CN106631467A - Thio-sulfide-containing sustained release fertilizer special for peanuts, and preparation method thereof - Google Patents
Thio-sulfide-containing sustained release fertilizer special for peanuts, and preparation method thereof Download PDFInfo
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- CN106631467A CN106631467A CN201611219952.8A CN201611219952A CN106631467A CN 106631467 A CN106631467 A CN 106631467A CN 201611219952 A CN201611219952 A CN 201611219952A CN 106631467 A CN106631467 A CN 106631467A
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- release fertilizer
- sulfide
- thio
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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
-
- 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
- C05G5/00—Fertilisers characterised by their form
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
- C05G5/37—Layered or coated, e.g. dust-preventing coatings layered or coated with a polymer
Abstract
The invention discloses a thio-sulfide-containing sustained release fertilizer special for peanuts, and a preparation method thereof. The thio-sulfide-containing sustained release fertilizer special for peanuts is prepared from the following raw materials in parts by weight: 14 to 20 parts of potassium nitrate, 10 to 16 parts of ammonium sulfate, 42 to 62 parts of urea, 4 to 10 parts of calcium superphosphate, 18 to 24 parts of monopotassium phosphate, 6 to 12 parts of additives, 10 to 16 parts of thio-sulfide, 20 to 26 parts of modified montmorillonite, 52 to 58 parts of polyactic acid and 50 to 56 parts of polyvinyl alcohol. The thio-sulfide-containing sustained release fertilizer special for the peanuts contains various nutritional ingredients and can meet the requirements of the peanuts on various nutrients; the raw materials such as the thio-sulfide, a plant growth regulator and herbicide are added into the raw materials of the sustained release fertilizer, so when being used in the cultivation process of the peanuts, the sustained release fertilizer can not only effectively solve the problems of soil heavy metal pollution and toxic and harmful substance residues, but also improve the planting environment, inhibit growth of weed and improve the growth situation of the peanuts.
Description
Technical field
The present invention relates to fertilizer preparing technical field, and in particular to a kind of peanut Special slow release fertilizer containing thio sulfide and
Its preparation method.
Background technology
Peanut is China's abundance, a kind of edible extensive nut, also known as " peanut ", " mud beans " etc..Category Rosales,
Pulse family annual herb plant, stem is upright or crawls, and long 30-80 centimetre, ala is separated with fossil fragments, and pod is long 2-5 centimetre, wide
1-1.3 centimetre, expansion, pod is thick, and the flowering fruit bearing stage 6-8 months, peanut fruit contains protein, fat, carbohydrate, vitamin A, vitamin
B6, vitamin E, vitamin K, and nutrient content, the amino acid containing 8 kinds of needed by human body and the insatiable hunger such as mineral calcium, phosphorus, iron
And aliphatic acid, containing materials such as lecithin, choline, carrotene, crude fibres.
Because peanut has high edibility and nutritive value, therefore the cultivation technique of peanut just occurs in succession, flower
The control of fertilizer is particularly critical in raw cultivation, because peanut cultivation is in soil, after fertilizer is applied for a period of time, except
Sub-fraction can absorb outer by peanut, other then can be lost in, and cause substantial amounts of waste, but also can cause the pollution of soil,
With going deep into for Research of Environmental Sciences, people gradually recognize contamination hazard of the heavy metal to soil be it is extremely serious, in order to
Reduce this loss, must be requested that the release rule of the nutrient of fertilizer is coordinated with the Nutrient Absorption of peanut, therefore Controlled Release Fertilizer grinds
System becomes more and more.With going deep into for Research of Environmental Sciences, people gradually recognize heavy metal-polluted soil heavy metal in soil
Existing forms can be divided into:Exchangeable species;Carbonate combine state;Iron and manganese oxides combine state;Sulfide and organically combine state;Residue
State etc..Exchangeable species belong to effective and easy utilization absorbed by crops, referred to as using state;Carbonate combine state is referred to and carbon
The heavy metal that hydrochlorate is combined;Ferrimanganic refers to the heavy metal ion combined with ferrimanganic with reference to state, there is very strong combination energy between them
Power;Sulfide and organically combine state refer to the heavy metal combined with sulphur and the heavy metal ion of complex compound are formed with organic matter;It is residual
Slag state is referred to extracts the heavy metal ion existed with phyllosilicate form after aforementioned four component, wherein exchangeable species and has
The biological effectiveness that machine combines state heavy metal is higher, and other biological effectivenesses are low.Therefore exchangeable species how to be reduced and is had
Machine with reference to the biological effectiveness of state heavy metal be process soil in heavy metal key point, existing process heavy metal in soil
Method mainly have:The methods such as curing/stabilizing, chemical reagent extraction, microorganism leaching, burning, phytoremediation.Chemical method,
The shortcoming of bioanalysis, phytoremediation and burning method is:Removing heavy metals are gone not only to need substantial amounts of financial resources, thing from soil
Power, and take this method clearly unpractiaca in the face of soil, and those absorptions are enriched the plant of heavy metal, there is also
And be difficult to further process, and be likely to result in secondary pollution problem.It is this present inventor by substantial amounts of experiment and research, carries
Supply one kind to provide nutrition to peanut growth, moreover it is possible to effectively solving nutrient element loss, heavy metal pollution of soil, had
Peanut Special slow release fertilizer containing thio sulfide of malicious harmful substance pollution and preparation method thereof.
