CN1332198A - Multifunctional hydrolyzed mulching liquid and its compounding process - Google Patents
Multifunctional hydrolyzed mulching liquid and its compounding process Download PDFInfo
- Publication number
- CN1332198A CN1332198A CN 01130944 CN01130944A CN1332198A CN 1332198 A CN1332198 A CN 1332198A CN 01130944 CN01130944 CN 01130944 CN 01130944 A CN01130944 A CN 01130944A CN 1332198 A CN1332198 A CN 1332198A
- Authority
- CN
- China
- Prior art keywords
- liquid
- mulching
- hydrolyzed
- film
- multifunctional
- 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.)
- Pending
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title description 8
- 230000008569 process Effects 0.000 title description 4
- 238000013329 compounding Methods 0.000 title 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 12
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 claims description 8
- 229920002472 Starch Polymers 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000008107 starch Substances 0.000 claims description 6
- 235000019698 starch Nutrition 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 5
- MEIRRNXMZYDVDW-MQQKCMAXSA-N (2E,4E)-2,4-hexadien-1-ol Chemical compound C\C=C\C=C\CO MEIRRNXMZYDVDW-MQQKCMAXSA-N 0.000 claims description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 4
- 229920002125 Sokalan® Polymers 0.000 claims description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 4
- 239000004202 carbamide Substances 0.000 claims description 4
- 230000016615 flocculation Effects 0.000 claims description 4
- 238000005189 flocculation Methods 0.000 claims description 4
- 235000019359 magnesium stearate Nutrition 0.000 claims description 4
- 239000004584 polyacrylic acid Substances 0.000 claims description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 2
- 230000004927 fusion Effects 0.000 claims description 2
- 238000006467 substitution reaction Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims 1
- 239000002689 soil Substances 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 5
- 239000003337 fertilizer Substances 0.000 abstract description 5
- -1 regulator Substances 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 3
- NPYPAHLBTDXSSS-UHFFFAOYSA-N Potassium ion Chemical compound [K+] NPYPAHLBTDXSSS-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 3
- 229910001414 potassium ion Inorganic materials 0.000 abstract description 3
- 239000000654 additive Substances 0.000 abstract description 2
- 230000000996 additive effect Effects 0.000 abstract description 2
- 229920000642 polymer Polymers 0.000 abstract description 2
- 235000013619 trace mineral Nutrition 0.000 abstract description 2
- 239000011573 trace mineral Substances 0.000 abstract description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract 1
- 230000002363 herbicidal effect Effects 0.000 abstract 1
- 239000004009 herbicide Substances 0.000 abstract 1
- 239000012263 liquid product Substances 0.000 abstract 1
- 239000000575 pesticide Substances 0.000 abstract 1
- 239000000047 product Substances 0.000 abstract 1
- 238000005507 spraying Methods 0.000 abstract 1
- 239000002362 mulch Substances 0.000 description 17
- 241000196324 Embryophyta Species 0.000 description 8
- 230000015556 catabolic process Effects 0.000 description 7
- 238000006731 degradation reaction Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- 239000004594 Masterbatch (MB) Substances 0.000 description 6
- 238000009333 weeding Methods 0.000 description 6
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 3
- 238000009313 farming Methods 0.000 description 3
- 229920001684 low density polyethylene Polymers 0.000 description 3
- 239000004702 low-density polyethylene Substances 0.000 description 3
- 230000007180 physiological regulation Effects 0.000 description 3
- 239000002985 plastic film Substances 0.000 description 3
- 229920006255 plastic film Polymers 0.000 description 3
- 239000004627 regenerated cellulose Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 230000000153 supplemental effect Effects 0.000 description 3
- 239000003905 agrochemical Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 235000011089 carbon dioxide Nutrition 0.000 description 2
- 230000008029 eradication Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 235000017060 Arachis glabrata Nutrition 0.000 description 1
- 244000105624 Arachis hypogaea Species 0.000 description 1
- 235000010777 Arachis hypogaea Nutrition 0.000 description 1
- 235000018262 Arachis monticola Nutrition 0.000 description 1
- 244000241235 Citrullus lanatus Species 0.000 description 1
- 235000012828 Citrullus lanatus var citroides Nutrition 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 208000007101 Muscle Cramp Diseases 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000009089 cytolysis Effects 0.000 description 1
- 230000003413 degradative effect Effects 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 235000020232 peanut Nutrition 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 238000012667 polymer degradation Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 230000010496 root system development Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000009331 sowing Methods 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
Landscapes
- Protection Of Plants (AREA)
Abstract
The present invention relates to an environment protecting agricultural mulching liquid of polymer and special additive. The liquid product with easy to use and may be applied directly to the seeded seedling bed through spraying, and the sprayed liquid penetrates into soil to form one layer of seedling bed covering film with excellent heat insulating and moisture retaining effect. Proper amount of chemical fertilizer, trace elements, herbicide, regulator, pesticide, etc. may be also applied simultaneously. The film may be hydrolyzed gradually to increase nitrogen, potassium ion and CO2 in soil without any pollution. The liquid is one kind of multifunctional farm product.
