CN106831197A - A kind of wheat stalk base novel sustained-controll-release fertiliser of high water absorbing and retaining performances and preparation method thereof - Google Patents
A kind of wheat stalk base novel sustained-controll-release fertiliser of high water absorbing and retaining performances and preparation method thereof Download PDFInfo
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- CN106831197A CN106831197A CN201710181937.7A CN201710181937A CN106831197A CN 106831197 A CN106831197 A CN 106831197A CN 201710181937 A CN201710181937 A CN 201710181937A CN 106831197 A CN106831197 A CN 106831197A
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- wheat stalk
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Classifications
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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
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C1/00—Ammonium nitrate fertilisers
-
- 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
- C05G5/10—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
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Soil Sciences (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a kind of wheat stalk base novel sustained-controll-release fertiliser of high water absorbing and retaining performances, and its preparation technology, characterized in that, with wheat stalk, urea, attapulgite, sodium alginate, acrylic acid, borax, itaconic acid, acrylamide, ammonium ceric nitrate, ammonium persulfate, bentonite, humic acid, zeolite, bacillus etc. as raw material.With ammonium ceric nitrate as initiator, with ammonium persulfate as crosslinking agent, itaconic acid is prepared for a kind of composite highly-absorbent resin to the present invention with acrylic amide graft copolymerization, and with good water holding capacity, the addition of attapulgite improves the salt-resistance of high hydroscopic resin.Bentonite can improve soil texture, improve water conservation drought resisting, the fertilizer conservation getting fat ability of soil；It is simultaneously bentonitic to add water absorption rate, water retention property and the heat endurance that improve high hydroscopic resin；It is combined with humic acid, zeolite, bacillus and is prepared for soil conditioner, can be used to adjust soil acidity or alkalinity, buffering soil value, and then improve crop yield.
Description
Technical field
The present invention relates to fertilizer field, and in particular to a kind of wheat stalk base novel sustained-controll-release fertiliser of high water absorbing and retaining performances,
And its preparation technology.
Background technology
China is agricultural production big country, and substantial amounts of agricultural crop straw is produced therefrom, and directly burning can cause serious ring
Border problem, such as soil erosion, desertification.And, biomass carbon solid is obtained through pyrolysis by agricultural crop straw under certain condition
Product, the biomass carbon being prepared into using crop straw refuse can be realized being widely applied in agriculture field.
Xie Lihua is in its master thesis《The preparation of wheat stalk base novel sustained-controll-release fertiliser and its performance study
》In one text, introduce wheat stalk and attapulgite to prepare composite highly-absorbent resin, wheat stalk is changed by carboxy methylation
Property, acrylic monomers is grafted on modified straw skeleton, prepare super absorbent resin；Attapulgite clay can be used to prepare resistance to
Salt high hydroscopic resin；Urea and borax are embedded in the carboxymethyl-modification attapulgite clay compounded super absorbent resin of straw polyacrylic acid
In fat, and it is fertilizer kernel with the attapulgite and sodium alginate gel particle that are embedded with urea in this, as coated fertilizer.
The present invention with ammonium ceric nitrate as initiator, with ammonium persulfate as crosslinking agent, itaconic acid and acrylic amide graft copolymerization
A kind of composite highly-absorbent resin is prepared for, with good water holding capacity, the addition of attapulgite improves high hydroscopic resin
Salt-resistance.Bentonite can improve the structure of soil, improve water conservation drought resisting, the fertilizer conservation getting fat ability of soil；Meanwhile, it is bentonitic to add
Enter to also improve water absorption rate, water retention property and the heat endurance of high hydroscopic resin；It is multiple with humic acid, zeolite, bacillus
Conjunction prepares a kind of soil conditioner, can be used to adjust soil acidity or alkalinity, buffering soil value, and then improve crop yield.
The content of the invention
The present invention solves the technical problem of a kind of wheat stalk base novel slow-release or control-release fertilizer of high water absorbing and retaining performances of offer
Material and its preparation technology, the fertilizer prepared according to the technique have good sustained release performance, high-hydroscopicity high-moisture-retention.