The content of the invention
To solve above-mentioned technical problem, the invention provides a kind of peanut Special slow release fertilizer containing thio sulfide and its system
Preparation Method.
The present invention is achieved by the following technical programs:
A kind of peanut Special slow release fertilizer containing thio sulfide, it is made up of following raw material:Potassium nitrate 14-20
Part, ammonium sulfate 10-16 parts, urea 42-62 parts, calcium superphosphate 4-10 parts, potassium dihydrogen phosphate 18-24 parts, additive 6-12 parts, sulphur
For sulfide 10-16 parts, modified montmorillonite used 20-26 parts, PLA 52-58 parts, polyvinyl alcohol 50-56 parts.
The peanut Special slow release fertilizer containing thio sulfide is made up of following raw material:Potassium nitrate 16-18 parts, sulphur
Sour ammonium 12-14 parts, urea 47-57 parts, calcium superphosphate 6-8 parts, potassium dihydrogen phosphate 20-22 parts, additive 8-10 parts, thio sulfuration
Thing 12-14 parts, modified montmorillonite used 22-24 parts, PLA 54-56 parts, polyvinyl alcohol 52-54 parts.
The peanut Special slow release fertilizer containing thio sulfide is made up of following raw material:17 parts of potassium nitrate, sulfuric acid
13 parts of ammonium, 52 parts of urea, 7 parts of calcium superphosphate, 21 parts of potassium dihydrogen phosphate, 9 parts of additive, 13 parts of thio sulfide, modified illiteracy take off
23 parts of stone, 55 parts of PLA, 53 parts of polyvinyl alcohol.
The additive be alginic acid, sugar alcohol, plant growth regulator, herbicide according to etc. form than configuration.
The plant growth regulator be gibberellin, CPPU, 6- benzylaminopurines, brassinosteroid, triacontanol
In one kind.
The herbicide be Oxyfluorfen, 48% Amex820 missible oil, 48% trifluralin ec, 48% drag-line missible oil,
72% all in your missible oil, 50% acetochlor ec, 50% Simanex wettable powder, 40% Atrazine suspending agent at least one
Kind.
The thio sulfide is the one kind in sodium thiosulfate, potassium thiosulfate, ATS (Ammonium thiosulphate).
The modified montmorillonite used preparation method is:
(1) crush:Montmorillonite is obtained into montmorillonite powder with ball mill ball milling into the fine powder of fineness≤0.04mm;
(2) activate:Montmorillonite powder is sent into ultrasonic device, in the case where ultrasonic power is 600-1000w 20-40min is processed,
It is re-fed into calcining the high-temperature calcination 90-120min in tower with 300-600 DEG C, montmorillonite powder is added in absolute ethyl alcohol after cooling,
Centrifugation after ultrasonic disperse 10-18min, repeats ultrasonic disperse, centrifugation 2-3 time, subsequently adds in distilled water, ultrasonic disperse
Centrifugation after 10-15min, repeats ultrasonic disperse, centrifugation 2-3 time;
(3) intercalation:Montmorillonite powder after activation is added water the montmorillonite ore deposit for being adjusted to that mass percent concentration is 20-40%
Slurry, is subsequently added into the intercalator containing amido, and pressure 0.5-0.8MPa, temperature 40-60 DEG C, rotating speed 1000r/ are controlled during reaction
Min, time 80-100min, microwave power is 10-18kw, obtains modified montmorillonite used.
The intercalator is the one kind in ethylenediamine, diethylenetriamine, triethylene tetramine, TEPA.
Present invention also offers the preparation method of the above-mentioned peanut Special slow release fertilizer containing thio sulfide, the method is by nitre
Granulation after sour potassium, ammonium sulfate, urea, calcium superphosphate, potassium dihydrogen phosphate, additive, thio sulfide are well mixed obtains particle diameter
For 2-5mm, N:P2O5:The mol ratio of K2O is 3:3:1 composite fertilizer, then the composite fertilizer is well mixed with modified montmorillonite used
To compound, adopt by the degradation material and compound obtained after PLA, polyethylene blend according to mass ratio as (1-
1.2):1 ratio is wrapped up the peanut Special slow release fertilizer for obtaining sulfur-bearing for sulfide.
