CN1277228A - Multifunctional degradable black farm mulching - Google Patents
Multifunctional degradable black farm mulching Download PDFInfo
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- CN1277228A CN1277228A CN 99109026 CN99109026A CN1277228A CN 1277228 A CN1277228 A CN 1277228A CN 99109026 CN99109026 CN 99109026 CN 99109026 A CN99109026 A CN 99109026A CN 1277228 A CN1277228 A CN 1277228A
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- starch
- mulching
- pitch
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- degradable black
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Abstract
The black mulch film capable of being in-situ formed by an atomizer consists of asphalt, starch, film-forming agent, surfactant, stabilizer, water, chemical fertilizer, pesticide, herbicide, etc. It is degradable biologically and by light and its component may be varied for meeting the need of different crop. In addition, the use of black asphalt can strengthen its soil temperature increasing effect, reduce greatly the production cost, and eliminate the environmental pollution of mulch film. It has also the functions of pesticide, herbicide and fertilizer.
Description
The present invention relates to a kind of multi-functional can biological and optically degradable black farm mulching.
Utilize the plastic film cultivation technique to become one of well-known ten multi-form agriculture technology in this century.Use mulch film and can satisfy farm crop insulation, soil moisture conservation, keep fertility to reach the needs of increasing both production and income.But because in physical environment, plastics self are difficult to decompose, and are scattered in soil and the physical environment, have destroyed Soil structure, cause the pollution to soil and environment.For example when using agricultural polyethylene film continuously, remain in the polyethylene fragment in the soil, cut off the capillary action of soil, the output of farm crop is descended rapidly.Data shows: wheatland used 2 years continuously, and wheat yield 9% was used 5 years continuously, and wheat yield is more than 20%.Therefore studying degradable plastics has caused the great interest of people.Initial degradable mulch is starch and organic acid thereof to be incorporated in the common polyethylene film go, because polyethylene can not be by microbiological degradation, this class film is lowered the temperature day by day.In recent years, become the focus of degradable membrane research based on the degradable mulch of polyvinyl alcohol, but because polyvinyl alcohol price higher (about 20,000 yuan/ton), make the degradative plastics cost higher, as polyvinyl alcohol consumption in the degradative plastic film of mentioning in Chinese patent CN1104656 and the CN1114327 patent all up to more than 30%.
Because petroleum pitch is the natural polymer black material, under illumination and biological action, can be changed into the humic acids branch and take off, therefore utilize emulsified bitumen to spray film forming both at home and abroad, heat soil moisture conservation as farm crop or roadside, road herbaceous soil covering, improve crop yield or sod quality, obtained good result.But because the emulsified bitumen film forming is slow, the relative plastics film of film is thicker, and membrane porosity is bigger, and the soil moisture conservation performance is relatively poor relatively.
The objective of the invention is to overcome have now and can fall price height in the plastic sheeting for farm use technology, complex process, the shortcoming of heat absorption capacity difference, and provide a kind of heat absorption soil moisture conservation performance good, adapt to the Different Crop growth needs, corruption is decomposed voluntarily, and the scene that integrates agricultural chemicals, fertilizer, mulch film sprays film forming multi-functional black farm mulching.
The present invention realizes by following measure.
Contain starch, pitch, membrane-forming agent, tensio-active agent, stablizer, little fertilizer, chemical fertilizer, agricultural chemicals, weedicide etc. in the prescription of the present invention.The present invention adopts pitch and membrane-forming agent for supporting, with starch as biodegradable inductor, film forming toughener, and, be aided with nutrients such as chemical fertilizer and little fertilizer, and add stablizer such as water glass to improve the stability of emulsion by degradation speed and time that its content in film comes controlling diaphragm.
Concrete prescription of the present invention contains (weight %):
Pitch 10---50 starch 0---30
Water 40---70 tensio-active agent 0.5---1.5
Stablizer 0---10 chemical fertilizer 0---10
Little fertile 0---7 agricultural chemicals is an amount of
An amount of membrane-forming agent 0---10 of weedicide
The compound method of multifunctional degradable black farm mulching is evenly to get final product at normal pressure 70---130 ℃ of following mixing and emulsifying by above-mentioned composition.
Multifunctional degradable black farm mulching can stablize remain in six months not stratified.
Another purpose of the present invention is that to overcome existing plastic film film-forming technology process complicated and provide a kind of scene to spray the method for film forming saving of work and time.Emulsion is mixed 1---2 times of water dilute in the atomizer of evenly or directly packing into, directly spray on the ground and make film, common peasant all can operate.Generally spray and make film the best, do not spray in the rainy day at fine day.
