CN104710235A - Novel slow-release particle magnesium fertilizer and preparation method thereof - Google Patents
Novel slow-release particle magnesium fertilizer and preparation method thereof Download PDFInfo
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- CN104710235A CN104710235A CN201410839238.3A CN201410839238A CN104710235A CN 104710235 A CN104710235 A CN 104710235A CN 201410839238 A CN201410839238 A CN 201410839238A CN 104710235 A CN104710235 A CN 104710235A
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Abstract
The invention relates to the fertilizer processing field, and provides a novel slow-release particle magnesium fertilizer. A preparation method comprises the following steps: taking magnesium sulfate monohydrate and magnesium oxide as powder, mixing according to corresponding proportion, under acidic medium condition, adding water-soluble chitosan in an acidic medium for dissolving, performing polymerization for granulation, wherein the magnesium fertilizer comprises the following raw materials by mass part: 60-85 parts of magnesium sulfate monohydrate and 15-40 parts of magnesium oxide; taking citric acid and/or diluted nitric acid as an acidic medium, and preparing an water-soluble chitosan solution with mass concentration being 0.1-5%. The produced product has the advantages of uniform particles, mellow shape and high intensity. The fertilizer can be chelated by water-soluble chitosan polyfunctional group, its salt has film moulding property, magnesium fertilizer particles can be uniformly released with quick action, intermediate action and long action, requirements of magnesium of crop during a whole fertility period can be fully satisfied, fertilizer efficiency is high, and economic benefit is obvious.
Description
Technical field
One belongs to fertilizer manufacture field, particularly plant particle magnesium fertilizer.
Background technology
China is one of country that magnesium resource reserves are the abundantest in the world, but there is great difference in north and south, because magnesium ion activity is higher, very easily be leached in the area that Precipitation of South China amount is larger and cause soil big area magnesium deficiency, and magnesium is the important component part making object inner chlorophyll, play an important role in plant nutrition, in recent years, along with using of NPK chemical fertilizer, crop yield also improves constantly, the magnesium quantity that plant carries off from soil also constantly increases, and soil magnesium is again less than effectively supplementing, add the reduction of soil organic matter content, the crystallized ability of metallic cation is significantly declined, crop magnesium deficiency phenomenon occurs successively in various places, especially in the area that southern rainfall amount is larger.
At present, the fertiliser containing magnesium product of domestic main use mainly contains: (1) magnesium sulfate monohydrate, and the oblique shape tiny for white or tiltedly column crystallization are the most frequently used benefit magnesium products of China, use-pattern is that soil base is executed, and its shortcoming is that solubleness is high, easily runs off, magnesium elements utilization ratio is low, mends magnesium limited efficiency.(2) magnesium hydroxide (brucite) is white amorphous powder containing magnesium.Be insoluble in water, be soluble in diluted acid and ammonium salt solution, extremely low by crop utilization rate in soil.(3) particle magnesium fertilizer, magnesium sulfate monohydrate and magnesium hydroxide is adopted to carry out granulation, obtained particle magnesium fertilizer, the problem with leaching can be absorbed by partial rcsponse, but it remains a kind of mixture of easy molten a kind of indissoluble magnesium compound in essence, multiple-effect slowly-releasing can not be accomplished, reach the target synchronous with Crop magnesium elements.
Summary of the invention
The object of the invention is the not enough problem overcoming above-mentioned particle magnesium fertilizer, provide a kind of new sustained release particle magnesium fertilizer, formula advantages of simple, can realize multiple-effect slowly-releasing, synchronous with Crop magnesium elements.Another object of the present invention is to provide a kind of manufacture method of new sustained release particle magnesium fertilizer, and complete processing is simple, is easy to process for processing, and product performance are stablized.