Description
(1) technical field
The present invention relates to a kind of multifunctional hydrolyzed mulching liquid and blending process thereof, is to be aided with the environment-friendly type agricultural mulching liquid that specialist additive is made with macromolecular material.Belong to a kind of novel means of agricultural production material that adopts fine chemical technology to produce.
Multifunctional hydrolyzed mulching liquid attitude product is used conveniently, can be sprayed and can drench, and is applied directly on the seeded seedbed, and its liquid infiltrates soil at once and the film forming of condensing on the face of land tightly covers the seedbed, and insulation soil moisture conservation effect is not less than general solid mulch film at present.And when arrived rainy season, after several the rain, the just hydrolysis gradually of this film can not cause " white pollution " as present general solid mulch film.Its resolvent nitrogen, potassium ion and the carbonic acid gas, can not cause any pollution in increasing soil.
In addition, owing to be liquid, it is more convenient to add other compositions, an amount of chemical fertilizer, trace element and weedicide, conditioning agent, agrochemical can be added in it and use simultaneously, and therefore this product has just had multiple function.So this is not only and solves the desirable surrogate that present general solid mulch film causes " white pollution " difficult problem, also be a kind of market potential inexpensive multifunctional agricultural product innovation greatly.
The multifunctional hydrolyzed mulching raw material is easy to get, and technology is also uncomplicated, and cost is more cheap than the solid mulch film, in case enter suitability for industrialized production, will be promoted rapidly and popularize, and receives huge social benefit and economic benefit.
(2) background technology
Along with the raising day by day of scientific farming level, northern China low temperature farmland and vast arid farming district are in farming activities such as sowing in ice crust, the short seedling of soil moisture conservation and early rice seedling, and film-mulching technique obtains very big popularization and popularizes.According to the introduction of national supply and marketing head office, in recent years, agricultural mulching has become the third-largest material used for agriculture after chemical fertilizer, agricultural chemicals.Nearly 100,000,000 mu of the area that China in 1997 carries out plastic film mulching cultivation uses mulch film to reach 400,000 tons, and national membrane covering area in 2000 is up to 1.8 hundred million mu, and the mulch film sales volume reaches more than 600,000 tons.Plastic mulching cultivation technology has become the effective means that gets agricultural profit, and is described as " White Revolution " on the agricultural.But because polyethylene ground film use year after year that in a large number can not natural degradation; the residual film that accumulates in the fields is on the increase; wicking action of their blocking-up soil and the root system development of plant; result in hand cramps to agriculture production; the negative effect of crop failure has appearred in the serious area of certain situation; formed " white pollution ", become the ecological protection problem that needs to be resolved hurrily.Therefore, produce agricultural mulching and become the task of top priority with natural degradation performance.In addition, reflection according to agricultural plant protection department and vast farmers, behind plastic-film-covered cultivation, the weeds procreation is also very vigorous in the film, owing to be stamped plastic film and can't use the manual method weeding, luxuriant weeds influence the growth of crop, and then influence the performance of membrane covering precocity, high yield effect with plant contention nutrient and moisture.Everything all the development and production early of the relevant enterprise of an urgent demand go out the agricultural mulching that can degrade and have weeding function and come.
China is the big country that agricultural mulching is produced, and all there is agricultural mulching manufacturer of certain scale in each province, and overall throughput is more than 500,000 tons.Producing functional agricultural mulching can carry out on existing equipment, and need not scrap build.At first the problem that will solve is that development and production as early as possible go out relevant functional masterbatch.