The present invention has the following advantages:
1, the present invention adopts natural black macromolecular material petroleum pitch, has improved the heat absorption capacity of plastic sheeting for farm use greatly, has reduced the production cost of degradable plastic sheeting for farm use significantly, has rationally utilized petroleum resources.
2, adopt starch to make properties-correcting agent, improved the soil moisture conservation performance of keeping humidity of stability in storage, film-forming properties and the film of emulsion.
3, the emulsion preparation process is simple, can produce with simple whipping device, and stationary phase is long.
4, since pitch can degenerate to be decomposed into and increase the characteristics that integrate agricultural chemicals, fertilizer and plastic sheeting for farm use when organic acid thoroughly solves the mulch film relic to the soil environmental pollution again.
5, the scene sprays and makes film, and saving of work and time is simple to operate.
When 6, farm crop or grass are emerged,, can emerge naturally, save great amount of manpower and material resources without artificial seedling setting.
Describe the present invention in detail below in conjunction with embodiment.
Embodiment 1 gets 30 parts of pitches, 5 parts of phosphate ester starches, 0.5 part of anion surfactant (sodium lauryl sulphate), 0.5 part of sodium napthionate, 5 parts of potash water glasss, 3 parts in urea, 55 parts in water, 1 part of RE microbial fertilizer.
Phosphate ester starch is dissolved in 45 parts of water, add 1 part in tensio-active agent after being heated to 80 ℃, stir, join then in the pitch that is heated to be 70---80 ℃, keep this temperature under the rotating speed of 800---1500r/min, to stir 3---10 minute, cool to normal temperature, add the aqueous solution that is dissolved with urea, water glass, rare-earth fertilizer etc. again, stirring gets final product.
Embodiment 2 gets 40 parts of pitches, 2 parts of carboxymethyl starch, 1.2 parts of anion surfactants (lignin amine), 5 parts of water glass, 3 parts in ammonium sulfate, 2 parts in saltpetre, 46.8 parts in water, 1 part of rare-earth fertilizer.Compound method is the same.
Above product is made film on corn ground.Film split in 30 days, all degradeds in 60 days.Per mu yield improves 20%, and the ripening stage improved 7 days.
Claims (9)
1, the present invention relates to a kind of multifunctional degradable black farm mulching.It is characterized in that being sprayed on the emulsion that mixes by starch, pitch membrane-forming agent, tensio-active agent, stablizer, water, plant growth required nitrogen, phosphorus, potash fertilizer and little fertilizer, agricultural chemicals, weedicide etc. the scene, ground with atomizer and making film.
2, agricultural mulching according to claim 1 is characterized in that composition and content following (weight %)
Pitch 10---50 starch 0---30
Water 40---70 tensio-active agent 0.5---1.5
The little fertile 0---7 of stablizer 0---10
Chemical fertilizer 0---10 agricultural chemicals 0---5
An amount of membrane-forming agent 0---10 of weedicide
3, multifunctional degradable black farm mulching according to claim 1 is characterized in that starch is W-Gum, potato starch, phosphate ester starch, Sumstar 190, etherification modified starch, carboxy-modified starch, hydroxyl modification starch, graft modified starch or biological enzyme treated starch.
4, multifunctional degradable black farm mulching according to claim 1 is characterized in that pitch is native asphalt, straight run petroleum pitch, byerlyte, solvent deoiling pitch or visbreaking petroleum pitch.
5, multifunctional degradable black farm mulching according to claim 1 is characterized in that tensio-active agent is anion surfactant, cats product, amphoterics and complexed surfactant thereof.
6, multifunctional degradable black farm mulching according to claim 1 is characterized in that stablizer is sodium silicate (Na
2OnSiO
2), potash water glass (K
2OnSiO
2).
7, multifunctional degradable black farm mulching according to claim 1 is characterized in that little fertilizer is one or more miscellanys in rare earth element salt, water-soluble silicate, zinc salt, the borate, and according to the crop difference, adjusts its ratio of mixture.