The present invention is achieved by the following scheme: a kind of new sustained release particle magnesium fertilizer, adopt magnesium sulfate monohydrate, magnesium oxide as powder, mix by corresponding proportion, under acidic medium condition, water-soluble chitosan is joined in acidic medium and dissolves, carry out polyreaction granulation, each raw materials quality mark is as follows:
Magnesium sulfate monohydrate: 60-85
Magnesium oxide: 15-40
Granulation liquid phase: 7-13
Described granulation liquid phase adopts in water-soluble chitosan acidic solution that to add magnesium sulfate monohydrate obtained with magnesian mixture; Wherein add water-soluble chitosan in acidic medium to be mass concentration be 0.5-5% citric acid and/or dilute nitric acid solution, being mixed with mass concentration is 0.1-5% water-soluble chitosan acidic solution; The mass ratio of magnesium sulfate monohydrate and magnesia mixture and water-soluble chitosan acidic solution is 0.5-5:10.
The manufacture method of a kind of new sustained release particle magnesium fertilizer of the present invention, comprises the following steps:
The first step, standby powder: magnesium oxide, magnesium sulfate monohydrate are crushed to more than 30 orders respectively, fully mixes in proportion by the magnesium oxide after pulverizing, sulfuric acid monohydrate magnesium raw material;
Second step, preparation acidic medium: get nitric acid and/or citric acid, preparation mass concentration is 0.5-5% acid solution, and in acid solution, add water-soluble chitosan, obtained mass concentration is 0.1-5% water-soluble chitosan acidic solution;
Get magnesium sulfate monohydrate and magnesia mixture 0.5-5 part joins in 10 parts of water-soluble chitosan acidic solutions, stir at 25-50 degree Celsius of lower constant temperature and react, the mixed solution reacted completely is as granulation liquid phase;
3rd step, granulation: by the powder mixed, progressively join in granulation disc, while add powder, limit continues to spray granulation liquid phase and carries out granulation, until particle reaches required particle diameter, Particle size requirements is 2-4mm;
4th step, aftertreatment: the particle after granulation carries out drying, cools, sieves obtained finished product.
In described second step, the mass concentration of acidic medium is 1%; Obtained water-soluble chitosan acidic solution mass concentration is 1%; Getting magnesium sulfate monohydrate joins in acidic solution with magnesium oxide 1:1 quality than 1 part, mixture, and 40 degrees Celsius of lower constant temperature stir and react, and the mixed solution reacted completely is as granulation liquid phase.
The present invention passes through magnesium sulfate monohydrate, magnesium oxide is pulverized and mixed, polyreaction granulation is carried out under the acidic water-soluble chitosan of certain temperature and magnesium ion mixed solution are liquid phase medium condition, wherein water-soluble chitosan is polyfunctional group long-chain organism, there is the characteristic of good chemical bonding and film forming, the magnesium ion of different shape is made can well to realize replacing, chelating, bonding, covered effect, finished product multiple-effect particle magnesium fertilizer, containing having immediate effect, middle effect, long-acting, active magnesium nutrient, simultaneously, product discharges in conversion process in soil, water-soluble chitosan possesses anti-microbial effect, root growth can be promoted, activating rhizosphere state, improve the concentration of root exudates, the abundant absorption of effective promotion magnesium nutrient and conversion, give full play to Magnesium Effects In Various Types, meet crop whole breeding time to magnesium nutrient demand, and grain graininess even, intensity is high, good fluidity, be easy to use.
Product of the present invention can ensure single-dose application, continue supply magnesium nutrient, overcome most of fertiliser containing magnesium on market not easily to absorb, easily run off, can not the common disadvantage of mechanized operation, lasting effective correction crop magnesium deficiency, that improves soil contains magnesium situation, its distinctive physicochemical character makes it have balanced, the lasting long-acting feature of magnesium elements release, crop whole breeding time can be met to the needs of magnesium nutrient, product of the present invention adds up release rate as following table one in soil, while reducing labour cost, effectively improve the yield and quality of crop.
Table one: multiple-effect particle magnesium fertilizer preparation (%)
accompanying drawing illustrates:
Fig. 1 be multiple-effect fertiliser containing magnesium and conventional fertiliser containing magnesium release profiles and crop in soil need fertile graphic representation.
embodiment:
Below in conjunction with specific embodiment, the present invention is described in further detail, but the present invention is not limited to specific embodiment.
