CN103467159B - Chelated compound trace element fertilizer and preparation method thereof - Google Patents
Chelated compound trace element fertilizer and preparation method thereof Download PDFInfo
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- CN103467159B CN103467159B CN201310425419.7A CN201310425419A CN103467159B CN 103467159 B CN103467159 B CN 103467159B CN 201310425419 A CN201310425419 A CN 201310425419A CN 103467159 B CN103467159 B CN 103467159B
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Abstract
The invention discloses a chelated compound trace element fertilizer and a preparation method thereof. The chelated compound trace element fertilizer comprises the following components: EDTA (ethylene diamine tetraacetic acid) chelated copper, EDTA chelated zinc, EDTA chelated iron, EDTA chelated manganese, borax decahydrate and ammonium molybdate. The preparation method comprises the steps of preparing EDTA chelated copper, EDTA chelated zinc, EDTA chelated iron and EDTA chelated manganese; purchasing borax decahydrate and ammonium molybdate; mixing the raw materials, drying, grinding and packaging to obtain a finished product. The prepared trace element fertilizer can be sprayed or flushed, and has a good effect on improving the symptoms such as small leaves, yellow leaves, undergrowth and the like of vegetables caused by deficiency of trace elements.
Description
Technical field
The present invention relates to a kind of trace element fertilizer and preparation method thereof, specifically relate to a kind of Chelating state composite fertilizer with trace elements and preparation method thereof.
Background technology
Trace element has very important effect to plant-growth, certain research is had at present to the compound trace element fertilizer of the trace element needed containing plant-growth, on March 5th, 2008, publication number was the patent of invention of CN101134688A, disclose a kind of complete-element chelating highly effective trace fertilizer and manufacture method thereof, adopt sequestrant and various trace elements to carry out chelatropic reaction, and add magnesium oxide and carry out pH value adjustment, but because of containing magnesium elements, copper content is higher, be not suitable for some areas, especially in alluvial plain of Huanghe water, calcium magnesium major part exceeds standard, the situation that in soil, sulphur exceeds standard, also do not study for the formula of the Chelating state composite fertilizer with trace elements of vegetables at present.
Summary of the invention
For the defect existed in prior art, the object of the present invention is to provide Chelating state composite fertilizer with trace elements of a kind of applicable growing vegetables and preparation method thereof, leaf of vegetable look after this Fertilizer application, can be made to turn green, obvious effect of increasing production.
For reaching above object, the technical scheme that the present invention takes is:
A kind of Chelating state composite fertilizer with trace elements, is characterized in that: comprise following component: EDTA chelated copper, EDTA chelated zinc, EDTA chelated iron, EDTA Chelated Manganese, borax decahydrate and ammonium molybdate.
Below the further improvement to technique scheme:
Described Chelating state composite fertilizer with trace elements, comprise following component by weight mark ratio mix: EDTA chelated copper 22-24 part, EDTA chelated zinc 325-340 part, EDTA chelated iron 42-48 part, EDTA Chelated Manganese 380-390 part, borax decahydrate 860-880 part, ammonium molybdate 9-11 part.
Described Chelating state composite fertilizer with trace elements, comprise following component by weight mark ratio mix: EDTA chelated copper 23.5 parts, EDTA chelated zinc 333 parts, EDTA chelated iron 46 parts, EDTA Chelated Manganese 384 parts, borax decahydrate 870 parts, ammonium molybdate 10 parts.
In described Chelating state composite fertilizer with trace elements, the content of each trace element is as follows: manganese 0.05%, zinc 0.05%, iron 0.006%, copper 0.0075%, boron 0.1%, molybdenum 0.005%.
The preparation method of above-mentioned a kind of Chelating state composite fertilizer with trace elements, is characterized in that: its step comprises: the preparation of raw material, mixing, drying, pulverizing and packaging.
Described raw material is EDTA chelated copper, EDTA chelated zinc, EDTA chelated iron, EDTA Chelated Manganese, borax decahydrate and ammonium molybdate.
