[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

CN107935712A - A kind of organic composite fertilizer with amino acid - Google Patents

A kind of organic composite fertilizer with amino acid Download PDF

Info

Publication number
CN107935712A
CN107935712A CN201711278640.9A CN201711278640A CN107935712A CN 107935712 A CN107935712 A CN 107935712A CN 201711278640 A CN201711278640 A CN 201711278640A CN 107935712 A CN107935712 A CN 107935712A
Authority
CN
China
Prior art keywords
fertilizer
organic
parts
soil
amino acid
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.)
Withdrawn
Application number
CN201711278640.9A
Other languages
Chinese (zh)
Inventor
付裕
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chengdu Dianshi Chuangxiang Technology Co Ltd
Original Assignee
Chengdu Dianshi Chuangxiang Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chengdu Dianshi Chuangxiang Technology Co Ltd filed Critical Chengdu Dianshi Chuangxiang Technology Co Ltd
Priority to CN201711278640.9A priority Critical patent/CN107935712A/en
Publication of CN107935712A publication Critical patent/CN107935712A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05CNITROGENOUS FERTILISERS
    • C05C9/00Fertilisers containing urea or urea compounds
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05GMIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G3/00Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05GMIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G3/00Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • C05G3/80Soil conditioners

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pest Control & Pesticides (AREA)
  • Soil Sciences (AREA)
  • Fertilizers (AREA)

Abstract

The invention discloses a kind of organic composite fertilizer with amino acid, including organic fermentation liquid according to 40 55 parts of weight ratio part, solute and the solvent quality ratio of organic fermentation liquid are 1:93 97, the solvent is water, 9 13 parts of chemical fertilizer, and the chemical fertilizer includes phosphate fertilizer, and the phosphate fertilizer is at least one of water soluble phosphorous fertilizer, citrate acid soluble phosphatic fertilizer, difficultly soluble phosphatic fertilizer, 8 12 parts of organic matter, 4 5.3 parts of potassium fulvate remaining be farm manure;The farm manure includes organic fertilizer and inorganic fertilizer;The inorganic fertilizer includes plant ash and ammonium hydroxide;The fermented waste fluid includes trace element and organic matter.Organic farm manure in the present invention can promote the growth of microorganism effectively while fertility is provided for soil, positive improvement soil property, adjust the pH value of soil, can avoid soil acidification caused by long-time service single chemical fertilizer, it is hardened the problem of.

