CN103086802A - Natural gradable coated slow-released fertilizer and preparation method thereof - Google Patents
Natural gradable coated slow-released fertilizer and preparation method thereof Download PDFInfo
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- CN103086802A CN103086802A CN2013100582525A CN201310058252A CN103086802A CN 103086802 A CN103086802 A CN 103086802A CN 2013100582525 A CN2013100582525 A CN 2013100582525A CN 201310058252 A CN201310058252 A CN 201310058252A CN 103086802 A CN103086802 A CN 103086802A
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Abstract
The invention discloses a natural gradable coated slow-released fertilizer and a preparation method thereof. The coated slow-released fertilizer is formed by wrapping a coating on the surface of granulated fertilizer, wherein the coating is waste edible mushroom cakes, and accounts for 5 to 50 percent of the total weight. The preparation method of the coated slow-released fertilizer comprises the following steps of: dissolving the waste edible mushroom cakes in an ethanol/diethyl ether mixed solvent to prepare a coating liquid, wherein the waste edible mushroom cakes in the coating liquid accounts for 2 to 20 percent of the weight of the coating liquid, and the ethanol/diethyl ether mixed solvent accounts for 20 to 80 percent of the weight of the coating liquid; applying the coating liquid on the surface of the granulated fertilizer; and recycling the solvent. According to the coated slow-released fertilizer and the preparation method, fertilizer can be controlled to slowly release in the soil by the adopting the coating material, and can be quickly biodegraded in the soil after the fertilizer is released completely in the soil.
Description
Technical field
The present invention relates to the production field of slow-release fertilizer, specifically film-coated and slow release fertilizer of a kind of natural degradable and preparation method thereof.
Background technology
China's chemical fertilizer consumption amount accounts for 20%～30% of world Fertilizer total quantity consumed, ranks first in the world.Developed country's chemical fertilizer this season utilization ratio average out to 50%～60%, China's chemical fertilizer this season utilization ratio are only on average 30%～35%.The loss waste of macronutrient not only brings huge financial loss to society, but also can cause serious environmental pollution.At present, along with the continuous increase of fertilizer amount, devote exclusive attention to output and lay equal stress on both quality and quantity at agricultural-food, and under the requirement of eco-friendly multiple target, the modification problem of fertilizer just seems even more important.
The appearance of slow release fertilizer has improved utilization rate of fertilizer, is conducive to environmental contamination reduction, guarantees grain security, has also satisfied peasant's actual demand.Coated slow release fertilizer is take granular chemical fertilizer as core; the top layer applies inorganic substance or the organic polymer of one deck low water solubility or microsolubility; change the stripping property of chemical fertilizer nutrient, extend or the release of control fertilizer nutrient, make the supply of soil nutrient and crop need the fertile new-type fertilizer formulation that requires coordination.The kind of coated slow release fertilizer, divide from coated fertilizer, can be divided into inorganics coated fertilizer and organic polymer coated fertilizer, the former majority is to contain the mineral manure of certain nutrient or soil conditioner and so on material, and the latter includes organic synthesis thing of organic polymer, low water solubility or insoluble etc. as coated fertilizer.But present ubiquitous problem is that the nutrient slowly-released effect of inorganic coating is relatively poor, and organic polymer coating price is higher, and the degraded of film material is slower.
Discarded edible mushroom grouts and discarded food oils are Biodegradable material, can thoroughly solve the Soil Environmental Pollution that is caused by coating.
Summary of the invention
The invention provides film-coated and slow release fertilizer of a kind of natural degradable and preparation method thereof, solve the problem that existing coated slow release fertilizer slow release effect is relatively poor and degraded is slower.
The film-coated and slow release fertilizer of this natural degradable of the present invention be granulated fertilizer be coated with one deck coating, this coating is the discarded edible mushroom grouts, and this coating accounts for 5%～50% of gross weight, is preferably 10%～20%, the best is 15%.
Further improvement as the film-coated and slow release fertilizer of this natural degradable of the present invention contains the discarded food oils that account for coating weight 0%～50% in this coating, the best is 25%.
The preparation method of the film-coated and slow release fertilizer of this natural degradable of the present invention is following steps:
A, the discarded edible mushroom grouts are dissolved in ethanol/ether mixed solvent, be mixed with parcel liquid, discarded edible mushroom grouts in this parcel liquid account for 2%～20% of parcel liquid weight, optimum is 10%～20%, the best is 15%, in this ethanol/ether mixed solvent, ethanol accounts for 20%～80% of parcel liquid weight, and optimum is 40%～60%, and the best is 50%;
B, will wrap up the surface that liquid spreads upon granulated fertilizer;
C, reclaim solvent, namely make the film-coated and slow release fertilizer of natural degradable.
Preparation method as the film-coated and slow release fertilizer of this natural degradable of the present invention further improves, also be added with the discarded food oils that account for coating weight 0%～50% in parcel liquid, or adding the discarded food oils that account for coating weight 0%～50% in the process of smearing, the best is 25%.
Film-coated and slow release fertilizer of this natural degradable provided by the invention and preparation method thereof, its coated fertilizer that adopts can be controlled fertilizer and slowly discharge in soil, and until fertilizer discharge in soil complete after, can very fast biological degradation in soil, overcoming existing defective in prior art, thereby reach the demand of Sustainable development.
Embodiment
Embodiment one:
The discarded edible mushroom grouts are dissolved in ethanol/ether (ethanol: ether=1: 2) in mixed solvent, be mixed with the solution of 4% (weight), as parcel liquid; Repeatedly smear on the granular urea fertilizer surface, add discarded food oils as additive in the process of smearing; Reclaim solvent, discarded edible mushroom grouts and discarded food oils namely obtain coated slow release fertilizer at the fertiliser granulates surface filming.Wherein coating accounts for 25% of gross weight, and discarded food oils account for 15% of coating weight.
Embodiment two:
The discarded edible mushroom grouts are dissolved in ethanol/ether (ethanol: ether=1: 5) in mixed solvent, be mixed with the solution of 2% (weight), as parcel liquid; Repeatedly smear on the granular urea fertilizer surface, add discarded food oils as additive in the process of smearing; Reclaim solvent, discarded edible mushroom grouts and discarded food oils namely obtain coated slow release fertilizer at the fertiliser granulates surface filming.Wherein coating accounts for 10% of gross weight, and discarded food oils account for 40% of coating weight.
Claims (4)
1. the film-coated and slow release fertilizer of a natural degradable, granulated fertilizer be coated with one deck coating, it is characterized in that: described coating is the discarded edible mushroom grouts, and described coating accounts for 5%～50% of gross weight.
2. the film-coated and slow release fertilizer of a kind of natural degradable according to claim 1, is characterized in that: contain the discarded food oils that account for coating weight 0%～50% in described coating.
3. the preparation method of the film-coated and slow release fertilizer of a natural degradable is characterized in that making as follows:
A, the discarded edible mushroom grouts are dissolved in ethanol/ether mixed solvent, are mixed with parcel liquid, the discarded edible mushroom grouts in this parcel liquid account for 2%～20% of parcel liquid weight, and in this ethanol/ether mixed solvent, ethanol accounts for 20%～80% of parcel liquid weight;
B, will wrap up the surface that liquid spreads upon granulated fertilizer;
C, recovery solvent namely get film-coated and slow release fertilizer.
4. the preparation method of the film-coated and slow release fertilizer of a kind of natural degradable according to claim 3, it is characterized in that: also be added with the discarded food oils that account for coating weight 0%～50% in described parcel liquid, or add the discarded food oils that account for coating weight 0%～50% in the process of smearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100582525A CN103086802A (en) | 2013-02-03 | 2013-02-03 | Natural gradable coated slow-released fertilizer and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013100582525A CN103086802A (en) | 2013-02-03 | 2013-02-03 | Natural gradable coated slow-released fertilizer and preparation method thereof |
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| CN103086802A true CN103086802A (en) | 2013-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013100582525A Pending CN103086802A (en) | 2013-02-03 | 2013-02-03 | Natural gradable coated slow-released fertilizer and preparation method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104030836A (en) * | 2014-06-30 | 2014-09-10 | 沈阳四兄弟肥业有限公司 | Biodegradable slow-release fertilizer and a preparation method thereof |
| CN105085098A (en) * | 2015-08-28 | 2015-11-25 | 李志山 | Controlled-release fertilizer for pumpkins and preparation method for controlled-release fertilizer |