Embodiment 1
A kind of new sustained release particle magnesium fertilizer, by following material quantity and manufacture method processing:
The first step, joins powder: take the magnesium sulfate monohydrate 786 kilograms being crushed to more than 30 orders, 90% 214 kilograms, content magnesium oxide, after reserving the mixture of preparation granulation liquid phase, mixes as powder using residue powder;
Second step, preparation acidic medium: getting nitric acid, to be mixed with mass concentration be 1% dilute nitric acid solution, 1 kg of water soluble chitosan being dissolved in obtained mass concentration in the dilute nitric acid solution of 100L preparation is the water-soluble chitosan acidic solution of 1%, then in water-soluble chitosan acidic solution, 20 kilograms of reserved powders mixed are added, under 30 degrees Celsius, constant temperature stirs and reacts, and the gained mixing solutions that reacts completely is granulation liquid phase;
3rd step, granulation: by the powder mixed, progressively joins in granulation disc, keeps 50 revs/min of rotating speeds, first infiltrates on a small quantity by liquid phase, while add powder, limit water spray soluble chitosan solution, carries out granulation, until particle reaches required particle diameter;
4th step, aftertreatment: the particle after granulation carries out drying, cools, sieves obtained finished product: MgO32%, water-soluble chitosan 0.1%, 2-4mm, intensity 2.2Kg.
Magnesium ion accumulative release rate following (table two) in soil in finished product: release profiles is shown in figure mono-.
Table two: multiple-effect particle magnesium fertilizer preparation (%)
Tobacco uses fertiliser containing magnesium application example:
The flue-cured tobacco field of Longyang District one, Baoshan, Yunnan city peasant household is chosen as manure trial ground in 2013, flue-cured tobacco was sowed at the beginning of 2013 5 months, gather at the beginning of 2013 10 months, multiple-effect particle magnesium fertilizer with contrast fertiliser containing magnesium and all make base fertilizer and use, every mu of 10kg, between breeding time, the Mg content of plant leaf is detected, detect three times altogether respectively at the Seedling Stage of tobacco, prosperous long-term, ripening stage; Harvesting time records output, uses the tobacco whole breeding time of multiple-effect particle magnesium fertilizer, and the concentration of blade magnesium is sufficient, does not occur magnesium deficiency symptom, robust plant, grows fine; And the tobacco leaf using contrast fertiliser containing magnesium obviously declines to later stage Mg content, and there is magnesium deficiency symptom in plant, and concrete data are as shown in following table three:
Table three: tobacco different times dry matter weight of leaf magnesium content and agronomic trait
Embodiment 2
A kind of new sustained release particle magnesium fertilizer, by following material quantity and manufacture method processing:
The first step, joins powder: take the magnesium sulfate monohydrate 673 kilograms being crushed to and taking and be crushed to more than 30 orders, 90% 327 kilograms, content magnesium oxide, after reserving the mixture of preparation granulation liquid phase, mixes as powder using residue powder;
Second step, preparation acidic medium: 1.8 kg of water soluble chitosans being dissolved in 100L mass concentration is obtained water-soluble chitosan acidic solution in 2% dilute nitric acid solution, then in water-soluble chitosan acidic solution, 20 kilograms of reserved powders mixed then are added, under 45 degrees Celsius, constant temperature stirs and reacts, and the gained mixing solutions that reacts completely is as granulation liquid phase;
3rd step, granulation: by the powder mixed, progressively joins in granulation disc, keeps 50 revs/min of rotating speeds, first infiltrates on a small quantity by liquid phase, while add powder, limit water spray soluble chitosan acidic solution, carries out granulation, until particle reaches required particle diameter;
4th step, aftertreatment: the particle after granulation carries out drying, cools, sieves obtained finished product: MgO39.63%, water-soluble chitosan 0.18%, 2-4mm, intensity 2.0Kg.