Can not degrade and the white pollution that causes for new LDPE (film grade) class mulch film, scientist all takes much count of both at home and abroad, the report that new technology, novel material, product innovation aspect are also constantly arranged both at home and abroad in recent years, what at first research and develop such as Japan is the Biodegradable films of masterbatch with the regenerated cellulose; And German at first research and development is the Light ?lysis Film of masterbatch with the heat-sensitive resin; China uses for reference the both biodegradable also photodegradable novel controlled degradation mulch film that the interpolation treated starch is made in regenerated cellulose and heat-sensitive resin of above-mentioned technological development development etc., all is effective substitute products of nondegradable new LDPE (film grade) class film.
Target of the present invention and task are that progressively not only degradable but also agricultural mulching masterbatch with weeding function substituted the common polythene mulch film that can not degrade that widely uses at present and (draw according to relevant research with other; polyethylene is degraded fully under field conditions (factors) to disappear and is fallen to need the time in about 200 years) masterbatch; to solve serious day by day " white pollution " problem; conscientiously protect agroecological environment
The novel environment friendly product that this liquid multifunctional hydrolyzed mulching liquid is produced with the degradable masterbatch just, its residual film can drench natural degradation in the profit at rainwater, (only needing two or three drizzle or moderate rain) resolvent is nitrogen, potassium ion and carbonic acid gas, fertilizer efficiency is arranged, pollution-free, add an amount of weed eradication composition therein and can have the weed eradication function concurrently.Simultaneously, as required, also can add a certain proportion of chemical fertilizer and plant modifying agent, sterilant, it is multi-functional to make it to integrate insulation, soil moisture conservation, getting fat, weeding, deinsectization, supplemental crop physiological regulation etc., and the good assistant of a person's extraordinary power of getting what he wants is provided for friend peasant.
But the common issue with of these products is high a lot of than the production cost of at present general new LDPE (film grade) mulch film, and inconvenience is vast farmers acceptance, and market imports certain difficulty, thereby is difficult to rapid popularization.Simultaneously, because the production technique of these product innovations all is to follow the conventional thought pattern of former polyethylene ground film---use behind the system film earlier, just can't omit system film cost.And, the film of making, thickness can not be adjusted flexibly again, just can't be satisfied fully to user's multiple thickness demand, let alone the multiple function that has insulation, soil moisture conservation, getting fat, weeding, deinsectization, supplemental crop physiological regulation concurrently.The research and development of liquid multifunctional hydrolyzed mulching have successfully solved the problems referred to above, special application patent of invention.
(3) summary of the invention
Multifunctional hydrolyzed mulching liquid not only integrates multiple functions such as insulation, soil moisture conservation, getting fat, weeding, deinsectization, supplemental crop physiological regulation, it is simple and pollution-free to degrade, more valuable is that it is with low cost---also lower by 1/5th than at present general solid mulch film price, and be easily the peasant and accept.Simultaneously, it is used conveniently, can spray and can drench, and also can select any thickness by regulating concentration, can satisfy the different requirements in Different Crop and different plot.Thereby it is more with practical value than biological degradation regenerated cellulose film and photodegradative heat-sensitive resin film than general solid mulch film advanced person, is more suitable for current market comsupton level.
Simultaneously, through on probation repeatedly, not only film forming is fast to prove it, and because good penetrability combines tightly with soil, sealing effectiveness is rather good.In addition,, effectively use area ratio and be much higher than the solid mulch film that current strip free of discontinuities covering is used, avoided the strip free of discontinuities to cover the wasting phenomenon of using 50% idle work because of using by the strain spray.Also proof on probation repeatedly, the easy easy grasp of this product application process, the peasant just just listens and understands, and is easy to learn, once with liking, do not have any popularization obstacle, so this project technology is sophisticated.
Multifunctional hydrolyzed mulching liquid is a kind of hydrolyzed mulching liquid of being made by the following weight proportion raw material:
Polyvinyl alcohol 15～18kg
Polyacrylic acid 5～8kg
Hydroxypropylated starch (substitution value 0.06) 7.0～8.0kg
Sorbyl alcohol 1.28～2.08kg
Ethylene glycol 1.5～2.5kg
Magnesium Stearate 0.02～0.04kg
Urea 0.2～0.4kg
Production technique is mainly as follows suddenly step by step:
(1) polyvinyl alcohol, polyacrylic acid, hydroxypropylated starch and sorbyl alcohol are joined in the extrusion machine, pass through room temperature and be heated to 130 ℃, 130 ℃, 100 ℃, 100 ℃ and 6 humidity provinces of 150 ℃/30～40bar.