The beneficial effects of the present invention is:The present invention first will be obtained composite fertilizer after the blending of each raw material, and control in composite fertilizer
N P and K constituent content and the particle size of composite fertilizer, the gas permeability of fertilizer is improved, again by gathering after mixing with montmorillonite
The degradation material obtained after lactic acid, polyethylene blend carries out wrapping up its degradation cycle and the growth period of peanut is close so that system
It is standby go out Controlled Release Fertilizer disclosure satisfy that nutrition needed for peanut growth, due to this slow-release fertilizer employ it is modified montmorillonite used, can and fertilizer
Thio sulfide in material produces synergy, i.e., modified montmorillonite used by the absorption of heavy metal micelle, and heavy metal ion is exchanged
Out, content of beary metal in the soil liquid is improved, is reacted with thio sulfide beneficial to heavy metal ion, and thio sulfide
React production precipitation with heavy metal ion, so as to heavy metal ion be fixed, prevent that it passes through leaching and runoff is moved
Move, in addition, valence heavy metal ions are reduced into lower valency by sodium thiosulfate, so as to reduce its toxicity and dissolubility, this sulfur-bearing
Contain multiple nutritional components for the peanut Special slow release fertilizer of sulfide, can meet needs of the peanut to various nutrients, and due to
The raw materials such as thiosulfuric acid thing, plant growth regulator, herbicide are added in the raw material of this slow-release fertilizer, during peanut cultivation
Heavy metal pollution of soil, poisonous and harmful substance residue problem are not only can effectively solve the problem that using this slow-release fertilizer, moreover it is possible to play improvement
Planting environment, suppresses weed growth, improves the advantage of peanut growing way.
Specific embodiment
Technical scheme is further described below in conjunction with specific embodiment, but claimed scope is not
It is confined to described.
Embodiment one
Formula:14 parts of potassium nitrate, 10 parts of ammonium sulfate, 42 parts of urea, 4 parts of calcium superphosphate, 18 parts of potassium dihydrogen phosphate, additive
6 parts, 10 parts of thio sulfide, modified montmorillonite used 20 parts, 52 parts of PLA, 50 parts of polyvinyl alcohol.
Modified montmorillonite used preparation method:
(1) crush:Montmorillonite is obtained into montmorillonite powder with ball mill ball milling into the fine powder of fineness≤0.04mm;
(2) activate:Montmorillonite powder is sent into ultrasonic device, in the case where ultrasonic power is 600w 20min is processed, be re-fed into forging
Burn in tower with 300 DEG C of high-temperature calcination 90min, by montmorillonite powder addition absolute ethyl alcohol after cooling, after ultrasonic disperse 10min from
The heart is separated, and repeats ultrasonic disperse, centrifugation 2 times, is subsequently added in distilled water, centrifugation after ultrasonic disperse 10min, repeats super
Sound dispersion, centrifugation 2 times;
(3) intercalation:Montmorillonite powder after activation is added water the montmorillonite ore pulp for being adjusted to that mass percent concentration is 20%,
The intercalator containing amido is subsequently added into, pressure 0.5MPa, 40 DEG C of temperature, rotating speed 1000r/min, time are controlled during reaction
80min, microwave power is 10kw, obtains modified montmorillonite used.
The preparation method of the peanut Special slow release fertilizer containing thio sulfide:By potassium nitrate, ammonium sulfate, urea, calcium superphosphate,
Granulation after potassium dihydrogen phosphate, additive, thio sulfide are well mixed obtains particle diameter for 2-5mm, N:P2O5:The mol ratio of K2O
For 3:3:1 composite fertilizer, then the composite fertilizer is obtained into compound with modified montmorillonite used being well mixed, using by PLA, poly- second
The degradation material obtained after alkene blending is 1 according to mass ratio with compound:1 ratio is wrapped up obtain sulfur-bearing generation sulfuration
The peanut Special slow release fertilizer of thing.
Embodiment two
Formula:It is 20 parts of potassium nitrate, 16 parts of ammonium sulfate, 62 parts of urea, 10 parts of calcium superphosphate, 24 parts of potassium dihydrogen phosphate, additional
12 parts of agent, 16 parts of thio sulfide, modified montmorillonite used 26 parts, 58 parts of PLA, 56 parts of polyvinyl alcohol.
Modified montmorillonite used preparation method:
(1) crush:Montmorillonite is obtained into montmorillonite powder with ball mill ball milling into the fine powder of fineness≤0.04mm;
(2) activate:Montmorillonite powder is sent into ultrasonic device, in the case where ultrasonic power is 1000w 40min is processed, be re-fed into
The high-temperature calcination 120min with 600 DEG C in tower is calcined, montmorillonite powder is added in absolute ethyl alcohol after cooling, ultrasonic disperse 18min
Centrifugation afterwards, repeats ultrasonic disperse, centrifugation 3 times, subsequently adds in distilled water, centrifugation after ultrasonic disperse 15min, weight
Multiple ultrasonic disperse, centrifugation 3 times;
(3) intercalation:Montmorillonite powder after activation is added water the montmorillonite ore pulp for being adjusted to that mass percent concentration is 40%,
The intercalator containing amido is subsequently added into, pressure 0.8MPa, temperature 60 C, rotating speed 1000r/min, time are controlled during reaction
100min, microwave power is 18kw, obtains modified montmorillonite used.
