplos on the surface of Common compound fertilizer fertilizer grain, compound fertilizer can be avoided direct with soil
Contact, moisture content enters into fertile intragranular portion, fertilizer nutrient slow mechanism dissolved in the presence of hydrone by the fenestra road of peplos, then leads to
The hole for crossing peplos enters into soil.Because the degradability of peplos is poor, repeatedly coating agent will be caused after fertilising in soil
Enrichment, changes the microecological environment of soil, and chronic administration also can bring the effect of destruction to soil.Additionally, being wrapped up by peplos
During fertile grain, easily there is small crack in the peplos of particle surface, can affect the slow release effect of fertilizer, generally require during production many
Component is coated, and such as wraps up one layer of macromolecule resin, therefore production cost is higher.
The content of the invention
Complicated, relatively costly, the degraded yet suffered from using polymer overmold film for current slow-release or control-release fertilizer production process
The defects such as difficulty, destruction soil micro-ecosystem balance, meanwhile, to fill up the blank of slow control release type Water soluble fertilizer technical field at present, this
Invention proposes that one kind prepares fertile grain, and the technology wrapped by colloid using miniaturization treatment technology, it is achieved thereby that delaying molten control
Prepared by the continuous, stable and efficient of nitro-compound fertilizer for releasing water-fertilizer integral, further promoted the liquid manure of nitro-compound fertilizer
Integration.
The present invention is employed the following technical solutions：
Nitro fertilizer is mixed homogeneously with surface modifier, then miniaturization is processed in fine machine, as coarse powder is changed into fine powder
Skin effect, small-size effect etc. so that the relatively conventional powder body of fine powder body phase produces a series of excellent physics, chemistry, surface
And interface stability.Then polyvinyl alcohol, inorganic gel and water are configured to into colloid, spraying wraps multiple in fine modified nitro
Hefei surface, is dried, crushes powdering.
Concrete grammar is as follows：
A kind of preparation method of the nitro-compound fertilizer for delaying molten controlled release water-fertilizer integral, it is characterised in that using miniaturization treatment technology
Prepare fertile grain, and the technology wrapped by colloid, it is achieved thereby that delay the nitro-compound fertilizer of molten controlled release water-fertilizer integral it is continuous,
Stable and efficient preparation, concrete grammar is as follows：
（1）With in nitric acid phosphorus ammonium, ammonium nitrate, ammonium phosphate, monoammonium phosphate, ammonium dihydrogen phosphate, ammonium sulfate, potassium chloride, potassium sulfate
Nitrogen, phosphorus as nitro-compound fertilizer, potassium resource, using surface modifier as fertiliser granulates stabilizer, protect in anti-knock agent, noble gases
By nitrogen, phosphorus, potassium resource miniaturization self assembly under shield, and surface modifier is set to be coated on fertiliser granulates surface during miniaturization,
Nitro-compound fertilizer microgranule is formed, wherein described surface modifier is the one kind in stearic acid, monoglyceride.
（2）Colloid is configured to after polyvinyl alcohol and organobentonite, kieselguhr, white carbon, humic acidss are added water；
（3）Blend step in certain proportion（1）、（2）Nitro-compound fertilizer microgranule, the colloid for being obtained, each leads into spraying machine,
Colloid is quickly coated on nitro-compound fertilizer microparticle surfaces and is dried by head-on collision of spraying, obtain delaying molten controlled release water-fertilizer integral
Nitro-compound fertilizer.
Preferably, the parts by weight of described each component are as follows：
Nitric acid phosphorus ammonium 10-60 parts, ammonium nitrate 10-80 parts, ammonium phosphate monoammonium phosphate 0-20 parts, in potassium chloride or potassium sulfate extremely
A kind of few 5-20 parts, knock-sedative dope 3-8 parts, at least one 12-35 parts in stearic acid, single glycerol.
Preferably, the parts by weight and characteristic of the colloid each component are as follows：
Polyvinyl alcohol 25-80 parts, organobentonite 5-34 parts, kieselguhr 0-18 parts, white carbon 0-20 parts, humic acidss 0-18 parts,
Water 200-300 parts.
Preferably, the nitro-compound fertilizer microgranule and the weight ratio of colloid are 2.5-5:1.
