CN104230567B - In Middle And Lower Reaches of Changjiang River fertilizer special for cotton and preparation method thereof - Google Patents
In Middle And Lower Reaches of Changjiang River fertilizer special for cotton and preparation method thereof Download PDFInfo
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- CN104230567B CN104230567B CN201410467994.8A CN201410467994A CN104230567B CN 104230567 B CN104230567 B CN 104230567B CN 201410467994 A CN201410467994 A CN 201410467994A CN 104230567 B CN104230567 B CN 104230567B
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Abstract
The invention discloses a kind of In Middle And Lower Reaches of Changjiang River fertilizer special for cotton, it is made up of following component: 400 550 parts by weight of urea, 200 300 weight portion calcium superphosphate, 200 350 weight portion potassium chloride, 50 150 parts by weight of phosphoric acid one ammoniums, 30 100 parts by weight of phosphoric acid potassium dihydrogens, 15 parts by weight of ferrous sulfate, 15 parts sulfuric acid zinc, 0.5 3 weight portion EDTA Chelated Manganeses, 0.5 2 weight portion Boraxs, 0.1 1 weight portion ammonium molybdates, 0.25 0.5 weight portion Yield Increase In Cotton bacterium, 0.005 0.01 weight parts of polymer aminoacid, 10 15 parts by weight of activated carbon, 15 weight portion zeolites.Polymeric amino acid, activated carbon, zeolite are added in fertilizer special for cotton by the present invention first, and this application process can improve rhizosphere nutrient density, reduces and runs off, improve utilization rate of fertilizer, and fertile for flower bud and flower bell fertilizer can be merged, reduce labor intensity, improve Cotton Gossypii comprehensive benefit.
Description
Technical field
The present invention relates to agricultural fertilizer, particularly a kind of In Middle And Lower Reaches of Changjiang River fertilizer special for cotton
Material, the invention still further relates to the preparation method of this In Middle And Lower Reaches of Changjiang River fertilizer special for cotton.
Background technology
Cotton Gossypii is one of main industrial crops of China, occupies in national economy and people's lives
Critical role.Cotton Gossypii is at supply respect, and global sown areas of cotton minimizing in 2013 causes cotton
Flower yield declines to a great extent, and following 10 years global output of cottons are by the level relatively low in 2013
It is slowly increased, reached to 2022 and slightly exceed the base period (2010-2012 average)
Yield level.Cotton Gossypii demand side, grinds advisory data according to intelligence and analyzes following 10 years World Economics
Growth situation, whole world cotton consumption will keep steady growth.Huge to Cotton Gossypii of India's textile industry
Big demand will drive the increase of output of cotton.
The growth and development process of Cotton Gossypii is divided into the stages such as seedling stage, flower bud phase, flowering and boll-setting period, the term of opening bolls.
In general 4 seedling stages in May, 6 July were the flower bud phase, and 7 Augusts were flowering and boll-setting period, and 8 October were the term of opening bolls.
In fertilising, mainly accounting for the 10% of total dose seedling stage, the flower bud phase accounts for 30%, and flowering and boll-setting period accounts for
60%.Seedling stage joins a small amount of phosphorus potash fertilizer based on fertilizer and available nitrogen, flower bud fertilizer with available nitrogen, flower
Bell fertilizer mainly N,P,K fertilizers is used in mixed way.Middle and lower reaches cotton region, the Yangtze river basin include Hubei,
Hunan, Jiangxi, Anhui, Jiangsu Deng Shi China second largest cotton producing region in addition to Xinjiang cotton.
Essentialspecies implant model grows cotton based on wheat (oily) set, and its Main Cultivation management mode is wheat (oily)
Set grows cotton, and the problem that cotton region, the middle and lower reach of Yangtze River is generally primarily present is, does not joins according to science
Applying fertilizer and repeatedly apply fertilizer in side, labor intensity is bigger, mixes up district's recruitment contradiction in rice cotton especially and dashes forward
Going out, therefore, invention is a kind of, and formula is reasonable, fertilizer efficiency is stable, flower bud is fertile and Hua Lingfei can merge and uses
Special fertilizer one to be scheduled on cotton region, the middle and lower reach of Yangtze River the most necessary.
