CN102746067A - Controlled release nitrogen-containing controlled release fertilizer special for sugarcane - Google Patents
Controlled release nitrogen-containing controlled release fertilizer special for sugarcane Download PDFInfo
- Publication number
- CN102746067A CN102746067A CN201210264431XA CN201210264431A CN102746067A CN 102746067 A CN102746067 A CN 102746067A CN 201210264431X A CN201210264431X A CN 201210264431XA CN 201210264431 A CN201210264431 A CN 201210264431A CN 102746067 A CN102746067 A CN 102746067A
- Authority
- CN
- China
- Prior art keywords
- fertilizer
- release
- sugarcane
- polymer coated
- reacted
- 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.)
- Pending
Links
Images
Abstract
The invention belongs to the technical field of plant cultivation and relates to a controlled release nitrogen-containing controlled release fertilizer special for sugarcane. The controlled release fertilizer is prepared through even mixing of reaction film-forming polymer coated urea with a 180-day release period, reaction film-forming polymer coated urea with a 120-day release period, reaction film-forming polymer coated urea with a 60-day release period, urea, a phosphate fertilizer, a potash fertilizer, zinc sulfate and magnesium sulfate. According to the controlled release fertilizer, single controlled release fertilizers with different release periods and part of quick-acting fertilizers are compounded according to nutrient absorption laws of the sugarcane, the fertilizer efficiency is long, nutrient release accords with absorption requirements of the sugarcane, the nutrient requirement of the sugarcane in the growing period is satisfied through fertilization once, the foundation is laid for high yield of the sugarcane, and a good effect is achieved through field experiments.
Description
Technical field
The invention belongs to field of plant growing technology, it is fertile to relate to a kind of controlled release, specifically is a kind of sugarcane special-purpose control-release fertilizer that contains controlled release nitrogen.
Background technology
Sugarcane is the main sugar crop of China; China's sugarcane acreage occupies the 3rd in the world; Account for the long-term sugared charge level of China long-pending more than 85%, output of sugar accounts for more than 90% of sugar total amount, the sugarcane industry has become the mainstay of main producing region Economic development and the main source that the peasant advances to increase income.Sugarcane still is a kind of bioenergy crop of high yield, and its biological yield is high, and sugar degree is high, not only can supply sugaring, but direct production alcohol also.Along with the continuous development of science and technology, as the important energy crop, sugarcane has very big development potentiality.
The sugarcane plant is tall and big, needs fertile morely, and the suction in sugarcane time of infertility is dynamically fertile, and total trend is: few centre, two is many.Simultaneously, sugarcane is long breeding time, from the rudiment to the technical maturity, needs about 10-12 month, can't topdress after the later stage plant envelope row.Producing at present and going up main fertilizer variety is the composite fertilizer and the urea of quick-acting, and it dissolves in soil soon, and soil solution concentration is improved rapidly; But the aftereffect time is short, can't satisfy the needs of sugarcane production later stage nutrient, and; If before plantation, once a large amount of fertilizer is applied near the root district, can cause that nutrient density is too high in the soil solution, " burning root " phenomenon appears; Also can aggravate soil simultaneously to nutrient ionic fixed action, make nutrient lose validity, reduce utilization rate of fertilizer sugarcane; Therefore in the breeding cycle of sugarcane, need topdress 2～3 times, repeatedly fertilising increases labour cost, consumes great amount of manpower and material resources; Peasant's benefit descends, because utilization rate of fertilizer is low, causes very big waste simultaneously.
Release and release control fertilizer is to realize that nutrient discharges and the synchronous new-type fertilizer of crop absorption, is to alleviate the high-tech product that nitrogenous fertilizer pollutes, and has become one of developing direction of fertilizer research.
Summary of the invention
The purpose of this invention is to provide a kind of sugarcane special-purpose control-release fertilizer that contains controlled release nitrogen; Law of nutritive absorption according to sugarcane carries out single kind controlled release fertilizer and the part quick-acting fertilizer that difference discharges the period composite; Be that a kind of fertilizer efficiency is long, nutrient discharges and meets the special-purpose control-release fertilizer that sugarcane absorbs requirement again, single fertilization satisfies the nutrient demand of sugarcane production phase, for the sugarcane high yield lays the foundation; Through field experiment, obtained effect preferably.
