CN102219592A - Special organic fertilizer for greenhouse vegetables and preparation method thereof - Google Patents
Special organic fertilizer for greenhouse vegetables and preparation method thereof Download PDFInfo
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- CN102219592A CN102219592A CN2011101326315A CN201110132631A CN102219592A CN 102219592 A CN102219592 A CN 102219592A CN 2011101326315 A CN2011101326315 A CN 2011101326315A CN 201110132631 A CN201110132631 A CN 201110132631A CN 102219592 A CN102219592 A CN 102219592A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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Abstract
The invention discloses a special organic fertilizer for greenhouse vegetables and a preparation method thereof. The special organic fertilizer for the greenhouse vegetables is prepared by carrying out piling fermentation on the following raw material in parts by weight: 800-1000 parts of xylitol residue, 200-300 parts of plant ash, 200-300 parts of wheat straw, 80-100 parts of soybean residue, 25-30 parts of urea, 6-10 parts of monopotassium phosphate and 4-6 parts of magnesium sulfate heptahydrate. The organic fertilizer has the advantages that a rapid rotting agent is not adopted, the cost is reduced, labor and time are saved; according to the fertilizer enjoying characteristics of vegetables and soil characteristics as well as nutrition contents of various organic matters, different organic raw materials are selected and blended so as to form the organic fertilizer, thus the organic fertilizer has strong pertinence; the organic fertilizer does not contain harmful substances, is environmentally-friendly and is safe for vegetables; compared with the common fertilizer the applying amount of which is the same as that of the organic fertilizer, the yield of the vegetable applied with the special organic fertilizer for the greenhouse vegetables is improved by above 7%, and simultaneously, the quality of the vegetables is improved, and the commodity performance of the vegetables is good; and the organic fertilizer can be used for various vegetables in a winner warm type greenhouse, an early spring type large arch shed, a small arch shed and dry land.
Description
Technical field
The invention belongs to field of agricultural production technologies, a kind of specifically booth vegetable fertilizer special for organic and preparation method thereof.
Background technology
Since the last century the eighties; the booth vegetables in improper season day by day become the indispensable food of common people's winter-spring season on protection ground; and for a long time; excessively use chemical fertilizer and without the organic fertilizer of harmless treatment, plastic shed soil is done great damage, soil acidity or alkalinity is unbalance; salt accumulation is too much; disease and pest increases the weight of etc., has a strong impact on vegetable crop and quality, also constitutes very big threat for human health.Therefore, it is imperative that plastic shed soil is repaired, and using nontoxic, pollution-free and environment amenable organic fertilizer is the key that addresses the above problem.
Along with developing rapidly of China's intensification agricultural and processing industry, the a large amount of agriculturals and the solid waste of processing industry are wasted, greatly wasted the raw material of these organic fertilizer products, a large amount of nutrient resource (C, N, P, K, S and trace element) runs off outside the edaphophyte system, has therefore slackened the ability of China's agricultural sustainable development.The solid organic castoff resource utilization is the important channel of development sustainable agriculture and recycling economy, low-carbon economy.The Xylitol slag is to extract Xylitol solid waste afterwards, plant ash is the waste of bioelectrogenesis factory, and wheat straw is the tankage behind the harvesting wheat, and these solid waste contain more fertilizer and trace element, the source is abundant, and direct returning to farmland is difficult to be absorbed by crop and utilize.
Summary of the invention
At the deficiencies in the prior art, the invention provides a kind of booth vegetable fertilizer special for organic and preparation method thereof, the present invention is a main raw material with solid waste (Xylitol slag, plant ash, wheat straw and dregs of beans), through biological restoration (heap fermentation), make it fully to become thoroughly decomposed, produce high-quality and efficient fertilizer; This fertilizer is fostered and apply fertilizer for improving the soil and is purified edatope, has important practical significance.