The technical problems to be solved by the invention are realized using following technical scheme：
Wheat stalk 40-45, urea 15-20, attapulgite 6-10, sodium alginate 5-10, acrylic acid 6-12, borax 4-9, clothing health
Sour 4-7, acrylamide 3-5, ammonium ceric nitrate 2-5, ammonium persulfate 2-4, bentonite 6-9, humic acid 5-7, zeolite 3-6, gemma bar
Bacterium 2-5, NaOH solution, calcium chloride water, distillation appropriate amount of water.
The preparation method of the wheat stalk base novel sustained-controll-release fertiliser of a kind of high water absorbing and retaining performances, it is characterised in that by following
Step is carried out：
A. wheat stalk is dried to constant weight through 40-60 DEG C, crushes and screens treatment, collect a diameter of 0.1-0.5mm, 1:10-
30 are put into distilled water, in 60-70 DEG C of heating water bath 4-8h, mechanical agitation 3-5h, filtering, in 100-110 DEG C of dry for standby；
B. in itaconic acid 1:3-5:15-20 adds NaOH solution, distilled water, stirs, and adds acrylamide, cerous nitrate
Ammonium, after stirring 1-2h, obtains A liquid；Acrylic acid is placed in ice bath, 1:After 5-10 adds NaOH solution part to neutralize, mix with A liquid
It is even, add gained wheat stalk, attapulgite, borax in a, the ultrasound 1-2h at 30-40 DEG C to be passed through nitrogen, add persulfuric acid
Ammonium, lasting stirring, heating water bath, by gained sample in 70-80 DEG C of drying, grinds to 60-70 DEG C of reaction 3-5h, stand-by；
C. bentonite is mixed with humic acid, 1:10-15 adds distilled water, stirs, and tune pH is 8-9, adds zeolite, bud
Spore bacillus, sonic oscillation 2-4h, freeze-drying, grind at 30-40 DEG C, cross 100-200 mesh sieves, stand-by；
D. urea was crushed into 40-100 mesh sieves, 1:15-25 adds sodium alginate, distilled water, stirs, super at 20-30 DEG C
Sound 1-2h, 1:6-10 is added drop-wise in calcium chloride water, stirs 10-30min, institute in filtering, dry fertilizer kernel, with b, c
Obtain after material mixes and be placed in granulating disc, rotate disk, in the case where water spray is distilled, form coating layer, rear stopping to be formed
Granulation, a kind of slow release fertilizer is obtained in drying box in 40-50 DEG C of drying to constant weight.
Attapulgite described in step b, the immersion treatment 1-2h in 60-70 DEG C of hydrochloric acid solution, is washed with distilled water to pH=
6-7,100-110 DEG C of drying for standby；NaOH concentration of aqueous solution described in step b is 5-8 mol/L；Calcium chloride described in step d
Concentration of aqueous solution is 5-10%.
Reaction mechanism of the invention is as follows：
（1）The present invention with ammonium ceric nitrate as initiator, with ammonium persulfate as crosslinking agent, itaconic acid and acrylic amide graft copolymerization system
For a kind of composite highly-absorbent resin, with good water holding capacity, the addition of attapulgite improves the anti-of high hydroscopic resin
Salt.
（2）Bentonite can improve the structure of soil, improve water conservation drought resisting, the fertilizer conservation getting fat ability of soil；Meanwhile, bentonite
Addition also improve water absorption rate, water retention property and the heat endurance of high hydroscopic resin；By itself and humic acid, zeolite, gemma bar
Bacterium is compound to prepare a kind of soil conditioner, can be used to adjust soil acidity or alkalinity, buffering soil value, and then produce are made in raising
Amount.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention is realized are easy to understand, tie below
Specific embodiment is closed, the present invention is expanded on further.
Embodiment
A kind of wheat stalk base novel sustained-controll-release fertiliser of high water absorbing and retaining performances, is obtained by the raw material of following weight parts (g)：
Wheat stalk 40, urea 20, attapulgite 10, sodium alginate 10, acrylic acid 12, borax 9, itaconic acid 7, acrylamide 5,
Ammonium ceric nitrate 5, ammonium persulfate 4, bentonite 9, humic acid 7, zeolite 6, bacillus 5, NaOH solution, calcium chloride water, steaming
Appropriate distilled water.