The technical scheme that the present invention adopted:
A kind of sugarcane special-purpose control-release fertilizer that contains controlled release nitrogen; Be to be that 180 days be reacted into membrane polymer coated carbamide, release period is that 120 days be reacted into membrane polymer coated carbamide, release period is that 60 days be reacted into membrane polymer coated carbamide, urea, phosphate fertilizer, potash fertilizer, zinc sulfate and sal epsom makes through mixing by release period, wherein the parts by weight of each component are by weight:
Release period be 180 days be reacted into 80～160 parts of membrane polymer coated carbamides;
Release period be 120 days be reacted into 80～160 parts of membrane polymer coated carbamides;
Release period be 60 days be reacted into 30～100 parts of membrane polymer coated carbamides;
20～100 parts in urea;
100～200 parts in phosphate fertilizer;
400～500 parts in potash fertilizer;
1～15 part in zinc sulfate;
1～15 part in sal epsom;
Said phosphate fertilizer is diammonium phosphate or monoammonium phosphate; Said potash fertilizer is vitriolate of tartar or Repone K.
Above raw material is the commercially available prod, and wherein following raw material is that China Bluechemical Ltd,'s product is sold.
Release period is that 180 days the membrane polymer coated carbamide that is reacted into is meant that fertilizer releasing period is 180 days, and model is PCU180 (43-0-0).Release period is that 120 days the membrane polymer coated carbamide that is reacted into is meant that the fertilizer nutrient release period is 120 days, and model is PCU120 (43-0-0).Release period is that 60 days the membrane polymer coated carbamide that is reacted into is meant that the fertilizer nutrient release period is 60 days, and model is PCU60 (43-0-0).
Said be reacted into the membrane polymer coated carbamide be heat curing-type be reacted into the membrane polymer coated carbamide, comprise that polyurethanes reaction film polymer capsule urea, epoxy resin are reacted into the membrane polymer coated carbamide, alkyd resin class is reacted into the membrane polymer coated carbamide.
Nitrogen, phosphorus pentoxide content are respectively 18%, 46% in the phosphate fertilizer, the content 48～51% of potassium oxide in the vitriolate of tartar, and nitrogen content is 46.1～46.6% in the urea, is mass percent.
The particle diameter of the raw material that the present invention adopted is all in 2～5 millimeters scopes.
Further preferred, the sugarcane special-purpose control-release fertilizer that contains controlled release nitrogen provided by the present invention by weight the parts by weight of each component is:
Release period be 180 days be reacted into 100～130 parts of membrane polymer coated carbamides;
Release period be 120 days be reacted into 110～130 parts of membrane polymer coated carbamides;
Release period be 60 days be reacted into 40～70 parts of membrane polymer coated carbamides;
30～80 parts in urea;
100～200 parts in phosphate fertilizer;
440～460 parts in potash fertilizer;
4～7 parts in zinc sulfate;
1～15 part in sal epsom.
The application that contains the sugarcane special-purpose control-release fertilizer of controlled release nitrogen provided by the present invention, this fertilizer are before sugarcane is transplanted, to make base manure once to apply, and needn't go later on again and topdress.Fertilizing method is after ploughing, to spread fertilizer over the fields, and rake is gone in 20-25 centimetre the soil layer again, carries out cane planting then.
The membrane polymer coated carbamide that is reacted into that the present invention adopted is meant polyurethanes reaction film polymer capsule urea, is main raw material with vegetables oil and solidifying agent, need not to add solvent, cleanliness without any pollution in the film-coated controlled release fertilizer manufacturing processed.
Technical characterstic of the present invention is to utilize the Nutrient Release that is reacted into the membrane polymer coating controlled-release fertilizer; While is according to the law of nutritive absorption of sugarcane; With specific coating quantity different time of releasing section singly plant release and release control fertilizer and the part readily avaiable fertilizer is mixed, formed nutrient comprehensively, discharge rational sugarcane special-purpose control-release fertilizer, the nutrient of sugarcane special-purpose control-release fertilizer discharges the law of nutritive absorption that meets sugarcane; Carry out field experiment, obtained good effect.