(2) raw material after the extruding of (1) step is added the further extruding of Magnesium Stearate, urea and ethylene glycol again and obtain the fusion flocculation agent.
(3) add quantitative water in dissolving tank, turn on agitator slowly is sprinkled into flocculation agent after the extruding of (2) step, and according to the type of agitator, stirring velocity is controlled at 100-300 rev/min and is advisable.(stirring velocity makes easily too slowly that polymer beads sinks, conglomeration in water.Speed is too fast, can cause polymer degradation.) promptly obtain multifunctional hydrolyzed mulching liquid.
This mulch film sprays back film forming rapidly, and the mulch film degradation time can be according to crop growth time needs, and the local climate situation is regulated and control voluntarily.It can be degraded in 3-12 months.The fastest can the beginning about one month degraded.But we generally recommend the mulch film degradation time should be not less than three months.
(4) specific embodiment:
Through in the farmland to corn, cotton, vegetables, peanut, the crops long run tests such as watermelon are seen Survey, this hydrolyzed mulching possesses heating of common ground film fully, and the performances such as soil moisture conservation effect and intensity meet The instructions for use of crops. Its crop growing state and output all maintain an equal level with common ground film. This hydrolyzed mulching is not Contain harmful components, after tested soil and crop are not produced murder by poisoning.
2. controllability is good, and induction period is stable, detects through tanning by the sun with the farmland practical application, and exist induction period More than 60 days, big cracking time can maintain 70-80 days substantially. Meet the instructions for use in farmland, Through Continuous Observation in a few years, this mulch film is under exposure condition, and it is more thorough to degrade, basically then Can reach Powdered.
3. hydrolyzed mulching is owing to spray film forming everywhere, and every mu of farmland consumption is few, and it is low to cover cost, than 8-10 microns common ground film reduces agricultural and drops into 1/4-1/2. The peasant is easy to accept. Therefore, The two degradative plastic films of this non-starch type are easy to promote in the whole nation.
4. hydrolyzed mulching can be observed growth of microorganism breeding feelings under the condition of unglazed photograph (burying soil) Condition.
Comprehensive its technology reaches the top standard of current similar product.
Claims (2)
1, a kind of multifunctional hydrolyzed mulching liquid is characterized in that it is a kind of hydrolyzed mulching liquid of being made by the following weight proportion raw material: polyvinyl alcohol 15～18kg polyacrylic acid 5～8kg hydroxypropylated starch (substitution value 0.06) 7.0～8.0kg sorbyl alcohol 1.28～2.08kg ethylene glycol 1.5～2.5kg Magnesium Stearate 0.02～0.04kg urea 0.2～0.4kg
2, hydrolyzed mulching liquid and preparation method thereof according to claim 1, it is characterized in that: (1) joins polyvinyl alcohol, polyacrylic acid, hydroxypropylated starch and sorbyl alcohol in the extrusion machine, passes through room temperature and is heated to 130 ℃, 130 ℃, 100 ℃, 100 ℃ and 6 humidity provinces of 150 ℃/30～40bar.(2) raw material after the extruding of (1) step is added the further extruding of Magnesium Stearate, urea and ethylene glycol again and obtain the fusion flocculation agent.(3) add quantitative water in dissolving tank, turn on agitator slowly is sprinkled into flocculation agent after the extruding of (2) step, and stirring velocity is controlled at 100-300 rev/min.Promptly obtain multifunctional hydrolyzed mulching liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01130944 CN1332198A (en) | 2001-08-28 | 2001-08-28 | Multifunctional hydrolyzed mulching liquid and its compounding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01130944 CN1332198A (en) | 2001-08-28 | 2001-08-28 | Multifunctional hydrolyzed mulching liquid and its compounding process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1332198A true CN1332198A (en) | 2002-01-23 |
Family
ID=4670261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01130944 Pending CN1332198A (en) | 2001-08-28 | 2001-08-28 | Multifunctional hydrolyzed mulching liquid and its compounding process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1332198A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1331983C (en) * | 2004-06-15 | 2007-08-15 | 西北大学 | Water absorbing and preserving polymer soil protecting net film spray agent and its preparation |