Fertiliser containing magnesium application example used by grape:
The inscription of Tie Shan street, Lvshunkou District, Daliang City of Liaoning Province is chosen along harvesting garden as manure trial ground in 2013, grape variety is Muscat Hamburg, multiple-effect particle magnesium fertilizer with contrast fertiliser containing magnesium and all make base fertilizer and use, every strain 50g, between breeding time, the Mg content of plant leaf is detected, detect three times altogether respectively at flowering period of grape, the phase of bearing fruit, collection period; Harvesting time records output, uses the grape whole breeding time of multiple-effect particle magnesium fertilizer, and the concentration of blade magnesium is sufficient, and plant key is strengthened, and leaf look dark green, and disease and pest is few, and fruit-setting rate is high, and fruit color is even, and fruit string does not occur magnesium deficiency symptom greatly; And the grape leave using contrast fertiliser containing magnesium obviously declines to later stage Mg content, and there is magnesium deficiency symptom in plant, and concrete data are as shown in following table four:
Table four: grape different times dry matter weight of leaf magnesium content and agronomic trait
Embodiment 3
A kind of new sustained release particle magnesium fertilizer, by following material quantity and manufacture method processing:
The first step, joins powder: take the magnesium sulfate monohydrate 821 kilograms being crushed to more than 30 orders, 90% 179 kilograms, content magnesium oxide, after reserving the mixture of preparation granulation liquid phase, mixes as powder using residue powder;
Second step, preparation acidic medium: 0.8 kg of water soluble chitosan being dissolved in 100L mass concentration is obtained water-soluble chitosan acidic solution in 1% dilute nitric acid solution, then in water-soluble chitosan acidic solution, 20 kilograms of reserved powders mixed then are added, under 40 degrees Celsius, constant temperature stirs and reacts, and the gained mixing solutions that reacts completely is as granulation liquid phase;
3rd step, granulation: by the powder mixed, progressively joins in granulation disc, keeps 50 revs/min of rotating speeds, first infiltrates on a small quantity by liquid phase, while add powder, limit water spray soluble chitosan solution, carries out granulation, until particle reaches required particle diameter;
4th step, aftertreatment: the particle after granulation carries out drying, cools, sieves obtained finished product: MgO29.4%, water-soluble chitosan 0.08%, 2-4mm, intensity 2.3Kg.
Fertiliser containing magnesium application example used by banana:
Pinghe County one, Zhangzhou City of Fujian Province peasant household banana garden is chosen as manure trial ground in 2013, banana variety is north, Taiwan any of several broadleaf plants, multiple-effect particle magnesium fertilizer with contrast fertiliser containing magnesium and all make base fertilizer and use, every strain 350g, between breeding time, the Mg content of plant leaf is detected, detect three times altogether respectively at flower bud phase of taking out of banana, the phase of bearing fruit, collection period; Harvesting time records output, and the banana plant key using multiple-effect particle magnesium fertilizer is strengthened, and leaf look dark green, false stem girth footpath, really refers to that length and rugosity have increase in various degree.And the ripening stage comparatively early, really refer to that length and rugosity have increase in various degree, disease and pest is less, and fruit quality is good, does not occur magnesium deficiency symptom; And the Leaf of banana using contrast fertiliser containing magnesium obviously declines to later stage Mg content, and there is magnesium deficiency symptom in plant, and concrete data are as shown in following table five:
Table five: banana different times dry matter weight of leaf magnesium content and agronomic trait
Claims (5)
1. a new sustained release particle magnesium fertilizer, is characterized in that: adopt magnesium sulfate monohydrate, magnesium oxide as powder, mix by corresponding proportion, under acidic medium condition, joined in acidic medium by water-soluble chitosan and dissolve, carry out polyreaction granulation, each raw materials quality number is as follows:
Magnesium sulfate monohydrate: 60-85
Magnesium oxide: 15-40
Granulation liquid phase: 7-13
Described granulation liquid phase adopts in water-soluble chitosan acidic solution that to add magnesium sulfate monohydrate obtained with magnesian mixture; Wherein add water-soluble chitosan in acidic medium to be mass concentration be 0.5-5% citric acid and/or dilute nitric acid solution, being mixed with mass concentration is 0.1-5% water-soluble chitosan acidic solution; The mass ratio of magnesium sulfate monohydrate and magnesia mixture and water-soluble chitosan acidic solution is 0.5-5:10.