Beneficial effect of the present invention is following:
1, the nutrient controlled-release effect is good.Each raw material of this special-purpose control-release fertilizer is all selected the water-fast various controlled releases fertilizer that are reacted into the membrane polymer material produce for use, and their Nutrient Release mainly receives Influence of Temperature during sugarcane production, and temperature raises, and nutrient discharges to be accelerated; Temperature reduces, and nutrient discharges and reduces, and this just matches with sugarcane production speed and nutrition absorption quantity, really reaches the effect of sustained release.
2, controlled release fertilizer nutrient releasing rule and sugarcane absorb and match.The sugarcane different growing stage is different to nitrogen, phosphorus, three kinds of nutrient absorbing quantity of potassium and ratio.The controlled release nitrogenous fertilizer that has comprised different release periods among the present invention; Through adjusting the proportioning of different fertilizer efficiency period nitrogen; Realize the identical basically of sugarcane production phase nutrient demand curve and fertilizer nutrient release profiles, fertilizer releasing period is long, simultaneously; On prescription, add zinc sulfate and sal epsom, can satisfy sugarcane high yield and high quality needs.
3, improve utilization rate of fertilizer, preserve the ecological environment.Special-purpose control-release fertilizer can be concentrated and execute at the sugarcane rhizosphere, and can not produce harm, is beneficial to root system and absorbs, and has improved utilization rate of fertilizer, has reduced ammonia volatilization, nitric nitrogen leaching loss etc.Result of study shows, compares with the normal conventional fertilising, and under the same amount condition, special-purpose control-release fertilizer can increase operation rate 20.5%～30%.
4, reduce fertilizer application frequency, reduce peasant's labour intensity.Generally speaking, sugarcane need be topdressed 2-3 time except that using base manure.Because sugarcane later stage envelope row, the fertilising difficulty is big, and labour intensity is big, time-consuming taking a lot of work.Special-purpose control-release fertilizer no longer topdresses later at plantation previous crops base manure applied once, has reduced fertilizer application frequency, has reduced peasant's labour intensity, has practiced thrift the recruitment cost.
5, add zinc and magnesium, improve the yield and quality.Zinc and magnesium are that plant normal growth is grown required middle amount nutritive element, and zinc influences sugarcane dry-matter fierceness, ultimate capacity and quality; Magnesium can promote sugarcane leaf photosynthesis and metabolic the carrying out of triumph, thereby promotes plant strain growth, improves the sugarcane sugar degree.
Description of drawings
Fig. 1 is the sugarcane special-purpose control-release fertilizer nutrient element releasing rule that provided of embodiment one and the nutrient absorption law graphic representation of sugarcane, and X-coordinate is the bearing time of sugarcane, and ordinate zou is a nitrogen nutrient.
Embodiment
Below in conjunction with embodiment, specific embodiments of the invention describes in further detail.Following examples are used to explain the present invention, but are not used for limiting scope of the present invention.
Embodiment one
Raw material: release period be 180 days be reacted into membrane polymer coated carbamide 130kg, release period be 120 days be reacted into membrane polymer coated carbamide 125 kg, release period be 60 days be reacted into membrane polymer coated carbamide 60 kg, urea 30 kg, diammonium phosphate 195 kg, vitriolate of tartar 455 kg, zinc sulfate 5 kg, sal epsom 4 kg.
Above-mentioned each raw material is put into the blending machine, abundant mixing, then with mixed fertilizer send into metering, wrapping machine measures, packs.
Embodiment two
Raw material: release period be 180 days be reacted into membrane polymer coated carbamide 130kg, release period be 120 days be reacted into membrane polymer coated carbamide 120kg, release period be 60 days be reacted into membrane polymer coated carbamide 50 kg, urea 35 kg, monoammonium phosphate 200 kg, Repone K 460 kg, zinc sulfate 5 kg, sal epsom 4 kg.
Above-mentioned each raw material is put into the blending machine, abundant mixing, then with mixed fertilizer send into metering, wrapping machine measures, packs.
Test:
Supplying the examination sugar cane breed is No. 22, new platform sugar, and soil is latosol, and planting type is the land for growing field crops.Control group is by every mu 120 kilo sulfuric acid K composite fertilizer; The fertilizer amount of sugarcane special-purpose control-release fertilizer provided by the present invention reduces 20% (every mu consumption 96 kilograms) than control group.The sugarcane special-purpose control-release fertilizer all is to make base manure prior to seeding once to apply in the test; Compound potassium sulfate fertilizer 35% is executed with the time with controlled release fertilizer in the control group, and 45% and 20% imposes with elongation sugarcane respectively tillering phase mid-term.Application process: base manure is the bottom that imposes on seed furrow, sows after fertilizer and the part mixing with soil, and topdressing is to spread fertilizer over the fields behind soil surface blinding, water.The result sees table 1.
Table 1 sugarcane special-purpose control-release fertilizer experiment contrast
Experimental result shows that sugarcane special-purpose control-release fertilizer provided by the present invention is used to grow cane, and the sugarcane sugar degree is high, and effect of increasing production is better, and utilization rate of fertilizer improves, and saves the recruitment 2 times of topdressing, saving of labor, laborsaving.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from know-why of the present invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (5)
1. sugarcane special-purpose control-release fertilizer that contains controlled release nitrogen; It is characterized in that by release period being that 180 days be reacted into membrane polymer coated carbamide, release period is that 120 days be reacted into membrane polymer coated carbamide, release period is that 60 days be reacted into membrane polymer coated carbamide, urea, phosphate fertilizer, potash fertilizer, zinc sulfate and sal epsom makes through mixing, wherein the parts by weight of each component are by weight:
Release period be 180 days be reacted into 80～160 parts of membrane polymer coated carbamides;
Release period be 120 days be reacted into 80～160 parts of membrane polymer coated carbamides;
Release period be 60 days be reacted into 30～100 parts of membrane polymer coated carbamides;
20～100 parts in urea;
100～200 parts in phosphate fertilizer;
400～500 parts in potash fertilizer;
1～15 part in zinc sulfate;
1～15 part in sal epsom;
Said phosphate fertilizer is diammonium phosphate or monoammonium phosphate; Said potash fertilizer is vitriolate of tartar or Repone K.
2. sugarcane special-purpose control-release fertilizer according to claim 1 is characterized in that: the said membrane polymer coated carbamide that is reacted into is that heat curing-type is reacted into the membrane polymer coated carbamide.
3. sugarcane special-purpose control-release fertilizer according to claim 2 is characterized in that: said heat curing-type is reacted into that the membrane polymer coated carbamide is a polyurethanes reaction film polymer capsule urea, epoxy resin is reacted into the membrane polymer coated carbamide or alkyd resin class is reacted into the membrane polymer coated carbamide.
4. sugarcane special-purpose control-release fertilizer according to claim 1 is characterized in that: the particle diameter of each component of the said sugarcane special-purpose control-release fertilizer that contains controlled release nitrogen is in 2～5 millimeters scopes.
5. sugarcane special-purpose control-release fertilizer according to claim 1 is characterized in that: the said sugarcane special-purpose control-release fertilizer that contains controlled release nitrogen by weight the parts by weight of each component is:
Release period be 180 days be reacted into 100～130 parts of membrane polymer coated carbamides;
Release period be 120 days be reacted into 110～130 parts of membrane polymer coated carbamides;
Release period be 60 days be reacted into 40～70 parts of membrane polymer coated carbamides;
30～80 parts in urea;
100～200 parts in phosphate fertilizer;
440～460 parts in potash fertilizer;
4～7 parts in zinc sulfate;
1～15 part in sal epsom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210264431XA CN102746067A (en) | 2012-07-27 | 2012-07-27 | Controlled release nitrogen-containing controlled release fertilizer special for sugarcane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210264431XA CN102746067A (en) | 2012-07-27 | 2012-07-27 | Controlled release nitrogen-containing controlled release fertilizer special for sugarcane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102746067A true CN102746067A (en) | 2012-10-24 |
Family
ID=47026632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210264431XA Pending CN102746067A (en) | 2012-07-27 | 2012-07-27 | Controlled release nitrogen-containing controlled release fertilizer special for sugarcane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102746067A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102875261A (en) * | 2012-10-31 | 2013-01-16 | 海洋石油富岛有限公司 | Controlled-release base fertilizer specially used for vegetables |
| CN102875249A (en) * | 2012-10-31 | 2013-01-16 | 海洋石油富岛有限公司 | Synchronous nutrition controlled-release fertilizer specially used for dragon fruits |
| CN102875262A (en) * | 2012-10-31 | 2013-01-16 | 海洋石油富岛有限公司 | Synchronous nutrition controlled-release fertilizer specially used for litchis |
| CN103172435A (en) * | 2012-12-27 | 2013-06-26 | 中国海洋石油总公司 | Controlled-release fertilizer for wax-apple trees and method for preparing same |
| CN103232294A (en) * | 2013-05-08 | 2013-08-07 | 山东省花生研究所 | Long-lasting nitrogen special fertilizer formula for peanuts |
| CN103483110A (en) * | 2013-09-06 | 2014-01-01 | 天津芦阳化肥股份有限公司 | Whole-process nutrient supply type composite fertilizer and preparation method thereof |
| CN103641634A (en) * | 2013-12-20 | 2014-03-19 | 海洋石油富岛有限公司 | Special nutrient synchronous controlled-release fertilizer for thermal plant sweet waxy maizes |
| CN104230428A (en) * | 2013-06-18 | 2014-12-24 | 广州甘蔗糖业研究所 | Preparation method and field using technology of special all-element compound fertilizer for sugarcane |
| CN109503296A (en) * | 2018-12-29 | 2019-03-22 | 北京市农林科学院 | L-type and L-type special controlled release fertilizer for rice and its application in rice cropping |
| CN110483216A (en) * | 2019-08-07 | 2019-11-22 | 中海石油化学股份有限公司 | A kind of special fertilizer for sugar cane and its application method |
| CN112374946A (en) * | 2020-12-23 | 2021-02-19 | 广东海洋大学 | Slow-controlled release fertilizer suitable for sugarcane mechanized planting |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101239854A (en) * | 2008-03-10 | 2008-08-13 | 山东金正大生态工程股份有限公司 | Special-purpose control-release fertilizer for modified epoxy resin integument tulip and preparation method thereof |
| CN101239857A (en) * | 2008-03-10 | 2008-08-13 | 山东金正大生态工程股份有限公司 | Long-acting special-purpose control-release fertilizer for peony and preparation method thereof |
| WO2011146026A2 (en) * | 2010-05-18 | 2011-11-24 | Duslo, A.S. | Granular fertilizer with controlled release of nutrients |
| CN102557817A (en) * | 2011-12-05 | 2012-07-11 | 三河市香丰肥业有限公司 | Controlled-release formula fertilizer, preparation method and application thereof |
-
2012
- 2012-07-27 CN CN201210264431XA patent/CN102746067A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101239854A (en) * | 2008-03-10 | 2008-08-13 | 山东金正大生态工程股份有限公司 | Special-purpose control-release fertilizer for modified epoxy resin integument tulip and preparation method thereof |
| CN101239857A (en) * | 2008-03-10 | 2008-08-13 | 山东金正大生态工程股份有限公司 | Long-acting special-purpose control-release fertilizer for peony and preparation method thereof |
| WO2011146026A2 (en) * | 2010-05-18 | 2011-11-24 | Duslo, A.S. | Granular fertilizer with controlled release of nutrients |
| CN102557817A (en) * | 2011-12-05 | 2012-07-11 | 三河市香丰肥业有限公司 | Controlled-release formula fertilizer, preparation method and application thereof |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102875249A (en) * | 2012-10-31 | 2013-01-16 | 海洋石油富岛有限公司 | Synchronous nutrition controlled-release fertilizer specially used for dragon fruits |
| CN102875262A (en) * | 2012-10-31 | 2013-01-16 | 海洋石油富岛有限公司 | Synchronous nutrition controlled-release fertilizer specially used for litchis |
| CN102875261A (en) * | 2012-10-31 | 2013-01-16 | 海洋石油富岛有限公司 | Controlled-release base fertilizer specially used for vegetables |
| CN103172435B (en) * | 2012-12-27 | 2014-12-10 | 中国海洋石油总公司 | Controlled-release fertilizer for wax-apple trees and method for preparing same |