Technical scheme of the present invention is: a kind of booth vegetable fertilizer special for organic, it is characterized in that, and make through heap fermentation by the raw material of following weight parts,
Above-mentioned Xylitol slag is to be waste residue in the main material production Xylitol process with the corn cob, moisture content≤25wt%, organic content 〉=60wt%.
Above-mentioned plant ash is to be the waste (stalk ashes) of the bioelectrogenesis factory of raw material with various straws, potassium content 〉=6wt%.
Above-mentioned wheat straw is the wheat stalk behind the harvesting wheat particle, moisture content≤18wt%, organic content 〉=20wt%.
Above-mentioned dregs of beans is a residuum behind the soybean pressed oil, the commercially available prod.
Above-mentioned urea, potassium primary phosphate and magnesium sulfate heptahydrate are common agrochemistry fertilizer, the commercially available prod.
The preparation method of this booth vegetable fertilizer special for organic comprises the steps:
(1), raw material is prepared
The Xylitol slag is dried in the air or dry by the fire to water content 25wt%, be crushed to 60 mesh sieves then, wheat straw and bean cake powder were broken to 60 mesh sieves, and urea, potassium primary phosphate and magnesium sulfate heptahydrate all were crushed to 60 mesh sieves if caking phenomenon is arranged;
(2), take by weighing raw material, after mixing, the water content of adjusting compound is that 50～60wt% (during water deficient, sprays water in compound by above-mentioned weight part proportioning; When moisture content is too high, ventilates and dry); This moment, the pH value of compound was 7.0～7.8; Then it is built up wide 1.6m～2.0m, high 0.6m～1.0m, the stockpile that length is not limit; When treating that the stockpile temperature rises to 50 ℃, beginning turning (artificial or mechanical turning all can); An amount of water of turning forward direction stockpile surface sprinkling is advisable with no siccative, and the material at stockpile center is translated into the top layer, and the material of top layer and bottom is translated into the center, makes the ventilative effect that plays regulation and control stockpile temperature simultaneously of stockpile oxygenation by turning; When treating that the stockpile temperature rises to 60 ℃～65 ℃, keep carrying out the turning second time after 3～5 days; For the second time temperature is raised to 60 ℃～65 ℃ very soon after the turning, if when temperature surpasses 70 ℃, in time carry out turning for the third time, if when temperature is raised to 65 ℃, no longer rise, but holding temperature 3～5 days is carried out turning for the third time; Carry out the 4th turning equally; After the 4th turning, the stockpile temperature can descend gradually, when reducing to below 40 ℃, promptly gets the good fertilizer of heap fermentation.Whole process needs 20～25 days time.
(3), the fertilizer that heap fermentation is good dries in the air or dry by the fire to water content≤20wt%, adopts dry powder extruder grain method to carry out granulation then, promptly gets granular booth vegetable fertilizer special for organic.
The invention has the beneficial effects as follows: compared with prior art, the present invention has good effect:
(1), booth vegetable fertilizer special for organic of the present invention, do not adopt quick rotting agent, reduce cost, saving of labor and saving time, generally needed get final product in 20～25 days, than 2～3 months of the rotten fertilizer of conventional stack having saved the time greatly;
(2), booth vegetable fertilizer special for organic of the present invention is according to the fertile characteristic of the happinesses of vegetables and soil characteristic and various organic nutrient content, selected different organic raw material cooperates and forms, and is with strong points.Xylitol slag, dregs of beans, wheat straw powder contain more organic matter, can produce enough heats in composting process, make the very fast rising of compost temperature; An amount of plant ash can make the material potential of hydrogen be neutrality or weakly alkaline (PH7.0-7.8), is suitable for microbial activities; An amount of use of urea makes carbon-nitrogen ratio about 25: 1, makes organic substance that the ideal decomposition rate be arranged in composting process; Phosphorus is phosphoric acid and nuclear important composition element, also is bioenergy ATP thing important composition element, and suitable interpolation potassium primary phosphate makes composting C/P remain on 75-150, the beneficial microorganism physiological activity; The magnesium elements that is provided in the magnesium sulfate heptahydrate also has irreplaceable effect to the activity of microorganism.
