CN100516004C - Blending controlled release urea BB fertilizer - Google Patents
Blending controlled release urea BB fertilizer Download PDFInfo
- Publication number
- CN100516004C CN100516004C CNB200510136749XA CN200510136749A CN100516004C CN 100516004 C CN100516004 C CN 100516004C CN B200510136749X A CNB200510136749X A CN B200510136749XA CN 200510136749 A CN200510136749 A CN 200510136749A CN 100516004 C CN100516004 C CN 100516004C
- Authority
- CN
- China
- Prior art keywords
- urea
- fertilizer
- component
- controlled release
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The invention relates to a controllable releasing urea BB fertilizer, which in detail a mixed long effective urea fertilizer, comprising three urea components A, B, and C; said A is normal urea, B and C are capsule urea added with urea-formaldehyde resin, the weight proportion of urea-formaldehyde resin in B and C are 2-5 % and 6-10% of that of urea respectively; the ratio by weight among A, B and C is 1-2: 2-3: 5-6. The invention is characterized by good effect, high utilization rate and simple process.
Description
Technical field
The present invention relates to thiourea slow release fertilizer, a kind of specifically blending controlled release urea BB fertilizer.
Background technology
Urea fertilizer has become indispensable solid nitrogen fertilizer in the agricultural, of many uses in agricultural, can not be substituted by other fertilizer, in solid nitrogenous fertilizer, hold pride of place on the consumption, and annual also sharp increase of consumption, urea is mainly used in the base fertilising of crop.Urea has some problems to need to be resolved hurrily on problem of fertilization, owing to have urase and nitrate reductase in the soil, after applying, urea changes into nitric nitrogen and ammonia-state nitrogen rapidly, can not all be absorbed by crop, can cause that like this soil alkalescence increases the murder by poisoning with nitrite and ammonia, also can cause gaseous losses, cause the urea fertilizer utilization ratio many about 40%.Owing to such reason, people begin one's study coated carbamide, sulfur coated urea, urea derivative, slow-release carbamide or the like, but the problem that exists is more, because the fertilizer that crop needs during growing is different, its release of above-mentioned urea can not be in full accord with the fertilizer requirement of crop.
Summary of the invention
The object of the present invention is to provide the high blending controlled release urea BB fertilizer of a kind of nitrogen utilization efficiency, this urea can reduce the loss of urea and the accumulation of its harmful product, can solve ureaclastic ammonia is kept in the soil for a long time, guarantee the fertilizer requirement in the crop whole growth growth course, early stage is few fertile, mid-term is fertilizer deficiency not, and the later stage is not taken off fertilizer, improves the utilization ratio of urea fertilizer.
In order to address the above problem, the technical solution used in the present invention is:
A kind of blending controlled release urea BB fertilizer, form by three kinds of urea component A, B, C blending, wherein component A is a common urea, and component B and component C are to add the coated carbamide that urea formaldehyde resin adhesive carries out coating behind the carbamide granulation, and the weight of urea-formaldehyde resin is the 2-5% of weight of urea among the component B; The weight of urea-formaldehyde resin is the 6-10% of weight of urea in the component C; Weight ratio between component A, component B and component C is 1-2: 2-3: 5-6.
Can also add phosphate fertilizer, potash fertilizer and other compound manure or composite fertilizer in the controlled release urea BB fertilizer that the present invention produces, make long-acting compound fertilizer;
Described phosphate fertilizer is phosphorous phosphate fertilizer such as diammonium phosphate, monoammonium phosphate, calcium superphosphate and/or fused(calcium magnesium)phosphate, and its addition is that the weight ratio of available nitrogen content (being total nitrogen) in available phosphorus content in the phosphate fertilizer (being Vanadium Pentoxide in FLAKES) and the controlled release urea BB fertilizer is 1-0.75: 0.25-0.4375; Described potash fertilizer is that Repone K, vitriolate of tartar and/or potassium magnesium sulfate etc. contain potassic fertilizer, its addition be in the potash fertilizer effectively in potassium content (being potassium oxide) and the controlled release urea BB fertilizer weight ratio of available nitrogen content (being total nitrogen) be 1-0.75: 0.25-0.4375; Described compound manure or composite fertilizer are for containing nitrogen (0-46.4%), Vanadium Pentoxide in FLAKES (0-46%), potassium oxide two yuan or three element fertilizers such as (0-60%), and its addition and controlled release urea BB fertilizer weight ratio are 1-0.25: 0.25-1.
The present invention has following advantage:
1. application effect is good.The urea fertilizer that the present invention produces is applicable to various farm crop, improves utilization rate of fertilizer more than 15%, volume increase 10%.Can be used as that base fertilizer is disposable to apply, need not topdress later on, saving of work and time is laborsaving to save money.