General every 667m2 produces cotton double centner needs absorbed nitrogen 78 kilograms, phosphorus from soil
46 kilograms, 7 15 kilograms of potassium.Research shows, in Cotton Gossypii heap, trace element demand is the biggest,
Particularly Yangtze river basin cotton is sensitive to boron element, and the compound fertilizer circulated in the market is general
Without middle trace element, fertilizer efficiency is short, and nutritional labeling is uneven, and utilization rate of fertilizer is low, and wants many
Secondary fertilising, relatively big to cotton root system injury, affect Cotton Gossypii normal growth, to output of cotton quality
And comprehensive benefit impact is bigger.
At present, fertilizer synergistic technology is generally accomplished in that first, utilizes inhibitor
The activity of technical controlling soil enzyme, thus control conversion and the form of fertilizer, reduce loss, prolong
Long fertilizer efficiency period, increases operation rate；Second, utilize organic and inorganic thing film-coating technique, control fertilizer
Material contacts with moisture, slows down its dissolution velocity, thus reduces loss, increases operation rate.But
Be, both technology fertilizer long-lasting on act on relatively big, crop single-dose application can be realized and exempt from
Topdress production, but in the fertilizer short period, synergism performance does not highlights, especially at the plant growth initial stage
Effect is the most notable.
High-concentration nano-carbon cotton special fertilizer as entitled in patent of invention CN102491815B and
Preparation method, this invention formula is reasonable, but slow controlled-release effect is undesirable, on ground, the middle and lower reach of Yangtze River
Cotton field, district still needs to repeatedly use；And for example the entitled Cotton Gossypii of patent of invention CN101244959B is special
Fertilizer, only focuses on the proportioning of three big elements, the special soil of middle trace element general lack of and Cotton Gossypii
Sensitive elements boron, zinc entirely without, be difficult to improve output of cotton.
Summary of the invention
The first object of the present invention is to overcome the weak point of above-mentioned existing background technology, and carries
For a kind of In Middle And Lower Reaches of Changjiang River fertilizer special for cotton.
The second object of the present invention is to provide this In Middle And Lower Reaches of Changjiang River fertilizer special for cotton
Preparation method.
The experiment proved that: be applied to polymeric amino acid in fertilizer production be modified fertilizer,
Utilize polymer and nutrient ion complexation, form organic copolymer analog active substance,
Improve rhizosphere nutrient density, reduce and run off, improve utilization rate of fertilizer, common fertilizer can be overcome
Can not the contradiction that utilizes of efficient absorption in nutrient loss is too fast with the crop short time in a short time, it is provided that
One can prevent nutrient loss in a short time, improves nutrientuse efficiency, meets crop in a short time
The fertilizer synergistic technology that nutrient is quick, efficient absorption needs.Meanwhile, activated carbon and combination of zeolites
Nutritional labeling in fertilizer can be carried out long-term gridding absorption, improve utilization rate of fertilizer.
The first object of the present invention is reached by following measure: In Middle And Lower Reaches of Changjiang River is cotton
Flower special fertilizer, it is characterised in that: it is made up of following component: 400 550 parts by weight of urea,
200 300 weight portion calcium superphosphate, 200 350 weight portion potassium chloride, 50 150 weight portion phosphorus
Acid one ammonium, 30 100 parts by weight of phosphoric acid potassium dihydrogens, 15 parts by weight of ferrous sulfate, 15 weight
Part zinc sulfate, 0.5 3 weight portion EDTA Chelated Manganeses, 0.5 2 weight portion Boraxs, 0.1 1 weight
Part ammonium molybdate, 0.25 0.5 weight portion Yield Increase In Cotton bacterium, 0.005 0.01 weight parts of polymer amino
Acid, 10 15 parts by weight of activated carbon, 15 weight portion zeolites；
Described carbamide is small particle urea, wherein nitrogen content 46%, and particle diameter is
0.85mm‐2.80mm；
Described potassium dihydrogen phosphate is white fine crystals, and wherein P2O5 proportion is 52%, K2O
Proportion is 34%；
The white powder of described potassium chloride, wherein K2O proportion is 60% 62%；
Described MAP is common powdery monoammonium phosphate, and total content is 60%；Wherein nitrogen content
Being 12%, P2O5 content is 48%；
Described calcium superphosphate is powdery, and P2O5 content is 15%；
Described ferrous phosphate, zinc sulfate, EDTA Chelated Manganese, Borax, ammonium molybdate are powder
Shape or grain, reach Grade A standard；
It is wide spectrum yield increasing fungus that described Cotton Gossypii produces bacterium, genus bacillus, bacteria containing amount 30,000,000,000/
Gram.
