CN101979461A - Multifunctional soil improvement regulator and preparation method thereof - Google Patents
Multifunctional soil improvement regulator and preparation method thereof Download PDFInfo
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- CN101979461A CN101979461A CN2010102974912A CN201010297491A CN101979461A CN 101979461 A CN101979461 A CN 101979461A CN 2010102974912 A CN2010102974912 A CN 2010102974912A CN 201010297491 A CN201010297491 A CN 201010297491A CN 101979461 A CN101979461 A CN 101979461A
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- 239000002689 soil Substances 0.000 title claims abstract description 50
- 238000002360 preparation method Methods 0.000 title claims abstract description 25
- 229920001661 Chitosan Polymers 0.000 claims abstract description 36
- 239000010815 organic waste Substances 0.000 claims abstract description 27
- 241000609240 Ambelania acida Species 0.000 claims abstract description 26
- 241000894006 Bacteria Species 0.000 claims abstract description 26
- 239000010905 bagasse Substances 0.000 claims abstract description 26
- 238000000855 fermentation Methods 0.000 claims abstract description 18
- 230000004151 fermentation Effects 0.000 claims abstract description 18
- 229920002401 polyacrylamide Polymers 0.000 claims abstract description 17
- 239000000618 nitrogen fertilizer Substances 0.000 claims abstract description 14
- 239000002699 waste material Substances 0.000 claims abstract description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 21
- 230000009286 beneficial effect Effects 0.000 claims description 21
- 230000002269 spontaneous effect Effects 0.000 claims description 9
- 238000009423 ventilation Methods 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 238000001704 evaporation Methods 0.000 claims description 7
- 230000008020 evaporation Effects 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 7
- 230000000813 microbial effect Effects 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 5
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims description 5
- 235000011130 ammonium sulphate Nutrition 0.000 claims description 5
- 239000004202 carbamide Substances 0.000 claims description 5
- 230000006196 deacetylation Effects 0.000 claims description 5
- 238000003381 deacetylation reaction Methods 0.000 claims description 5
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 claims description 5
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 claims description 4
- WYXIGTJNYDDFFH-UHFFFAOYSA-Q triazanium;borate Chemical compound [NH4+].[NH4+].[NH4+].[O-]B([O-])[O-] WYXIGTJNYDDFFH-UHFFFAOYSA-Q 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 3
- 239000003337 fertilizer Substances 0.000 abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 238000002156 mixing Methods 0.000 abstract description 5
- 229920002521 macromolecule Polymers 0.000 abstract description 3
- 230000002401 inhibitory effect Effects 0.000 abstract 1
- 230000035699 permeability Effects 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000007796 conventional method Methods 0.000 description 4
- 239000012467 final product Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000010298 pulverizing process Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 1
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 239000001166 ammonium sulphate Substances 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 235000021049 nutrient content Nutrition 0.000 description 1
- 230000000050 nutritive effect Effects 0.000 description 1
- 239000003895 organic fertilizer Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000009923 sugaring Methods 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
Landscapes
- Fertilizers (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a multifunctional soil improvement regulator and a preparation method thereof. The multifunctional soil improvement regulator is characterized in that: organic wastes comprising bagasse and waste bacteria subjected to piling fermentation treatment are compounded with polyacrylamide macromolecular compound and modified chitosan to obtain the multifunctional soil improvement regulator for killing and inhibiting bacteria, holding water and fertilizer, improving soil structure, improving soil permeability and the like. The preparation method comprises the following steps of: (1) performing fermentation treatment of the organic wastes, namely pre-airing bagasse and waste bacteria bags, controlling nitrogen fertilizer to be between 0.5 and 5 percent, controlling moisture to be between 50 and 70 percent, and performing natural piling fermentation to keep the ratio of C to N at 20 to 50 respectively; and (2) mixing the fermented organic wastes, 0.1 to 1 percent modified chitosan solution and polyacrylamide in a mass ratio of 1:0.5-5:0.01-0.05 to obtain a product.