Description

A kind of organic composite fertilizer with amino acid
Technical field
The present invention relates to fertilizer field, is a kind of organic composite fertilizer with amino acid specifically.
Background technology
The main path of plant absorption nutrient has two, i.e. root and leaf.Crop mainly absorbs soil or battalion by root Nutrition supply growth and development of plants in nutrient solution, in addition to root system, crop can also be inhaled by cauline leaf (especially blade) Adopt point, the phenomenon of this non-Root Absorption nutrition is exactly the exoroot nutrition of crop during plant growth, to except crop root The measure of nutrient absorption surface fertilising in addition is generally exactly foliage dressing.
A variety of nutrient dificiency phenomenons such as not only potassium deficiency but also magnesium deficiency are shown in many Soils In The Regions in China;In addition in recent years, The amount of application of nitrogen phosphorus fertilizer increases year by year, the opposite reduction of organic fertilizer, a variety of nutrient dificiency phenomenon getting worses of potassium deficiency magnesium deficiency, into To influence the limiting factor that crop yield improves.Therefore can targetedly be had using a great number of elements and some middle and trace elements Effect improves yield and improving quality.
Chemical fertilizer is the fertilizer of widely used crops.N P and K is that most important in soil have direct growth for plant The fertilizer of facilitation, but when the soil nitrogen, phosphorus or potassium cannot meet the needs of crop growth, can apply it is nitrogenous, The chemical fertilizer of phosphorus or potassium.But chemical fertilizer also produces negative consequence while crop yield is improved to soil.First, administrationization Fertilizer causes to add heavy metal and other noxious materials in soil.Heavy metal may be included by preparing in the raw material of chemical fertilizer.In addition, Heavy metal may also be introduced by preparing the technique of chemical fertilizer.This also to include heavy metal in chemical fertilizer.For example, the raw material for preparing phosphate fertilizer can To be rock phosphate in powder.Rock phosphate in powder includes fluorine and arsenic.Second, chemical fertilizer reduces the quantity and activity of Soil Microorganism.In soil Microorganism has played important function in decomposition organic matter, decomposition mineral matter and degraded harmful substance etc..Third, chemical fertilizer So that soil acidification.Specifically, the nitrification of nitrogenous fertilizer in the soil causes to generate nitrate in soil, so that soil Acidifying.Soil acidification changes the form of nutrient in soil, reduces nutrient availability, and toxic action is produced to crops.
If it is possible to the permanent fertility for keeping soil is taken into account at the same time, to support the plant of plantation to be capable of the life of health It is long, while can avoid soil that the change of character occurs because of the substantial amounts of chemical fertilizer of long-time service again, it is soil acidification, it is hardened, very Lie waste to causing soil not possess the condition of plantation, desertify.
The content of the invention
It is an object of the invention to provide a kind of organic composite fertilizer with amino acid, for solving existing soil master To use chemical fertilizer cause soil to be easily acidified or hardened, reduce the effective fertility of soil, thus constrain plantation vegetation or The problem of fast-growth of person vegetables.Meanwhile value is avoided using traditional farm manure as farm manure usage amount existing for the source of manure It is excessive, the problem of causing the source of manure insufficient, meanwhile, single farm manure fattening slowly effect, fertility supply is uneven, it is impossible to targetedly fits For each vegetables or vegetation.
In order to solve the problems, such as the above-mentioned existing vegetation growth for influencing soil property on fertilizer and planting, the present invention carries A kind of fertilizer of new formulation has been supplied, existing chemical fertilizer and farm manure can be used in combination, and has overcome the shortcomings of existing fertilizer, The lasting supply to vegetation fertility can be reached, and the change to soil property can be avoided, make soil become acidifying and it is hardened The problem of.Specific fertilizer provided by the invention is as follows:
A kind of organic composite fertilizer with amino acid, including organic fermentation liquid according to 40-55 parts of weight ratio part, it is described to have The solute of machine fermentation liquid is 1 with solvent quality ratio:93-97, the solvent are water, 9-13 parts of chemical fertilizer, are wrapped in the chemical fertilizer Including phosphate fertilizer, the phosphate fertilizer is at least one of water soluble phosphorous fertilizer, citrate acid soluble phosphatic fertilizer, difficultly soluble phosphatic fertilizer, 8-12 parts of organic matter, 4-5.3 parts of potassium fulvate remaining be farm manure;The farm manure includes organic fertilizer and inorganic fertilizer;The inorganic fertilizer Including plant ash and ammonium hydroxide;
Organic fermentation liquid is close using the progress of at least one of stalk of the water content more than 50%, cornstalk, sorghum stalk The fermented waste fluid that anaerobic fermentation obtains after 7-10 days is closed, the fermented waste fluid includes trace element and organic matter;