The polymerization content of glutamic acid 40% of described polymeric amino acid, for Grade A；
Described activated carbon is powder, and zeolite is light gray powder；
In technique scheme, described In Middle And Lower Reaches of Changjiang River fertilizer special for cotton is by following group
Part composition: 500 parts by weight of urea, 200 weight portion calcium superphosphate, 200 weight portion potassium chloride,
50 parts by weight of phosphoric acid potassium dihydrogens, 32 parts by weight of phosphoric acid one ammoniums, 1 parts by weight of ferrous sulfate, 1 weight
Amount part zinc sulfate, 0.5 weight portion EDTA Chelated Manganese, 1 weight portion Borax, 0.1 weight portion molybdenum
Acid ammonium, 0.25 weight portion Yield Increase In Cotton bacterium, 0.005 weight parts of polymer aminoacid, 10 weight portions
Activated carbon, 5 weight portion zeolites.
In technique scheme, described In Middle And Lower Reaches of Changjiang River fertilizer special for cotton is by following group
Part composition: 420 parts by weight of urea, 300 weight portion calcium superphosphate, 280 weight portion potassium chloride,
150 parts by weight of phosphoric acid potassium dihydrogens, 100 parts by weight of phosphoric acid one ammoniums, 1 parts by weight of ferrous sulfate, 2
Parts sulfuric acid zinc, 0.5 weight portion EDTA Chelated Manganese, 2 weight portion Boraxs, 0.1 weight portion
Ammonium molybdate, 0.25 weight portion Yield Increase In Cotton bacterium, 0.005 weight parts of polymer aminoacid, 10 weight
Part activated carbon, 5 weight portion zeolites.
The second object of the present invention is reached by following measure: under preparing in described the Changjiang river
The method of trip area fertilizer special for cotton, it is characterised in that it comprises the steps:
(1) by the carbamide of 1/3 weight portion through high-temperature fusion to 130 145 DEG C, buffering is put into
In groove.
(2) will residue carbamide, potassium dihydrogen phosphate, potassium chloride, MAP, calcium superphosphate,
Ferrous sulfate, zinc sulfate, EDTA Chelated Manganese, Borax, molybdenum propylhomoserin, polymeric amino acid, work
Property after charcoal, zeolite, Yield Increase In Cotton bacterium count weight respectively, send in agitator according to weight ratio and fill
Divide mixing, after screening, send into rotary drum granulator pelletize.
(3) urea solution in dashpot is sprayed directly on on pelletize bed through dosing pump pressurization, urine
Fully wrap with Chemical Mixed Fertilizer grain, then get final product metering packing after cooled screening.
It is an advantage of the current invention that: 1, nutrient is comprehensive, fertilizer equalizes, and can meet Cotton Gossypii raw
The phase of educating needs fertilizer.Polymeric amino acid of the present invention is fertilizer synergist, and activated carbon zeolite etc. is control helplessness
Agent, can increase fertilizer efficiency, effectively reduces nutrient loss, available nutrient in chelating soil.Improve fertilizer
Material utilization rate；Add Yield Increase In Cotton bacterium and can improve Cotton Soil structure, strengthen soil activation,
Phosphorus releases potassium, fixing nutrient, increases yield and improving quality；2, fertiliser granulates of the present invention is uniform,
Fertilizer nutrient equalizes；3, Cotton Gossypii control of the present invention mistake special fertilizer can subtract in cotton region, the middle and lower reach of Yangtze River
Few access times and consumption, merge fertile for flower bud and flower bell fertilizer, reduce labour cost, reduce work
Intensity, improves utilization rate of fertilizer, improves Cotton Gossypii comprehensive benefit；4, the present invention is without " three wastes "
Discharge, meets environmental requirement；5, product good water solubility of the present invention, fertilizer efficiency period is long.
Accompanying drawing explanation
Fig. 1 is that fertilizer special for cotton nutrients release in embodiment, the release of common fertilizer nutrient and Cotton Gossypii are supported
Divide absorbing rule curve chart.Wherein, thick line is common fertilizer nutrient release rule curve, middle thick line
For Controlled Release Fertilizer nutrient element releasing rule curve, fine rule is the law of nutritive absorption curve of Cotton Gossypii, horizontal seat
Mark is the time after sowing cotton seed, and vertical coordinate is nutrient quantity.