Description
Technical field
The invention belongs to agricultural technology field, relate to a kind of multifunctional soil improvement regulator and preparation method thereof.
Background technology
Exist in the soil such as organic matter and lack or surplus, some nutritive substance occurs seriously unbalance in the soil, harden and problems such as catabiosis is on the rise, these problems have caused some physical properties of soil such as structural, retentiveness, the variation of tilth etc., the long-term application chemical fertilizer also can cause the variation of potential of hydrogen, cause to a certain extent acidifying or alkalization, especially during continuous administration single variety chemical fertilizer, this phenomenon can appear in a short time, the control chemical fertilizer is to the negative effect of agriculture production, the most basic approach is a control chemical fertilizer input amount, emphasize technique of balanced fertilizer, adopt on a large scale and control soil, improve the soil, prevent the measure of Soil degradation.
Fertilizer is the main supply person of soil and fertilizer, and along with developing rapidly of edible mushrooms and sugaring industry, the quantity discharged of useless bacterium bag and bagasse is also increasing sharply, and can be used as the fertilizer of direct use after it is handled by fermentation.This class fertilizer can increase the organic matter and the nutrient content of soil, it is organic balanced to help keeping soil, promote the soil nutrient circulation, improve biological activity of soil, the composite therein macromolecular compound with highly effective water-keeping function of fertilizer retention and bactericidal effect can play organic fertilizer and can play soil improvement and regulating effect again.Make full use of have high organic content and nitrogen, phosphorus, potassium various trace elements has the useless bacterium bag of good ventilation property and the matrix that bagasse is made soil improvement regulator again, composite again macromolecular compound modified chitosan and polyacrylamide can reach multifunctionality and effect and the cost advantage that like product does not possess.
Summary of the invention
The object of the present invention is to provide a kind of fertilizer, have the physicochemical character that to loosen the soil, preserve moisture, improve the soil simultaneously, promote the soil improvement regulator of crop effects such as moisture and nutrient absorbing.Create granule and stable soil granule by utilizing the high molecular polymer soil improvement agent, make the structure of soil be improved and improve the physico-chemical property of modified soil, thereby play guarantor's fertilizer, water conservation, anti-compaction, anti-erosion, anti-water and soil loss, effects such as the potential of hydrogen of improving the soil, raising crop yield.With the patent No. is that 200410022628.8 patent prepared chitosan soil improvement agent is compared, be very different, the soil improvement regulator of present method preparation has increased the use of matrix bagasse, increased polyacrylamide simultaneously with highly effective water-keeping function of fertilizer retention, and the contriver finds, make soil improvement agent bring into play abundant effective function, the fermentation of waste is a key factor, especially the control of C/N, effect of the present invention is many-sided, being used in has growth cycle to shorten in the soil of planting Chinese medicinal materials and vegetables, output increases, and fertilizer amount reduces, characteristics such as crop quality increase.
The present invention is achieved through the following technical solutions: multifunctional soil improvement regulator contains: organic waste, massfraction 0.5%～5% nitrogenous fertilizer, modified chitosan, polyacrylamide, wherein organic waste and 0.1%～1% modified chitosan solution and polyacrylamide ratio massfraction are 1: 0.5～5: 0.01～0.05, the massfraction ratio of C/N is 20～50 in the described machine waste, organic waste is bagasse, useless bacterium bag, and wherein modified chitosan is that deacetylation is greater than 92%.
A kind of preparation method of multifunctional soil improvement regulator: it is characterized in that containing the following step:
(1) organic waste bagasse, the pre-solarization of useless bacterium bag are handled, and add massfraction 0.5%～5% nitrogenous fertilizer spontaneous fermentation, make the massfraction ratio of C/N in the organic waste be controlled at 20～50;
(2) organic waste that ferments and 0.1%～1% modified chitosan solution and polyacrylamide are mixed by 1: 0.5～5: 0.01～0.05 massfraction, multifunctional soil improvement regulator.