(3), the raw material of booth vegetable fertilizer special for organic of the present invention do not contain hazardous substance, and is environmentally friendly, to vegetables safety;
(4), compare, the vegetable crop of using booth vegetable fertilizer of the present invention improves more than 7%, and quality makes moderate progress simultaneously, and vegetables commodity performance is good with using the equivalent common fertilizer;
(5), booth vegetable fertilizer special for organic of the present invention can be applicable to winter warm type big shack, early spring big arch shed, the various vegetables of little shed and land.
Embodiment
The present invention is described further below in conjunction with embodiment, but be not limited thereto.
Embodiment 1
Proportioning: 4 parts of 1000 parts of Xylitol slags, 200 parts of plant ash, 200 parts of wheat straws, 80 parts of dregs of beans, 25 parts in urea, 6 parts of potassium primary phosphates and magnesium sulfate heptahydrates.
The Xylitol slag is that Shandong Longli Biology Science and Technology Co., Ltd is the waste residue that produces in the main material production Xylitol process with the corn cob, pH value 5.5, organic content 69wt%, nitrogenous 0.76wt%, phosphorus 0.77wt%, potassium 0.29wt%;
Plant ash is the waste of East China branch office of state energy bioelectrogenesis Group Co.,Ltd, pH value 10.7, phosphorous 1.023wt%, potassium 9.21wt%;
Wheat straw, on-the-spot collection, moisture content≤18wt%, organic content 〉=20wt%; Nitrogen content 0.35 ± 0.01wt%, phosphorus 0.27 ± 0.01wt%, potassium 0.95 ± 0.01wt%;
Dregs of beans, (Shandong) China Oil and Food Import and Export Corporation Archer Daniels Midland(ADM) grain and oil industry (Heze) company limited produces, water content 6.5wt%, organic content 65wt%, nitrogenous 2.1wt%, phosphorus 0.56wt%, potassium 0.07wt%;
Urea, Central Plains, Henan Province bigization limited-liability company produces the commercially available prod;
Potassium primary phosphate, Guanghan, Sichuan is refined produces the commercially available prod with chemical industry company limited;
Magnesium sulfate heptahydrate, Liangshan County Xinhua chemical plant, commercially available prod.
Raw material consumption umber among the embodiment is weight part, and all per-cents all are weight percentage.
The preparation method:
(1), raw material is prepared
The Xylitol slag dried in the air or dry by the fire to water content be 24wt%, pulverized 60 mesh sieves then, wheat straw and bean cake powder were broken to 60 mesh sieves, and the caking part of plant ash, urea, potassium primary phosphate and magnesium sulfate heptahydrate all was crushed to 60 mesh sieves;
(2), get 4 parts of 6 parts of 25 parts in 80 parts of 200 parts of 200 parts of 1000 parts of raw material Xylitol slags, plant ash, wheat straws, dregs of beans, urea, potassium primary phosphates that step 1 gets ready and magnesium sulfate heptahydrates, thorough mixing is even, the water content of adjusting compound is 50wt%; This moment, the pH value of compound was 7.0; Then it is built up wide 1.6m, high 0.6m, the stockpile that length is not limit, when the stockpile temperature rises to 50 ℃, beginning turning (artificial or mechanical turning all can), an amount of water of turning forward direction stockpile surface sprinkling is advisable with no siccative, the material at stockpile center is translated into the top layer, the material of top layer and bottom is translated into the center; When treating that the stockpile temperature rises to 60 ℃, keep 60-65 ℃ of temperature after 5 days, turning again; When treating that the stockpile temperature rises to 62 ℃, keep 60-65 ℃ of temperature after 3 days, carry out turning for the third time again; When treating that the stockpile temperature rises to 63 ℃, keep 60-65 ℃ of temperature after 4 days, carry out the 4th turning again; The heap temperature begins to descend after 20～25 days altogether, reduces to below 40 ℃, promptly gets the good fertilizer of heap fermentation;
(3), the fertilizer that heap fermentation is good dries in the air or dry by the fire to water content≤20wt%, adopts dry powder extruder grain method to carry out granulation, promptly gets granular booth vegetable fertilizer special for organic.