Detailed description of the invention
Describe the performance of the present invention in detail with embodiment below in conjunction with the accompanying drawings, but they are not
Constitute limitation of the invention, the most for example.Simultaneously will by explanation advantages of the present invention
Become more fully apparent with easy to understand.
Understand refering to Fig. 1: special-purpose control-release fertilizer Nitrogen Release curve of the present invention is closer to sweet
Sugarcane Law of Nitrogen Absorption curve, illustrates that nutrient has reached effective slow release effect.
In Middle And Lower Reaches of Changjiang River of the present invention fertilizer special for cotton, it is characterised in that: by following component group
Become: 400 550 parts by weight of urea, 200 300 weight portion calcium superphosphate, 200 350 weight portions
Potassium chloride, 50 150 parts by weight of phosphoric acid one ammoniums, 30 100 parts by weight of phosphoric acid potassium dihydrogens, 15 weights
Amount part ferrous sulfate, 15 parts sulfuric acid zinc, 0.5 3 weight portion EDTA Chelated Manganeses, 0.5 2
Weight portion Borax, 0.1 1 weight portion ammonium molybdates, 0.25 0.5 weight portion Yield Increase In Cotton bacterium,
0.005 0.01 weight parts of polymer aminoacid, 10 15 parts by weight of activated carbon, 15 weight portion zeolites；
In technique scheme, described In Middle And Lower Reaches of Changjiang River fertilizer special for cotton, by as follows
Component forms: 500 parts by weight of urea, 200 weight portion calcium superphosphate, 200 weight portion chlorinations
Potassium, 50 parts by weight of phosphoric acid potassium dihydrogens, 32 parts by weight of phosphoric acid one ammoniums, 1 parts by weight of ferrous sulfate,
1 parts sulfuric acid zinc, 0.5 weight portion EDTA Chelated Manganese, 1 weight portion Borax, 0.1 weight portion
Ammonium molybdate, 0.25 weight portion Yield Increase In Cotton bacterium, 0.005 weight parts of polymer aminoacid, 10 weight
Part activated carbon, 5 weight portion zeolites.
In technique scheme, described In Middle And Lower Reaches of Changjiang River fertilizer special for cotton, by as follows
Component forms: 420 parts by weight of urea, 300 weight portion calcium superphosphate, 280 weight portion chlorinations
Potassium, 150 parts by weight of phosphoric acid potassium dihydrogens, 100 parts by weight of phosphoric acid one ammoniums, 1 parts sulfuric acid are sub-
Ferrum, 2 parts sulfuric acid zinc, 0.5 weight portion EDTA Chelated Manganese, 2 weight portion Boraxs, 0.1
Weight portion ammonium molybdate, 0.25 weight portion Yield Increase In Cotton bacterium, 0.005 weight parts of polymer aminoacid,
10 parts by weight of activated carbon, 5 weight portion zeolites.
The method preparing above-mentioned In Middle And Lower Reaches of Changjiang River fertilizer special for cotton, it is characterised in that its bag
Include following steps:
(1) by the carbamide of 1/3 weight portion through high-temperature fusion to 130 145 DEG C, buffering is put into
In groove.
(2) will residue carbamide, potassium dihydrogen phosphate, potassium chloride, MAP, calcium superphosphate,
Ferrous sulfate, zinc sulfate, EDTA Chelated Manganese, Borax, molybdenum propylhomoserin, polymeric amino acid, work
Property after charcoal, zeolite, Yield Increase In Cotton bacterium count weight respectively, send in agitator according to weight ratio and fill
Divide mixing, after screening, send into rotary drum granulator pelletize.
(3) urea solution in dashpot is sprayed directly on on pelletize bed through dosing pump pressurization, urine
Fully wrap with Chemical Mixed Fertilizer grain, then get final product metering packing after cooled screening.
Embodiment 1
In Middle And Lower Reaches of Changjiang River fertilizer special for cotton, by 500 parts by weight of urea, 200 weight portion mistakes
Calcium phosphate, 200 weight portion potassium chloride, 50 parts by weight of phosphoric acid potassium dihydrogens, 32 parts by weight of phosphoric acid
One ammonium, 1 parts by weight of ferrous sulfate, 1 parts sulfuric acid zinc, 0.5 weight portion EDTA Chelated Manganese,
1 weight portion Borax, 0.1 weight portion ammonium molybdate, 0.25 weight portion Yield Increase In Cotton bacterium, 0.005 weight
Amount part polymeric amino acid, 10 parts by weight of activated carbon, 5 weight portion zeolite compositions.