Described nitrogenous fertilizer is a kind of in ammonium sulfate, ammonium borate, urea, ammonium hydrogen phosphate, the primary ammonium phosphate, and wherein modified chitosan is that deacetylation is greater than 92%.
Described spontaneous fermentation comprises: organic waste is pulverized, and nitrogenous fertilizer solution evenly is sprayed on the organic waste, control fermentation moisture 50%～70%, and piling height is 1.2～2m; During windrow, require windrow loose, be beneficial to ventilation, and be beneficial to the microbial reproduction in the windrow; Coating film paper is beneficial to insulation, reduces moisture evaporation; Turning in per 10 days, monitoring C/N massfraction ratio, when its at 20～50, spontaneous fermentation is finished.
The compound method of described 0.1%～1% modified chitosan solution is: be dissolved in the modified chitosan of 10 parts of weight that mass concentration is 1%～3%, weight part is in 200～2000 acetums, the sodium hydroxide solution with 10% transfers to neutrality.
Multifunctional soil improvement regulator of the present invention contains: organic waste, massfraction 0.5%～5% nitrogenous fertilizer, modified chitosan, polyacrylamide, the massfraction ratio of C/N is 20～50 in the described machine waste, organic waste is bagasse, useless bacterium bag, described nitrogenous fertilizer is a kind of in ammonium sulfate, ammonium borate, urea, ammonium hydrogen phosphate, the primary ammonium phosphate, and wherein organic waste and 0.1%～1% modified chitosan solution and polyacrylamide ratio massfraction are 1: 0.5～5: 0.01～0.05.
Multifunctional soil improvement regulator of the present invention and preparation method, the following preparation process of process:
(1) organic waste bagasse, the pre-solarization of useless bacterium bag are handled, and add massfraction 0.5%～5% nitrogenous fertilizer spontaneous fermentation, make the massfraction ratio of C/N in the organic waste be controlled at 20～50;
(2) organic waste that ferments and 0.1%～1% modified chitosan solution and polyacrylamide are mixed by 1: 0.5～5: 0.01～0.05 massfraction, multifunctional soil improvement regulator.Described nitrogenous fertilizer is a kind of in ammonium sulfate, ammonium borate, urea, ammonium hydrogen phosphate, the primary ammonium phosphate.Described spontaneous fermentation comprises: organic waste is pulverized, and nitrogenous fertilizer solution evenly is sprayed on the organic waste, control fermentation moisture 50%～70%, and piling height is 1.2～2m; During windrow, require windrow loose, be beneficial to ventilation, and be beneficial to the microbial reproduction in the windrow; Coating film paper is beneficial to insulation, reduces moisture evaporation; Turning in per 10 days, monitoring C/N massfraction ratio, when its at 20～50, spontaneous fermentation is finished.The compound method of described 0.1%～1% modified chitosan solution is: be dissolved in the modified chitosan of 10 parts of weight that mass concentration is 1%～3%, weight part is in 200～2000 acetums, the sodium hydroxide solution with 10% transfers to neutrality.
Embodiment
Further specify flesh and blood of the present invention with example below, but content of the present invention is not limited to this.
Embodiment 1
1. bagasse, useless bacterium are surrounded by fermentative processing: the bagasse of collecting and useless bacterium bag are struck diffusing, tiling, airing, pulverizing, will contain that 1.0% ammoniumsulphate soln evenly is sprayed at bagasse, useless bacterium is wrapped, control moisture 65% is piled up height overall 1.5m.During windrow, require windrow loose, be beneficial to ventilation, and be beneficial to the microbial reproduction in the windrow.Coating film paper is beneficial to insulation, reduces moisture evaporation.Turning in per 10 days, monitoring C/N.Ferment 40 days the time, the C/N ratio is 35.2.
2. the preparation of modified chitosan solution: get the 1g chitosan, 1% acetum 100 grams, the NaOH solution with 10% is neutralized to neutrality, is diluted with water to 200ml again, gets final product, and wherein modified chitosan is that deacetylation is greater than 92%.
3. the preparation of multifunctional soil improvement regulator is (with 667m
2Consumption unit): the useless bacterium that ferments of getting modified chitosan solution 2.5L, 100g polyacrylamide and the 200kg of step 2 preparation is wrapped, the bagasse thorough mixing that ferments of 100kg, even, can use according to a conventional method.
Embodiment 2
1. bagasse, useless bacterium are surrounded by fermentative processing: the bagasse of collecting and useless bacterium bag are struck diffusing, tiling, airing, pulverizing, will contain that 0.5% ammonium nitrate solution evenly is sprayed at bagasse, useless bacterium is wrapped, control moisture 60% is piled up height overall 2m.During windrow, require windrow loose, be beneficial to ventilation, and be beneficial to the microbial reproduction in the windrow.Coating film paper is beneficial to insulation, reduces moisture evaporation.Turning in per 10 days, monitoring C/N.Ferment 35 days the time, the C/N ratio is 30.6.
2. the preparation of modified chitosan solution: get the 1g chitosan, 2% acetum 100 grams, the NaOH solution with 10% is neutralized to neutrality, is diluted with water to 200ml again, gets final product.
3. the preparation of multifunctional soil improvement regulator is (with 667m
2Consumption unit): the useless bacterium that ferments of getting modified chitosan solution 5L, 150g polyacrylamide and the 200kg of step 2 preparation is wrapped, the bagasse thorough mixing that ferments of 200kg, even, can use according to a conventional method.
Embodiment 3
1. bagasse, useless bacterium are surrounded by fermentative processing: the bagasse of collecting and useless bacterium bag are struck diffusing, tiling, airing, pulverizing, will contain that 1.5% urea soln evenly is sprayed at bagasse, useless bacterium is wrapped, control moisture 70% is piled up height overall 1.2m.During windrow, require windrow loose, be beneficial to ventilation, and be beneficial to the microbial reproduction in the windrow.Coating film paper is beneficial to insulation, reduces moisture evaporation.Turning in per 10 days, monitoring C/N.Ferment 30 days the time, the C/N ratio is 25.4.
2. the preparation of modified chitosan solution: get the 1g chitosan, 3% acetum 100 grams, the NaOH solution with 10% is neutralized to neutrality, is diluted with water to 200ml again, gets final product.
3. the preparation of multifunctional soil improvement regulator is (with 667m
2Consumption unit): the useless bacterium that ferments of getting modified chitosan solution 6.5L, 200g polyacrylamide and the 300kg of step 2 preparation is wrapped thorough mixing, even, can use according to a conventional method.
Embodiment 4
1. bagasse, useless bacterium are surrounded by fermentative processing: the bagasse of collecting and useless bacterium bag are struck diffusing, tiling, airing, pulverizing, will contain that 1.5% ammonium hydrogen phosphate solution evenly is sprayed at bagasse, useless bacterium is wrapped, control moisture 55% is piled up height overall 1.8m.During windrow, require windrow loose, be beneficial to ventilation, and be beneficial to the microbial reproduction in the windrow.Coating film paper is beneficial to insulation, reduces moisture evaporation.Turning in per 10 days, monitoring C/N.Fermentation in 32 days is finished, and the C/N ratio is 28.5.
2. the preparation of modified chitosan solution: get the 1g chitosan, 1% acetum 100 grams, the NaOH solution with 10% is neutralized to neutrality, is diluted with water to 200ml again, gets final product.
3. the preparation of multifunctional soil improvement regulator is (with 667m
2Consumption unit): get the bagasse thorough mixing that ferments, even of modified chitosan solution 7L, 200g polyacrylamide and the 300kg of step 2 preparation, can use according to a conventional method.
Claims (5)
1. multifunctional soil improvement regulator: it is characterized in that containing: organic waste, massfraction 0.5%～5% nitrogenous fertilizer, modified chitosan, polyacrylamide, wherein organic waste and 0.1%～1% modified chitosan solution and polyacrylamide ratio massfraction are 1: 0.5～5: 0.01～0.05, the massfraction ratio of C/N is 20～50 in the described machine waste, organic waste is bagasse, useless bacterium bag, and wherein modified chitosan is that deacetylation is greater than 92%.
2. the preparation method of a multifunctional soil improvement regulator: it is characterized in that containing the following step:
(1) organic waste bagasse, the pre-solarization of useless bacterium bag are handled, and add massfraction 0.5%～5% nitrogenous fertilizer spontaneous fermentation, make the massfraction ratio of C/N in the organic waste be controlled at 20～50;
(2) organic waste that ferments and 0.1%～1% modified chitosan solution and polyacrylamide are mixed by 1: 0.5～5: 0.01～0.05 massfraction, multifunctional soil improvement regulator.
3. according to the preparation method of the multifunctional soil improvement regulator of claim 2, it is characterized in that: described nitrogenous fertilizer is a kind of in ammonium sulfate, ammonium borate, urea, ammonium hydrogen phosphate, the primary ammonium phosphate, and wherein modified chitosan is that deacetylation is greater than 92%.
4. according to the preparation method of the multifunctional soil improvement regulator of claim 2, it is characterized in that: described spontaneous fermentation comprises: organic waste is pulverized, nitrogenous fertilizer solution evenly is sprayed on the organic waste, control fermentation moisture 50%～70%, and piling height is 1.2～2m; During windrow, require windrow loose, be beneficial to ventilation, and be beneficial to the microbial reproduction in the windrow; Coating film paper is beneficial to insulation, reduces moisture evaporation; Turning in per 10 days, monitoring C/N massfraction ratio, when its at 20～50, spontaneous fermentation is finished.
5. according to the preparation method of the multifunctional soil improvement regulator of claim 2, it is characterized in that: the compound method of described 0.1%～1% modified chitosan solution is: be dissolved in the modified chitosan of 10 parts of weight that mass concentration is 1%～3%, weight part is in 200～2000 acetums, the sodium hydroxide solution with 10% transfers to neutrality.
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| CN2010102974912A CN101979461A (en) | 2010-09-30 | 2010-09-30 | Multifunctional soil improvement regulator and preparation method thereof |
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| CN2010102974912A CN101979461A (en) | 2010-09-30 | 2010-09-30 | Multifunctional soil improvement regulator and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105087016A (en) * | 2015-09-09 | 2015-11-25 | 南宁汉和生物科技有限公司 | Soil conditioner rich in marine substances |
| CN105503477A (en) * | 2016-01-06 | 2016-04-20 | 中山市绿浪助剂有限公司 | Soil conditioning modifier |
| CN105993756A (en) * | 2016-04-21 | 2016-10-12 | 芜湖格林美提子生态园有限公司 | Planting method for mulberry |
| CN107691153A (en) * | 2017-10-26 | 2018-02-16 | 许连峰 | A kind of implantation methods for improving konjak functional component content |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101514290A (en) * | 2009-03-27 | 2009-08-26 | 昆明理工大学 | Multifunctional soil improvement regulator and preparation method |
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2010
- 2010-09-30 CN CN2010102974912A patent/CN101979461A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101514290A (en) * | 2009-03-27 | 2009-08-26 | 昆明理工大学 | Multifunctional soil improvement regulator and preparation method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105087016A (en) * | 2015-09-09 | 2015-11-25 | 南宁汉和生物科技有限公司 | Soil conditioner rich in marine substances |
| CN105087016B (en) * | 2015-09-09 | 2018-08-07 | 南宁汉和生物科技股份有限公司 | Soil conditioner rich in ocean substance |
| CN105503477A (en) * | 2016-01-06 | 2016-04-20 | 中山市绿浪助剂有限公司 | Soil conditioning modifier |
| CN105993756A (en) * | 2016-04-21 | 2016-10-12 | 芜湖格林美提子生态园有限公司 | Planting method for mulberry |
| CN107691153A (en) * | 2017-10-26 | 2018-02-16 | 许连峰 | A kind of implantation methods for improving konjak functional component content |
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Application publication date: 20110223 |