The trace element includes magnesium, iron, zinc;The organic matter is amino acid and vitamin;The iron includes iron oxide, sulfuric acid At least one of ferrous and iron ammonium sulfate, the magnesium include at least one of magnesia, magnesium sulfate.
In order to preferably realize the present invention, on the basis of said components and content, further preferably, the chemical fertilizer bag Include nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, urea;The nitrogenous fertilizer is in ammonium fertilizer, nitrate fertilizer, ammonium state nitrate fertilizer and amide nitrogen fertilizer At least one.
In order to preferably realize the present invention, on the basis of said components and content, further preferably, the nitrogenous fertilizer, Phosphate fertilizer, potash fertilizer, the mass ratio of urea are 1:4:1:2.
In order to preferably realize the present invention, on the basis of said components and content, further preferably, the nitrogenous fertilizer, Phosphate fertilizer, potash fertilizer, the mass ratio of urea are 1:1:4:2.
In order to preferably realize the present invention, on the basis of said components and content, further preferably, the organic matter It is 1 ~ 3 including weight ratio:2~6:2 ~ 3 ε-polylysine, methene butanedioic acid and magnesium acid.
In order to preferably realize the present invention, on the basis of said components and content, further preferably, the farm manure Including using pbw, for 20 ~ 36 parts of excrement, 18 ~ 40 parts of rubbish from cooking, remaining is barnyard manure.
Compared with prior art, the present invention haing the following advantages and beneficial effect:
(1)Organic farm manure in the present invention can promote the growth of microorganism effectively while fertility is provided for soil, Positive improvement soil property, adjusts the pH value of soil, can avoid soil acidification caused by long-time service single chemical fertilizer, hardened The problem of.
(2)Magnesium, iron, the zinc microelement that there is China's most area soil to lack in the present invention, can be good at mending The trace element of vegetation growth indispensability in soil is filled, yield is improved during vegetation growth, improves the fruit product for having fruit vegetation Matter.
(3)The potassium fulvate having in the present invention is a kind of polycondensation of multivalence phenolic aromatic compound and nitrogen compound Thing, it can reduce the activity of chromium ion, effectively reduce absorption of the crop to chromium ion with chromium ion organic complex, absorption, Reduce deposition of the chromium in the histoorgan in human body.
Embodiment
The present invention is described in further detail with reference to embodiment, but the implementation of the present invention is not limited to this.
Embodiment 1:
A kind of organic composite fertilizer with amino acid, including organic fermentation liquid according to 40-55 parts of weight ratio part, it is described to have The solute of machine fermentation liquid is 1 with solvent quality ratio:93-97, the solvent are water, 9-13 parts of chemical fertilizer, are wrapped in the chemical fertilizer Including phosphate fertilizer, the phosphate fertilizer is at least one of water soluble phosphorous fertilizer, citrate acid soluble phosphatic fertilizer, difficultly soluble phosphatic fertilizer, 8-12 parts of organic matter, 4-5.3 parts of potassium fulvate remaining be farm manure;The farm manure includes organic fertilizer and inorganic fertilizer;The inorganic fertilizer Including plant ash and ammonium hydroxide;
Organic fermentation liquid is close using the progress of at least one of stalk of the water content more than 50%, cornstalk, sorghum stalk The fermented waste fluid that anaerobic fermentation obtains after 7-10 days is closed, the fermented waste fluid includes trace element and organic matter;
The trace element includes magnesium, iron, zinc;The organic matter is amino acid and vitamin;The iron includes iron oxide, sulfuric acid At least one of ferrous and iron ammonium sulfate, the magnesium include at least one of magnesia, magnesium sulfate.
Anaerobic fermentation processing is carried out by using conventional stalk, cornstalk and sorghum stalk, can be sufficiently by crude fibre Green material nutrient component passes through being dissolved in fermented waste fluid after fermentation.Organic matter therein is the main source of soil nutrient;Promote Soil texture is formed, and improves soil physical properties, improves the fertilizer-preserving ability and cushion performance of soil, and humus is lived with physiology Property, crop growth can be promoted, humus has complexing, helps to eliminate the pollution of soil.
Suitable chemical fertilizer is still added in the present invention, the species of chemical fertilizer can be added according to the actual needs, by There is good weight-improving effect in chemical fertilizer, fertilizer efficiency is fast, can the existing nitrogenous fertilizer of use of selectivity, phosphate fertilizer, potash fertilizer, micro- fertilizer, multiple Hefei material etc., they have the characteristics that following some common:Component is simple, and nutrient content is high;Fertilizer efficiency is fast, and fertile strength is violent;Some fertilizer Material has acid-base reaction;Generally be free of organic matter, the effect of no Soil building.Chemical fertilizer species is more, property and application process Differ greatly.But what deserves to be explained is, since chemical fertilizer is the prior art, the chemical fertilizer species of different soil demands is different, because This can be selected according to actual conditions in the present embodiment, but content accounting must be carried out with defined accounting, otherwise can not Reach to take into account and increase soil fertility, and the technique effect that can be kept soil from packing together.