The preparation method of the peanut Special slow release fertilizer containing thio sulfide:By potassium nitrate, ammonium sulfate, urea, calcium superphosphate,
Granulation after potassium dihydrogen phosphate, additive, thio sulfide are well mixed obtains particle diameter for 2-5mm, N:P2O5:The mol ratio of K2O
For 3:3:1 composite fertilizer, then the composite fertilizer is obtained into compound with modified montmorillonite used being well mixed, using by PLA, poly- second
The degradation material obtained after alkene blending is 1.2 according to mass ratio with compound:1 ratio is wrapped up obtain sulfur-bearing for sulphur
The peanut Special slow release fertilizer of compound.
Embodiment three
Formula:16 parts of potassium nitrate, 12 parts of ammonium sulfate, 47 parts of urea, 6 parts of calcium superphosphate, 20 parts of potassium dihydrogen phosphate, additive
8 parts, 12 parts of thio sulfide, modified montmorillonite used 22 parts, 54 parts of PLA, 52 parts of polyvinyl alcohol.
Modified montmorillonite used preparation method:
(1) crush:Montmorillonite is obtained into montmorillonite powder with ball mill ball milling into the fine powder of fineness≤0.04mm;
(2) activate:Montmorillonite powder is sent into ultrasonic device, in the case where ultrasonic power is 600w 20min is processed, be re-fed into forging
The high-temperature calcination 90min with 300- DEG C in tower is burnt, montmorillonite powder is added in absolute ethyl alcohol, after ultrasonic disperse 10min after cooling
Centrifugation, repeats ultrasonic disperse, centrifugation 2 times, subsequently adds in distilled water, centrifugation after ultrasonic disperse 10min, repeats
Ultrasonic disperse, centrifugation 2 times;
(3) intercalation:Montmorillonite powder after activation is added water the montmorillonite ore pulp for being adjusted to that mass percent concentration is 20%,
The intercalator containing amido is subsequently added into, pressure 0.5MPa, 40 DEG C of temperature, rotating speed 1000r/min, time are controlled during reaction
80min, microwave power is 10kw, obtains modified montmorillonite used.
The preparation method of the peanut Special slow release fertilizer containing thio sulfide:By potassium nitrate, ammonium sulfate, urea, calcium superphosphate,
Granulation after potassium dihydrogen phosphate, additive, thio sulfide are well mixed obtains particle diameter for 2-5mm, N:P2O5:The mol ratio of K2O
For 3:3:1 composite fertilizer, then the composite fertilizer is obtained into compound with modified montmorillonite used being well mixed, using by PLA, poly- second
The degradation material obtained after alkene blending is 1 according to mass ratio with compound:1 ratio is wrapped up obtain sulfur-bearing generation sulfuration
The peanut Special slow release fertilizer of thing.
Example IV
Formula:18 parts of potassium nitrate, 14 parts of ammonium sulfate, 57 parts of urea, 8 parts of calcium superphosphate, 22 parts of potassium dihydrogen phosphate, additive
10 parts, 14 parts of thio sulfide, modified montmorillonite used 24 parts, 56 parts of PLA, 54 parts of polyvinyl alcohol.
Modified montmorillonite used preparation method:
(1) crush:Montmorillonite is obtained into montmorillonite powder with ball mill ball milling into the fine powder of fineness≤0.04mm;
(2) activate:Montmorillonite powder is sent into ultrasonic device, in the case where ultrasonic power is 1000w 40min is processed, be re-fed into
The high-temperature calcination 120min with 600 DEG C in tower is calcined, montmorillonite powder is added in absolute ethyl alcohol after cooling, ultrasonic disperse 18min
Centrifugation afterwards, repeats ultrasonic disperse, centrifugation 3 times, subsequently adds in distilled water, centrifugation after ultrasonic disperse 15min, weight
Multiple ultrasonic disperse, centrifugation 3 times;
(3) intercalation:Montmorillonite powder after activation is added water the montmorillonite ore pulp for being adjusted to that mass percent concentration is 40%,
The intercalator containing amido is subsequently added into, pressure 0.8MPa, temperature 60 C, rotating speed 1000r/min, time are controlled during reaction
100min, microwave power is 18kw, obtains modified montmorillonite used.
