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

CN108046916A - A kind of corn special bio medicine fertilizer and preparation method - Google Patents

A kind of corn special bio medicine fertilizer and preparation method Download PDF

Info

Publication number
CN108046916A
CN108046916A CN201711403418.7A CN201711403418A CN108046916A CN 108046916 A CN108046916 A CN 108046916A CN 201711403418 A CN201711403418 A CN 201711403418A CN 108046916 A CN108046916 A CN 108046916A
Authority
CN
China
Prior art keywords
parts
animal
manure
potassium
sulfate
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Withdrawn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
CN201711403418.7A
Other languages
Chinese (zh)
Inventor
袁梅芳
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CN201711403418.7A priority Critical patent/CN108046916A/en
Publication of CN108046916A publication Critical patent/CN108046916A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • C05G3/60Biocides or preservatives, e.g. disinfectants, pesticides or herbicides; Pest repellants or attractants
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05BPHOSPHATIC FERTILISERS
    • C05B1/00Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
    • C05B1/02Superphosphates
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05BPHOSPHATIC FERTILISERS
    • C05B17/00Other phosphatic fertilisers, e.g. soft rock phosphates, bone meal
    • 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
    • C05G3/90Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting the nitrification of ammonium compounds or urea in the soil

Landscapes

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

Abstract

The invention discloses a kind of corn special bio medicine fertilizer, are made of the raw material of following weight proportion:15 25 parts of chicken manure, 8 14 parts of pig manure, 8 14 parts of sheep manure, 10 15 parts of rice chaff, 8 14 parts of stalk, 6 12 parts of peat soil, 5 10 parts of animal bone powder, 35 parts of animal wool powder, 57 parts of leaf, 46 parts of mushroom residue, 13 16 parts of urea, 10 12 parts of calcium superphosphate, 12 14 parts of calcium nitrate, 8 10 parts of potassium sulfate, 0.08 0.12 parts of ammonium molybdate, 1.9 2.4 parts of copper sulphate, 0.8 1.2 parts of manganese sulfate, 35 parts of ferrous sulfate, 10 13 parts of potassium humate, 35 parts of egg-shell meal, 0.4 0.6 parts of glucose, 0.03 0.06 parts of borax, 10 12 parts of animal hair, 34 parts of microbial fermenters.Advantage of the present invention:Integrate fertilising and sterilization, it is at low cost, it is environment friendly and pollution-free.