The preparation process of described EDTA chelated copper: get 30% liquid caustic soda a certain amount of, add suitable quantity of water, add EDTA stirring and dissolving, be heated to 70-80 degree, slowly add copper carbonate, boil dissolving, regulate between pH value 5.1-5.4, evaporation, crystallization, centrifugal, dry obtained finished product EDTA chelated copper, requires content copper >=15%;
The preparation process of described EDTA chelated zinc: get 30% liquid caustic soda a certain amount of, add suitable quantity of water, adds EDTA stirring and dissolving, adds zinc oxide, heat to solution clarification, regulate pH value about 7.0, heating evaporation, crystallization, centrifugal, dry finished product EDTA chelated zinc, requires zinc >=15%.
The preparation process of described EDTA chelated iron: get 30% liquid caustic soda a certain amount of, add suitable quantity of water, add EDTA, stir, be heated to 70-80 degree, add red iron oxide and appropriate reduced iron powder, reaction is to dissolving completely, regulate between pH value 4.1-4.4, evaporation, crystallization, centrifugal, drying, obtained EDTA chelated iron, requires iron level >=13%;
The preparation process of described EDTA Chelated Manganese: get 30% liquid caustic soda a certain amount of, add suitable quantity of water, add EDTA, heat, stirs, after dissolving, slowly add manganous carbonate, after reacting completely, regulate pH value about 5.1, heating, evaporation, crystallization, dry, EDTA Chelated Manganese, requires Fe content >=13%.
Described raw material mixes by following weight ratio: EDTA chelated copper 22-24 part, EDTA chelated zinc 325-340 part, EDTA chelated iron 42-48 part, EDTA Chelated Manganese 380-390 part, borax decahydrate 860-880 part, ammonium molybdate 9-11 part, and then evenly mixes colours with food dye.
When described raw material mixes, the mode mixed successively from small to large by the weight added, makes it to mix.
By described Chelating state composite fertilizer with trace elements, diluting 500 ~ 600 times can directly as Foliar Spraying; By described Chelating state composite fertilizer with trace elements by 18 ~ 25kg/ ton, add in Water soluble fertilizer, the Water soluble fertilizer containing trace element can be obtained.
The present invention adopts above technical scheme, compared with prior art has the following advantages:
1, this formula is according to Shandong Province's water and soil micronutrient levels situation, with reference to vegetables, the demand rule of trace element is designed, show through multispots trial, this formula is very applicable to local water and soil situation, can spraying, also can rush and execute, all having good result to improving the various symptom such as leaflet, Huang Ye, poor growth that vegetables cause because of trace element deficiency.
2, when formulating of recipe, consider Shandong Province, the situation that especially in alluvial plain of Huanghe water, calcium magnesium major part exceeds standard, sulphur exceeds standard in soil, does not add these elements in formula, copper major part in Shandong Province's water and soil exceeds standard, and when formulating of recipe, comparatively crop demand is low for the addition of chelated copper.
3, after using this invention composite fertilizer with trace elements, the stimulation ratio of the vegetables such as sponge gourd, cucumber, gherkin reaches 12-25%, obvious effect of increasing production.
Embodiment
Except as otherwise noted, the percentage ratio adopted in the present invention is weight percentage.
embodiment 1
A kind of Chelating state composite fertilizer with trace elements, comprises following component and mixes by weight: EDTA chelated copper 22g, EDTA chelated zinc 325g, EDTA chelated iron 42g, EDTA Chelated Manganese 380g, borax decahydrate 860g, ammonium molybdate 9g.
The preparation method of above-mentioned Chelating state composite fertilizer with trace elements:
1, the preparation of raw material:
The preparation of a, EDTA chelated copper:
Get 30% liquid caustic soda a certain amount of, add suitable quantity of water, add EDTA stirring and dissolving, be heated to 70-80 degree, slowly add copper carbonate, boil dissolving, regulate between pH value 5.1-5.4, evaporation, crystallization, centrifugal, dry obtained finished product EDTA chelated copper, requires content copper >=15%.