Embodiment 2
Proportioning: 6 parts of 800 parts of Xylitol slags, 300 parts of plant ash, 300 parts of wheat straws, 100 parts of dregs of beans, 30 parts in urea, 10 parts of potassium primary phosphates and magnesium sulfate heptahydrates.
Raw material sources and performance are with embodiment 1.
The preparation method:
(1), raw material is prepared
Raw material is prepared with embodiment 1;
(2), get 6 parts of 10 parts of 30 parts in 100 parts of 300 parts of 300 parts of 800 parts of raw material Xylitol slags, plant ash, wheat straws, dregs of beans, urea, potassium primary phosphates that step 1 gets ready and magnesium sulfate heptahydrates, thorough mixing is even, the water content of adjusting compound is 60wt%, and this moment, the pH value of compound was 7.6; Then it is built up wide 1.8m, high 0.8m, the stockpile that length is not limit, when the stockpile temperature rises to 50 ℃, beginning turning (artificial or mechanical turning all can), an amount of water of turning forward direction stockpile surface sprinkling is advisable until no siccative, the material at stockpile center is translated into the top layer, the material of top layer and bottom is translated into the center; When treating that the stockpile temperature rises to 65 ℃, keep 60-65 ℃ of temperature after 5 days, turning again; When treating that the stockpile temperature rises to 63 ℃, keep 60-65 ℃ of temperature after 3 days, carry out turning for the third time again; When treating that the stockpile temperature rises to 60 ℃, keep 60-65 ℃ of temperature after 4 days, carry out the 4th turning again; The heap temperature begins to descend after 20～25 days altogether, reduces to below 40 ℃, promptly gets the good fertilizer of heap fermentation;
(3), the fertilizer that heap fermentation is good dries in the air or dry by the fire to water content≤20wt%, adopts dry powder extruder grain method to carry out granulation, promptly gets granular booth vegetable fertilizer special for organic.
Embodiment 3
Proportioning: 5 parts of 900 parts of Xylitol slags, 250 parts of plant ash, 250 parts of wheat straws, 100 parts of dregs of beans, 28 parts in urea, 8 parts of potassium primary phosphates and magnesium sulfate heptahydrates.
Raw material sources and performance are with embodiment 1.
The preparation method:
(1), raw material is prepared
Raw material is prepared with embodiment 1;
(2), get 5 parts of 8 parts of 28 parts in 100 parts of 250 parts of 250 parts of 900 parts of raw material Xylitol slags, plant ash, wheat straws, dregs of beans, urea, potassium primary phosphates that step 1 gets ready and magnesium sulfate heptahydrates, thorough mixing is even, the water content of adjusting compound is 55wt%; This moment, the pH value of compound was 7.2; Then it is built up wide 2.0m, high 1.0m, the stockpile that length is not limit, when the stockpile temperature rises to 50 ℃, beginning turning (artificial or mechanical turning all can), an amount of water of turning forward direction stockpile surface sprinkling is advisable until no siccative; When treating that the stockpile temperature rises to 65 ℃, keep 60-65 ℃ of temperature after 4 days, turning again; When treating that the stockpile temperature rises to 62 ℃, keep 60-65 ℃ of temperature after 4 days, carry out turning for the third time again; When treating that the stockpile temperature rises to 63 ℃, keep 60-65 ℃ of temperature after 4 days, carry out the 4th turning again; The heap temperature begins to descend after 20～25 days altogether, reduces to below 40 ℃, promptly gets the good fertilizer of heap fermentation;
(3), the fertilizer that heap fermentation is good dries in the air or dry by the fire to water content≤20wt%, adopts dry powder extruder grain method to carry out granulation, promptly gets granular booth vegetable fertilizer special for organic.