Description

A kind of corn special bio medicine fertilizer and preparation method
Technical field
The present invention relates to agricultural biological fertilizer more particularly to a kind of corn special bio medicine fertilizer and preparation methods.
Background technology
The application of chemical fertilizer plays key effect to getting agricultural profit.However, due to chronic administration chemical fertilizer, it is organic Fertile insufficient, all kinds of nutrients ratio imbalances cause farmland ecological environment, soil physical and chemical property and soil to be subject to for biota Different degrees of destruction to a certain extent affects the quality of agricultural product.Therefore, chemical fertilizer pollution has become current generation One big public hazards of boundary, there is an urgent need to supplement the soil organism by artificial measure for the current soil resource present situation in China, it is ensured that agricultural kind Plant horizontal and crop products quality." ecological agriculture will be promoted by clearly being advocated in ten big countermeasures of China's ecological environmental protection Industry ", preserves the ecological environment and agricultural land soil, the production of promotion pollution-free healthy food, guarantee have the return of sufficient amount organic matter Soil to promote biological cycle in the ecosystem, reaches holding and enhancing soil fertility and bioactivity purpose.
Biological organic fertilizer can play controlling disease, insect pest and nontoxic to people and animals, be high-quality non-polluted farm product life The indispensable means of production of production.With the fast development of China's modern agriculture, particularly green organic agricultural cultivated area constantly expands Greatly, specified microorganisms bacterium is dissolved into biological organic fertilizer, produces the life for being provided simultaneously with biological pesticide, bio-feritlizer characteristic Object organic medical fertilizer becomes the emphasis that current chemical fertilizer production enterprise develops.
The good ring of domestic rubbish disposal has been the key that one of environmental protection.Present Social Development State is as people live Level steps up, and generated house refuse is more and more, and citizen require domestic garbage was harmlessly treated, is put in people face Preceding great social sustainable development problem.Therefore, consumer waste innocent, recycling treatment are presently preferred topics.
China is agricultural production big country, very high with the utilization of fertilizer, and the requirement to fertilizer is also constantly promoted, at present, Largely using inorganic fertilizer, so seriously resulting in the harmful substance of crops increases, poor quality, and hypotrophy is followed by native Earth is easily hardened, and drought resisting effect is poor, and water retention property so seriously affects the normal growth of crops, economy effect also with variation Benefit is poor.
The content of the invention
It can preserve the ecological environment and farmland soil it is an object of the invention to overcome the deficiencies of the prior art and provide a kind of Earth, crop easily absorbs, yield increase effect is apparent, integrates fertilising and sterilizes dual function, and at low cost and environment friendly and pollution-free one Kind corn special organic and inorganic composite biological medicinal fertilizer and preparation method thereof.
The present invention is achieved by the following technical solutions:
A kind of corn special bio medicine fertilizer, is made of the raw material of following weight proportion:15-25 parts of chicken manure, 8-14 parts of pig manure, 8-14 parts of sheep manure, 10-15 parts of rice chaff, 8-14 parts of stalk, 6-12 parts of peat soil, 5-10 parts of animal bone powder, 3-5 parts of animal wool powder, 5-7 parts of leaf, 4-6 parts of mushroom residue, 13-16 parts of urea, 10-12 parts of calcium superphosphate, 12-14 parts of calcium nitrate, 8-10 parts of potassium sulfate, 0.08-0.12 parts of ammonium molybdate, 1.9-2.4 parts of copper sulphate, 0.8-1.2 parts of manganese sulfate, 3-5 parts of ferrous sulfate, potassium humate 10-13 Part, 3-5 parts of egg-shell meal, 0.4-0.6 parts of glucose, 0.03-0.06 parts of borax, 10-12 parts of animal hair, microbial fermenters 3- 4 parts.
As a kind of the preferred of above-mentioned corn special bio medicine fertilizer, it is made of the raw material of following weight proportion:Chicken manure 20 Part, 11 parts of pig manure, 11 parts of sheep manure, 12 parts of rice chaff, 12 parts of stalk, 9 parts of peat soil, 8 parts of animal bone powder, 4 parts of animal wool powder, leaf 6 parts, 5 parts of mushroom residue, 14 parts of urea, 11 parts of calcium superphosphate, 13 parts of calcium nitrate, 9 parts of potassium sulfate, 0.1 part of ammonium molybdate, copper sulphate 2.2 parts, 1 part of manganese sulfate, 4 parts of ferrous sulfate, 12 parts of potassium humate, 4 parts of egg-shell meal, 0.5 part of glucose, 0.05 part of borax, move 11 parts of object hair, 3 parts of microbial fermenters.
The invention also discloses a kind of preparation methods of above-mentioned corn special bio medicine fertilizer, include the following steps:
(1) by raw material weight proportioning of soup processed, by chicken manure, pig manure, sheep manure, rice chaff, stalk, peat soil, animal bone powder, animal wool Powder, leaf, mushroom residue, humic acid potassium, egg-shell meal, glucose, borax are added in mixer, are sufficiently mixed;
(2) microbial fermenters of weight proportion are added in the mixed material of step (1), are uniformly mixed, adjust mixing The water content of material is 50-60%, pH value 5-6;
(3) mixture in step (2) is fermented, fermented 10-12 days, after temperature reaches 55-65 DEG C, every 2- It stirs fermentation materials once within 3 days, continues fermentation 15-20 days, temperature is controlled at 60-70 DEG C, obtains fermentate;