The preparation method of the wheat stalk base novel sustained-controll-release fertiliser of a kind of high water absorbing and retaining performances, it is characterised in that by following
Step is carried out：
A. wheat stalk is dried to constant weight through 50-60 DEG C, crushes and screens treatment, collect a diameter of 0.1-0.5mm, 1:20-
30 are put into distilled water, in 60-70 DEG C of heating water bath 6h, mechanical agitation 3h, filtering, in 100-110 DEG C of dry for standby；
B. in itaconic acid 1:5:20 add NaOH solution, distilled water, stir, and add acrylamide, ammonium ceric nitrate, stirring
After 1h, A liquid is obtained；Acrylic acid is placed in ice bath, 1:After 10 add NaOH solution part to neutralize, it is well mixed with A liquid, in addition a
Gained wheat stalk, attapulgite, borax, the ultrasound 1h at 30-40 DEG C are passed through nitrogen, add ammonium persulfate, lasting to stir,
Heating water bath, by gained sample in 70-80 DEG C of drying, grinds to 60-70 DEG C of reaction 3h, stand-by；
C. bentonite is mixed with humic acid, 1:15 add distilled water, stir, and tune pH is 8-9, adds zeolite, gemma bar
Bacterium, sonic oscillation 2h, freeze-drying, grind at 30-40 DEG C, cross 100-200 mesh sieves, stand-by；
D. urea was crushed into 40-100 mesh sieves, 1:20 add sodium alginate, distilled water, stir, in 20-30 DEG C of ultrasound
2h, 1:10 are added drop-wise in calcium chloride water, stir 30min, and filtering, dry fertilizer kernel mix with resulting material in b, c
After be placed in granulating disc, rotate disk, distill water spray under, formed coating layer, it is to be formed after stop granulation, in drying
In case a kind of slow release fertilizer is obtained in 40-50 DEG C of drying to constant weight.
Claims (5)
1. the wheat stalk base novel sustained-controll-release fertiliser of a kind of high water absorbing and retaining performances, it is characterised in that by the raw material of following weight parts
It is obtained：
Wheat stalk 40-45, urea 15-20, attapulgite 6-10, sodium alginate 5-10, acrylic acid 6-12, borax 4-9, clothing health
Sour 4-7, acrylamide 3-5, ammonium ceric nitrate 2-5, ammonium persulfate 2-4, bentonite 6-9, humic acid 5-7, zeolite 3-6, gemma bar
Bacterium 2-5, NaOH solution, calcium chloride water, distillation appropriate amount of water.
2. the preparation method of the wheat stalk base novel sustained-controll-release fertiliser of a kind of high water absorbing and retaining performances according to claim 1,
Characterized in that, carrying out according to the following steps：
A. wheat stalk is dried to constant weight through 40-60 DEG C, crushes and screens treatment, collect a diameter of 0.1-0.5mm, 1:10-
30 are put into distilled water, in 60-70 DEG C of heating water bath 4-8h, mechanical agitation 3-5h, filtering, in 100-110 DEG C of dry for standby；
B. in itaconic acid 1:3-5:15-20 adds NaOH solution, distilled water, stirs, and adds acrylamide, cerous nitrate
Ammonium, after stirring 1-2h, obtains A liquid；Acrylic acid is placed in ice bath, 1:After 5-10 adds NaOH solution part to neutralize, mix with A liquid
It is even, add gained wheat stalk, attapulgite, borax in a, the ultrasound 1-2h at 30-40 DEG C to be passed through nitrogen, add persulfuric acid
Ammonium, lasting stirring, heating water bath, by gained sample in 70-80 DEG C of drying, grinds to 60-70 DEG C of reaction 3-5h, stand-by；
C. bentonite is mixed with humic acid, 1:10-15 adds distilled water, stirs, and tune pH is 8-9, adds zeolite, bud
Spore bacillus, sonic oscillation 2-4h, freeze-drying, grind at 30-40 DEG C, cross 100-200 mesh sieves, stand-by；
D. urea was crushed into 40-100 mesh sieves, 1:15-25 adds sodium alginate, distilled water, stirs, super at 20-30 DEG C
Sound 1-2h, 1:6-10 is added drop-wise in calcium chloride water, stirs 10-30min, institute in filtering, dry fertilizer kernel, with b, c
Obtain after material mixes and be placed in granulating disc, rotate disk, in the case where water spray is distilled, form coating layer, rear stopping to be formed
Granulation, a kind of slow release fertilizer is obtained in drying box in 40-50 DEG C of drying to constant weight.
