CN103333030A - Composite fertilizer special for corn and preparation method thereof - Google Patents
Composite fertilizer special for corn and preparation method thereof Download PDFInfo
- Publication number
- CN103333030A CN103333030A CN201310287794XA CN201310287794A CN103333030A CN 103333030 A CN103333030 A CN 103333030A CN 201310287794X A CN201310287794X A CN 201310287794XA CN 201310287794 A CN201310287794 A CN 201310287794A CN 103333030 A CN103333030 A CN 103333030A
- Authority
- CN
- China
- Prior art keywords
- composite fertilizer
- parts
- corn
- fertilizer special
- urea
- 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
Landscapes
- Fertilizers (AREA)
Abstract
The invention relates to a composite fertilizer special for corn cultivation, and especially relates to a composite fertilizer which is suitable for corn cultivation in Hexi inland irrigated region Gansu province. The composite fertilizer comprises following ingredients, by weight: 40 to 44 portions of urea, 30 to 32 portions of monoammonium phosphate, 16 to 18 portions of potassium sulfate, 2 to 3 portions of zinc sulfate, 1 to 2 portions of ammonium molybdate, 0.3 to 0.5 portion of boric acid and 0.3 to 0.5 portion of industrial citric acid. The formula ratio of the ingredients of the composite fertilizer is specially designed according to existing nutritional conditions of corn field and the nutrient absorption ratio of corn, so that the composite fertilizer is capable of solving a bottleneck problem that the nutrient ratio of corn field is unbalanced, and a problem that pollination of cultivated corn is poor; increasing the solubility of immobilized phosphor in soil; and solving a difficult problem that the availability of phosphor in soil is low. The application of the composite fertilizer is capable of increasing the yield of corn greatly. The invention also relates to a preparation method of the composite fertilizer special for corn.
Description
Technical field
The present invention relates to the agrochemical technical field, relate in particular to a kind of composite fertilizer special for production of hybrid seeds corn; The invention still further relates to the preparation method of above-mentioned composite fertilizer special.
Background technology
Landlocked irrigated area, the west of a river, Gansu Province relies on its superior corn seed working condition, over nearly 10 years, attracted Dupont pioneer, U.S. Meng Shan all, step on extra large pioneer species industry, China seed industry, East Asia, Liaoning, Beijing moral farming, Ao Ruijin, Dunhuang etc. more than 90 family and plant industry groups both at home and abroad, set up 1,500,000 mu in corn seed producing base, become maximum corn seed producing base, the whole nation, the corn seed producing industry has developed into one of mainstay industry of the landlocked irrigated area increasing peasant income in the west of a river, growth of agricultural efficiency.But the matter of utmost importance that highlights day by day at present is that production of hybrid seeds maize sown area is big, continuous cropping year limit for length, soil macroelement and micronutrient proportional imbalance, the raw material of mix-compound fertilizer that circulates on the market and ratio do not meet local area production of hybrid seeds corn field nutrient present situation and production of hybrid seeds corn to the nutrient absorbing ratio, cause production of hybrid seeds corn quality and output to descend, part is planted industry group and is flowed to Xinjiang, Inner Mongol and Ningxia, has influenced the Sustainable development of local area production of hybrid seeds corn industry.Therefore, research and development are adapted to the key point that the composite fertilizer of production of hybrid seeds corn is raising production of hybrid seeds corn quality and output.In recent years, the research of relevant composite fertilizer has been subjected to extensive concern, but bibliographical information is not seen by the composite fertilizer that is adapted to the landlocked irrigated area production of hybrid seeds corn in the west of a river, Gansu Province.Problem at above-mentioned existence, adopt crop alimentary balance fertilizing theory, urea, monoammonium phosphate, vitriolate of tartar, zinc sulfate, ammonium molybdate, boric acid, industrial citric acid are combined in proportion the composite fertilizer that is adapted to the landlocked irrigated area production of hybrid seeds corn in the west of a river, Gansu Province, reach the supply corn nourishment, coordinate soil nutrient balance, improve the purpose of production of hybrid seeds corn quality and output.
Summary of the invention
In order to solve the bottleneck problem of production of hybrid seeds corn field nutrient balance, improve production of hybrid seeds corn quality and output effectively, one aspect of the present invention provides a kind of corn composite fertilizer special, especially is applicable to the composite fertilizer special of the landlocked irrigated area production of hybrid seeds corn in the west of a river, Gansu Province; Simultaneously, the present invention provides a kind of preparation method of above-mentioned composite fertilizer special on the other hand.Particular content is as follows:
One aspect of the present invention provides a kind of corn composite fertilizer special, and the raw materials by weight portion meter in the described composite fertilizer comprises: urea 40-44 part, monoammonium phosphate 30-32 part, vitriolate of tartar 16-18 part, zinc sulfate 2-3 part, ammonium molybdate 1-2 part, boric acid 0.3-0.5 part, industrial citric acid 0.3-0.5 part.
Raw materials by weight portion meter in the above-mentioned corn composite fertilizer special, can be according to following several concrete scheme implementations:
44 parts in urea, 32 parts of monoammonium phosphates, 18 parts of vitriolate of tartar, 3 parts in zinc sulfate, 2 parts of ammonium molybdates, 0.5 part of boric acid, 0.5 part of industrial citric acid; Perhaps
43.5 parts in urea, 31.6 parts of monoammonium phosphates, 17.85 parts of vitriolate of tartar, 2.5 parts in zinc sulfate, 2 parts of ammonium molybdates, 0.4 part of boric acid, 0.5 part of industrial citric acid; Perhaps
42.50 parts in urea, 31.85 parts of monoammonium phosphates, 17.70 parts of vitriolate of tartar, 2.85 parts in zinc sulfate, 1.90 parts of ammonium molybdates, 0.50 part of boric acid, 0.45 part of industrial citric acid; Perhaps
40 parts in urea, 30 parts of monoammonium phosphates, 16 parts of vitriolate of tartar, 2 parts in zinc sulfate, 1 part of ammonium molybdate, 0.3 part of boric acid, 0.3 part of industrial citric acid.
Above-mentioned any corn composite fertilizer special, preferably, wherein said composite fertilizer by each raw material after crushed mixing granulation form.
Above-mentioned any corn composite fertilizer special preferably, by mass percentage, contains N46% in the wherein said urea; Contain N12% in the monoammonium phosphate, contain P
2O
552%; Contain K50% in the vitriolate of tartar; Contain Zn23% in the zinc sulfate; Contain Mo54.3% in the ammonium molybdate; Contain B17.5% in the boric acid.
Above-mentioned corn composite fertilizer special provided by the invention compared with prior art, has the following advantages:
The each component formula rate is to the nutrient absorbing ratio and specialized designs according to corn field nutrient present situation and corn in the composite fertilizer of the present invention, and, in this composite fertilizer, select for use urea, monoammonium phosphate, vitriolate of tartar, zinc sulfate, ammonium molybdate, boric acid for production of hybrid seeds corn growth provides a large amount of N, P, K element and trace element, solved the unbalance bottleneck problem of production of hybrid seeds corn field nutrients ratio; The boric acid of selecting for use has promoted the female stamen of corn to grow for production of hybrid seeds corn growth provides B element, has solved the problem of production of hybrid seeds corn poor pollination; The industrial citric acid of selecting for use has reduced soil acidity or alkalinity, has improved the solubleness of stationary state phosphorus in the soil, has solved the low difficult problem of phosphorus utilization in the soil; Adopt the composite fertilizer of above-mentioned component, improved maize yield greatly.
The present invention is carried out after the mass analysis as can be seen, and product of the present invention reaches the specification of quality (referring to table 1) of composite fertilizer.
Table 1 product quality analysis result of the present invention
The present invention provides a kind of preparation method of above-mentioned each corn composite fertilizer special on the other hand, may further comprise the steps:
(1) each raw material is crushed into Powdered respectively, takes by weighing above-mentioned each raw material powder in proportion;
(2) each raw material powder of gained in the step (1) is delivered in the mixing machine, mixing time 25-30 minute, the mixture that obtains mixing;
(3) gained mixture in the step (2) is delivered to carries out granulation, drying in the tablets press;
(4) gained compound particles in the step (3) is cooled to room temperature, classification, screening, packing namely get the corn composite fertilizer special.
Among the above-mentioned preparation method, preferably, wherein drying mode described in the step (3) is for adopting drying machine, and the drying machine temperature in is 340-350 ℃, and temperature out is 110-120 ℃.
Among the above-mentioned preparation method, preferably, wherein the granularity of granulation is 0.50-1mm in the step (3).
The preparation method of above-mentioned corn composite fertilizer special provided by the invention, raw material is easy to get, and is simple to operate, easy to implement, and the composite fertilizer's steady quality that makes is reliable, and corn is to the good absorbing effect of each nutritive element, and output improves greatly.
Embodiment
The present invention is further described below by embodiment, includes but not limited to following embodiment.
Employed raw material sources are as follows in the following embodiment:
Urea contains N46%, and particle diameter is 2-3mm, and manufacturer is Ningbo YuanDong chemical engineering Group Co.,Ltd.
Monoammonium phosphate, containing the N massfraction is 12%, contains P
2O
5Massfraction is 52%, and manufacturer is Qingdao City three magnificent chemical industry limited liability company.
Vitriolate of tartar contains K50%, and particle diameter is 2-3mm, and manufacturer is Hubei emerging milky way chemical industry company limited.
Zinc sulfate, containing the Zn massfraction is 23%, manufacturer is chemical plant, Liujia Gorge, Gansu.
Ammonium molybdate contains M
0Massfraction is 54.3%, and manufacturer is the abundant industrial chemicals company limited that reaches in Zhengzhou.
Boric acid, containing the B massfraction is 17.5%, manufacturer is Nanjing salt iron trade Co., Ltd.
Industrial citric acid, granularity 0.50-1mm, manufacturer is Wujiang good fortune dragon chemical industry company limited.
1 one kinds of corn composite fertilizer specials of embodiment, the raw materials by weight portion in this composite fertilizer is counted: 44 parts in urea, 32 parts of monoammonium phosphates, 18 parts of vitriolate of tartar, 3 parts in zinc sulfate, 2 parts of ammonium molybdates, 0.5 part of boric acid, 0.5 part of industrial citric acid.
2 one kinds of corn composite fertilizer specials of embodiment, the raw materials by weight portion in this composite fertilizer is counted: 43.5 parts in urea, 31.6 parts of monoammonium phosphates, 17.85 parts of vitriolate of tartar, 2.5 parts in zinc sulfate, 2 parts of ammonium molybdates, 0.4 part of boric acid, 0.5 part of industrial citric acid.
3 one kinds of corn composite fertilizer specials of embodiment, the raw materials by weight portion in this composite fertilizer is counted: 42.50 parts in urea, 31.85 parts of monoammonium phosphates, 17.70 parts of vitriolate of tartar, 2.85 parts in zinc sulfate, 1.90 parts of ammonium molybdates, 0.50 part of boric acid, 0.45 part of industrial citric acid.
4 one kinds of corn composite fertilizer specials of embodiment, the raw materials by weight portion in this composite fertilizer is counted: 40 parts in urea, 30 parts of monoammonium phosphates, 16 parts of vitriolate of tartar, 2 parts in zinc sulfate, 1 part of ammonium molybdate, 0.3 part of boric acid, 0.3 part of industrial citric acid.
The preparation method of the composite fertilizer of above-described embodiment 1-4 is:
(1) each raw material is crushed into Powdered respectively, takes by weighing above-mentioned each raw material powder in proportion;
(2) each raw material powder of gained in the step (1) is delivered in the mixing machine, mixing time 25-30 minute, the mixture that obtains mixing;
(3) gained mixture in the step (2) is delivered to carries out granulation in the tablets press, the granularity of granulation is 0.50-1mm, adopts the drying machine drying, and the drying machine temperature in is 340-350 ℃, and temperature out is 110-120 ℃;
(4) gained compound particles in the step (3) is cooled to room temperature, adopts ordinary method classification, screening, packing, namely get the corn composite fertilizer special.
Embodiment 5
Test site: test the sea level elevation 1480m of this area, 7.20 ℃ of average annual temperatures, average annual quantity of precipitation 98.50mm, average annual steam output 2100mm, frostless season 150d at the production of hybrid seeds corn field in 10 years of brilliant village, Jiuquan, Gansu Province Suzhou District Shang Ba town four societies continuous cropping.Soil type is moisture soil, and the 0-20cm soil layer contains organic 13.30g/kg, alkaline hydrolysis N82.45mg/kg, available P 10.63mg/kg, quick-acting K158.36mg/kg, pH value 7.82, effectively Zn0.39 μ g/g.
Test method: the experimental plot area is 24m
2(6m * 4m), build the ridge around each residential quarter, the wide 35cm in the ridge, the high 20cm in the ridge, maternal field planting spacing in the rows 30cm, line-spacing 50cm, male parent disposes with Stem and leaf of Hongkong Pavetta, spacing in the rows 50cm.The fertilizer 1/3 of different treatment is made base fertilizer and is applied the 0-20cm soil layer when corn seeding, remaining 2/3 fertilizer imposed in conjunction with pouring water in the corn jointing stage, respectively pour water 1 time in corn jointing stage, boot stage, heading stage, filling stage, milk stage, each residential quarter irrigation quantity equates that 900m pours water at every turn
3/ hm
2, each experimental plot gathers in the crops separately during harvest corn, cell production is amounted to into per mu yield carry out statistical study.
Test is handled: at pure N, P
2O
5(pure N20.80kg/ mu, pure P under the condition that input amount equates
2O
5Be 11.20kg/ mu), test designs 3 groups of processing altogether---and the 1st group: control group, do not apply fertilizer; The 2nd group: traditional fertilizer, urea 35.71kg/ mu+diammonium phosphate 24.35kg/ mu; The 3rd group: production of hybrid seeds corn composite fertilizer special (composite fertilizer of the present invention, embodiment 1-4), production of hybrid seeds corn composite fertilizer special 74.21kg/ mu.More than every group repeat for equal 3 times, each value of every group of test-results is to get 3 times mean value.
Data processing method: corn economic characters and output adopt DPS V13.0 software analysis.
Test-results: referring to table 2.
The effect of table 2 corn composite fertilizer special and control group, traditional fertilizer relatively
| Group | Grain number per spike (grain) | Fringe grain heavy (g) | 100-grain weight (g) | Output (Kg/ mu) | Stimulation ratio (%) |
| Control group | 238.94 | 47.46 | 21.44 | 290.96 | / |
| The traditional fertilizer group | 249.63 | 62.86 | 25.25 | 367.72 | 26.38 |
| Embodiment 1 | 255.12 | 65.82 | 25.79 | 382.93 | 31.61 |
| Embodiment 2 | 252.56 | 65.16 | 25.53 | 379.10 | 30.29 |
| Embodiment 3 | 250.02 | 64.50 | 25.79 | 375.27 | 28.98 |
| Embodiment 4 | 251.29 | 64.83 | 25.40 | 377.19 | 29.64 |
By table 2 as can be seen, production of hybrid seeds corn field uses composite fertilizer of the present invention and traditional fertilizer compares, and production of hybrid seeds corn grain number per spike, fringe grain weight, 100-grain weight, output all are significantly increased.
Each proportioning raw materials is not limited to the numerical value among the embodiment 1-4 in the composite fertilizer of the present invention, as long as the raw materials by weight portion meter in the composite fertilizer is in following scope: urea 40-44 part, monoammonium phosphate 30-32 part, vitriolate of tartar 16-18 part, zinc sulfate 2-3 part, ammonium molybdate 1-2 part, boric acid 0.3-0.5 part, effect of increasing production can be implemented and reach to industrial citric acid 0.3-0.5 part all.
Claims (10)
1. a corn composite fertilizer special is characterized in that, the raw materials by weight portion meter in the described composite fertilizer comprises: urea 40-44 part, monoammonium phosphate 30-32 part, vitriolate of tartar 16-18 part, zinc sulfate 2-3 part, ammonium molybdate 1-2 part, boric acid 0.3-0.5 part, industrial citric acid 0.3-0.5 part.
2. corn composite fertilizer special as claimed in claim 1 is characterized in that, the raw materials by weight portion in the described composite fertilizer is counted: 44 parts in urea, 32 parts of monoammonium phosphates, 18 parts of vitriolate of tartar, 3 parts in zinc sulfate, 2 parts of ammonium molybdates, 0.5 part of boric acid, 0.5 part of industrial citric acid.
3. corn composite fertilizer special as claimed in claim 1 is characterized in that, the raw materials by weight portion in the described composite fertilizer is counted: 43.5 parts in urea, 31.6 parts of monoammonium phosphates, 17.85 parts of vitriolate of tartar, 2.5 parts in zinc sulfate, 2 parts of ammonium molybdates, 0.4 part of boric acid, 0.5 part of industrial citric acid.
4. corn composite fertilizer special as claimed in claim 1 is characterized in that, the raw materials by weight portion in the described composite fertilizer is counted: 42.50 parts in urea, 31.85 parts of monoammonium phosphates, 17.70 parts of vitriolate of tartar, 2.85 parts in zinc sulfate, 1.90 parts of ammonium molybdates, 0.50 part of boric acid, 0.45 part of industrial citric acid.
5. corn composite fertilizer special as claimed in claim 1 is characterized in that, the raw materials by weight portion in the described composite fertilizer is counted: 40 parts in urea, 30 parts of monoammonium phosphates, 16 parts of vitriolate of tartar, 2 parts in zinc sulfate, 1 part of ammonium molybdate, 0.3 part of boric acid, 0.3 part of industrial citric acid.
6. as each described corn composite fertilizer special among the claim 1-5, it is characterized in that, described composite fertilizer by each raw material after crushed mixing granulation form.
7. as each described corn composite fertilizer special among the claim 1-5, it is characterized in that, by mass percentage, contain N46% in the wherein said urea; Contain N12% in the monoammonium phosphate, contain P
2O
552%; Contain K50% in the vitriolate of tartar; Contain Zn23% in the zinc sulfate; Contain Mo54.3% in the ammonium molybdate; Contain B17.5% in the boric acid.
8. as the preparation method of each described corn composite fertilizer special among the claim 1-7, may further comprise the steps:
(1) each raw material is crushed into Powdered respectively, takes by weighing above-mentioned each raw material powder in proportion;
(2) each raw material powder of gained in the step (1) is delivered in the mixing machine, mixing time 25-30 minute, the mixture that obtains mixing;
(3) gained mixture in the step (2) is delivered to carries out granulation, drying in the tablets press;
(4) gained compound particles in the step (3) is cooled to room temperature, classification, screening, packing namely get the corn composite fertilizer special.
9. the preparation method of corn composite fertilizer special as claimed in claim 8, wherein drying mode described in the step (3) is for adopting drying machine, and the drying machine temperature in is 340-350 ℃, and temperature out is 110-120 ℃.
10. the preparation method of corn composite fertilizer special as claimed in claim 8, wherein the granularity of granulation is 0.50-1mm in the step (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310287794XA CN103333030A (en) | 2013-07-08 | 2013-07-08 | Composite fertilizer special for corn and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310287794XA CN103333030A (en) | 2013-07-08 | 2013-07-08 | Composite fertilizer special for corn and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103333030A true CN103333030A (en) | 2013-10-02 |
Family
ID=49241258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310287794XA Pending CN103333030A (en) | 2013-07-08 | 2013-07-08 | Composite fertilizer special for corn and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103333030A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2006207886A1 (en) * | 2005-09-27 | 2007-04-19 | John Pashai | Fertiliser |
| CN101125777A (en) * | 2007-09-05 | 2008-02-20 | 王树禹 | Drought resisting type corn fertilizer |
| CN101289345A (en) * | 2008-06-18 | 2008-10-22 | 石家庄开发区德赛化工有限公司 | Synergistic composite fertilizer and method for preparing same |
| CN101519331A (en) * | 2009-04-09 | 2009-09-02 | 李财 | Slow-release high-yield crop fertilizer |
| CN101891561A (en) * | 2010-06-12 | 2010-11-24 | 烟台五洲施得富肥料有限公司 | Fertilizer preparation method by improving utilization rate and carrying out phosphorus dissolving to lighten soil pollution |
