CN108033848A - Preparation method of bare soil moisture-keeping nutrient covering and products thereof - Google Patents

Preparation method of bare soil moisture-keeping nutrient covering and products thereof Download PDF

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Publication number
CN108033848A
CN108033848A CN201810054572.6A CN201810054572A CN108033848A CN 108033848 A CN108033848 A CN 108033848A CN 201810054572 A CN201810054572 A CN 201810054572A CN 108033848 A CN108033848 A CN 108033848A
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parts
straw
water
organic
added
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CN201810054572.6A
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王诒凡
刘卫东
张昭平
陈蔚
王颖
王峰
乔军
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    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05C—NITROGENOUS FERTILISERS
    • C05C9/00—Fertilisers containing urea or urea compounds
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • C05G3/80—Soil conditioners
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K17/00—Soil-conditioning materials or soil-stabilising materials
    • C09K17/52—Mulches
    • 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

Abstract

The present invention relates to a kind of preparation method of bare soil moisture-keeping nutrient covering and products thereof, is straw organic fertilizer by the fermentation of plant straw, water, urea and stover ferment agent；/ 3rd straw organic fertilizers, potato starch, polyethylene glycol 200 and glycerine is taken to obtain organic polyether polyol；Toluene di-isocyanate(TDI), triethanolamine, organic silicone oil, organo-bismuth, 1,4 one butanediols, water are added in organic polyether polyol and obtain organic starch polyurethane foam；/ 5th amount organic starch polyurethane foams are added after taking 1/3rd amount straw organic fertilizers, ammonium persulfate, acrylamide, bentonite, expanded perlite, polyethyleneglycol diacrylate reaction and ammonium hydrogencarbonate obtains solid particle water-retaining agent；Slow-release fertilizer and water-absorbing resin are added in remaining organic starch polyurethane foam with remaining straw organic fertilizer, solid particle water-retaining agent；Algin, water are added, stirring obtains finished product, prevents dust from flying upward, biodegradable beneficial to vegetation growth.