Preferably, step（3）The spraying machine is placed in spray tower, and it is 100-120 DEG C that spray tower arranges ambient temperature, glue
Body is quickly coated on nitro-compound fertilizer microparticle surfaces and is dried, and is collected in bottom of towe with gravity.By nitro-compound fertilizer microgranule and colloid
Solution is quickly coated, and granule is coated by colloid, makes fertilizer be changed into micelle, and stable suspension system can be formed in water, meets water
The requirement of fertile integration.
A kind of nitro-compound fertilizer for delaying molten controlled release water-fertilizer integral, it is characterised in that by the preparation of above-mentioned preparation method method
.
In test, it has been found that can be to the size of compound fertilizer's microgranule and steady by adjusting the addition of surface modifier
Surely regulated and controled；When the amount of surface modifier is in 12-35 parts, it is possible to obtain size, pattern are more uniform and stable to be combined
Fertile granule, will not quickly dissolve in water.Less than this concentration, fertilizer can not effectively reunite for granule in fluffy, and high
When this concentration, particle size homogeneity is poor.
A kind of nitro-compound fertilizer for delaying molten controlled release water-fertilizer integral that the present invention is provided, compared with prior art, its protrusion
The characteristics of and excellent effect be：
（1）The slow molten controlled release water-fertilizer integral nitro-compound fertilizer of the present invention has excellent water dispersible, can meet various liquid manure
The enforcement of integration operation, while having slow-releasing.
（2）The present invention delays molten controlled release method by two-stage, and first, surface modifier, can be with the interface of fertile grain and colloid layer
Delay the dissolving of nitro fertilizer, reach the purpose of controlled release, secondly, gel component makes compound fertilizer in water, soil with fine particle
Form is disperseed and not dissolve, and fertilizer efficiency can slowly discharge and not be lost in, and fertilising process can implement water-fertilizer integral and not plugging, sink
Drop；
（3）The nitro-compound fertilizer of the technical program efficiently solve that high concentration nitro fertilizer is soluble, crops easily absorb in a large number and
The defect of poisoning, and it is suitable for the use of water-fertilizer integral, fertilizer application frequency is reduced, reduce management cost；
（4）What the technical program was adopted is environmentally friendly raw material, it is to avoid the pollution of environment.
Specific embodiment
Below by way of specific embodiment, the present invention is described in further detail, but this should not be interpreted as into the present invention
Scope be only limitted to Examples below.In the case of without departing from said method thought of the present invention, according to ordinary skill
Various replacements or change that knowledge and customary means are made, should be included in the scope of the present invention.
Embodiment 1
（1）45 parts of nitric acid phosphorus ammonium, 15 parts of ammonium nitrate, 10 parts of potassium chloride, 5 parts of potassium sulfate, knock-sedative dope 5 are weighed by weight
Part, 10 parts of stearic acid, 8 parts of single glycerol, by nitrogen, phosphorus, potassium resource miniaturization self assembly under anti-knock agent, inert gas shielding, and
Make surface modifier be coated on fertiliser granulates surface during miniaturization, form nitro-compound fertilizer microgranule；
（2）50 parts of the polyvinyl alcohol in terms of parts by weight is taken, 15 parts of organobentonite, 10 parts of kieselguhr, 15 parts of white carbon, corruption is planted
10 parts of acid, is configured to viscosity and is about 1.14*10 after mix homogeneously, plus 200 parts of water-3m2The colloid solution of/s；
（3）By 4 weight portion compound fertilizer microgranules, the colloid solution of 1 weight portion, spraying machine is each led into, spraying machine is placed in spray tower
Interior, it is 100-120 DEG C that spray tower arranges ambient temperature, and colloid is quickly coated on nitro-compound fertilizer microparticle surfaces and is dried, with weight
Power is collected in bottom of towe.Nitro-compound fertilizer microgranule and colloid solution are quickly coated, granule is coated by colloid, make fertilizer be changed into glue
Grain, can form stable suspension system in water, meet the requirement of water-fertilizer integral.