| CN100443529C (en) * | 2006-10-20 | 2008-12-17 | 中国科学院长春应用化学研究所 | Multifunctional degradable liquid-state mulch film and its preparing method |
| CN105037818A (en) * | 2015-08-20 | 2015-11-11 | 江苏省农业科学院 | Application method of biomass liquid adhesive material |
| CN105419195A (en) * | 2016-01-25 | 2016-03-23 | 何辉海 | Degradable liquid mulching film with deinsectization function and preparation method thereof |
| CN106866307A (en) * | 2017-03-03 | 2017-06-20 | 王书秀 | A kind of liquid-state mulch film constituted as major ingredient with feces of livestock and poultry and preparation method |
| CN110249874A (en) * | 2019-07-19 | 2019-09-20 | 陕西科技大学 | A kind of powdery covering material and its application method for inhibiting moisture evaporation for Arid&semi-arid area |
-
2001
- 2001-08-28 CN CN 01130944 patent/CN1332198A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1331983C (en) * | 2004-06-15 | 2007-08-15 | 西北大学 | Water absorbing and preserving polymer soil protecting net film spray agent and its preparation |
| CN100443529C (en) * | 2006-10-20 | 2008-12-17 | 中国科学院长春应用化学研究所 | Multifunctional degradable liquid-state mulch film and its preparing method |
| CN105037818A (en) * | 2015-08-20 | 2015-11-11 | 江苏省农业科学院 | Application method of biomass liquid adhesive material |
| CN105419195A (en) * | 2016-01-25 | 2016-03-23 | 何辉海 | Degradable liquid mulching film with deinsectization function and preparation method thereof |
| CN106866307A (en) * | 2017-03-03 | 2017-06-20 | 王书秀 | A kind of liquid-state mulch film constituted as major ingredient with feces of livestock and poultry and preparation method |
| CN110249874A (en) * | 2019-07-19 | 2019-09-20 | 陕西科技大学 | A kind of powdery covering material and its application method for inhibiting moisture evaporation for Arid&semi-arid area |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103524230B (en) | Biological fertilizer special for flowers and preparation method thereof | |
| CN106117622A (en) | A kind of degradable mulch and preparation method | |
| CN101891564A (en) | Method for preparing biological compound fertilizer | |
| CN105918002A (en) | Cultivation soil for climbing plants and preparation method for cultivation soil | |
| CN1332198A (en) | Multifunctional hydrolyzed mulching liquid and its compounding process | |
| CN102295934B (en) | Liquid agricultural mulching film and production method thereof | |
| Dazhong et al. | Sustainable and productive agricultural development in China | |
| CN104221792A (en) | Method for preparing degradable liquid film by utilizing kitchen waste and biologic materials and product | |
| Riaz et al. | Effect of mulching on crop production and soil health in dry land region: An overview | |
| CN101322471B (en) | Soilless substrate for breeding crops | |
| CN101037327A (en) | Nano far-infrared composite material | |
| CN102972393A (en) | Agricultural weeding earth membrane capable of being completely biodegraded | |
| CN108496449A (en) | A kind of administering method of soil hardening | |
| CN1164714C (en) | Method for rapidly increasing soil organic matter of dry-farming land | |
| CN110128770A (en) | A kind of degradable black weeding film and preparation method thereof and application method | |
| CN1048221A (en) | Biodegradable high-molecular film and manufacture method thereof and purposes | |
| CN1687193A (en) | Composite moisture holding agent of humic acid and preparation method | |
| CN107793720A (en) | Special whole life cycle design PP Pipe Compound of peanut and preparation method thereof | |
| CN102408894A (en) | Liquid agricultural mulching film and production method thereof | |
| CN107868420A (en) | A kind of complete biodegradable peanut ground film special material and preparation method thereof | |
| CN104429265B (en) | A kind of method that postpones Japanese plum autumn and winter fallen leaves | |
| CN102517032A (en) | Fully-degradable liquid medical membrane for paddy field | |
| CN107641007A (en) | A kind of grassland special fertilizer containing polypeptide | |
| CN113079965A (en) | Planting method for planting field | |
| CN101445401B (en) | Manufacturing method of composite microorganism fertilizer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING LUOMENG CHUANGYE BIOTECHNOLOGY DEVELOPMEN Free format text: FORMER OWNER: LUO MENG Effective date: 20040209 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20040209 Address after: 100078,Room 7, building block three, Fangzhuang Square Garden, Beijing, Fengtai District, Applicant after: Beijing LuoMeng PioneeFive Ring Biological Technology Development Co., Ltd. Address before: 570208 Hainan province Haikou city haidiandao Peace Avenue three cross road Bixiling District Court building C2 Applicant before: Luo Meng |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |