CN102838420B - Selenium-rich slow release coated urea - Google Patents
Selenium-rich slow release coated urea Download PDFInfo
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- CN102838420B CN102838420B CN 201210365134 CN201210365134A CN102838420B CN 102838420 B CN102838420 B CN 102838420B CN 201210365134 CN201210365134 CN 201210365134 CN 201210365134 A CN201210365134 A CN 201210365134A CN 102838420 B CN102838420 B CN 102838420B
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Abstract
The invention discloses selenium-rich slow release coated urea, which belongs to the field of fertilizers and solves the technical problem of low utilization rate of urea nitrogen in the conventional fertilizer. The selenium-rich slow release coated urea is a particulate matter formed by wrapping fertilizer core in bentonite serving as a covering material by taking cold-soluble polyving akohol as an adhesive, wherein the mass of the bentonite is 2-5 percent of that of the fertilizer core; and the fertilizer core consists of the following components in parts by weight: 15-35 parts of urea, 5-10 parts of antibacterial peptide and 10-20 parts of selenium chelate. According to the selenium-rich slow release coated urea, the absorption and utilization effect of the crops on nitrogen can be obviously improved, the adsorption of plants to the nitrogen and other nutrient elements is enhanced, the utilization rate of the fertilizer is obviously improved and is improved to 30-40 percent, and the amount of the used fertilizer is reduced by 20-33 percent. By using the selenium-rich slow release coated urea, the yield of grain can be increased by 15-30 percent, the yield of vegetables is increased by 20-50 percent, and the yield of economic crops is increased by over 20 percent under the condition of an equal amount of fertilizer.
Description
Technical field
The invention belongs to fertilizer field, be specifically related to a kind of rich selenium release-controlled coated urea.
Background technology
Urea efficiency is high, and the time length is long, and fertilizer is steady, and spoiled soil not, be kind comparatively desirable in current chemical nitrogen fertilizer again.The common urea of current industrial agricultural application is instant fertilizer, and fertilizer efficiency period is short, and N-fertilizer efficiency is low, and the overall utilization of blood urea nitrogen only has 30%～35%.
Summary of the invention
The present invention will solve the low technical problem of utilization ratio of the blood urea nitrogen in existing fertilizer; And provide a kind of rich selenium release-controlled coated urea.
In the present invention a kind of rich selenium release-controlled coated urea be take cold cut property polyethylene alcohol as binding agent, take wilkinite as coating material by the particulate matter formed among fertile core parcel; Described wilkinite is 2%～5% of fertile core quality, and fertile core comprises by ratio of weight and the number of copies 15～35 parts of urea, 5～10 parts of antibacterial peptides and 10～20 parts of chelating selenium and forms.
Described fertile core also comprises 25～40 parts of diammonium phosphate, 3～10 parts of ferric sulfate and 15～30 parts of calcium sulfate by ratio of weight and the number of copies.
Fertilizer of the present invention utilizes granulating disc to make.By granulations such as urea, antibacterial peptide and chelating selenium, then with wilkinite, be placed in granulating disc, spray cold cut property polyethylene alcohol, the granulation post-drying obtains rich selenium release-controlled coated urea.
Fertilizer of the present invention can effectively extend the fertilizer efficiency usage period, and the total validity period of fertilizer arrives 180～260 days.Fertilizer of the present invention needs nutritive ingredient to have extremely strong chelating function to plants, and effectively enrichment Nitrogen In Soils, phosphorus, calcium, potassium and trace element absorb for plant.
Fertilizer of the present invention can significantly improve the absorb effect of crop to nitrogen, strengthens the absorbed dose of plant to nitrogen and other nutritive element, significantly improves the utilization ratio of fertilizer, and utilization rate of fertilizer brings up to 30%～40%, reduces fertilizer amount 20%～33%.
Fertilizer of the present invention has the growth that promotes root system, and healthy and strong plant significantly strengthens the several functions of disease-resistant, drought resisting, resistant to lodging and short precocity.
Use the present invention under the fertilizer condition of equivalent, can make increases in grain production 15%～30%, vegetables volume increase 20%～50%, cash crop increase more than 20%.
Embodiment
Embodiment one: in present embodiment a kind of rich selenium release-controlled coated urea be take cold cut property polyethylene alcohol as binding agent, take wilkinite as coating material by the particulate matter formed among fertile core parcel; Described wilkinite is 2%～5% of fertile core quality, and fertile core comprises by ratio of weight and the number of copies 15～35 parts of urea, 5～10 parts of antibacterial peptides and 10～20 parts of chelating selenium and forms.