2. a manufacture method for new sustained release particle magnesium fertilizer, is characterized in that: comprise the following steps:
The first step, standby powder: magnesium oxide, magnesium sulfate monohydrate are crushed to more than 30 orders respectively, fully mixes in proportion by the magnesium oxide after pulverizing, sulfuric acid monohydrate magnesium raw material;
Second step, preparation acidic medium: get nitric acid and/or citric acid, preparation mass concentration is 0.5-5% acid solution, and in acid solution, add water-soluble chitosan, obtained mass concentration is 0.1-5% water-soluble chitosan acidic solution;
Get magnesium sulfate monohydrate and part magnesia mixture 0.5-5 part joins in 10 parts of water-soluble chitosan acidic solutions, stir at 25-50 degree Celsius of lower constant temperature and react, the mixed solution reacted completely is as granulation liquid phase;
3rd step, granulation: by the powder mixed, progressively join in granulation disc, while add powder, limit continues to spray granulation liquid phase and carries out granulation, until particle reaches required particle diameter, Particle size requirements is 2-4mm;
4th step, aftertreatment: the particle after granulation carries out drying, cools, sieves obtained finished product.
3. the manufacture method of a kind of new sustained release particle magnesium fertilizer according to claim 2, is characterized in that: in described second step, the mass concentration of acidic medium is 1%.
4. the manufacture method of a kind of new sustained release particle magnesium fertilizer according to claim 2, is characterized in that: the mass concentration that described second step obtains water-soluble chitosan acidic solution is 1%.
5. the manufacture method of a kind of new sustained release particle magnesium fertilizer according to claim 2, it is characterized in that: described second step, getting magnesium sulfate monohydrate joins in 10 parts of water-soluble chitosan acidic solutions with magnesium oxide 1:1 quality than 1 part, mixture, 40 degrees Celsius of lower constant temperature stir and react, and the mixed solution reacted completely is as granulation liquid phase.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113461461A (en) * | 2021-08-17 | 2021-10-01 | 中国热带农业科学院南亚热带作物研究所 | Foliar application functional fertilizer and preparation method and application method thereof |
| CN111269724B (en) * | 2020-03-10 | 2021-12-24 | 中国科学院合肥物质科学研究院 | Preparation method of acidic soil remediation agent, prepared soil remediation agent and application |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50136287A (en) * | 1974-04-18 | 1975-10-29 | ||
| CN101967381A (en) * | 2009-07-28 | 2011-02-09 | 熊春宇 | Chitosan, compound biological agent of derivatives thereof as wells as preparation method and application thereof |
| CN104211449A (en) * | 2014-08-22 | 2014-12-17 | 泰安市西贝隆基生物科技有限公司 | Granular microbial agent and production method thereof |
-
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- 2014-12-30 CN CN201410839238.3A patent/CN104710235A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50136287A (en) * | 1974-04-18 | 1975-10-29 | ||
| CN101967381A (en) * | 2009-07-28 | 2011-02-09 | 熊春宇 | Chitosan, compound biological agent of derivatives thereof as wells as preparation method and application thereof |
| CN104211449A (en) * | 2014-08-22 | 2014-12-17 | 泰安市西贝隆基生物科技有限公司 | Granular microbial agent and production method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111269724B (en) * | 2020-03-10 | 2021-12-24 | 中国科学院合肥物质科学研究院 | Preparation method of acidic soil remediation agent, prepared soil remediation agent and application |
| CN113461461A (en) * | 2021-08-17 | 2021-10-01 | 中国热带农业科学院南亚热带作物研究所 | Foliar application functional fertilizer and preparation method and application method thereof |
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Application publication date: 20150617 |
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