The principal element that iron influences plant Fe availability in soil has soil pH, organic matter, oxidation-reduction potential and supports / interaction etc..In order to further improve the utilization rate of ferro element, make the validity and theoretical value of actual use The problem of being not much different, being not in valid data distortion, also particularly adds substantial amounts of organic matter in fertilizer of the present invention, Purpose be in order to avoid how some deserts, in soil in itself there are organic matter it is deficient the problem of, cause ferro element to have Effect plays a role, because ferro element can participate in the Chlorophyll synthesis prepared, if the shortage of ferro element will directly reduce system Standby Chlorophyll synthesis efficiency, influences the photosynthesis prepared, causes the growth of preparation abnormal.
Zinc is in plant primarily as the metal activation agent of enzyme.The zinc-containing metal enzyme found earliest is carbonic anhydrase, This enzyme is distributed very extensively in plant, is primarily present in chloroplaset.It is catalyzed the aquation of carbon dioxide, promotes photosynthetic The fixation of carbon dioxide in effect, zinc-deficiency make the activity reduction of carbonic anhydrase.Therefore, formation of the zinc to carbohydrate is important 's.
It is related with photosynthesis that magnesium elements play the role of most important in plant.Mg is just be unable to do without in chlorophyll molecule Its blade of the plant of magnesium deficiency is in light green, that is, illustrates that chlorophyll molecule is formed and be obstructed, very unfavorable to plant growth.Magnesium is that plant must Need element.Magnesium can promote the conversion and operating of carbohydrate, accelerate vine growth and development, promote precocious;Magnesium is to plant reproductive The formation and development of organ play an important role, and promote pollen germination, stimulate pollen tube growth, have special influence to plant insemination, Be conducive to Seed Development, reduce the effect such as fruit drop;Magnesium can also increase the resistance of plant, strengthen the drought resisting, disease-resistant of crop Ability, prevents terminal bud brown rot, heartrot etc..Magnesium element is in liberal supply, and plant growth is in great numbers, and full seed, root system is good, and good harvest has Ensure.If magnesium element is insufficient, plant strain growth can be caused bad, the quality and yield of product decline;During serious magnesium deficiency, even No kernels or seeds are gathered, as in a year of scarcity.Plant magnesium deficiency is mainly manifested in the positions such as leaf, stem, growing point, flower, fruit.New phyllomorphosis occurs, diminishes, become It is broken etc.;Stem shortens, serious generation stem atrophy symptom;Growing point necrosis, plant become shape of growing thickly, and petiole, stem, fruit occur to divide Crack;Bloom shaky, fruit drop;Fruit is often malformed fruit, ghost.
The addition of farm manure can will contain various a large amount of and Meso- and micro-nutrients, and can stimulate root system containing some The material of growth and various beneficial edaphons are brought into soil, and the shape of soil is effectively improved, and improve soil The fluffy degree and oxygen content of earth, further improve the fertility of soil.Improve soil texture:Contain abundant rotten plant in farm manure Acid, can promote the formation of soil aggregate structure, soil is become soft, improve soil moisture and air conditions, be given birth to beneficial to root system It is long;Increase soil fertilizer water retention property;Improve ground temperature.Promote beneficial microorganism activity and breeding etc. in soil.
Embodiment 2:
In order to preferably realize the present invention, on the basis of the component and content of embodiment 1, in the present embodiment, the chemical fertilizer includes Nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, urea;The nitrogenous fertilizer is in ammonium fertilizer, nitrate fertilizer, ammonium state nitrate fertilizer and amide nitrogen fertilizer It is at least one.
In order to preferably realize the present invention, on the basis of said components and content, in the present embodiment, the nitrogenous fertilizer, phosphorus Fertilizer, potash fertilizer, the mass ratio of urea are 1:4:1:2.
In order to preferably realize the present invention, on the basis of said components and content, in the present embodiment, the nitrogenous fertilizer, phosphorus Fertilizer, potash fertilizer, the mass ratio of urea are 1:1:4:2.
In order to preferably realize the present invention, on the basis of said components and content, in the present embodiment, the organic matter bag Weight ratio is included as 1 ~ 3:2~6:2 ~ 3 ε-polylysine, methene butanedioic acid and magnesium acid.
In order to preferably realize the present invention, on the basis of said components and content, in the present embodiment, the farm manure bag Include and use pbw 18 ~ 40 parts of rubbish from cooking, remaining is barnyard manure for 20 ~ 36 parts of excrement.
The above, is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, it is every according to Any simply modification, the equivalent variations made according to the technical spirit of the present invention to above example, each fall within the protection of the present invention Within the scope of.