Comparative Examples:
Biological organic fertilizer (production of Fujian, Shandong, Shandong biotechnology company limited), organic content 36.5wt%, nitrogen phosphorus potassium total nutrient content 4.51wt%.
Above embodiment 1-3 and Comparative Examples are carried out field experiment and are used:
Experimental field: He Dian town, Shenxian County, Shandong Province Ma Caiyuancun, the time is year November in November, 2009-2010.
For the examination vegetables is tomato (California beauty), fresh kidney beans (getting bumper crops No. two), cucumber (spring treasured), and corresponding fertilizer is respectively embodiment 1, embodiment 2 and embodiment 3, and every group of test is contrast with contrast fertilizer;
Contrast fertilizer is applied to tomato, fresh kidney beans and cucumber by the same manner of embodiment fertilizer, and whole greenhouse cultivations, embodiment and Comparative Examples fertilizer are with identical, every mu of 350kg, and other inorganic fertilizer is identical, ploughs after spread fertilizer over the fields in the garden entirely; The bottom application inorganic fertilizer, topdress and manage identical.
Test-results is as follows:
Embodiment 1 fertilizer and Comparative Examples fertilizer are used for tomato (California beauty) planting experiment result: after using the Comparative Examples biological organic fertilizer, and 8991 kilograms of tomato productions (every mu); After using the fertilizer of embodiment 1 preparation, 9680 kilograms of tomato productions (every mu); Stimulation ratio is 7.66%.
Embodiment 2 fertilizers and Comparative Examples fertilizer are used for fresh kidney beans (getting bumper crops No. two) planting experiment result: after using the Comparative Examples biological organic fertilizer, and 2279 kilograms of fresh kidney beans output (every mu); After using the fertilizer of embodiment 2 preparations, 2448 kilograms of fresh kidney beans output (every mu); Stimulation ratio is 7.42%.
Embodiment 3 fertilizers and Comparative Examples fertilizer are used for cucumber (spring treasured) planting experiment result: after using the Comparative Examples biological organic fertilizer, and 7150 kilograms of cucumber yields (every mu); After using the fertilizer of embodiment 3 preparations, 7674 kilograms of cucumber yields (every mu); Stimulation ratio is 7.33%.
Conclusion: fertilizer of the present invention is compared with existing fertilizer, and effect of increasing production is obvious.
Claims (7)
1. booth vegetable fertilizer special for organic, it is characterized in that, raw material by following weight parts is made through heap fermentation, 800～1000 parts of Xylitol slags, 200～300 parts of plant ash, 200～300 parts of wheat straws, 80～100 parts of dregs of beans, 25～30 parts in urea, 6～10 parts of potassium primary phosphates, 4～6 parts of magnesium sulfate heptahydrates.
2. a kind of booth vegetable fertilizer special for organic as claimed in claim 1 is characterized in that, described Xylitol slag is to be waste residue in the main material production Xylitol process with the corn cob, moisture content≤25wt%, organic content 〉=60wt%.
3. a kind of booth vegetable fertilizer special for organic as claimed in claim 1 is characterized in that, described plant ash is to be the waste of the bioelectrogenesis factory of raw material with the stalk, potassium content 〉=6wt%.
4. a kind of booth vegetable fertilizer special for organic as claimed in claim 1 is characterized in that described wheat straw is the wheat stalk behind the harvesting wheat particle, moisture content≤18wt%, organic content 〉=20wt%; Described dregs of beans is a residuum behind the soybean pressed oil.