| CN105130690A (en) * | 2015-08-28 | 2015-12-09 | 李志山 | Chili-controlled release fertilizer and preparation method thereof |
| CN105198603A (en) * | 2015-09-29 | 2015-12-30 | 广西百润源农业有限公司 | Pointed-tail Chinese cabbage controlled-release fertilizer and preparation method thereof |
| CN105198604A (en) * | 2015-09-29 | 2015-12-30 | 广西百润源农业有限公司 | Fragrant taro controlled-release fertilizer and preparation method thereof |
| CN105198598A (en) * | 2015-09-29 | 2015-12-30 | 广西百润源农业有限公司 | Muskmelon controlled-release fertilizer and preparation method thereof |
| CN105237251A (en) * | 2015-08-28 | 2016-01-13 | 李志山 | Release-control fertilizer for brassica juncea and preparation method thereof |
| CN105237138A (en) * | 2015-08-28 | 2016-01-13 | 李志山 | Release-controlled fertilizer for Chinese yam and preparation method thereof |
| CN105237252A (en) * | 2015-08-28 | 2016-01-13 | 李志山 | Tomato release-controllable fertilizer and preparation method thereof |
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| CN1137031A (en) * | 1996-01-13 | 1996-12-04 | 西南林学院 | Slow release fertilizer and preparing process thereof |
| CN1465552A (en) * | 2002-07-04 | 2004-01-07 | �Ϻ���ͨ��ѧ | Film-coated slow-released fertilizer and preparation process thereof |
| CN101062878A (en) * | 2006-04-30 | 2007-10-31 | 中国科学院过程工程研究所 | Degradable natural organic matter bundled slow-releasing fertilizer and preparation method and usage thereof |
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| CN102584444A (en) * | 2012-02-15 | 2012-07-18 | 何春林 | Method for preparing non-fermentative composite organic fat fertilizer |
| CN102617249A (en) * | 2012-03-31 | 2012-08-01 | 山东喜丰田生态肥业有限公司 | Novel polysaccharide gel water retaining and slow release fertilizer |
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2013
- 2013-02-03 CN CN2013100582525A patent/CN103086802A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1137031A (en) * | 1996-01-13 | 1996-12-04 | 西南林学院 | Slow release fertilizer and preparing process thereof |
| CN1465552A (en) * | 2002-07-04 | 2004-01-07 | �Ϻ���ͨ��ѧ | Film-coated slow-released fertilizer and preparation process thereof |
| CN101062878A (en) * | 2006-04-30 | 2007-10-31 | 中国科学院过程工程研究所 | Degradable natural organic matter bundled slow-releasing fertilizer and preparation method and usage thereof |
| WO2011120035A1 (en) * | 2010-03-26 | 2011-09-29 | Cornell University | Plant propagation medium and methods of making and using it |
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| CN102584444A (en) * | 2012-02-15 | 2012-07-18 | 何春林 | Method for preparing non-fermentative composite organic fat fertilizer |
| CN102617249A (en) * | 2012-03-31 | 2012-08-01 | 山东喜丰田生态肥业有限公司 | Novel polysaccharide gel water retaining and slow release fertilizer |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104030836A (en) * | 2014-06-30 | 2014-09-10 | 沈阳四兄弟肥业有限公司 | Biodegradable slow-release fertilizer and a preparation method thereof |
| CN104030836B (en) * | 2014-06-30 | 2016-05-18 | 沈阳四兄弟肥业有限公司 | A kind of degradable controlled release type fertilizer and preparation method thereof |
| CN105085098A (en) * | 2015-08-28 | 2015-11-25 | 李志山 | Controlled-release fertilizer for pumpkins and preparation method for controlled-release fertilizer |
| CN105130690A (en) * | 2015-08-28 | 2015-12-09 | 李志山 | Chili-controlled release fertilizer and preparation method thereof |
| CN105237251A (en) * | 2015-08-28 | 2016-01-13 | 李志山 | Release-control fertilizer for brassica juncea and preparation method thereof |
| CN105237138A (en) * | 2015-08-28 | 2016-01-13 | 李志山 | Release-controlled fertilizer for Chinese yam and preparation method thereof |
| CN105237252A (en) * | 2015-08-28 | 2016-01-13 | 李志山 | Tomato release-controllable fertilizer and preparation method thereof |
| CN105198603A (en) * | 2015-09-29 | 2015-12-30 | 广西百润源农业有限公司 | Pointed-tail Chinese cabbage controlled-release fertilizer and preparation method thereof |
| CN105198604A (en) * | 2015-09-29 | 2015-12-30 | 广西百润源农业有限公司 | Fragrant taro controlled-release fertilizer and preparation method thereof |
| CN105198598A (en) * | 2015-09-29 | 2015-12-30 | 广西百润源农业有限公司 | Muskmelon controlled-release fertilizer and preparation method thereof |
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Application publication date: 20130508 |