Claims (6)

  1. A kind of 1. organic composite fertilizer with amino acid, it is characterised in that:Including organic hair according to 40-55 parts of weight ratio part Ferment solution, solute and the solvent quality ratio of organic fermentation liquid are 1:93-97, the solvent are water, 9-13 parts of chemical fertilizer, The chemical fertilizer includes phosphate fertilizer, and the phosphate fertilizer is at least one of water soluble phosphorous fertilizer, citrate acid soluble phosphatic fertilizer, difficultly soluble phosphatic fertilizer, 8- 12 parts of organic matter, 4-5.3 parts of potassium fulvate remaining be farm manure;The farm manure includes organic fertilizer and inorganic fertilizer Material;The inorganic fertilizer includes plant ash and ammonium hydroxide;
    Organic fermentation liquid is close using the progress of at least one of stalk of the water content more than 50%, cornstalk, sorghum stalk The fermented waste fluid that anaerobic fermentation obtains after 7-10 days is closed, the fermented waste fluid includes trace element and organic matter;
    The trace element includes magnesium, iron, zinc;The organic matter is amino acid and vitamin;The iron includes iron oxide, sulfuric acid At least one of ferrous and iron ammonium sulfate, the magnesium include at least one of magnesia, magnesium sulfate.
  2. A kind of 2. organic composite fertilizer with amino acid according to claim 1, it is characterised in that:The chemical fertilizer includes Nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, urea;The nitrogenous fertilizer is in ammonium fertilizer, nitrate fertilizer, ammonium state nitrate fertilizer and amide nitrogen fertilizer It is at least one.
  3. A kind of 3. organic composite fertilizer with amino acid according to claim 2, it is characterised in that:The nitrogenous fertilizer, phosphorus Fertilizer, potash fertilizer, the mass ratio of urea are 1:4:1:2.
  4. A kind of 4. organic composite fertilizer with amino acid according to claim 2, it is characterised in that:The nitrogenous fertilizer, phosphorus Fertilizer, potash fertilizer, the mass ratio of urea are 1:1:4:2.
  5. A kind of 5. organic composite fertilizer with amino acid according to claim 1, it is characterised in that:The organic matter bag Weight ratio is included as 1 ~ 3:2~6:2 ~ 3 ε-polylysine, methene butanedioic acid and magnesium acid.
  6. A kind of 6. organic composite fertilizer with amino acid according to claim 1, it is characterised in that:The farm manure bag Include and use pbw 18 ~ 40 parts of rubbish from cooking, remaining is barnyard manure for 20 ~ 36 parts of excrement.
CN201711278640.9A 2017-12-06 2017-12-06 A kind of organic composite fertilizer with amino acid Withdrawn CN107935712A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711278640.9A CN107935712A (en) 2017-12-06 2017-12-06 A kind of organic composite fertilizer with amino acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711278640.9A CN107935712A (en) 2017-12-06 2017-12-06 A kind of organic composite fertilizer with amino acid

Publications (1)

Publication Number Publication Date
CN107935712A true CN107935712A (en) 2018-04-20

Family

ID=61944966

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711278640.9A Withdrawn CN107935712A (en) 2017-12-06 2017-12-06 A kind of organic composite fertilizer with amino acid

Country Status (1)

Country Link
CN (1) CN107935712A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112374938A (en) * 2020-11-18 2021-02-19 董彬 Biological water-soluble fertilizer adopting kitchen waste composting technology and production method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112374938A (en) * 2020-11-18 2021-02-19 董彬 Biological water-soluble fertilizer adopting kitchen waste composting technology and production method thereof

Similar Documents

Publication Publication Date Title
CN106397032A (en) Special fertilizer for saline land peanut
CN103497020B (en) Biological activity micronutrient fertilizer for tobacco planting and preparation method thereof
CN105819962A (en) Leaf vegetable nutrition fertilizer and preparation method thereof
CN102557832B (en) Transpiration regulator for planting stocks in hilly lands and preparation method of transpiration regulator
CN115024147B (en) Fertilizing method for improving high-quality fruit rate of red crisp pears
CN114287196B (en) Method for synchronously improving acidity and compaction hardening of apple orchard soil
CN1216834C (en) Chelating type multielement composite plant nutritive liquid and its preparation method
CN107935773A (en) A kind of concentrated fertilizer kept soil from packing together
CN111533606A (en) Wheat special fertilizer synergistic with returning rice straw, preparation method and use method
CN117303984A (en) Neutral macroelement water-soluble fertilizer containing composite microbial agent and preparation method thereof
CN107935712A (en) A kind of organic composite fertilizer with amino acid
CN107935713A (en) A kind of soil with antibiotic improves fertilizer
CN108046953A (en) A kind of compound fertilizer for improving acidified soil
CN111440019A (en) Blueberry water-soluble fertilizer and preparation and application methods thereof
CN110754311B (en) Method for reducing salt and increasing yield of paddy rice planted in saline-alkali soil
CN114751776A (en) Mixed fungal fertilizer suitable for reduced fertilizer application of low-fertility farmland and application method
CN106905080A (en) One kind improvement nutrient formulation fertilizer
CN112174720A (en) Joint-pulling fertilizer for water-fertilizer integrated planting of corn and preparation method and application thereof
CN113185348A (en) Passion fruit organic-inorganic compound fertilizer and preparation method thereof
CN107840763A (en) A kind of compound fertilizer for corn base fertilizer
CN108046954A (en) A kind of multi-functional plant fertilizer with heteroauxin
CN107879859A (en) A kind of NEW TYPE OF COMPOSITE organic matter fermentation fertilizer
CN107963932A (en) A kind of multi-element fertilizer to be fermented using organic matter
CN107879858A (en) A kind of base fertilizer for being used to improve soil fluffy degree
CN107879811A (en) A kind of new and effective fattening fertilizer

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
WW01 Invention patent application withdrawn after publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20180420