Its preparation method comprises the steps:
(1) by the carbamide of 1/3 weight portion through high-temperature fusion to 130 145 DEG C, buffering is put into
In groove.
(2) will residue carbamide, potassium dihydrogen phosphate, potassium chloride, MAP, calcium superphosphate,
Ferrous sulfate, zinc sulfate, EDTA Chelated Manganese, Borax, molybdenum propylhomoserin, polymeric amino acid, work
Property after charcoal, zeolite, Yield Increase In Cotton bacterium count weight respectively, send in agitator according to weight ratio and fill
Divide mixing, after screening, send into rotary drum granulator pelletize.
(3) urea solution in dashpot is sprayed directly on on pelletize bed through dosing pump pressurization, urine
Fully wrap with Chemical Mixed Fertilizer grain, then get final product metering packing after cooled screening.
Embodiment 2
In Middle And Lower Reaches of Changjiang River fertilizer special for cotton, is made up of following component: 420 parts by weight of urea,
300 weight portion calcium superphosphate, 280 weight portion potassium chloride, 150 parts by weight of phosphoric acid potassium dihydrogens,
100 parts by weight of phosphoric acid one ammoniums, 1 parts by weight of ferrous sulfate, 2 parts sulfuric acid zinc, 0.5 weight
Part EDTA Chelated Manganese, 2 weight portion Boraxs, 0.1 weight portion ammonium molybdate, 0.25 weight portion Cotton Gossypii
Yield increasing fungus, 0.005 weight parts of polymer aminoacid, 10 parts by weight of activated carbon, 5 weight portion zeolites.
Its preparation method such as embodiment 1.
Embodiment 3
In Middle And Lower Reaches of Changjiang River fertilizer special for cotton, is made up of following component: 550 parts by weight of urea,
250 weight portion calcium superphosphate, 300 weight portion potassium chloride, 100 parts by weight of phosphoric acid potassium dihydrogens,
80 parts by weight of phosphoric acid one ammoniums, 5 parts by weight of ferrous sulfate, 5 parts sulfuric acid zinc, 3 weight portions
EDTA Chelated Manganese, 0.5 weight portion Borax, 0.5 weight portion ammonium molybdate, 0.5 weight portion Cotton Gossypii increase
Produce bacterium, 0.01 weight parts of polymer aminoacid, 15 parts by weight of activated carbon, 1 weight portion zeolite.
Its preparation method such as embodiment 1.
Embodiment 4
In Middle And Lower Reaches of Changjiang River fertilizer special for cotton, is made up of following component: 400 parts by weight of urea,
200 weight portion calcium superphosphate, 350 weight portion potassium chloride, 50 parts by weight of phosphoric acid potassium dihydrogens, 50
Parts by weight of phosphoric acid one ammonium, 5 parts by weight of ferrous sulfate, 3 parts sulfuric acid zinc, 2 weight portion EDTA
Chelated Manganese, 1 weight portion Borax, 0.5 weight portion ammonium molybdate, 0.5 weight portion Yield Increase In Cotton bacterium,
0.008 weight parts of polymer aminoacid, 12 parts by weight of activated carbon, 2 weight portion zeolites.
Its preparation method such as embodiment 1.
Benefit case
With 22 10 20 special fertilizers of the present invention, 22 10 20 common fertile, 18 18 18 be commonly combined
Fertilizer arranges 2 process, 3 groups of repetitions, 1 comparison.
This test site is farm, Taihu Lake, Jingzhou City of Hubei Province, and kind is miscellaneous cotton No. 21 of Hubei Province.
This result of the test such as following table:
Table 1 output of cotton is constituted and yield result
In this experiment, mu strain number is 1400 strains, and single basal munure is the average bell number of every strain, bell
Being heavily each bell unginned cotton's weight, ginning outturn is that gined cotton accounts for the proportion of weight in unginned cotton.From above-mentioned table,
Can be seen that same 22 8 20 formula are containing polymeric amino acid synergist and the auxiliary agent such as Linesless charcoal, zeolite
Compound fertilizer increases production 34.8 kilograms than without auxiliary agent compound fertilizer mu, increases by 11.59%；Containing polymerization ammonia
Base acid synergist Linesless charcoal and zeolite builder compound fertilizer are than common 18 18 18 compound fertilizer volume increase 74.1
Kilogram, increase by 28.4%.Factor for increasing output the most single basal munure difference is notable, and bell weight, clothing
Phase-splitting difference is little.