Description

Preparation method of bare soil moisture-keeping nutrient covering and products thereof
Technical field
Covered the present invention relates to a kind of bare soil to no vegetation growth and be beneficial to the natural peace of vegetation growth Entirely, moisture-keeping nutrient effect is good, beneficial to preparation method of bare soil moisture-keeping nutrient covering of vegetation fast-growth and products thereof.
Background technology
At present the soil after Urban House Demolition, much fall into disuse on idle soil and the exposed soil of construction and can produce Raw substantial amounts of dust, directly affects air quality, now many constructors using cover nerve of a covering made of chemicals come It is covered on these soils, to have the function that to suppress dust and beautify the environment, seems that green is a piece of at a distance, be not in fact Really green, it is also very general that it suppresses the effect flown upward of dust, takes stopgap measures and does not control root, it is impossible to fundamentally solves soil dust The defects of flying upward, causes urban afforestation level low, because the dirty long-standing problem by dew airborne dust of naked cause cannot solve.It is even if high in plantation Big trees or flower plant, exposed soil still can with airborne dust and unsightly under it.To solve the problems, such as these, many places Covering Wood leftover, stone or clear-cut hardening of cement are taken exposed soil, although reducing airborne dust, greening effect Fruit is but without even if carry out these exposed soils kind of grass greenization, but usually because these Dry lands, artificially stepping on Step on, soil contains a large amount of building wastes and nonnutritive component and make vegetation growth slowly or be difficult to survive.Although go out at present Some chemical dust suppression methods are showed, have been that dust suppressant is sprayed onto bulk material pile surface, form effective protective layer to reach dust suppression Purpose.Usual dust suppressant has three kinds of film forming, wetting, coalescence performances.Film forming is exactly to make to be formed by dust suppression face to have some strength With the continuous housing of hardness to resist the destruction of the external force factors such as wind-force；Wetting is to make to remain certain wet by dust suppression face Degree, at this moment airborne dust grain density necessarily increases, its sinking speed can also increase.These performances possessed by dust suppressant so that its Since the advent of the world, has been increasingly becoming the main means for administering dust pollution, and the technological development of dust suppressant has also obtained continually and steadily Development.For example, waterglass calcium chloride, tar, carbide slag, polyvinyl alcohol, carboxymethyl cellulose, macromolecule water uptake resin etc. For the dust suppressant of primary raw material important function has been played in many dust suppression fields in succession.But halide dust suppressant pair Metal has certain corrosivity；Inorganic dust suppressant can increase ash, and easily lead to the salination of soil；Macromolecule water uptake Property resin easily lead to soil occur it is hardened, be unfavorable for the growth of plant；Also some macromolecule dust suppressant non-degradables, can be to environment Cause secondary pollution.
The content of the invention
There is provided a kind of to bare soil progress it is an object of the invention to overcome the deficiencies in the prior art Covering prevents dust from flying upward and is beneficial to vegetation fast-growth, biodegradable, non-secondary pollution bare soil moisture-keeping nutrient covers Preparation method of cover material and products thereof.
The object of the present invention is achieved like this：
A kind of preparation method of bare soil moisture-keeping nutrient covering, carries out in accordance with the following steps,
Step 1）, 200 parts of plant straw crushed to length after 1-3 centimetres, to be added to equipped with 200 parts of water, 10 parts of urea Ferment with the fermentation tank of 5 parts of stover ferment agent, control fermentation temperature during the fermentation between 50-70 DEG C, hair The ferment time, stalk dried in the shade as straw organic fertilizer after becoming brown or dark brown at 10 days；
Step 2）, take step 1）The straw organic fertilizer and 200 parts of potato starch of 1/3rd amounts obtained are added to together In reaction kettle, 120 parts of polyethylene glycol 200 and the mixture of 80 parts of glycerine are added, it is small that 5 are reacted at a temperature of 180 °C When, product at reduced pressure is distilled after cooling and is removed water, organic polyether polyol is obtained by filtration；
Step 3）, by 180 parts of toluene di-isocyanate(TDI), 2 parts of triethanolamine, 5 parts of organic silicone oils, 0.6 part of organo-bismuth, 15 1,4 one butanediols, 100 parts of water of part are added to step 2）Organic polyether polyol in, stir and have foam Stop stirring during rising, allow its free foaming at room temperature, obtain organic starch polyurethane foam；
Step 4）, take step 1）The straw organic fertilizer of 1/3rd amounts obtained is added to reaction together with 2 parts of ammonium persulfate In kettle, temperature adjustment is to 50 °C and stirs half an hour, adds 200 parts of acrylamides, 100 parts of bentonite, 50 parts of expanded pearlites Rock and 3 parts of polyethyleneglycol diacrylates, stir evenly, and are warming up to 70 °C, react in 1 hour backward reaction kettle and add step 2）The organic starch polyurethane foam and 5 parts of ammonium hydrogencarbonate of 1/5th obtained amounts, continue uniform stirring, control temperature 70 °C of degree, reacts half an hour, is transferred in washer, is cleaned with water, dried afterwards in 70 DEG C of drier repeatedly, crushes Sieving, obtains solid particle water-retaining agent；
Step 5）, by 50 parts of slow-release fertilizer and 20 parts of water-absorbing resin and step 1）The Straw manures of remaining 1/3rd amount Material, step 4）Obtained solid particle water-retaining agent, which is mixed together, to stir evenly, and is then added to step 3）Remaining organic starch In polyurethane foam；20 parts of algins, 50 parts of water are added, stirring obtains finished product in 20 minutes.
The plant straw include corn stalk, wheat straw, soybean straws, sorghum straw, sunflower straw, peanut straw, One of cotton straws, straw, rice husk, trees rhizome, leaf, careless class, branch or mixture.