A kind of nitro-compound fertilizer for delaying molten controlled release water-fertilizer integral of the present invention is carried out with commercially available water soluble nitro compound fertilizer
Test comparison, test result such as following table：
By test result, the nitro-compound fertilizer for delaying molten controlled release water-fertilizer integral is satisfied by uniformly dividing in water with commercially available Water soluble fertilizer
Dissipate, fit entirely into the drip irrigation and spray irrigation of water-fertilizer integral, punching and apply and use.But the present invention delays the nitro of molten controlled release water-fertilizer integral
Compound fertilizer's nutrients release persistent period is longer, can not only reduce the fertilizer application frequency of Water soluble fertilizer, and has reached increasing by slow release
Effect, improves the utilization rate of fertilizer nutrient.
Embodiment 2
（1）35 parts of nitric acid phosphorus ammonium, 35 parts of ammonium nitrate, 5 parts of potassium chloride, 5 parts of potassium sulfate, knock-sedative dope 5 are weighed by weight
Part, 6 parts of stearic acid, 8 parts of single glycerol, by nitrogen, phosphorus, potassium resource miniaturization self assembly under anti-knock agent, inert gas shielding, and micro-
Make surface modifier be coated on fertiliser granulates surface in thinning process, form nitro-compound fertilizer microgranule；
（2）55 parts of the polyvinyl alcohol in terms of parts by weight is taken, 15 parts of organobentonite, 8 parts of kieselguhr, 12 parts of white carbon, corruption is planted
15 parts of acid, is configured to viscosity and is about 1.16*10 after mix homogeneously, plus 250 parts of water-3m2The colloid solution of/s；
（3）By 3 weight portion compound fertilizer microgranules, the colloid solution of 1 weight portion, spraying machine is each led into, spraying machine is placed in spray tower
Interior, it is 100-120 DEG C that spray tower arranges ambient temperature, and colloid is quickly coated on nitro-compound fertilizer microparticle surfaces and is dried, with weight
Power is collected in bottom of towe.Nitro-compound fertilizer microgranule and colloid solution are quickly coated, granule is coated by colloid, make fertilizer be changed into glue
Grain, can form stable suspension system in water, meet the requirement of water-fertilizer integral.
Milpa using the present embodiment before pollination period is implemented, and two pieces of areas is chosen respectively and is 3 mu experimental field, point
Test group and matched group are not labeled as, test group applies the present embodiment compound fertilizer, and matched group applies conventional compound fertilizer, all fertilizer
As base manure applied once, the mu amount of applying is 25Kg, and the later stage no longer topdresses, and two pieces of corn varieties experimental field, daily managements are equal
It is identical, to treat the harvest season, test group Semen Maydiss per mu yield improves 16.6% compared with matched group, and test group corn plants stem is sturdy, Corn Seeds
Many are satisfied, and pest and disease damage incidence rate is low compared with matched group.
Embodiment 3
（1）20 parts of nitric acid phosphorus ammonium, 40 parts of ammonium nitrate, 5.8 parts of potassium chloride, 8 parts of potassium sulfate, knock-sedative dope are weighed by weight
5 parts, 10 parts of stearic acid, 10 parts of single glycerol, by nitrogen, phosphorus, potassium resource miniaturization self assembly under anti-knock agent, inert gas shielding, and
Make surface modifier be coated on fertiliser granulates surface during miniaturization, form nitro-compound fertilizer microgranule；
（2）25 parts of the polyvinyl alcohol in terms of parts by weight is taken, 20 parts of organobentonite, 15 parts of kieselguhr, 25 parts of white carbon, corruption is planted
15 parts of acid, is configured to viscosity and is about 1.13*10 after mix homogeneously, plus 200 parts of water-3m2The colloid solution of/s；
（3）The colloid solution of 4.5 weight portion compound fertilizer microgranules, 1 weight portion is each led into into spraying machine, spraying machine is placed in spray tower
Interior, it is 100-120 DEG C that spray tower arranges ambient temperature, and colloid is quickly coated on nitro-compound fertilizer microparticle surfaces and is dried, with weight
Power is collected in bottom of towe.Nitro-compound fertilizer microgranule and colloid solution are quickly coated, granule is coated by colloid, make fertilizer be changed into glue
Grain, can form stable suspension system in water, meet the requirement of water-fertilizer integral.