Other part not being described in detail is prior art.
Claims (3)
1. In Middle And Lower Reaches of Changjiang River fertilizer special for cotton, it is characterised in that: it is made up of following component:
400 550 parts by weight of urea, 200 300 weight portion calcium superphosphate, 200 350 weight portion chlorinations
Potassium, 50 150 parts by weight of phosphoric acid one ammoniums, 30 100 parts by weight of phosphoric acid potassium dihydrogens, 15 weight portions
Ferrous sulfate, 15 parts sulfuric acid zinc, 0.5 3 weight portion EDTA Chelated Manganeses, 0.5 2 weight
Part Borax, 0.1 1 weight portion ammonium molybdates, 0.25 0.5 weight portion Yield Increase In Cotton bacterium, 0.005 0.01
Weight parts of polymer aminoacid, 10 15 parts by weight of activated carbon, 15 weight portion zeolites；
The method preparing described In Middle And Lower Reaches of Changjiang River fertilizer special for cotton, it is characterised in that it includes
Following steps:
(1) by the carbamide of 1/3 weight portion through high-temperature fusion to 130 145 DEG C, buffering is put into
In groove；
(2) will residue carbamide, potassium dihydrogen phosphate, potassium chloride, MAP, calcium superphosphate,
Ferrous sulfate, zinc sulfate, EDTA Chelated Manganese, Borax, molybdenum propylhomoserin, polymeric amino acid, work
Property after charcoal, zeolite, Yield Increase In Cotton bacterium count weight respectively, send in agitator according to weight ratio and fill
Divide mixing, after screening, send into rotary drum granulator pelletize；
(3) urea solution in dashpot is sprayed directly on on pelletize bed through dosing pump pressurization, urine
Fully wrap with Chemical Mixed Fertilizer grain, then get final product metering packing after cooled screening.
In Middle And Lower Reaches of Changjiang River the most according to claim 1 fertilizer special for cotton, its feature
Be: be made up of following component: 500 parts by weight of urea, 200 weight portion calcium superphosphate, 200
Weight portion potassium chloride, 50 parts by weight of phosphoric acid potassium dihydrogens, 32 parts by weight of phosphoric acid one ammoniums, 1 weight
Part ferrous sulfate, 1 parts sulfuric acid zinc, 0.5 weight portion EDTA Chelated Manganese, 1 weight portion boron
Sand, 0.1 weight portion ammonium molybdate, 0.25 weight portion Yield Increase In Cotton bacterium, 0.005 weight parts of polymer ammonia
Base acid, 10 parts by weight of activated carbon, 5 weight portion zeolites.
In Middle And Lower Reaches of Changjiang River the most according to claim 1 fertilizer special for cotton, its feature
Be: be made up of following component: 420 parts by weight of urea, 300 weight portion calcium superphosphate, 280
Weight portion potassium chloride, 150 parts by weight of phosphoric acid potassium dihydrogens, 100 parts by weight of phosphoric acid one ammoniums, 1 weight
Amount part ferrous sulfate, 2 parts sulfuric acid zinc, 0.5 weight portion EDTA Chelated Manganese, 2 weight portions
Borax, 0.1 weight portion ammonium molybdate, 0.25 weight portion Yield Increase In Cotton bacterium, 0.005 weight parts of polymer
Aminoacid, 10 parts by weight of activated carbon, 5 weight portion zeolites.
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| CN106631441A (en) * | 2016-12-19 | 2017-05-10 | 钦州市科学技术开发中心 | Fertilizer synergist and preparation method thereof |
| CN107512993A (en) * | 2017-10-24 | 2017-12-26 | 山东省农业科学院 | A kind of cotton flowering and boll-setting period dedicated fertilizer and preparation method thereof |
| CN107698322A (en) * | 2017-10-25 | 2018-02-16 | 四川省汇力肥业有限公司 | A kind of swollen fruit complex fertilizer of Humic acid synergistic and preparation method thereof |
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| CN1215713A (en) * | 1997-10-27 | 1999-05-05 | 程礼华 | Plant hormone contg. mixed microelement fertilizer and its producing method |
| CN101318865A (en) * | 2008-07-16 | 2008-12-10 | 张迎秋 | Fertilizer for soil sterilization for preventing and controlling continuous cropping disease |
| CN101538182B (en) * | 2009-04-15 | 2012-12-12 | 吴成祥 | Functional compound fertilizer, production device and preparation method thereof |
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