The preparation method of the peanut Special slow release fertilizer containing thio sulfide:By potassium nitrate, ammonium sulfate, urea, calcium superphosphate,
Granulation after potassium dihydrogen phosphate, additive, thio sulfide are well mixed obtains particle diameter for 2-5mm, N:P2O5:The mol ratio of K2O
For 3:3:1 composite fertilizer, then the composite fertilizer is obtained into compound with modified montmorillonite used being well mixed, using by PLA, poly- second
The degradation material obtained after alkene blending is 1.2 according to mass ratio with compound:1 ratio is wrapped up obtain sulfur-bearing for sulphur
The peanut Special slow release fertilizer of compound.
Embodiment five
Formula:17 parts of potassium nitrate, 13 parts of ammonium sulfate, 52 parts of urea, 7 parts of calcium superphosphate, 21 parts of potassium dihydrogen phosphate, additive
9 parts, 13 parts of thio sulfide, modified montmorillonite used 23 parts, 55 parts of PLA, 53 parts of polyvinyl alcohol.
Modified montmorillonite used preparation method:
(1) crush:Montmorillonite is obtained into montmorillonite powder with ball mill ball milling into the fine powder of fineness≤0.04mm;
(2) activate:Montmorillonite powder is sent into ultrasonic device, in the case where ultrasonic power is 800w 30min is processed, be re-fed into forging
The high-temperature calcination 105min with 450 DEG C in tower is burnt, montmorillonite powder is added in absolute ethyl alcohol, after ultrasonic disperse 14min after cooling
Centrifugation, repeats ultrasonic disperse, centrifugation 2 times, subsequently adds in distilled water, centrifugation after ultrasonic disperse 12.5min, weight
Multiple ultrasonic disperse, centrifugation 3 times;
(3) intercalation:Montmorillonite powder after activation is added water the montmorillonite ore pulp for being adjusted to that mass percent concentration is 30%,
The intercalator containing amido is subsequently added into, pressure 0.65MPa, temperature 50 C, rotating speed 1000r/min, time are controlled during reaction
90min, microwave power is 14kw, obtains modified montmorillonite used.
The preparation method of the peanut Special slow release fertilizer containing thio sulfide:By potassium nitrate, ammonium sulfate, urea, calcium superphosphate,
Granulation after potassium dihydrogen phosphate, additive, thio sulfide are well mixed obtains particle diameter for 2-5mm, N:P2O5:The mol ratio of K2O
For 3:3:1 composite fertilizer, then the composite fertilizer is obtained into compound with modified montmorillonite used being well mixed, using by PLA, poly- second
The degradation material obtained after alkene blending is 1.1 according to mass ratio with compound:1 ratio is wrapped up obtain sulfur-bearing for sulphur
The peanut Special slow release fertilizer of compound.
Embodiment six
Formula:It is 14 parts of potassium nitrate, 16 parts of ammonium sulfate, 42 parts of urea, 10 parts of calcium superphosphate, 18 parts of potassium dihydrogen phosphate, additional
12 parts of agent, 10 parts of thio sulfide, modified montmorillonite used 26 parts, 52 parts of PLA, 56 parts of polyvinyl alcohol.
Modified montmorillonite used preparation method:
(1) crush:Montmorillonite is obtained into montmorillonite powder with ball mill ball milling into the fine powder of fineness≤0.04mm;
(2) activate:Montmorillonite powder is sent into ultrasonic device, in the case where ultrasonic power is 600w 20min is processed, be re-fed into forging
Burn in tower with 300 DEG C of high-temperature calcination 90min, by montmorillonite powder addition absolute ethyl alcohol after cooling, after ultrasonic disperse 10min from
The heart is separated, and repeats ultrasonic disperse, centrifugation 2 times, is subsequently added in distilled water, centrifugation after ultrasonic disperse 10min, repeats super
Sound dispersion, centrifugation 2 times;
(3) intercalation:Montmorillonite powder after activation is added water the montmorillonite ore pulp for being adjusted to that mass percent concentration is 20%,
The intercalator containing amido is subsequently added into, pressure 0.5MPa, 40 DEG C of temperature, rotating speed 1000r/min, time are controlled during reaction
80min, microwave power is 10kw, obtains modified montmorillonite used.
The preparation method of the peanut Special slow release fertilizer containing thio sulfide:By potassium nitrate, ammonium sulfate, urea, calcium superphosphate,
Granulation after potassium dihydrogen phosphate, additive, thio sulfide are well mixed obtains particle diameter for 2-5mm, N:P2O5:The mol ratio of K2O
For 3:3:1 composite fertilizer, then the composite fertilizer is obtained into compound with modified montmorillonite used being well mixed, using by PLA, poly- second
The degradation material obtained after alkene blending is 1 according to mass ratio with compound:1 ratio is wrapped up obtain sulfur-bearing generation sulfuration
The peanut Special slow release fertilizer of thing.
Embodiment seven
Formula:20 parts of potassium nitrate, 10 parts of ammonium sulfate, 62 parts of urea, 4 parts of calcium superphosphate, 24 parts of potassium dihydrogen phosphate, additive
6 parts, 16 parts of thio sulfide, modified montmorillonite used 20 parts, 58 parts of PLA, 50 parts of polyvinyl alcohol.