(4) will animal hair add in 25-30% sulfuric acid in hydrolyze 8-10 it is small when, generate amino acid, then plus lime in With, add the 3-4% carboxymethyl chitosans of hydrolyzate weight, then by the ammonium molybdate of weight proportion, copper sulphate, manganese sulfate, sulphur Sour ferrous iron is dissolved in hydrolyzate, and generation chelating amino acids are micro-, middle fertilizer solution;
(5) after the fermentate of urea, calcium superphosphate, calcium nitrate, potassium sulfate crushing and step (3) will be mixed fully, then With the chelating amino acids of the gained of step (4) are micro-, middle fertilizer solution is sufficiently mixed, be finally granulated, spray paraffin coating, you can.
The present invention has the following advantages compared with prior art:
The present invention will a variety of organic exhaust gas objects mix after ferment, become green organic manure, can preserve the ecological environment and agriculture Field soil, crop easily absorbs, yield increase effect is apparent, reduces environmental pollution, and the organic matter of fermentation with inorganic fertilizer is mixed, is added Add the borax with insecticidal function, nutrition more comprehensively, add bactericidal effect.Meanwhile the present invention uses sour water solution animal hair Deng generation amino acid, then middle and trace element is chelated, carboxymethyl chitosan adds its chelate structure, in being conducive to, Trace element efficiently uses, and reduces the invalid release of middle and trace element;Insecticidal constituent can effectively reduce soil pest and disease damage.This The composite biological medicinal fertilizer that invention provides can significantly improve fertilizer efficiency utilization rate, can be slowly released effectively with single-dose application, it is possible to reduce Apply fertilizer frequency, reduces fertilizer cost, increases economic efficiency.
Specific embodiment
It elaborates below to the embodiment of the present invention, the present embodiment is carried out lower based on the technical solution of the present invention Implement, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to following implementation Example.
Embodiment one
The present embodiment is the preferred embodiment of the present invention, a kind of corn special bio medicine fertilizer it is preferred, matched somebody with somebody by following weight The raw material composition of ratio:20 parts of chicken manure, 11 parts of pig manure, 11 parts of sheep manure, 12 parts of rice chaff, 12 parts of stalk, 9 parts of peat soil, animal bone powder 8 Part, 4 parts of animal wool powder, 6 parts of leaf, 5 parts of mushroom residue, 14 parts of urea, 11 parts of calcium superphosphate, 13 parts of calcium nitrate, 9 parts of potassium sulfate, 0.1 part of ammonium molybdate, 2.2 parts of copper sulphate, 1 part of manganese sulfate, 4 parts of ferrous sulfate, 12 parts of potassium humate, 4 parts of egg-shell meal, glucose 0.5 part, 0.05 part of borax, 11 parts of animal hair, 3 parts of microbial fermenters.
The present embodiment also discloses a kind of preparation method of above-mentioned corn special bio medicine fertilizer, includes the following steps:
(1) by raw material weight proportioning of soup processed, by chicken manure, pig manure, sheep manure, rice chaff, stalk, peat soil, animal bone powder, animal wool Powder, leaf, mushroom residue, humic acid potassium, egg-shell meal, glucose, borax are added in mixer, are sufficiently mixed;
(2) microbial fermenters of weight proportion are added in the mixed material of step (1), are uniformly mixed, adjust mixing The water content of material is 50-60%, pH value 5-6;
(3) mixture in step (2) is fermented, fermented 10-12 days, after temperature reaches 55-65 DEG C, every 2- It stirs fermentation materials once within 3 days, continues fermentation 15-20 days, temperature is controlled at 60-70 DEG C, obtains fermentate;
(4) will animal hair add in 25-30% sulfuric acid in hydrolyze 8-10 it is small when, generate amino acid, then plus lime in With, add the 3-4% carboxymethyl chitosans of hydrolyzate weight, then by the ammonium molybdate of weight proportion, copper sulphate, manganese sulfate, sulphur Sour ferrous iron is dissolved in hydrolyzate, and generation chelating amino acids are micro-, middle fertilizer solution;
(5) after the fermentate of urea, calcium superphosphate, calcium nitrate, potassium sulfate crushing and step (3) will be mixed fully, then With the chelating amino acids of the gained of step (4) are micro-, middle fertilizer solution is sufficiently mixed, be finally granulated, spray paraffin coating, you can.
Embodiment two
A kind of corn special bio medicine fertilizer, is made of the raw material of following weight proportion:15 parts of chicken manure, 8 parts of pig manure, sheep manure 8 Part, 10 parts of rice chaff, 8 parts of stalk, 6 parts of peat soil, 5 parts of animal bone powder, 3 parts of animal wool powder, 5 parts of leaf, 4 parts of mushroom residue, urea 13 parts, 10 parts of calcium superphosphate, 12 parts of calcium nitrate, 8 parts of potassium sulfate, 0.08 part of ammonium molybdate, 1.9 parts of copper sulphate, 0.8 part of manganese sulfate, 3 parts of ferrous sulfate, 10 parts of potassium humate, 3 parts of egg-shell meal, 0.4 part of glucose, 0.03 part of borax, 10 parts of animal hair, microorganism 3 parts of fermentate.
Its preparation method is the same as embodiment one.
Embodiment three
A kind of corn special bio medicine fertilizer, is made of the raw material of following weight proportion:25 parts of chicken manure, 14 parts of pig manure, sheep manure 14 parts, 15 parts of rice chaff, 14 parts of stalk, 12 parts of peat soil, 10 parts of animal bone powder, 5 parts of animal wool powder, 7 parts of leaf, 6 parts of mushroom residue, 16 parts of urea, 12 parts of calcium superphosphate, 14 parts of calcium nitrate, 10 parts of potassium sulfate, 0.12 part of ammonium molybdate, 2.4 parts of copper sulphate, manganese sulfate 1.2 parts, 5 parts of ferrous sulfate, 13 parts of potassium humate, 5 parts of egg-shell meal, 0.6 part of glucose, 0.06 part of borax, 12 parts of animal hair, 4 parts of microbial fermenters.
Its preparation method is the same as embodiment one.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.