2. production technique is extremely simple.Production technique provided by the present invention very easily combines in the urea production process in modern times, on original urea production equipment basis, has increased the operation and the blending agitating procedure of urea formaldehyde resin adhesive.Processing method is simple, helps promoting the use of in chemical fertilizer industry is produced.
3. the utilization ratio height of urea fertilizer.The urea fertilizer that the present invention produces can reduce the loss of urea and the accumulation of its harmful product, can solve ureaclastic ammonia is kept in the soil for a long time, guarantee the fertilizer requirement in the crop whole growth growth course, early stage is few fertile, mid-term is fertilizer deficiency not, later stage is not taken off fertilizer, improves the utilization ratio of urea fertilizer.
Embodiment
Embodiment 1
A kind of blending controlled release urea BB fertilizer, form by three kinds of urea component A, B, C blending, wherein component A is a common urea, and component B and component C are to add the coated carbamide that urea formaldehyde resin adhesive carries out coating behind the carbamide granulation, and the weight of urea-formaldehyde resin is 2% of weight of urea among the component B; The weight of urea-formaldehyde resin is 6% of weight of urea in the component C; Is that 1: 2: 5 ratio is carried out blending with three kinds of component urea in the weight ratio between component A, component B and component C, promptly makes blending controlled release urea BB fertilizer;
Get 20 kilograms of above-mentioned blending controlled release urea BB fertilizers and join in 10 kilograms of 10 kilograms of the diammonium phosphate, Repone K, be mixed and base is executed in 1 mu of corn field, the contrast base imposes 30 kilograms of urea after executing 10 kilograms of 10 kilograms of diammonium phosphate, Repone K again.The corn yield of product of the present invention is 612.4 kilograms, and comparison saves fertile 33.33% according to volume increase 10.48%.
Embodiment 2
A kind of blending controlled release urea BB fertilizer, form by three kinds of urea component A, B, C blending, wherein component A is a common urea, and component B and component C are to add the coated carbamide that urea formaldehyde resin adhesive carries out coating behind the carbamide granulation, and the weight of urea-formaldehyde resin is 3.5% of weight of urea among the component B; The weight of urea-formaldehyde resin is 8% of weight of urea in the component C; Is that 1.5: 2.5: 5.5 ratio is carried out blending with three kinds of component urea in the weight ratio between component A, component B and component C, promptly makes blending controlled release urea BB fertilizer;
Get 20 kilograms of above-mentioned blending controlled release urea BB fertilizers and join in 10 kilograms of 10 kilograms of the diammonium phosphate, Repone K and base is executed in 1 mu of corn field, the contrast base imposes 30 kilograms of urea after executing 10 kilograms of 10 kilograms of diammonium phosphate, Repone K again.The corn yield of product of the present invention is 632.7 kilograms, and comparison saves fertile 33.33% according to volume increase 14.14%.
Embodiment 3
A kind of blending controlled release urea BB fertilizer, form by three kinds of urea component A, B, C blending, wherein component A is a common urea, and component B and component C are to add the coated carbamide that urea formaldehyde resin adhesive carries out coating behind the carbamide granulation, and the weight of urea-formaldehyde resin is 5% of weight of urea among the component B; The weight of urea-formaldehyde resin is 10% of weight of urea in the component C; Is that 2: 3: 6 ratio is carried out blending with three kinds of component urea in the weight ratio between component A, component B and component C, promptly makes blending controlled release urea BB fertilizer.
Get 20 kilograms of above-mentioned blending controlled release urea BB fertilizers and join in 10 kilograms of 10 kilograms of the diammonium phosphate, Repone K and base is executed in 1 mu of corn field, the contrast base imposes 30 kilograms of urea after executing 10 kilograms of 10 kilograms of diammonium phosphate, Repone K again.The corn yield of product of the present invention is 620.3 kilograms, and comparison saves fertile 33.33% according to volume increase 11.91%.
Claims (5)
1. blending controlled release urea BB fertilizer, it is characterized in that: form by three kinds of urea component A, B, C blending, wherein component A is a common urea, component B and component C are to add the coated carbamide that urea formaldehyde resin adhesive carries out coating behind the carbamide granulation, and the weight of urea-formaldehyde resin is the 2-5% of weight of urea among the component B; The weight of urea-formaldehyde resin is the 6-10% of weight of urea in the component C; Weight ratio between component A, component B and component C is 1-2: 2-3: 5-6.
2. according to the described blending controlled release urea BB fertilizer of claim 1, it is characterized in that: also add phosphate fertilizer, potash fertilizer and other compound manure or composite fertilizer in the described controlled release urea BB fertilizer.
3. according to the described blending controlled release urea BB fertilizer of claim 2, it is characterized in that: described phosphate fertilizer is diammonium phosphate, monoammonium phosphate, calcium superphosphate and/or fused(calcium magnesium)phosphate, its addition be in the phosphate fertilizer in available phosphorus content and the controlled release urea BB fertilizer weight ratio of available nitrogen content be 1-0.75: 0.25-0.4375.