8,, it is characterized in that chemical fertilizer is one or more mixtures in urea, bicarbonate of ammonia, ammonium nitrate, calcium superphosphate, monocalcium phosphate, primary ammonium phosphate, potassiumphosphate, change potassium, vitriolate of tartar, potassium silicate, salt of wormwood and the ammonium sulfate according to the described multifunctional degradable black farm mulching of claim 1.According to the crop difference, adjust its ratio of mixture
9,, it is characterized in that membrane-forming agent is one or more mixtures in carboxymethyl cellulose, polyvinyl alcohol, polyacrylamide, the starch, and, adjust its ratio of mixture according to the crop difference according to the described multifunctional degradable black farm mulching of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99109026 CN1277228A (en) | 1999-06-14 | 1999-06-14 | Multifunctional degradable black farm mulching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99109026 CN1277228A (en) | 1999-06-14 | 1999-06-14 | Multifunctional degradable black farm mulching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1277228A true CN1277228A (en) | 2000-12-20 |
Family
ID=5273648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99109026 Pending CN1277228A (en) | 1999-06-14 | 1999-06-14 | Multifunctional degradable black farm mulching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1277228A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101828495A (en) * | 2010-04-09 | 2010-09-15 | 常州百利基生物材料科技有限公司 | Biodegradable mulch with compound function |
| CN102517032A (en) * | 2011-12-08 | 2012-06-27 | 董广林 | Fully-degradable liquid medical membrane for paddy field |
| CN102599030A (en) * | 2012-01-19 | 2012-07-25 | 北京化工大学 | Degradable sludge-based mulching film and preparation method of degradable sludge-based mulching film |
| CN103289134A (en) * | 2013-06-25 | 2013-09-11 | 安徽雪郎生物科技股份有限公司 | Fully biodegradable and multi-functional plastic mulch |
| CN103858718A (en) * | 2014-03-28 | 2014-06-18 | 江西双佳科技发展有限公司 | Peat humic acid degradable liquid mulching film containing rare-earth micro-element fertilizers and anti-freezing agents |
| CN104311886A (en) * | 2014-09-30 | 2015-01-28 | 王信伟 | Agricultural liquid mulching film and production method thereof |
| CN105199151A (en) * | 2015-10-30 | 2015-12-30 | 太仓市天合新材料科技有限公司 | Novel material for forming of mulching film |
| CN105325166A (en) * | 2015-12-02 | 2016-02-17 | 天津创世生态景观建设股份有限公司 | Method for controlling weeds, lowering temperature and preserving soil moisture in nursery stock plantation process |
| CN105419365A (en) * | 2016-01-25 | 2016-03-23 | 陈一坚 | Black liquid mulching film and preparation method thereof |
| CN108811993A (en) * | 2018-07-10 | 2018-11-16 | 成都工业学院 | Mulch and its preparation method and application |
| CN109566001A (en) * | 2018-12-04 | 2019-04-05 | 施正侃 | A kind belt and its production method |
-
1999
- 1999-06-14 CN CN 99109026 patent/CN1277228A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101828495A (en) * | 2010-04-09 | 2010-09-15 | 常州百利基生物材料科技有限公司 | Biodegradable mulch with compound function |
| CN102517032A (en) * | 2011-12-08 | 2012-06-27 | 董广林 | Fully-degradable liquid medical membrane for paddy field |
| CN102517032B (en) * | 2011-12-08 | 2015-02-11 | 董广林 | Fully-degradable liquid medical membrane for paddy field |
| CN102599030A (en) * | 2012-01-19 | 2012-07-25 | 北京化工大学 | Degradable sludge-based mulching film and preparation method of degradable sludge-based mulching film |
| CN102599030B (en) * | 2012-01-19 | 2014-11-05 | 北京化工大学 | Degradable sludge-based mulching film and preparation method of degradable sludge-based mulching film |
| CN103289134B (en) * | 2013-06-25 | 2015-09-23 | 安徽雪郎生物科技股份有限公司 | Multifunctional ground-covering film of fully biodegradable and preparation method thereof |
| CN103289134A (en) * | 2013-06-25 | 2013-09-11 | 安徽雪郎生物科技股份有限公司 | Fully biodegradable and multi-functional plastic mulch |
| CN103858718A (en) * | 2014-03-28 | 2014-06-18 | 江西双佳科技发展有限公司 | Peat humic acid degradable liquid mulching film containing rare-earth micro-element fertilizers and anti-freezing agents |
| CN104311886A (en) * | 2014-09-30 | 2015-01-28 | 王信伟 | Agricultural liquid mulching film and production method thereof |
| CN105199151A (en) * | 2015-10-30 | 2015-12-30 | 太仓市天合新材料科技有限公司 | Novel material for forming of mulching film |
| CN105325166A (en) * | 2015-12-02 | 2016-02-17 | 天津创世生态景观建设股份有限公司 | Method for controlling weeds, lowering temperature and preserving soil moisture in nursery stock plantation process |
| CN105419365A (en) * | 2016-01-25 | 2016-03-23 | 陈一坚 | Black liquid mulching film and preparation method thereof |
| CN108811993A (en) * | 2018-07-10 | 2018-11-16 | 成都工业学院 | Mulch and its preparation method and application |
| CN109566001A (en) * | 2018-12-04 | 2019-04-05 | 施正侃 | A kind belt and its production method |
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