Modified montmorillonite used preparation method:
(1) crush:Montmorillonite is obtained into montmorillonite powder with ball mill ball milling into the fine powder of fineness≤0.04mm;
(2) activate:Montmorillonite powder is sent into ultrasonic device, in the case where ultrasonic power is 1000w 40min is processed, be re-fed into
The high-temperature calcination 120min with 600 DEG C in tower is calcined, montmorillonite powder is added in absolute ethyl alcohol after cooling, ultrasonic disperse 18min
Centrifugation afterwards, repeats ultrasonic disperse, centrifugation 3 times, subsequently adds in distilled water, centrifugation after ultrasonic disperse 15min, weight
Multiple ultrasonic disperse, centrifugation 3 times;
(3) intercalation:Montmorillonite powder after activation is added water the montmorillonite ore pulp for being adjusted to that mass percent concentration is 40%,
The intercalator containing amido is subsequently added into, pressure 0.8MPa, temperature 60 C, rotating speed 1000r/min, time are controlled during reaction
100min, microwave power is 18kw, obtains modified montmorillonite used.
The preparation method of the peanut Special slow release fertilizer containing thio sulfide:By potassium nitrate, ammonium sulfate, urea, calcium superphosphate,
Granulation after potassium dihydrogen phosphate, additive, thio sulfide are well mixed obtains particle diameter for 2-5mm, N:P2O5:The mol ratio of K2O
For 3:3:1 composite fertilizer, then the composite fertilizer is obtained into compound with modified montmorillonite used being well mixed, using by PLA, poly- second
The degradation material obtained after alkene blending is 1.2 according to mass ratio with compound:1 ratio is wrapped up obtain sulfur-bearing for sulphur
The peanut Special slow release fertilizer of compound.
Embodiment eight
Formula:16 parts of potassium nitrate, 14 parts of ammonium sulfate, 47 parts of urea, 8 parts of calcium superphosphate, 20 parts of potassium dihydrogen phosphate, additive
10 parts, 12 parts of thio sulfide, modified montmorillonite used 24 parts, 54 parts of PLA, 54 parts of polyvinyl alcohol.
Modified montmorillonite used preparation method:
(1) crush:Montmorillonite is obtained into montmorillonite powder with ball mill ball milling into the fine powder of fineness≤0.04mm;
(2) activate:Montmorillonite powder is sent into ultrasonic device, in the case where ultrasonic power is 600w 20min is processed, be re-fed into forging
The high-temperature calcination 90min with 300- DEG C in tower is burnt, montmorillonite powder is added in absolute ethyl alcohol, after ultrasonic disperse 10min after cooling
Centrifugation, repeats ultrasonic disperse, centrifugation 2 times, subsequently adds in distilled water, centrifugation after ultrasonic disperse 10min, repeats
Ultrasonic disperse, centrifugation 2 times;
(3) intercalation:Montmorillonite powder after activation is added water the montmorillonite ore pulp for being adjusted to that mass percent concentration is 20%,
The intercalator containing amido is subsequently added into, pressure 0.5MPa, 40 DEG C of temperature, rotating speed 1000r/min, time are controlled during reaction
80min, microwave power is 10kw, obtains modified montmorillonite used.
The preparation method of the peanut Special slow release fertilizer containing thio sulfide:By potassium nitrate, ammonium sulfate, urea, calcium superphosphate,
Granulation after potassium dihydrogen phosphate, additive, thio sulfide are well mixed obtains particle diameter for 2-5mm, N:P2O5:The mol ratio of K2O
For 3:3:1 composite fertilizer, then the composite fertilizer is obtained into compound with modified montmorillonite used being well mixed, using by PLA, poly- second
The degradation material obtained after alkene blending is 1 according to mass ratio with compound:1 ratio is wrapped up obtain sulfur-bearing generation sulfuration
The peanut Special slow release fertilizer of thing.
Embodiment nine
Formula:18 parts of potassium nitrate, 12 parts of ammonium sulfate, 57 parts of urea, 6 parts of calcium superphosphate, 22 parts of potassium dihydrogen phosphate, additive
8 parts, 14 parts of thio sulfide, modified montmorillonite used 22 parts, 56 parts of PLA, 52 parts of polyvinyl alcohol.
Modified montmorillonite used preparation method:
(1) crush:Montmorillonite is obtained into montmorillonite powder with ball mill ball milling into the fine powder of fineness≤0.04mm;
(2) activate:Montmorillonite powder is sent into ultrasonic device, in the case where ultrasonic power is 1000w 40min is processed, be re-fed into
The high-temperature calcination 120min with 600 DEG C in tower is calcined, montmorillonite powder is added in absolute ethyl alcohol after cooling, ultrasonic disperse 18min
Centrifugation afterwards, repeats ultrasonic disperse, centrifugation 3 times, subsequently adds in distilled water, centrifugation after ultrasonic disperse 15min, weight
Multiple ultrasonic disperse, centrifugation 3 times;
(3) intercalation:Montmorillonite powder after activation is added water the montmorillonite ore pulp for being adjusted to that mass percent concentration is 40%,
The intercalator containing amido is subsequently added into, pressure 0.8MPa, temperature 60 C, rotating speed 1000r/min, time are controlled during reaction
100min, microwave power is 18kw, obtains modified montmorillonite used.