The preparation of b, EDTA chelated zinc:
Get 30% liquid caustic soda a certain amount of, add suitable quantity of water, add EDTA stirring and dissolving, add zinc oxide, heat to solution clarification, regulate pH value about 7.0, heating evaporation, crystallization, centrifugal, dry finished product EDTA chelated zinc, requires zinc >=15%.
The preparation of c, EDTA chelated iron:
Get 30% liquid caustic soda a certain amount of, add suitable quantity of water, add EDTA, stir, be heated to 70-80 degree, add red iron oxide and appropriate reduced iron powder, reaction, to dissolving completely, regulates between pH value 4.1-4.4, evaporation, crystallization, centrifugal, dry, obtained EDTA chelated iron, requires iron level >=13%.
The preparation of d, EDTA Chelated Manganese:
Get 30% liquid caustic soda a certain amount of, add suitable quantity of water, add EDTA, heat, stir, after dissolving, slowly add manganous carbonate, after reacting completely, regulate pH value about 5.1, heating, evaporation, crystallization, dry, EDTA Chelated Manganese, requires Fe content >=13%.
E, borax decahydrate: outsourcing.
F, ammonium molybdate: outsourcing.
2, mix:
Get and detect qualified above-mentioned six kinds of raw materials: by EDTA chelated copper 22g, EDTA chelated zinc 325g, EDTA chelated iron 42g, EDTA Chelated Manganese 380g, borax decahydrate 860g, ammonium molybdate 9g, after proportional distribution is good, take the mode that the weight added mixes from small to large successively, make it to mix, and then evenly mix colours with food dye.
3, drying, pulverizing, packaging:
By mixture obtained for above-mentioned steps through super-dry, pulverizing and packaging, obtained finished product.
Obtained Chelating state composite fertilizer with trace elements dilution 500 ~ 600 times directly as Foliar Spraying, can there be is special efficacy to plant nutritional deficiency disease.
By obtained Chelating state composite fertilizer with trace elements by 18 ~ 25kg/ ton, add in Water soluble fertilizer, obtained Water soluble fertilizer has special efficacy to plant nutritional deficiency disease.
For test Chelating state composite fertilizer with trace elements composite trace element of the present invention effect aborning, in March, 2013 is to May, color villa garden technical service center of Shouguang vegetables industry group seven, to the composite fertilizer with trace elements obtained according to embodiment 1, carry out multispots trial in Shouguang great Xi ring vegetables group garden.
Participate in experimental cultivation family basic condition as following table:
| Canopy number | Crop |
| B2-046 | Sponge gourd |
| B1-023 | Cucumber |
| B1-037 | Gherkin |
| B1-008 | Color green pepper |
| B2-022 | Color green pepper |
Testing sequence:
A, reconnaissance: a point is selected in each community, wherein two canopies open the door in the east, open the door in three canopy wests;
B, select different crops to test as far as possible;
C, each test canopy area are 1.5 mu, and carry out punching with compound trace element fertilizer 170 grams and execute 0.5 mu (1/3rd of canopy), all the other 1 mu in contrast;
D, be used in conjunction twice, 10 days, interval, observations from second time punching is executed;
E, sponge gourd, cucumber, gherkin are in the best fruiting period, and that punching is executed and that no punching is not executed three furrow of choosing respectively carry out meter product, gather in the crops title every day, continuous 15 days;
Area is produced in f, survey: 4.2 meters (6 row × 0.7 meter) × 10 meters=42 square metres;
G, color green pepper are not the harvest season only estimate plant appearance, do not do output record.