Embodiment 4
（1）10 parts of nitric acid phosphorus ammonium, 65 parts of ammonium nitrate, 4 parts of potassium chloride, 2 parts of potassium sulfate, knock-sedative dope 5 are weighed by weight
Part, 8 parts of stearic acid, 4 parts of single glycerol, by nitrogen, phosphorus, potassium resource miniaturization self assembly under anti-knock agent, inert gas shielding, and micro-
Make surface modifier be coated on fertiliser granulates surface in thinning process, form nitro-compound fertilizer microgranule；
（2）Take 70 parts of the polyvinyl alcohol in terms of parts by weight, 10 parts of organobentonite, 5 parts of kieselguhr, 5 parts of white carbon, humic acidss
10 parts, it is configured to viscosity after mix homogeneously, plus 300 parts of water and is about 1.15*10-3m2The colloid solution of/s；
（3）By 5 weight portion compound fertilizer microgranules, the colloid solution of 1 weight portion, spraying machine is each led into, spraying machine is placed in spray tower
Interior, it is 100-120 DEG C that spray tower arranges ambient temperature, and colloid is quickly coated on nitro-compound fertilizer microparticle surfaces and is dried, with weight
Power is collected in bottom of towe.Nitro-compound fertilizer microgranule and colloid solution are quickly coated, granule is coated by colloid, make fertilizer be changed into glue
Grain, can form stable suspension system in water, meet the requirement of water-fertilizer integral.
Embodiment 5
（1）55 parts of nitric acid phosphorus ammonium, 10 parts of ammonium nitrate, 6 parts of potassium chloride, 4 parts of potassium sulfate, knock-sedative dope 5 are weighed by weight
Part, 8 parts of stearic acid, 10 parts of single glycerol, by nitrogen, phosphorus, potassium resource miniaturization self assembly under anti-knock agent, inert gas shielding, and
Make surface modifier be coated on fertiliser granulates surface during miniaturization, form nitro-compound fertilizer microgranule；
（2）Take 75 parts of the polyvinyl alcohol in terms of parts by weight, 5 parts of organobentonite, 2 parts of kieselguhr, 4 parts of white carbon, humic acidss
14 parts, it is configured to viscosity after mix homogeneously, plus 280 parts of water and is about 1.20*10-3m2The colloid solution of/s；
（3）By 2.5 weight portion compound fertilizer microgranules, the colloid solution of 1 weight portion, spraying machine is each led into, spraying machine is placed in spraying
In tower, it is 100-120 DEG C that spray tower arranges ambient temperature, and colloid is quickly coated on nitro-compound fertilizer microparticle surfaces and is dried, with
Gravity is collected in bottom of towe.Nitro-compound fertilizer microgranule and colloid solution are quickly coated, granule is coated by colloid, make fertilizer be changed into glue
Grain, can form stable suspension system in water, meet the requirement of water-fertilizer integral.
Claims (6)
1. it is a kind of delay molten controlled release water-fertilizer integral nitro-compound fertilizer preparation method, it is characterised in that using miniaturization process skill
Art prepares fertile grain, and the technology wrapped by colloid, it is achieved thereby that delaying the company of the nitro-compound fertilizer of molten controlled release water-fertilizer integral
Continuous, stable and efficient preparation, concrete grammar is as follows：
（1）With in nitric acid phosphorus ammonium, ammonium nitrate, ammonium phosphate, monoammonium phosphate, ammonium dihydrogen phosphate, ammonium sulfate, potassium chloride, potassium sulfate
Nitrogen, phosphorus as nitro-compound fertilizer, potassium resource, using surface modifier as fertiliser granulates stabilizer, protect in anti-knock agent, noble gases
By nitrogen, phosphorus, potassium resource miniaturization self assembly under shield, and surface modifier is set to be coated on fertiliser granulates surface during miniaturization,
Nitro-compound fertilizer microgranule is formed, wherein described surface modifier is the one kind in stearic acid, monoglyceride；
（2）Colloid is configured to after polyvinyl alcohol and organobentonite, kieselguhr, white carbon, humic acidss are added water；
（3）Blend step in certain proportion（1）、（2）Nitro-compound fertilizer microgranule, the colloid for being obtained, each leads into spraying machine,
Colloid is quickly coated on nitro-compound fertilizer microparticle surfaces and is dried by head-on collision of spraying, obtain delaying molten controlled release water-fertilizer integral
Nitro-compound fertilizer.
2. a kind of preparation method of the nitro-compound fertilizer for delaying molten controlled release water-fertilizer integral according to claim 1, its feature exists
In：The parts by weight of described each component are as follows：
Nitric acid phosphorus ammonium 10-60 parts, ammonium nitrate 10-80 parts, ammonium phosphate monoammonium phosphate 0-20 parts, in potassium chloride or potassium sulfate extremely
A kind of few 5-20 parts, knock-sedative dope 3-8 parts, at least one 12-35 parts in stearic acid, single glycerol.
3. a kind of preparation method of the nitro-compound fertilizer for delaying molten controlled release water-fertilizer integral according to claim 1, its feature exists
In：The parts by weight and characteristic of the colloid each component are as follows：
Polyvinyl alcohol 25-80 parts, organobentonite 5-34 parts, kieselguhr 0-18 parts, white carbon 0-20 parts, humic acidss 0-18 parts,
Water 200-300 parts.
4. a kind of preparation method of the nitro-compound fertilizer for delaying molten controlled release water-fertilizer integral according to claim 1, its feature exists
In：The nitro-compound fertilizer microgranule is 2.5-5 with the weight ratio of colloid:1.
5. a kind of preparation method of the nitro-compound fertilizer for delaying molten controlled release water-fertilizer integral according to claim 1, its feature exists
In：Step（3）The spraying machine is placed in spray tower, and it is 100-120 DEG C that spray tower arranges ambient temperature, and colloid is quickly coated on
Nitro-compound fertilizer microparticle surfaces are simultaneously dried, and are collected in bottom of towe with gravity.
6. it is a kind of delay molten controlled release water-fertilizer integral nitro-compound fertilizer, it is characterised in that：By described in any one of claim 1-5
Preparation method is prepared.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610908743.8A CN106565306A (en) | 2016-10-19 | 2016-10-19 | Slowly soluble controlled release water-fertilizer integrated nitro-compound fertilizer and preparation method thereof |
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| CN201610908743.8A CN106565306A (en) | 2016-10-19 | 2016-10-19 | Slowly soluble controlled release water-fertilizer integrated nitro-compound fertilizer and preparation method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103910586A (en) * | 2014-04-28 | 2014-07-09 | 成都新柯力化工科技有限公司 | Slow release fertilizer applicable to water-fertilizer integration and preparation method thereof |
| CN103910577A (en) * | 2014-04-04 | 2014-07-09 | 成都新柯力化工科技有限公司 | Slowly-soluble fertilizer and preparation method thereof |
| CN103922854A (en) * | 2014-04-30 | 2014-07-16 | 成都新柯力化工科技有限公司 | Water-retaining slow-soluble fertilizer and preparation method thereof |
| CN103936510A (en) * | 2014-04-18 | 2014-07-23 | 成都新柯力化工科技有限公司 | Slow release fertilizer suitable for integration of water and fertilizer and preparation method of fertilizer |
| CN104030839A (en) * | 2014-07-01 | 2014-09-10 | 成都新柯力化工科技有限公司 | Nanocapsule slow release fertilizer and preparation method thereof |
| CN105001003A (en) * | 2015-08-06 | 2015-10-28 | 陆月霞 | Nitro-compound fertilizer |
-
2016
- 2016-10-19 CN CN201610908743.8A patent/CN106565306A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103910577A (en) * | 2014-04-04 | 2014-07-09 | 成都新柯力化工科技有限公司 | Slowly-soluble fertilizer and preparation method thereof |
| CN103936510A (en) * | 2014-04-18 | 2014-07-23 | 成都新柯力化工科技有限公司 | Slow release fertilizer suitable for integration of water and fertilizer and preparation method of fertilizer |
| CN103910586A (en) * | 2014-04-28 | 2014-07-09 | 成都新柯力化工科技有限公司 | Slow release fertilizer applicable to water-fertilizer integration and preparation method thereof |
| CN103922854A (en) * | 2014-04-30 | 2014-07-16 | 成都新柯力化工科技有限公司 | Water-retaining slow-soluble fertilizer and preparation method thereof |
| CN104030839A (en) * | 2014-07-01 | 2014-09-10 | 成都新柯力化工科技有限公司 | Nanocapsule slow release fertilizer and preparation method thereof |
| CN105001003A (en) * | 2015-08-06 | 2015-10-28 | 陆月霞 | Nitro-compound fertilizer |
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