The preparation method of the peanut Special slow release fertilizer containing thio sulfide:By potassium nitrate, ammonium sulfate, urea, calcium superphosphate,
Granulation after potassium dihydrogen phosphate, additive, thio sulfide are well mixed obtains particle diameter for 2-5mm, N:P2O5:The mol ratio of K2O
For 3:3:1 composite fertilizer, then the composite fertilizer is obtained into compound with modified montmorillonite used being well mixed, using by PLA, poly- second
The degradation material obtained after alkene blending is 1.2 according to mass ratio with compound:1 ratio is wrapped up obtain sulfur-bearing for sulphur
The peanut Special slow release fertilizer of compound.
With reference to specific experiment example, the present invention is described further:
Experimental example 1
This slow-release fertilizer field demonstration test, experimental field ground is in Guizhou, has a moderate climate, with heavy rainfall, using every mu of field
Label is tested, and 10 mu of fields, the slow-release fertilizer prepared using conventional fertilizer application and conventional fertilizer application+the present embodiment 1-9 are selected altogether
Peanut cultivation experiment is carried out, experimental result is as shown in table 1:
The slow-release fertilizer field demonstration test of table 1
Project | Theoretical per mu yield (kilogram) | Actual per mu yield (kilogram) |
Conventional fertilizer application | 250-350 | 310 |
Conventional fertilizer application+embodiment one | 300-400 | 458 |
Conventional fertilizer application+embodiment two | 300-400 | 456 |
Conventional fertilizer application+embodiment three | 300-400 | 453 |
Conventional fertilizer application+example IV | 300-400 | 487 |
Conventional fertilizer application+embodiment five | 300-400 | 463 |
Conventional fertilizer application+embodiment six | 300-400 | 465 |
Conventional fertilizer application+embodiment seven | 300-400 | 446 |
Conventional fertilizer application+embodiment eight | 300-400 | 449 |
Conventional fertilizer application+embodiment nine | 300-400 | 486 |
The plantation of peanut its yield is carried out by the way of conventional fertilizer application as seen from the above in theoretical value, and adopts normal
The rule slow-release fertilizers prepared of fertilising+the present embodiment 1-9 carry out the plantation of peanut its yield and are not only above theoretical value but also much
It is using conventional fertilizer application higher than independent, therefore the plantation for carrying out peanut using the present invention is that have higher effect of increasing production.
Experimental example 2
Heavy metal-polluted soil process experiment:
Surveyed as carrier addition exogenous heavy metal pollutant with the free of contamination cinnamon soil in Guizhou Province and contained at its soil depth 5-20cm
Pb100mg/kg, Cd6mg/kg, Cr900mg/kg, Cu980mg/kg, using the soil as experiment soil, by the embodiment of the present invention
In the slow-release fertilizer prepared throw in experiment soil, heavy metal concentration inspection at soil soil depth 5-20cm is carried out after 15 days
Survey, its testing result is as shown in table 2:
The heavy metal-polluted soil of table 2 processes experimental result
From the foregoing, it will be observed that being thrown in experiment soil after 15 days using the slow-release fertilizer prepared in the embodiment of the present invention, soil
Content of beary metal at 5-15cm is significantly reduced, and illustrates that the thio sulfide contained in this slow-release fertilizer occurs with heavy metal ion
Reaction production precipitation, so as to heavy metal ion be fixed, prevents it from passing through leaching and footpath stream migration, in addition in this slow-release fertilizer
Thio sulfide valence heavy metal ions can also be reduced into lower valency, effectively reduce its toxicity and dissolubility.
Claims (9)
1. a kind of peanut Special slow release fertilizer containing thio sulfide, it is characterised in that:It is made up of following raw material:Nitric acid
Potassium 14-20 parts, ammonium sulfate 10-16 parts, urea 42-62 parts, calcium superphosphate 4-10 parts, potassium dihydrogen phosphate 18-24 parts, additive 6-
12 parts, thio sulfide 10-16 parts, modified montmorillonite used 20-26 parts, PLA 52-58 parts, polyvinyl alcohol 50-56 parts.
2. the peanut Special slow release fertilizer containing thio sulfide according to claim 1, it is characterised in that:It is described containing thio sulphur
The peanut Special slow release fertilizer of compound is made up of following raw material:Potassium nitrate 16-18 parts, ammonium sulfate 12-14 parts, urea 47-
57 parts, calcium superphosphate 6-8 parts, potassium dihydrogen phosphate 20-22 parts, additive 8-10 parts, thio sulfide 12-14 parts, modified cover de-
Stone 22-24 parts, PLA 54-56 parts, polyvinyl alcohol 52-54 parts.