| CN102320890A (en) * | 2011-08-24 | 2012-01-18 | 甘肃省敦煌种业股份有限公司玉门市种子公司 | Production of hybrid seeds corn is multi-functional special-purpose fertile |
| US20120090366A1 (en) * | 2010-04-16 | 2012-04-19 | Taylor Pursell | Controlled release fertilizer with biopolymer coating and process for making same |
| CN102503639A (en) * | 2011-10-29 | 2012-06-20 | 史丹利化肥股份有限公司 | Melt granulation humic acid functional fertilizer special for corns and preparing method thereof |
-
2013
- 2013-07-08 CN CN201310287794XA patent/CN103333030A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2006207886A1 (en) * | 2005-09-27 | 2007-04-19 | John Pashai | Fertiliser |
| CN101125777A (en) * | 2007-09-05 | 2008-02-20 | 王树禹 | Drought resisting type corn fertilizer |
| CN101289345A (en) * | 2008-06-18 | 2008-10-22 | 石家庄开发区德赛化工有限公司 | Synergistic composite fertilizer and method for preparing same |
| CN101519331A (en) * | 2009-04-09 | 2009-09-02 | 李财 | Slow-release high-yield crop fertilizer |
| US20120090366A1 (en) * | 2010-04-16 | 2012-04-19 | Taylor Pursell | Controlled release fertilizer with biopolymer coating and process for making same |
| CN101891561A (en) * | 2010-06-12 | 2010-11-24 | 烟台五洲施得富肥料有限公司 | Fertilizer preparation method by improving utilization rate and carrying out phosphorus dissolving to lighten soil pollution |
| CN102320890A (en) * | 2011-08-24 | 2012-01-18 | 甘肃省敦煌种业股份有限公司玉门市种子公司 | Production of hybrid seeds corn is multi-functional special-purpose fertile |
| CN102503639A (en) * | 2011-10-29 | 2012-06-20 | 史丹利化肥股份有限公司 | Melt granulation humic acid functional fertilizer special for corns and preparing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101318858B (en) | Clear liquid complex fertilizer special for high concentration drip irrigation and method of preparing the same | |
| CN104961580A (en) | Preparation method and application of biological organic-inorganic liquid fertilizer | |
| US10954171B2 (en) | Method for producing stable fertilizer by nano-carbon sol | |
| CN104892056A (en) | Camellia oleifera dedicated biological organic fertilizer and preparation method thereof | |
| CN105859405A (en) | Method for preparing special alga fertilizer for peanuts | |
| CN105110861A (en) | Water-soluble organic-inorganic compounded fertilizer and preparation method therefor | |
| CN101462902A (en) | Production method of spherical organic/inorganic composite fertilizer with sheep manure as organic raw material | |
| CN109095993A (en) | One plant nutrient liquor and preparation method thereof | |
| CN100391908C (en) | Compound fertilizer for purple soil area orange drip irrigation system and preparation process thereof | |
| CN104086316B (en) | A kind of treaster functional compound fertilizer and preparation method thereof | |
| CN107602247A (en) | A kind of special acid Water soluble fertilizer of seed production corn and preparation method thereof | |
| CN103172475A (en) | Ananas comosus controlled-release fertilizer and preparation method thereof | |
| CN105315058A (en) | Macroelement water-soluble fertilizer and preparation method therefor | |
| CN104003781A (en) | Betel nut organic mixed fertilizer | |
| CN103172436A (en) | Areca catechu controlled-release fertilizer and preparation method thereof | |
| CN103214309B (en) | A kind of sugarcane Special long-acting slow release fertilizer | |
| CN102515916A (en) | Water-soluble fertilizer special for legume crops, and its preparation method and application method | |
| CN107750820A (en) | A kind of culture medium of edible fungus material | |
| CN104628465A (en) | Special fertilizer for aniseed | |
| CN103467196A (en) | Rosemary seedling nutrient solution | |
| CN103242098A (en) | Special fertilizer for peanuts | |
| CN103964929B (en) | A kind of special drip irrigation fertilizer formula of production of hybrid seeds cucumber and application process | |
| CN104892166A (en) | Synergistic ammonium nitrate urea-urea liquid nitrogen fertilizer | |
| CN107853076A (en) | A kind of culture medium of high nutrition | |
| CN103804059A (en) | Special fertilizer for culturing Chinese clover |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131002 |