The slow-release fertilizer refers to high-nitrogen slow released fertilizer.
The water-absorbing resin is low power water-absorbing resin.
In step 5）Last stirring in be additionally added grass seeds, the grass seeds is Korea lawn grass, Manila, buffalograss, precocity One of standing grain, Festuca Arundinacea, rye grass, Bermuda grass, Trifolium repense.
A kind of bare soil moisture-keeping nutrient covering is the system using any of the above-described kind of bare soil moisture-keeping nutrient covering Prepared by Preparation Method.
The present invention has the positive effect that：
1st, raw material of the present invention has nontoxic, non-corrosiveness based on the biomass materials such as plant straw and potato starch, right Environmental nonpollution, safety and environmental protection, preparation process is simple, it is of low cost the characteristics of, the present invention is sprayed onto after bare soil surface, Continuous covering can be formed, dust is limited in covering, avoids air pollution, reduces soil losses；It is this continuous Covering be exactly organic starch polyurethane foam, play dust-proof effect；There is good biological degradability, the liquid of starch at the same time Rate reaches more than 90%, and gained polyether polyol is organic polyether polyol.
2nd, the present invention possesses film forming, moisturizing, getting fat three zones, while also show that the present invention has the following advantages by experiment ：
1）Wind-proof performance is good.1 square metre of bare soil is chosen, shovel falls the soil layer of 10 cm thicks, weighs, plastic cloth on pad, so The soil that tiling shovel falls on plastic cloth afterwards, by 1.5Kg/m2The logical present invention of sprinkling, after to be filmed, using high-power wind turbine, The deflation of 5 minutes is carried out under conditions of bare soil surface wind speed is 20m/s, any dust raising phenomenon is had no, with weight method Its dust emission is measured as 0.
2）Long-term effect is good.1 square metre of bare soil is chosen according to the method described above, by 30 days winds, days after film forming After shining and drenching with rain, above-mentioned done blowing test is repeated, has not yet to see any dust raising phenomenon, measuring its dust emission with weight method is still 0。
3）Conjunctiva speed is fast, and performance of keeping humidity is good.On the bare soil of large area, the logical present invention is sprayed using on sprinkling truck Bare soil surface is sprinkled upon, fountain height is 2.0 Kg/m2, spray area is 1000 m2；1 it is small when after observe, bare soil Surface starts conjunctiva, and overall conjunctiva effect is good；24 it is small when after observe, there is a conjunctiva of 2~10mm on surface, exposed soil under film Earth surface is in moisture state；Observed after 3 days, not only conjunctiva is complete, and bare soil surface still keeps moisture state.
4）The utilization ratio of fertilizer is high.The present invention has the characteristics that the performance and plant nutrient of biomass water-retaining agent, utilizes High-hydroscopicity can carry out fertilizer element suction-operated, and by being exchanged with surrounding soil environment, play control nutriment The purpose of release, can increase substantially the utilization ratio of fertilizer, reduce fertilizer loss.
Barren and desertification soil can be improved rapidly, good water and soil condition is created for plant growth, if adding plant species Sub or other plants are combined, and can cultivate greenbelt significantly and improve the survival rate of plant, improve the ecological environment, and improve city work The quality and efficiency of Cheng Jianshe.
3rd, current inorganic fertilizer occupies most of market, and the use of this inorganic fertilizer, causes under soil organic matter content Drop, the imbalance of all kinds of nutrients ratios, soil start acidifying, hardened, cause its water conservation, fertilizer conservation, poor air permeability, it is difficult to meet that plant gives birth to It is long to need；The present invention carries out fermentation reaction to generate organic fertilizer, this hair using plant straw and water, urea and stover ferment agent Bright step 1）Under a variety of enzyme effects of stover ferment agent, growth microenvironment is provided for microorganism, plant straw can be made organic The fertilizer such as component are sowed in soil, while this fertilizer function provided by the invention is preferable water stability soil granular knot Structure, can form between its simple grain and macrovoid is formed between fine pore, aggregate, and fine pore can keep moisture, and macrovoid then keeps ventilating, The present invention, which is covered on soil, to form crumb structure soil in soil surface, be can guarantee that the good growth of plant roots, be suitable for Soil improvement and arable farming.The present invention can also make soil after being covered on soil, and the soil is porous, and permeability is good, You Jiyang Divide abundance, profitable strain survival and breeding, and fertilizer conservation water holding capacity is strong, and it is most beneficial for the root system of plant and the life of plant It is long.
4th, step 2 of the invention）、3）Inventive point be that to obtain organic starch polyurethane foam, selected in the present invention The use of reproducible starch, decomposed plant straw is primary raw material, changes into biomass-based polyether polyol and produced instead of petrochemical industry Product polyether polyol, prepares degradable polyurethane foamed material, on the one hand alleviates in industry to the dependence of petrochemical material, delays The energy and environmental crisis that solution current mankind is faced；On the other hand the diversification utilization of starch, plant straw, profit are realized again It is liquefaction solvent with the accessory substance glycerine of production of biodiesel, reduces the cost of material of liquefaction process.Use organo-bismuth (DY-20) catalyst is used as, to the pollution problem of environment during solving；The raw material of production polyurethane mostly come from the past Petrochemical industry, a large amount of valuable petroleum resources of consumption, and product are difficult to decompose and recycle after discarding, and cause serious Pollution problem, the present invention prepares this formula from based on the inventive point of renewable resource and degradable polyurethane material, real The replacement of petrochemical materials is showed, has not only saved petroleum, and realized that renewable resource utilizes while reaches and can drop Environmental requirement is solved, makes high standard degradable polyurethane purposes more extensive.