3. the preparation method of the wheat stalk base novel sustained-controll-release fertiliser of a kind of high water absorbing and retaining performances according to claim 2,
Characterized in that, attapulgite described in step b, the immersion treatment 1-2h in 60-70 DEG C of hydrochloric acid solution, are washed with distilled water to
PH=6-7,100-110 DEG C of drying for standby.
4. the preparation method of the wheat stalk base novel sustained-controll-release fertiliser of a kind of high water absorbing and retaining performances according to claim 2,
Characterized in that, NaOH concentration of aqueous solution described in step b is 5-8 mol/L.
5. the preparation method of the wheat stalk base novel sustained-controll-release fertiliser of a kind of high water absorbing and retaining performances according to claim 2,
Characterized in that, calcium chloride water concentration described in step d is 5-10%.
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| CN201710181937.7A CN106831197A (en) | 2017-03-24 | 2017-03-24 | A kind of wheat stalk base novel sustained-controll-release fertiliser of high water absorbing and retaining performances and preparation method thereof |
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| CN201710181937.7A CN106831197A (en) | 2017-03-24 | 2017-03-24 | A kind of wheat stalk base novel sustained-controll-release fertiliser of high water absorbing and retaining performances and preparation method thereof |
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Cited By (6)
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|---|---|---|---|---|
| CN108093731A (en) * | 2017-12-15 | 2018-06-01 | 柳州市汉象教育咨询有限责任公司 | A kind of stony desertification treatment method |
| CN110194697A (en) * | 2019-05-25 | 2019-09-03 | 赵鑫飚 | A kind of bio-feritlizer and its processing technology with water retaining function |
| CN112778060A (en) * | 2020-12-25 | 2021-05-11 | 南京农业大学 | Graft copolymerization straw and attapulgite composite water retention material for matrix and preparation method thereof |
| CN113480374A (en) * | 2021-08-16 | 2021-10-08 | 青岛农业大学 | Water-retention slow-release compound fertilizer and preparation method thereof |
| CN115093288A (en) * | 2022-07-22 | 2022-09-23 | 青岛科光生物技术有限公司 | Alginic acid water-retention slow-release fertilizer and preparation method thereof |
| CN115286456A (en) * | 2022-08-24 | 2022-11-04 | 广东海洋大学 | Preparation method and application of water-retention slow-release compound fertilizer |
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|---|---|---|---|---|
| CN108093731A (en) * | 2017-12-15 | 2018-06-01 | 柳州市汉象教育咨询有限责任公司 | A kind of stony desertification treatment method |
| CN110194697A (en) * | 2019-05-25 | 2019-09-03 | 赵鑫飚 | A kind of bio-feritlizer and its processing technology with water retaining function |
| CN112778060A (en) * | 2020-12-25 | 2021-05-11 | 南京农业大学 | Graft copolymerization straw and attapulgite composite water retention material for matrix and preparation method thereof |
| CN112778060B (en) * | 2020-12-25 | 2022-04-19 | 南京农业大学 | Graft copolymerization straw and attapulgite composite water retention material for matrix and preparation method thereof |
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| CN113480374B (en) * | 2021-08-16 | 2023-02-24 | 青岛农业大学 | Water-retention slow-release compound fertilizer and preparation method thereof |
| CN115093288A (en) * | 2022-07-22 | 2022-09-23 | 青岛科光生物技术有限公司 | Alginic acid water-retention slow-release fertilizer and preparation method thereof |
| CN115286456A (en) * | 2022-08-24 | 2022-11-04 | 广东海洋大学 | Preparation method and application of water-retention slow-release compound fertilizer |
| CN115286456B (en) * | 2022-08-24 | 2024-04-09 | 广东海洋大学 | Preparation method and application of water-retention slow-release compound fertilizer |
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Application publication date: 20170613 |