3. the peanut Special slow release fertilizer containing thio sulfide according to claim 1, it is characterised in that:It is described containing thio sulphur
The peanut Special slow release fertilizer of compound is made up of following raw material:17 parts of potassium nitrate, 13 parts of ammonium sulfate, excessively 52 parts of urea, phosphorus
7 parts of sour calcium, 21 parts of potassium dihydrogen phosphate, 9 parts of additive, 13 parts of thio sulfide, modified montmorillonite used 23 parts, it is 55 parts of PLA, poly-
53 parts of vinyl alcohol.
4. the peanut Special slow release fertilizer containing thio sulfide according to claim 1, it is characterised in that:The additive is
Alginic acid, sugar alcohol, plant growth regulator, herbicide according to etc. form than configuration.
5. the peanut Special slow release fertilizer containing thio sulfide according to claim 4, it is characterised in that:The plant growth
Conditioning agent be gibberellin, CPPU, 6- benzylaminopurines, brassinosteroid, the one kind in triacontanol.
6. the peanut Special slow release fertilizer containing thio sulfide according to claim 4, it is characterised in that:The herbicide is
Oxyfluorfen, 48% Amex820 missible oil, 48% trifluralin ec, 48% drag-line missible oil, 72% all your missible oil, 50% Acetochlor
At least one in missible oil, 50% Simanex wettable powder, 40% Atrazine suspending agent.
7. the peanut Special slow release fertilizer containing thio sulfide according to claim 1, it is characterised in that:The thio sulfuration
Thing is the one kind in sodium thiosulfate, potassium thiosulfate, ATS (Ammonium thiosulphate).
8. according to the arbitrary described peanut Special slow release fertilizer containing thio sulfide of claim 1-3, it is characterised in that:It is described to change
The preparation method of property montmorillonite is:
(1) crush:Montmorillonite is obtained into montmorillonite powder with ball mill ball milling into the fine powder of fineness≤0.04mm;
(2) activate:Montmorillonite powder is sent into ultrasonic device, in the case where ultrasonic power is 600-1000w 20-40min is processed, then send
Enter and calcine the high-temperature calcination 90-120min that 300-600 DEG C is used in tower, montmorillonite powder is added in absolute ethyl alcohol after cooling, ultrasound
Centrifugation after dispersion 10-18min, repeats ultrasonic disperse, centrifugation 2-3 time, subsequently adds in distilled water, ultrasonic disperse 10-
Centrifugation after 15min, repeats ultrasonic disperse, centrifugation 2-3 time;
(3) intercalation:Montmorillonite powder after activation is added water the montmorillonite ore pulp for being adjusted to that mass percent concentration is 20-40%,
The intercalator containing amido is subsequently added into, control pressure 0.5-0.8MPa during reaction, temperature 40-60 DEG C, rotating speed 1000r/min,
Time 80-100min, microwave power is 10-18kw, obtains modified montmorillonite used.
9. the peanut Special slow release fertilizer containing thio sulfide according to claim 8, it is characterised in that:The intercalator is
One kind in ethylenediamine, diethylenetriamine, triethylene tetramine, TEPA.
A kind of preparation method of the peanut Special slow release fertilizer containing thio sulfide as described in claim 1-3 is arbitrary, its feature
It is:The method is that potassium nitrate, ammonium sulfate, urea, calcium superphosphate, potassium dihydrogen phosphate, additive, the mixing of thio sulfide is equal
Granulation after even obtains particle diameter for 2-5mm, N:P2O5:The mol ratio of K2O is 3:3:1 composite fertilizer, then by the composite fertilizer with it is modified
Montmorillonite is well mixed and obtains compound, using by the degradation material and compound obtained after PLA, polyethylene blend by
It is (1-1.2) according to mass ratio:1 ratio is wrapped up the peanut Special slow release fertilizer for obtaining sulfur-bearing for sulfide.
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CN101757885A (en) * | 2008-12-25 | 2010-06-30 | 恩达电路(深圳)有限公司 | Heavy metal chelating agent and preparation method thereof |
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CN101757885A (en) * | 2008-12-25 | 2010-06-30 | 恩达电路(深圳)有限公司 | Heavy metal chelating agent and preparation method thereof |
CN102491850A (en) * | 2011-12-21 | 2012-06-13 | 新疆慧尔农业科技发展有限公司 | Long-acting slow release fertilizer special for tomatoes and preparation method thereof |
CN104845626A (en) * | 2015-05-05 | 2015-08-19 | 长沙华时捷环保科技发展有限公司 | Passivating agent for governing heavy metal contaminated soil and preparation and use method of passivating agent |
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