The degradation experiment of the polyurethane foamed material of the present invention in the soil is carried out using following methods：By the poly- of the present invention Urethane foam film covering is cut into the coupon of 10mm square, in placing into the soil after weighing, samples every month, is brushed after dry The soil of surface attachment is removed, is weighed again, the loss late of calculated weight；It was found that the quality of the every month of polyurethane foam is obvious Reduce, with the progress of degraded, not only polyurethane intensity is decreased obviously and sample fluffs and becomes fragile, but also microcellular structure progressively meets with To destruction, hole wall also suffers from breakage, and polyurethane structural network gap progressively becomes larger.
The present invention is the characteristics of making full use of plant straw cellulosic degree of polymerization high, to make plant using the principle of plant straw Straw long fibre plays enhancement effect in polyurethane foam, and this long fibre is the side that can have had to filming performance Chain, pendant hydroxyl group is reacted with MDI during foaming, is formed preferable cross-linked structure, is made the mechanical performance of foams strengthen.
5th, step 4 of the invention）Realize excellent Water-saving effect.The organic water retention property of soil of the present invention and existing water conservation The Water-saving effect of agent is suitable, while the present invention is environmentally friendly, the problem of will not bringing environmental pollution.It is good having to soil While water retention property, plant growth can be promoted.Therefore the present invention has good water suction, water conservation, moisture absorption, moisturizing, moisture releasing Etc. characteristic, while the present invention is using plant straw as raw material, containing abundant cellulose and hemicellulose in plant straw, as connecing The crosslinked skeleton of branch, also with characteristic biodegradable, that fungus resistance is good, pollution-free, production cost is low.The present invention has fiber Plain base water retention property, is that major advantage is exactly biodegradable.The present invention choose plant straw, using plant straw cellulose with Acrylamide monomer carries out graft copolymerization, selects water solution polymerization process to achieve the purpose that biodegradable, not only avoids stalk The air environmental pollution produced and energy consumption are burned, and can realize the high added value conversion of agricultural crop straw, beneficial to environmental protection.
6th, the present invention can add vegetable seeds, be grown in the covering of the present invention, and it is exposed to be more conducive to covering Soil surface.
Embodiment
Embodiment 1：A kind of preparation method of bare soil moisture-keeping nutrient covering, carries out in accordance with the following steps,
Step 1）, 200 kilograms of plant straw crushed to length after 1-3 centimetres, to be added to equipped with 200 kilograms of water, 10,000 Ferment in the fermentation tank of gram urea and 5 kilograms of stover ferment agent, control fermentation temperature during the fermentation at 50-70 DEG C Between, at 10 days, stalk dried in the shade as straw organic fertilizer fermentation time after becoming brown or dark brown；
Step 2）, take step 1）The straw organic fertilizer and 200 kilograms of potato starch of 1/3rd amounts obtained add together Into reaction kettle, 120 kilograms of polyethylene glycol 200 and the mixture of 80 kilograms of glycerine are added, it is anti-at a temperature of 180 °C Answer 5 it is small when, after cooling by product at reduced pressure distill remove water, organic polyether polyol is obtained by filtration；
Step 3）, by 180 kilograms of toluene di-isocyanate(TDI), 2 kilograms of triethanolamine, 5 kilograms of organic silicone oils, 0.6 kilogram Organo-bismuth, the 1 of 15 kilograms, 4 one butanediols, the water of double centner are added to step 2）Organic polyether polyol in, be sufficiently stirred Stop stirring when uniformly and having a foam rising, allow its free foaming at room temperature, obtain organic starch polyurethane foam；
Step 4）, take step 1）The straw organic fertilizer of 1/3rd amounts obtained is added to instead together with 2 kilograms of ammonium persulfate Answer in kettle, temperature adjustment is to 50 °C and stirs half an hour, adds 200 kilograms of acrylamides, the bentonite of double centner, 50 kilograms Expanded perlite and 3 kilograms of polyethyleneglycol diacrylates, stir evenly, and are warming up to 70 °C, react 1 hour backward reaction kettle Middle addition step 2）The organic starch polyurethane foam and 5 kilograms of ammonium hydrogencarbonate of 1/5th obtained amounts, continue Even stirring, controls 70 °C of temperature, reacts half an hour, is transferred in washer, is cleaned repeatedly with water, afterwards in 70 DEG C of drying Drying, pulverizes and sieves, obtains solid particle water-retaining agent in device；
Step 5）, by 50 kilograms of slow-release fertilizer and 20 kilograms of water-absorbing resin and step 1）The stalk of remaining 1/3rd amount has Machine fertilizer, step 4）Obtained solid particle water-retaining agent, which is mixed together, to stir evenly, and is then added to step 3）It is remaining organic In starch polyurethane foam；20 kilograms of algins, 50 kilograms of water are added, stirring obtains finished product in 20 minutes.
The plant straw include corn stalk, wheat straw, soybean straws, sorghum straw, sunflower straw, peanut straw, One of cotton straws, straw, rice husk, trees rhizome, leaf, careless class, branch or mixture.
The slow-release fertilizer refers to high-nitrogen slow released fertilizer.The water-absorbing resin is low power water-absorbing resin.
In step 5）Last stirring in be additionally added grass seeds, the grass seeds is Korea lawn grass, Manila, buffalograss, precocity One of standing grain, Festuca Arundinacea, rye grass, Bermuda grass, Trifolium repense.
A kind of bare soil moisture-keeping nutrient covering is the system using a kind of above-mentioned bare soil moisture-keeping nutrient covering Prepared by Preparation Method.