Experimental result is as following table
Can find out from above-mentioned experimental result, after using this invention composite fertilizer with trace elements, the stimulation ratio of sponge gourd, cucumber, gherkin is respectively 10.20%, 23.22%, 24.34%, and color green pepper is not because of in the period of growth of the crop, but obviously turn green through observing its leaf look, there is significant effect.
embodiment 2
A kind of Chelating state composite fertilizer with trace elements, comprises following component and mixes by weight: EDTA chelated copper 24g, EDTA chelated zinc 340g, EDTA chelated iron 48g, EDTA Chelated Manganese 390g, borax decahydrate 880g, ammonium molybdate 11g.
The preparation method of above-mentioned Chelating state composite fertilizer with trace elements:
1, the preparation of raw material:
The preparation of a, EDTA chelated copper:
Get 30% liquid caustic soda a certain amount of, add suitable quantity of water, add EDTA stirring and dissolving, be heated to 70-80 degree, slowly add copper carbonate, boil dissolving, regulate between pH value 5.1-5.4, evaporation, crystallization, centrifugal, dry obtained finished product EDTA chelated copper, requires content copper >=15%.
The preparation of b, EDTA chelated zinc:
Get 30% liquid caustic soda a certain amount of, add suitable quantity of water, add EDTA stirring and dissolving, add zinc oxide, heat to solution clarification, regulate pH value about 7.0, heating evaporation, crystallization, centrifugal, dry finished product EDTA chelated zinc, requires zinc >=15%.
The preparation of c, EDTA chelated iron:
Get 30% liquid caustic soda a certain amount of, add suitable quantity of water, add EDTA, stir, be heated to 70-80 degree, add red iron oxide and appropriate reduced iron powder, reaction, to dissolving completely, regulates between pH value 4.1-4.4, evaporation, crystallization, centrifugal, dry, obtained EDTA chelated iron, requires iron level >=13%.
The preparation of d, EDTA Chelated Manganese:
Get 30% liquid caustic soda a certain amount of, add suitable quantity of water, add EDTA, heat, stir, after dissolving, slowly add manganous carbonate, after reacting completely, regulate pH value about 5.1, heating, evaporation, crystallization, dry, EDTA Chelated Manganese, requires Fe content >=13%.
E, borax decahydrate: outsourcing
F, ammonium molybdate: outsourcing
2, mix:
Get and detect qualified above-mentioned six kinds of raw materials: by EDTA chelated copper 24g, EDTA chelated zinc 340g, EDTA chelated iron 48g, EDTA Chelated Manganese 390g, borax decahydrate 880g, ammonium molybdate 11g, after proportional distribution is good, take the mode that the weight added mixes from small to large successively, make it to mix, and then evenly mix colours with food dye.
3, drying, pulverizing, packaging:
By mixture obtained for above-mentioned steps through super-dry, pulverizing and packaging, obtained finished product.
Obtained Chelating state composite fertilizer with trace elements dilution 500 ~ 600 times directly as Foliar Spraying, can there be is special efficacy to plant nutritional deficiency disease.
By obtained Chelating state composite fertilizer with trace elements by 18 ~ 25kg/ ton, add in Water soluble fertilizer, obtained Water soluble fertilizer has special efficacy to plant nutritional deficiency disease.
For test Chelating state composite fertilizer with trace elements composite trace element of the present invention effect aborning, in March, 2013 is to May, color villa garden technical service center of Shouguang vegetables industry group seven, to the composite fertilizer with trace elements obtained according to embodiment 2, carry out multispots trial in Shouguang great Xi ring vegetables group garden.
Participate in experimental cultivation family basic condition as following table:
| Canopy number | Crop |
| B2-047 | Sponge gourd |
| B1-025 | Cucumber |
| B1-038 | Gherkin |
| B1-009 | Color green pepper |
| B2-023 | Color green pepper |
Testing sequence:
A, reconnaissance: a point is selected in each community, wherein two canopies open the door in the east, open the door in three canopy wests;
B, select different crops to test as far as possible;
C, each test canopy area are 1.5 mu, and carry out punching with compound trace element fertilizer 170 grams and execute 0.5 mu (1/3rd of canopy), all the other 1 mu in contrast;
D, be used in conjunction twice, 10 days, interval, observations from second time punching is executed;
E, sponge gourd, cucumber, gherkin are in the best fruiting period, and that punching is executed and that no punching is not executed three furrow of choosing respectively carry out meter product, gather in the crops title every day, continuous 15 days;
Area is produced in f, survey: 4.2 meters (6 row × 0.7 meter) × 10 meters=42 square metres;
G, color green pepper are not the harvest season only estimate plant appearance, do not do output record.