4. according to the described blending controlled release urea BB fertilizer of claim 2, it is characterized in that: described potash fertilizer is Repone K, vitriolate of tartar and/or potassium magnesium sulfate, its addition be in the potash fertilizer effectively in potassium content and the controlled release urea BB fertilizer weight ratio of available nitrogen content be 1-0.75: 0.25-0.4375.
5. according to the described blending controlled release urea BB fertilizer of claim 2, it is characterized in that: described compound manure or composite fertilizer are two yuan or three element fertilizers that contain nitrogen, phosphorus, potassium, and its addition and controlled release urea BB fertilizer weight ratio are 1-0.25: 0.25-1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510136749XA CN100516004C (en) | 2005-12-29 | 2005-12-29 | Blending controlled release urea BB fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510136749XA CN100516004C (en) | 2005-12-29 | 2005-12-29 | Blending controlled release urea BB fertilizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1990430A CN1990430A (en) | 2007-07-04 |
| CN100516004C true CN100516004C (en) | 2009-07-22 |
Family
ID=38213006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200510136749XA Expired - Fee Related CN100516004C (en) | 2005-12-29 | 2005-12-29 | Blending controlled release urea BB fertilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100516004C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101519331B (en) * | 2009-04-09 | 2012-07-04 | 李财 | Slow-release high-yield crop fertilizer |
| CN104609942B (en) * | 2014-12-24 | 2017-09-15 | 青岛农业大学 | A kind of special slow-release or control-release fertilizer composition of summer corn and preparation method and application |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1263688A1 (en) * | 1984-04-26 | 1986-10-15 | Ионавское Ордена "Знак Почета" Производственное Объединение "Азот" Им.Хху Съезда Кпсс | Method of producing free-flowing carbamide |
| CN1569769A (en) * | 2003-07-21 | 2005-01-26 | 南京大学 | Coated slow-release urea and its preparation method |
-
2005
- 2005-12-29 CN CNB200510136749XA patent/CN100516004C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1263688A1 (en) * | 1984-04-26 | 1986-10-15 | Ионавское Ордена "Знак Почета" Производственное Объединение "Азот" Им.Хху Съезда Кпсс | Method of producing free-flowing carbamide |
| CN1569769A (en) * | 2003-07-21 | 2005-01-26 | 南京大学 | Coated slow-release urea and its preparation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1990430A (en) | 2007-07-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102153424B (en) | Novel method for preparing humic acid urea slow release fertilizer | |
| CN101844945B (en) | Organic liquid compound fertilizer and preparation method thereof | |
| CN1084320C (en) | Long-lasting special-purpose compound mixed fertilizer for corn and rice | |
| CN103288565B (en) | The long-acting potassium sulfate type Chemical Mixed Fertilizer that a kind of sugarcane is special | |
| CN102260111A (en) | Method for preparing humic acid-urea complex in aqueous medium | |
| CN105669297A (en) | Humic acid-containing complete-element water soluble fertilizer, and preparation method and application thereof | |
| CN106631290A (en) | Special anthurium andraeanum linden water-soluble fertilizer | |
| CN102786356A (en) | Special long-acting fertilizer for rice | |
| CN106831053A (en) | A kind of production method of graininess, function intensified type phosphorus containing magnesium ammonium | |
| CN104163670A (en) | Method for producing tobacco special fertilizer | |
| CN103739406A (en) | Humic acid chelated boron, magnesium, zinc and iron fertilizer and preparation method thereof | |
| CN100516004C (en) | Blending controlled release urea BB fertilizer | |
| CN104529651B (en) | A kind of charcoal base urea-formaldehyde fertilizer and preparation method thereof | |
| CN101869019A (en) | Method for fertilizing and topdressing cherry tomato | |
| CN110550988A (en) | Complexing product of mineral humic acid and inorganic salt fertilizer and preparation method thereof | |
| CN102206107A (en) | Production method for tobacco-specific fertilizer | |
| CN104987222A (en) | Sustained-release synergist for multifunctional synergistic nitrogen fertilizer | |
| CN101993274A (en) | Corn total effect compound fertilizer and preparation method | |
| CN107935664A (en) | A kind of water-soluble fertilizer and preparation method thereof | |
| CN102584392A (en) | Manihot esculenta Crantz compound fertilizer and preparation method thereof | |
| CN103159573A (en) | Potassium-fulvate-type sustained-control-release long-lasting urea ammonia | |
| CN104926418A (en) | Cotton cultivation fertilizer and preparation method and application thereof | |
| CN108947742A (en) | A kind of floating type special type water-soluble fertilizer and preparation method thereof | |
| CN103553752A (en) | Acid containing liquid drop irrigation fertilizer for potatoes as well as preparation method thereof | |
| CN102491858A (en) | Method for manufacturing urea-based nitrate slow-releasing compound fertilizer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090722 Termination date: 20101229 |