Claims (6)

  1. A kind of 1. preparation method of bare soil moisture-keeping nutrient covering, it is characterised in that carry out in accordance with the following steps,
    Step 1）, 200 parts of plant straw crushed to length after 1-3 centimetres, to be added to equipped with 200 parts of water, 10 parts of urea Ferment with the fermentation tank of 5 parts of stover ferment agent, control fermentation temperature during the fermentation between 50-70 DEG C, hair The ferment time, stalk dried in the shade as straw organic fertilizer after becoming brown or dark brown at 10 days；
    Step 2）, take step 1）The straw organic fertilizer and 200 parts of potato starch of 1/3rd amounts obtained are added to together In reaction kettle, 120 parts of polyethylene glycol 200 and the mixture of 80 parts of glycerine are added, it is small that 5 are reacted at a temperature of 180 °C When, product at reduced pressure is distilled after cooling and is removed water, organic polyether polyol is obtained by filtration；
    Step 3）, by 180 parts of toluene di-isocyanate(TDI), 2 parts of triethanolamine, 5 parts of organic silicone oil, 0.6 part of organo-bismuth, 15 parts of 1,4 one butanediols, 100 parts of water are added to step 2）Organic polyether polyol in, stir and have bubble Stop stirring when foam rises, allow its free foaming at room temperature, obtain organic starch polyurethane foam；
    Step 4）, take step 1）The straw organic fertilizer of 1/3rd amounts obtained is added to reaction together with 2 parts of ammonium persulfate In kettle, temperature adjustment is to 50 °C and stirs half an hour, adds 200 parts of acrylamides, 100 parts of bentonite, 50 parts of expanded pearlites Rock and 3 parts of polyethyleneglycol diacrylates, stir evenly, and are warming up to 70 °C, react in 1 hour backward reaction kettle and add step 2）The organic starch polyurethane foam and 5 parts of ammonium hydrogencarbonate of 1/5th obtained amounts, continue uniform stirring, control temperature 70 °C of degree, reacts half an hour, is transferred in washer, is cleaned with water, dried afterwards in 70 DEG C of drier repeatedly, crushes Sieving, obtains solid particle water-retaining agent；
    Step 5）, by 50 parts of slow-release fertilizer and 20 parts of water-absorbing resin and step 1）The Straw manures of remaining 1/3rd amount Material, step 4）Obtained solid particle water-retaining agent, which is mixed together, to stir evenly, and is then added to step 3）Remaining organic starch In polyurethane foam；20 parts of algins, 50 parts of water are added, stirring obtains finished product in 20 minutes.
  2. 2. the preparation method of bare soil moisture-keeping nutrient covering according to claim 1, it is characterised in that the plant Straw includes corn stalk, wheat straw, soybean straws, sorghum straw, sunflower straw, peanut straw, cotton straws, straw, rice One of shell, trees rhizome, leaf, careless class, branch or mixture.
  3. 3. the preparation method of bare soil moisture-keeping nutrient covering according to claim 1, it is characterised in that the sustained release Fertilizer refers to high-nitrogen slow released fertilizer.
  4. 4. according to the preparation method of the bare soil moisture-keeping nutrient covering described in claim 1, it is characterised in that described Water-absorbing resin is low power water-absorbing resin.
  5. 5. according to the preparation method of the bare soil moisture-keeping nutrient covering described in claim 1, it is characterised in that in step 5）Last stirring in be additionally added grass seeds, the grass seeds is Korea lawn grass, Manila, buffalograss, annual bluegrass, Festuca Arundinacea, rye One of grass, Bermuda grass, Trifolium repense.
  6. 6. a kind of bare soil moisture-keeping nutrient covering, it is characterised in that a kind of bare soil moisture-keeping nutrient covering is Prepared using a kind of preparation method of any bare soil moisture-keeping nutrient coverings of claim 1-5.
CN201810054572.6A 2018-01-19 2018-01-19 Preparation method of bare soil moisture-keeping nutrient covering and products thereof Withdrawn CN108033848A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109082059A (en) * 2018-08-02 2018-12-25 江苏丘陵地区镇江农业科学研究所 A kind of Chinese pear plantation ground cover material and preparation method thereof
CN109305858A (en) * 2018-12-06 2019-02-05 天津市琪梦环保科技有限公司 A kind of open ground covering