Claims (3)

1. a kind of corn special bio medicine fertilizer, which is characterized in that be made of the raw material of following weight proportion:15-25 parts of chicken manure, pig 8-14 parts of excrement, 8-14 parts of sheep manure, 10-15 parts of rice chaff, 8-14 parts of stalk, 6-12 parts of peat soil, 5-10 parts of animal bone powder, animal wool 3-5 parts of powder, 5-7 parts of leaf, 4-6 parts of mushroom residue, 13-16 parts of urea, 10-12 parts of calcium superphosphate, 12-14 parts of calcium nitrate, sulfuric acid 8-10 parts of potassium, 0.08-0.12 parts of ammonium molybdate, 1.9-2.4 parts of copper sulphate, 0.8-1.2 parts of manganese sulfate, 3-5 parts of ferrous sulfate, humic Sour potassium 10-13 parts, 3-5 parts of egg-shell meal, 0.4-0.6 parts of glucose, 0.03-0.06 parts of borax, 10-12 parts of animal hair, micro- life 3-4 parts of object fermentate.
2. a kind of corn special bio medicine fertilizer as described in claim 1, it is characterised in that:By the raw material group of following weight proportion Into:20 parts of chicken manure, 11 parts of pig manure, 11 parts of sheep manure, 12 parts of rice chaff, 12 parts of stalk, 9 parts of peat soil, 8 parts of animal bone powder, animal wool 4 parts of powder, 6 parts of leaf, 5 parts of mushroom residue, 14 parts of urea, 11 parts of calcium superphosphate, 13 parts of calcium nitrate, 9 parts of potassium sulfate, ammonium molybdate 0.1 Part, 2.2 parts of copper sulphate, 1 part of manganese sulfate, 4 parts of ferrous sulfate, 12 parts of potassium humate, 4 parts of egg-shell meal, 0.5 part of glucose, borax 0.05 part, 11 parts of animal hair, 3 parts of microbial fermenters.
3. a kind of preparation method of corn special bio medicine fertilizer as claimed in claim 1 or 2, which is characterized in that including as follows Step:
(1) by raw material weight proportioning of soup processed, by chicken manure, pig manure, sheep manure, rice chaff, stalk, peat soil, animal bone powder, animal wool powder, tree Leaf, mushroom residue, humic acid potassium, egg-shell meal, glucose, borax are added in mixer, are sufficiently mixed;
(2) microbial fermenters of weight proportion are added in the mixed material of step (1), is uniformly mixed, adjusts mixture Water content is 50-60%, pH value 5-6;
(3) mixture in step (2) is fermented, fermented 10-12 days, after temperature reaches 55-65 DEG C, every 2-3 days It stirs fermentation materials once, continues fermentation 15-20 days, temperature is controlled at 60-70 DEG C, obtains fermentate;
(4) will animal hair add in 25-30% sulfuric acid in hydrolyze 8-10 it is small when, generate amino acid, then plus lime neutralize, then The 3-4% carboxymethyl chitosans of hydrolyzate weight are added in, then by the ammonium molybdate of weight proportion, copper sulphate, manganese sulfate, ferrous sulfate It is dissolved in hydrolyzate, generation chelating amino acids are micro-, middle fertilizer solution;
(5) will by urea, calcium superphosphate, calcium nitrate, potassium sulfate crush and step (3) fermentate mix fully after, then with step Suddenly the chelating amino acids of the gained of (4) are micro-, middle fertilizer solution is sufficiently mixed, and are finally granulated, spray paraffin coating, you can.
CN201711403418.7A 2017-12-22 2017-12-22 A kind of corn special bio medicine fertilizer and preparation method Withdrawn CN108046916A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711403418.7A CN108046916A (en) 2017-12-22 2017-12-22 A kind of corn special bio medicine fertilizer and preparation method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711403418.7A CN108046916A (en) 2017-12-22 2017-12-22 A kind of corn special bio medicine fertilizer and preparation method