The total validity period of the described fertilizer of present embodiment arrives 180～260 days.The present embodiment utilization rate of fertilizer brings up to 30%～40%, reduces fertilizer amount 20%～33%.Use present embodiment under the fertilizer condition of equivalent, can make increases in grain production 15～30%, vegetables volume increase 20%～50%, cash crop increase more than 20%.
Embodiment two: present embodiment is different from embodiment one: described wilkinite is 3% of fertile core quality.Other is identical with embodiment one.
Embodiment three: present embodiment is different from embodiment one: described wilkinite is 3.5% of fertile core quality.Other is identical with embodiment one.
Embodiment four: present embodiment is different from embodiment one: described wilkinite is 4% of fertile core quality.Other is identical with embodiment one.
Embodiment five: present embodiment is different from one of embodiment one to four: described bentonitic grain graininess is 200～400 orders.Other is identical with one of embodiment one to four.
Embodiment six: present embodiment is different from one of embodiment one to four: described bentonitic grain graininess is 300 orders.Other is identical with one of embodiment one to four.
Embodiment seven: present embodiment is different from one of embodiment one to six: described fertile core also comprises 25～40 parts of diammonium phosphate, 3～10 parts of ferric sulfate and 15～30 parts of calcium sulfate by ratio of weight and the number of copies.Other is identical with one of embodiment one to six.
Embodiment one: in present embodiment a kind of rich selenium release-controlled coated urea be take cold cut property polyethylene alcohol as binding agent, take wilkinite as coating material by the particulate matter formed among fertile core parcel; Described wilkinite is 3.5% of fertile core quality, and fertile core is comprised of 20 parts of urea, 10 parts of antibacterial peptides and 15 parts of chelating selenium by ratio of weight and the number of copies.
Produce rich selenium release-controlled coated urea by present embodiment, on corn, paddy rice, soybean to use result as follows:
Unit: mu
Claims (7)
1. a rich selenium release-controlled coated urea, it is characterized in that a kind of rich selenium release-controlled coated urea be take cold cut property polyethylene alcohol as binding agent, take wilkinite as coating material by the particulate matter formed among fertile core parcel; Described wilkinite is 2%～5% of fertile core quality, and fertile core comprises 15～35 parts of urea, 5～10 parts of antibacterial peptides and 10～20 parts of chelating selenium by ratio of weight and the number of copies.
2. a kind of rich selenium release-controlled coated urea according to claim 1, is characterized in that described wilkinite is 3% of fertile core quality.
3. a kind of rich selenium release-controlled coated urea according to claim 1, is characterized in that described wilkinite is 3.5% of fertile core quality.
4. a kind of rich selenium release-controlled coated urea according to claim 1, is characterized in that described wilkinite is 4% of fertile core quality.
5. a kind of rich selenium release-controlled coated urea according to claim 1, is characterized in that described bentonitic grain graininess is 200～400 orders.
6. a kind of rich selenium release-controlled coated urea according to claim 1, is characterized in that described bentonitic grain graininess is 300 orders.
7. according to the described a kind of rich selenium release-controlled coated urea of any one claim in claim 1-6, it is characterized in that described fertile core also comprises 25～40 parts of diammonium phosphate, 3～10 parts of ferric sulfate and 15～30 parts of calcium sulfate by ratio of weight and the number of copies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210365134 CN102838420B (en) | 2012-09-27 | 2012-09-27 | Selenium-rich slow release coated urea |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210365134 CN102838420B (en) | 2012-09-27 | 2012-09-27 | Selenium-rich slow release coated urea |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102838420A CN102838420A (en) | 2012-12-26 |
| CN102838420B true CN102838420B (en) | 2013-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210365134 Active CN102838420B (en) | 2012-09-27 | 2012-09-27 | Selenium-rich slow release coated urea |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104045484B (en) * | 2014-05-28 | 2016-03-02 | 马鞍山市心洲葡萄专业合作社 | Organic coated fertilizer of functional biological of a kind of economic environmental protection and preparation method thereof |
| CN104447030A (en) * | 2014-12-14 | 2015-03-25 | 青岛锐志农业技术服务有限公司 | Special efficient compound fertilizer for rice |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2318702A1 (en) * | 1999-09-17 | 2001-03-17 | Tamie Nasu | Fertilizer with a chelate element |
| CN101353281B (en) * | 2008-08-28 | 2012-10-10 | 吴成祥 | Functional urea and preparation thereof |
| US8758474B2 (en) * | 2010-03-25 | 2014-06-24 | Nft Industries, Llc | Urea fertilizer containing central volatilization inhibitor particles to reduce release of ammonia and processes for making same |
| CN102675002A (en) * | 2012-06-04 | 2012-09-19 | 史丹利化肥股份有限公司 | Efficient multifunctional selenium-rich fertilizer and production process thereof |
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| CN102838420A (en) | 2012-12-26 |
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