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1948395A (en) * 2006-10-11 2007-04-18 武汉理工大学 Water retaining fertilizer retaining multifunction polymer composite material and its preparation method
CN101205287A (en) * 2007-12-10 2008-06-25 中国科学院广州化学研究所 Corn straw polyhydric alcohol compound and preparation thereof
CN105175681A (en) * 2015-09-13 2015-12-23 长春工业大学 Preparation method of starch-base rigid polyurethane foam thermal insulation material

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1948395A (en) * 2006-10-11 2007-04-18 武汉理工大学 Water retaining fertilizer retaining multifunction polymer composite material and its preparation method
CN101205287A (en) * 2007-12-10 2008-06-25 中国科学院广州化学研究所 Corn straw polyhydric alcohol compound and preparation thereof
CN105175681A (en) * 2015-09-13 2015-12-23 长春工业大学 Preparation method of starch-base rigid polyurethane foam thermal insulation material

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109082059A (en) * 2018-08-02 2018-12-25 江苏丘陵地区镇江农业科学研究所 A kind of Chinese pear plantation ground cover material and preparation method thereof
CN109082059B (en) * 2018-08-02 2020-11-13 江苏丘陵地区镇江农业科学研究所 Ground covering material for plantation of Chinese pears and preparation method thereof
CN109305858A (en) * 2018-12-06 2019-02-05 天津市琪梦环保科技有限公司 A kind of open ground covering

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Application publication date: 20180515