Publications (1)

Publication Number Publication Date
CN108046916A true CN108046916A (en) 2018-05-18

Family

ID=62130813

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711403418.7A Withdrawn CN108046916A (en) 2017-12-22 2017-12-22 A kind of corn special bio medicine fertilizer and preparation method

Country Status (1)

Country Link
CN (1) CN108046916A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110540453A (en) * 2018-05-29 2019-12-06 广西桂平市焱焱肥业有限公司 Carbon-based composite microbial fertilizer and preparation method thereof
CN110818499A (en) * 2019-11-26 2020-02-21 黑龙江八一农垦大学 A kind of special fertilizer for preventing premature aging of corn and its preparation method and application

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110540453A (en) * 2018-05-29 2019-12-06 广西桂平市焱焱肥业有限公司 Carbon-based composite microbial fertilizer and preparation method thereof
CN110818499A (en) * 2019-11-26 2020-02-21 黑龙江八一农垦大学 A kind of special fertilizer for preventing premature aging of corn and its preparation method and application

Similar Documents

Publication Publication Date Title
CN103524227B (en) A kind of special rice organic-inorganic composite biological medicinal fertilizer and preparation method thereof
CN103524256B (en) Special organic/inorganic composite biological pesticide fertilizer for mulberry and preparation method thereof
CN103524230B (en) Biological fertilizer special for flowers and preparation method thereof
CN102942423B (en) Specialized organic/inorganic composite biological medicine fertilizer for watermelon, and preparation method thereof
CN102951961B (en) Special organic-inorganic composite biological pesticide-fertilizer for flowers and preparation method thereof
CN104817399B (en) A kind of intelligent preparation system and preparation method using the quick-acting sustained release integrated high-efficient ecology composite fertilizers of stalk microbe fermentation synthesis
CN103626595B (en) A kind of Fruit tree organic fertilizer and production technique thereof
CN103058748B (en) Preparation method of compound biological pesticide fertilizer special for peach trees and compound biological pesticide fertilizer special for peach trees therefrom
CN104086323A (en) Organic bio-fertilizer with insecticidal function
CN101486609A (en) Ecological organic fertilizer containing organic, inorganic and beneficial microorganism
CN103694006B (en) A kind of biological organic fertilizer production technique
CN102951936A (en) Biological organic fertilizer containing medium trace element chelates of humic acid
CN106242669A (en) A kind of biological organic fertilizer
CN103524228A (en) Special biofertilizer for cucumbers and preparation method thereof
CN108276210A (en) A kind of tea oil tree special fertilizer and preparation method thereof
CN103570427A (en) Organic and inorganic composite fertilizer containing amino acid trace element chelates
CN102942417A (en) Plant growth promoting rhinoacteria (PGPR) bio-organic fertilizers and production method thereof
CN103274805A (en) Bio-organic fertilizer and preparation method thereof
CN105254414A (en) Preparation method of organic fertilizer powder special for facultative multi-nutrient soilless culture
KR100974087B1 (en) Manure and method using fallen leaves
CN108046916A (en) A kind of corn special bio medicine fertilizer and preparation method
CN103524229B (en) Special organic and inorganic composite biological medicinal fertilizer for potatoes and preparation method thereof
CN107353081A (en) The preparation method of fertilizer for pot-culture flowers
CN107986879A (en) A kind of persimmon tree special bio medicine fertilizer and preparation method
CN107840736A (en) A kind of gardenia special bio medicine fertilizer and preparation method

Legal Events

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

Application publication date: 20180518

WW01 Invention patent application withdrawn after publication