Experimental result is as following table:
Can find out from above-mentioned experimental result, after using this invention composite fertilizer with trace elements, the stimulation ratio of sponge gourd, cucumber, gherkin is respectively 10.25%, 23.08%, 24.30%, and color green pepper is not because of in the period of growth of the crop, but obviously turn green through observing its leaf look, there is significant effect.
embodiment 3
A kind of Chelating state composite fertilizer with trace elements, comprises following component and mixes by weight: EDTA chelated copper 23.5g, EDTA chelated zinc 333g, EDTA chelated iron 46g, EDTA manganese chelating 384g, borax decahydrate 870g, ammonium molybdate 10g.
The preparation method of above-mentioned Chelating state composite fertilizer with trace elements:
1, the preparation of raw material:
The preparation of a, EDTA chelated copper:
Get 30% liquid caustic soda a certain amount of, add suitable quantity of water, add EDTA stirring and dissolving, be heated to 70-80 degree, slowly add copper carbonate, boil dissolving, regulate between pH value 5.1-5.4, evaporation, crystallization, centrifugal, dry obtained finished product EDTA chelated copper, requires content copper >=15%.
The preparation of b, EDTA chelated zinc:
Get 30% liquid caustic soda a certain amount of, add suitable quantity of water, add EDTA stirring and dissolving, add zinc oxide, heat to solution clarification, regulate pH value about 7.0, heating evaporation, crystallization, centrifugal, dry finished product EDTA chelated zinc, requires zinc >=15%.
The preparation of c, EDTA chelated iron:
Get 30% liquid caustic soda a certain amount of, add suitable quantity of water, add EDTA, stir, be heated to 70-80 degree, add red iron oxide and appropriate reduced iron powder, reaction, to dissolving completely, regulates between pH value 4.1-4.4, evaporation, crystallization, centrifugal, dry, obtained EDTA chelated iron, requires iron level >=13%.
The preparation of d, EDTA Chelated Manganese:
Get 30% liquid caustic soda a certain amount of, add suitable quantity of water, add EDTA, heat, stir, after dissolving, slowly add manganous carbonate, after reacting completely, regulate pH value about 5.1, heating, evaporation, crystallization, dry, obtained EDTA Chelated Manganese, requires Fe content >=13%.
E, borax decahydrate: outsourcing
F, ammonium molybdate: outsourcing
2, mix:
Get and detect qualified above-mentioned six kinds of raw materials: by EDTA chelated copper 23.5g, EDTA chelated zinc 333g, EDTA chelated iron 46g, EDTA Chelated Manganese 384g, borax decahydrate 870g, ammonium molybdate 10g, after proportional distribution is good, take the mode that the weight added mixes from small to large successively, make it to mix, and then evenly mix colours with food dye.
3, drying, pulverizing, packaging:
By mixture obtained for above-mentioned steps through super-dry, pulverizing and packaging, obtained finished product.
Analyze after testing: in above-mentioned Chelating state composite fertilizer with trace elements, the content of each trace element is as follows: manganese 0.05%, zinc 0.05%, iron 0.006%, copper 0.0075%, boron 0.1%, molybdenum 0.005%.
Obtained Chelating state composite fertilizer with trace elements dilution 500 ~ 600 times directly as Foliar Spraying, can there be is special efficacy to plant nutritional deficiency disease.
By obtained Chelating state composite fertilizer with trace elements by 18 ~ 25kg/ ton, add in Water soluble fertilizer, obtained Water soluble fertilizer has special efficacy to plant nutritional deficiency disease.