5. the preparation method of any described booth vegetable fertilizer special for organic among the claim 1-4 is characterized in that, comprises the steps:
(1), raw material is prepared
The Xylitol slag is dried in the air or dry by the fire to water content 25wt%, be crushed to 60 mesh sieves then, wheat straw and bean cake powder were broken to 60 mesh sieves;
(2), take by weighing raw material, after mixing, the water content of adjusting compound is 50～60wt% by the described weight part proportioning of claim 1; Then it is built up wide 1.6m～2.0m, high 0.6m～1.0m, the stockpile that length is not limit; When treating that the stockpile temperature rises to 50 ℃, the beginning turning, turning forward direction stockpile surface sprinkling is advisable with no siccative; When treating that the stockpile temperature rises to 60 ℃～65 ℃, keep carrying out the turning second time after 3～5 days; For the second time after the turning, when treating that temperature surpasses 70 ℃ or 60～65 ℃ of holding temperatures after 3-5 days, carry out turning for the third time; For the third time after the turning, when treating that temperature surpasses 70 ℃ or 60～65 ℃ of holding temperatures after 3-5 days, carry out the 4th turning; After the 4th turning, the stockpile temperature descends gradually, when reducing to below 40 ℃, promptly gets the good fertilizer of heap fermentation.
6. the preparation method of booth vegetable fertilizer special for organic as claimed in claim 5 is characterized in that, the fertilizer that heap fermentation is good dries in the air or dries by the fire to water content≤20wt%, adopts dry powder extruder grain method to carry out granulation then, gets granular booth vegetable fertilizer special for organic.
7. as the preparation method of claim 5 or 6 described booth vegetable fertilizer special for organic, it is characterized in that the caking part of described urea, potassium primary phosphate and magnesium sulfate heptahydrate all was crushed to 60 mesh sieves.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101326315A CN102219592B (en) | 2011-05-20 | 2011-05-20 | Special organic fertilizer for greenhouse vegetables and preparation method thereof |
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| CN2011101326315A CN102219592B (en) | 2011-05-20 | 2011-05-20 | Special organic fertilizer for greenhouse vegetables and preparation method thereof |
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| CN102219592A true CN102219592A (en) | 2011-10-19 |
| CN102219592B CN102219592B (en) | 2013-05-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107141049A (en) * | 2017-07-17 | 2017-09-08 | 彝良全威农林生物科技开发有限公司 | One kind plantation Paris polyphylla bio-organic fertilizer special and preparation method thereof |
| CN109160864A (en) * | 2018-11-22 | 2019-01-08 | 贵州恒创源农业发展有限公司 | A kind of vegetables by-product organic fertilizer and its preparation process |
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| CN1174827A (en) * | 1996-11-19 | 1998-03-04 | 刘文治 | High nutrient composite fertilizer and production method |
| CN101172911A (en) * | 2007-10-24 | 2008-05-07 | 淅川县源科生物科技有限公司 | Organic and inorganic biological mineral matter mixing fertilizer and method for producing the same |
| CN101274863A (en) * | 2008-05-08 | 2008-10-01 | 陈桓峰 | Organic fertilizer |
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| CN101880197A (en) * | 2009-11-18 | 2010-11-10 | 金福艳 | Microbial compound fertilizer and application thereof |
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- 2011-05-20 CN CN2011101326315A patent/CN102219592B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1174827A (en) * | 1996-11-19 | 1998-03-04 | 刘文治 | High nutrient composite fertilizer and production method |
| CN101172911A (en) * | 2007-10-24 | 2008-05-07 | 淅川县源科生物科技有限公司 | Organic and inorganic biological mineral matter mixing fertilizer and method for producing the same |
| CN101274863A (en) * | 2008-05-08 | 2008-10-01 | 陈桓峰 | Organic fertilizer |
| CN101880197A (en) * | 2009-11-18 | 2010-11-10 | 金福艳 | Microbial compound fertilizer and application thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107141049A (en) * | 2017-07-17 | 2017-09-08 | 彝良全威农林生物科技开发有限公司 | One kind plantation Paris polyphylla bio-organic fertilizer special and preparation method thereof |
| CN109160864A (en) * | 2018-11-22 | 2019-01-08 | 贵州恒创源农业发展有限公司 | A kind of vegetables by-product organic fertilizer and its preparation process |
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| CN102219592B (en) | 2013-05-22 |
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