| CN103172435A (en) * | 2012-12-27 | 2013-06-26 | 中国海洋石油总公司 | Controlled-release fertilizer for wax-apple trees and method for preparing same |
| CN103232294B (en) * | 2013-05-08 | 2015-09-09 | 山东省花生研究所 | A kind of long-acting nitrogen fertilizer specially for peanut formula |
| CN103232294A (en) * | 2013-05-08 | 2013-08-07 | 山东省花生研究所 | Long-lasting nitrogen special fertilizer formula for peanuts |
| CN104230428A (en) * | 2013-06-18 | 2014-12-24 | 广州甘蔗糖业研究所 | Preparation method and field using technology of special all-element compound fertilizer for sugarcane |
| CN103483110A (en) * | 2013-09-06 | 2014-01-01 | 天津芦阳化肥股份有限公司 | Whole-process nutrient supply type composite fertilizer and preparation method thereof |
| CN103483110B (en) * | 2013-09-06 | 2015-09-09 | 天津芦阳化肥股份有限公司 | Whole process is for nutrient compound manure and preparation method thereof |
| CN103641634A (en) * | 2013-12-20 | 2014-03-19 | 海洋石油富岛有限公司 | Special nutrient synchronous controlled-release fertilizer for thermal plant sweet waxy maizes |
| CN109503296A (en) * | 2018-12-29 | 2019-03-22 | 北京市农林科学院 | L-type and L-type special controlled release fertilizer for rice and its application in rice cropping |
| CN110483216A (en) * | 2019-08-07 | 2019-11-22 | 中海石油化学股份有限公司 | A kind of special fertilizer for sugar cane and its application method |
| CN110483216B (en) * | 2019-08-07 | 2021-07-30 | 中海石油化学股份有限公司 | Special fertilizer for sugarcane and application method thereof |
| CN112374946A (en) * | 2020-12-23 | 2021-02-19 | 广东海洋大学 | Slow-controlled release fertilizer suitable for sugarcane mechanized planting |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102746067A (en) | Controlled release nitrogen-containing controlled release fertilizer special for sugarcane | |
| CN104151083B (en) | One grows cotton dedicated liquid spray drip irrigation fertilizer and production method thereof | |
| CN101318858B (en) | Clear liquid complex fertilizer special for high concentration drip irrigation and method of preparing the same | |
| CN100429188C (en) | Special controlled release fertilizer for peanut, soybean and manufacturing method thereof | |
| CN103804092A (en) | Special fertilizer for sugarcane and preparation method of fertilizer | |
| CN102617218A (en) | Special active fertilizer for honeysuckle and preparation method thereof | |
| CN102557817A (en) | Controlled-release formula fertilizer, preparation method and application thereof | |
| WO2022016715A1 (en) | Large-granule fertilizer based on common quick-acting fertilizer and applied once during whole growth period of field crop, and preparation method therefor and use thereof | |
| CN103232305A (en) | Universal slow release fertilizer for sugarcane | |
| CN100429192C (en) | Special controlled release fertilizer for cotton and manufacturing method thereof | |
| CN100448810C (en) | Special controlled release fertilizer for tomato and preparation method thereof | |
| CN105294237A (en) | Preparation method of special rape fertilizer containing alginic acid | |
| CN102653491A (en) | Application of composite synergist into Southern double cropping rice | |
| CN105016858A (en) | Biochar slow-release nitrogen fertilizer and preparation method thereof | |
| CN101508609A (en) | Compound fertilizer formula for promoting growth of seedling and plant use method | |
| CN105036903A (en) | Biocarbon sustain-released paddy rice dedicated basic fertilizer and preparation method thereof | |
| CN103232283A (en) | Complex fertilizer containing growth promoting guiding element, and preparation method thereof | |
| CN105084983A (en) | Crop universal base fertilizer containing secondary and minor elements and preparation method thereof | |
| CN102503714B (en) | Special fertilizer for transplanting tobacco | |
| CN105175086A (en) | Special selenium-rich long-acting rice slow-release fertilizer and preparation method thereof | |
| CN110759777A (en) | Special liquid compound fertilizer suitable for lateral deep application of rice and preparation method thereof | |
| CN112225625A (en) | Special controlled-release fertilizer for conventional japonica rice, and preparation method and application thereof | |
| CN103772057B (en) | A kind of chelated microelements fertilizer | |
| CN105036902A (en) | Biocarbon sustain-released potassium fertilizer and preparation method thereof | |
| CN101870597A (en) | Fertilizer special for konjak |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121024 |