For test Chelating state composite fertilizer with trace elements composite trace element of the present invention effect aborning, in March, 2013 is to May, color villa garden technical service center of Shouguang vegetables industry group seven, to the composite fertilizer with trace elements obtained according to embodiment 3, carry out multispots trial in Shouguang great Xi ring vegetables group garden.
Participate in experimental cultivation family basic condition as following table:
| Canopy number | Crop |
| B2-045 | Sponge gourd |
| B1-022 | Cucumber |
| B1-036 | Gherkin |
| B1-007 | Color green pepper |
| B2-021 | Color green pepper |
Testing sequence:
A, reconnaissance: a point is selected in each community, wherein two canopies open the door in the east, open the door in three canopy wests;
B, select different crops to test as far as possible;
C, each test canopy area are 1.5 mu, and carry out punching with compound trace element fertilizer 170 grams and execute 0.5 mu (1/3rd of canopy), all the other 1 mu in contrast;
D, be used in conjunction twice, 10 days, interval, observations from second time punching is executed;
E, sponge gourd, cucumber, gherkin are in the best fruiting period, and that punching is executed and that no punching is not executed three furrow of choosing respectively carry out meter product, gather in the crops title every day, continuous 15 days;
Area is produced in f, survey: 4.2 meters (6 row × 0.7 meter) × 10 meters=42 square metres;
G, color green pepper are not the harvest season only estimate plant appearance, do not do output record.
Experimental result is as following table
Can find out from above-mentioned experimental result, after using this invention composite fertilizer with trace elements, the stimulation ratio of sponge gourd, cucumber, gherkin is respectively 11.89%, 24.52%, 25.37%, color green pepper is not because of in the period of growth of the crop, but obviously turn green through observing its leaf look, there is after fertilising significant effect, and embodiment 1 rate of increase is all than embodiment 2 and embodiment 3 height, effect of increasing production is best, and therefore this embodiment is preferred embodiment.
Above-described embodiment 1,2,3 fertilizer formula, according to Shandong Province's water and soil micronutrient levels situation, with reference to vegetables, the demand rule of trace element is designed, show through multispots trial, this formula is very applicable to local water and soil situation, can spraying, also can rush and execute, all having good result to improving the various symptom such as leaflet, Huang Ye, poor growth that vegetables cause because of trace element deficiency.
When formulating of recipe, consider Shandong Province, the situation that especially in alluvial plain of Huanghe water, calcium magnesium major part exceeds standard, sulphur exceeds standard in soil, does not add these elements in formula, copper major part in Shandong Province's water and soil exceeds standard, and when formulating of recipe, comparatively crop demand is low for the addition of chelated copper.
Claims (2)
1. a Chelating state composite fertilizer with trace elements, is characterized in that: comprise following component and mix by weight: EDTA chelated copper 23.5g, EDTA chelated zinc 333g, EDTA chelated iron 46g, EDTA Chelated Manganese 384g, borax decahydrate 870g, ammonium molybdate 10g;
In described Chelating state composite fertilizer with trace elements, the content of each trace element is as follows: manganese 0.05%, zinc 0.05%, iron 0.006%, copper 0.0075%, boron 0.1%, molybdenum 0.005%;
The preparation method of described Chelating state composite fertilizer with trace elements, comprises the following steps:
(1) preparation of raw material:
The preparation of a, EDTA chelated copper:
Get 30% liquid caustic soda a certain amount of, add suitable quantity of water, add EDTA stirring and dissolving, be heated to 70-80 degree, slowly add copper carbonate, boil dissolving, between adjust ph 5.1-5.4, evaporation, crystallization, centrifugal, dry obtained finished product EDTA chelated copper, requires content copper >=15%;
The preparation of b, EDTA chelated zinc:
Get 30% liquid caustic soda a certain amount of, add suitable quantity of water, add EDTA stirring and dissolving, add zinc oxide, heat to solution clarification, adjust ph about 7.0, heating evaporation, crystallization, centrifugal, dry finished product EDTA chelated zinc, requires zinc >=15%;
The preparation of c, EDTA chelated iron:
Get 30% liquid caustic soda a certain amount of, add suitable quantity of water, add EDTA, stir, be heated to 70-80 degree, add red iron oxide and appropriate reduced iron powder, reaction, to dissolving completely, between adjust ph 4.1-4.4, is evaporated, crystallization, centrifugal, dry, obtained EDTA chelated iron, requires iron level >=13%;
The preparation of d, EDTA Chelated Manganese:
Get 30% liquid caustic soda a certain amount of, add suitable quantity of water, add EDTA, heat, stir, after dissolving, slowly add manganous carbonate, after reacting completely, adjust ph about 5.1, heating, evaporation, crystallization, dry, obtained EDTA Chelated Manganese, requires Fe content >=13%;
E, borax decahydrate
F, ammonium molybdate
(2) mix:
Get and detect qualified above-mentioned six kinds of raw materials: by EDTA chelated copper 23.5g, EDTA chelated zinc 333g, EDTA chelated iron 46g, EDTA Chelated Manganese 384g, borax decahydrate 870g, ammonium molybdate 10g, after proportional distribution is good, take the mode that the weight added mixes from small to large successively, make it to mix, and then evenly mix colours with food dye;
(3) drying, pulverizing, packaging:
By mixture obtained for above-mentioned steps through super-dry, pulverizing and packaging, obtained finished product.
2. the using method of a kind of Chelating state composite fertilizer with trace elements as claimed in claim 1, is characterized in that: by obtained Chelating state composite fertilizer with trace elements by 18 ~ 25kg/ ton, add in Water soluble fertilizer and use.
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| CN104926536B (en) * | 2015-07-03 | 2018-01-12 | 湖北格林凯尔农业科技有限公司 | A kind of color-changing anti-counterfeit trace element water-soluble fertilizer production method |
| CN105036980B (en) * | 2015-08-11 | 2018-08-28 | 江苏盐城环保产业工程研发服务中心 | A kind of full effective type trace element liquid fertilizer and preparation method thereof |
| CN105198669A (en) * | 2015-09-12 | 2015-12-30 | 云南润杰农业科技股份有限公司 | Water-soluble fertilizer containing microelements and preparation method thereof |
| CN106316588A (en) * | 2016-08-14 | 2017-01-11 | 田慧 | Foliage spray fertilizer for Clivia gardenii Hook |
| CN108929134A (en) * | 2018-08-10 | 2018-12-04 | 四川海莱生物科技有限公司 | A kind of EDTA salt-mixture trace element water-soluble fertilizer formula and preparation method |
| CN112661559A (en) * | 2020-11-02 | 2021-04-16 | 山西金兰化工股份有限公司 | Chelated compound trace element fertilizer and preparation method thereof |
| CN114315471A (en) * | 2022-01-26 | 2022-04-12 | 青岛科光生物技术有限公司 | Vitamin B-containing medium-trace element compound fertilizer and preparation method thereof |
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| CN1186792A (en) * | 1998-01-14 | 1998-07-08 | 刘泉 | Seven component micro-bial fertilizer nutrient liquid and its preparing method |
| CN101134688B (en) * | 2006-08-28 | 2011-05-04 | 石称华 | Complete-element chelating highly effective trace fertilizer and method for manufacturing same |
| CN101531546A (en) * | 2009-04-17 | 2009-09-16 | 西北农林科技大学 | Special chelating fertilizer for mulberry field |
| CN102001880A (en) * | 2010-05-11 | 2011-04-06 | 苏州联胜化学有限公司 | Process for producing microelement complex fertilizer |
| CN103193537B (en) * | 2012-01-09 | 2015-05-20 | 山西美邦大富农科技有限公司 | Yellowish-brown humic acid-containing water-soluble fertilizer and preparation method thereof |
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