CN101016202A - Degradable material and sand-fixation nursery stock cultivation stoup manufactured by the same - Google Patents
Degradable material and sand-fixation nursery stock cultivation stoup manufactured by the same Download PDFInfo
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- CN101016202A CN101016202A CNA2007100344894A CN200710034489A CN101016202A CN 101016202 A CN101016202 A CN 101016202A CN A2007100344894 A CNA2007100344894 A CN A2007100344894A CN 200710034489 A CN200710034489 A CN 200710034489A CN 101016202 A CN101016202 A CN 101016202A
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- alms bowl
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
Abstract
The invention discloses a making method decomposable material to make container of cultivated plant, which consists of 55-80% built material and 20-45% built gel, wherein the built material is composed of 8-15% kaolin, 28-50% pearlite, 10-20% wood dust or chaff, 0-2% composite fertilizer and 2-8% bamboo or paper suede; the built gel contains 1-2% starch, 14-38% low-free aldehyde-urea-aldehyde resin, 2-5% nontoxic soluble gel, 1-6% plasticizer and 1-2% liquid wax; the plant cultivating bulk is composed of upper and lower overlapping sub-bulks and mother bulks; the mother bulk is sealed container with open top; the sub-bulk is open container with 2-10 vent holes on the bottom, which is set in the hole of mother bulk.
Description
Technical field
The present invention relates to a kind of make degradation material that the cultivated plant container uses and the cultivated plant container of making of this material.
Background technology
At present, the material of making cultivated plant container commonly used is generally pottery, plastics etc., they are durable in use, but because it is the non-degradable material, be not suitable for using container,, can disintegrate automatically in the root growth of the institute cultivated plant later stage to a certain degree the time because this container will possess the containing supporting role early stage desert area transplantation with soil nursery stock, no longer have solid shape, thereby avoid obstruction plant-growth.It is better to become the required fertilizer nutrient of plant-growth as container itself.Prior art does not provide this type of material as yet.
Cultivated plant commonly used is generally integral structure with container such as flowerpot etc., usually can only be used for the required solid materials of splendid attire cultivated plant, the required liquid nutriment of plant-growth generally adds by the mode of pouring, can not keep for a long time, flowerpot self can not form a nutriment plenum system, plant is difficult to survival under the condition that exclusion is replenished, as can sand prevention desert area transplantation with soil nursery stock, fix the sand, but because of desert area moisture content highly volatile, transplantation with soil flowerpot commonly used can not be supplied with moisture content for a long time, do not possess the condition that pouring replenishes moisture content again, nursery stock still have no way of absorbing in the desert in the vegetative period ability of nutriment usually fails to survive because of not tiding over smoothly, therefore vegetative period, desert afforestation is administered and is still existed technical problem, prior art still not to have a kind of flowerpot that the desert area cultivated plant is used that is adapted to.
Summary of the invention
The object of the present invention is to provide a kind of material that the cultivated plant container is used of making, but this material natural degradation, container by its made has certain heat-insulation and heat-preservation function, reduce the volatilization of moisture content in the container, the weather that adapts to desert area, after container disintegrated within a certain period of time automatically simultaneously, its residual physical efficiency became the required fertilizer nutrient of plant-growth, and has maintenance moisture content, the effect of keeping soil from packing together.
Another object of the present invention is to provide to be adapted to the container that the desert area cultivated plant is used, it can form a kind of nutriment plenum system for a long time, and is required vegetation period of assurance.
Technical scheme of the present invention is:
A kind of degradation material of making cultivated plant with container, it is made up of composite material, gum blend, and the weight percent of described composite material is 55～80%, and the weight percent of described gum blend is 20～45%, and described composite material forms and weight ratio is:
8～15 parts of kaolin
28～50 parts of perlites
10～20 parts on wood chip or husk
2 parts of composite fertilizers
2～8 parts of bamboo suede or paper suedes,
The composition of described gum blend and weight ratio are:
1～2 part of starch
14～38 parts of low-free formaldehyde Precondensed UreaFormaldehyde Resins
2～5 parts in non-toxic water soluble glue
1～6 part in softening agent
1～2 part of white oil.
As to further improvement of the present invention, described softening agent is ceramic softening agent, and described non-toxic water soluble glue is silicon third glue fat or acrylate glue fat.
As to further improvement of the present invention, described starch is suction starch.
Fix the sand the stock growing alms bowl by above-mentioned making cultivated plant with what the degradation material of container was made, it is characterized in that it is made up of two stacked alms bowl bodies up and down, last alms bowl body is sub-alms bowl, following alms bowl body is female alms bowl, female alms bowl is the encloses container of upper opening, sub-alms bowl is the open container that the bottom has 2～10 breather holes, and described sub-alms bowl bottom places in female alms bowl upper opening.
As to further improvement of the present invention, there is 1～3 suction line to stretch in female alms bowl in the described sub-alms bowl.
As to further improvement of the present invention, described suction line stretches in female alms bowl one section and is fixed in female alms bowl by the sleeve pipe suit.
As to further improvement of the present invention, the cross section of described female alms bowl is square.
As to further improvement of the present invention, the cross section of described female alms bowl is oval.
As to further improvement of the present invention, described sub-alms bowl cross section from top to bottom dwindles gradually.
As to further improvement of the present invention, described female alms bowl cross section from top to bottom dwindles gradually.
Beneficial effect of the present invention is: material provided by the present invention can make cultivated plant have corresponding shape and hardness in early stage with container, satisfy the requirement of containing solid nutriment, because the kaolinic content of composite material is higher, and increased the perlite composition, make container have the heat-insulation and heat-preservation effect, reduce water evaporates, can adapt to the megathermal climate in desert.Container provide the nutriment plenum system of sealing in plant-growth early stage to it, but the later stage natural degradation does not hinder the continued growth of plant after the companion plant growing is gone in the soil, allow the root system of plant grow in the cultivating soil, makes it finish the cultivation process smoothly.Himself also can become the required nutriment of plant-growth, perlite good permeability owing to itself after container disintegrates makes the soil of plant root be difficult for hardening simultaneously, owing to added suction starch, make container after disintegration, still can absorb the flow through moisture content of root of the external world repeatedly, keep the moisture content of plant root to be not easy to run off.Cultivated plant provided by the present invention can be different because of the difference of batching with the degradation time of container, in concrete use, can set the proportioning raw materials of cultivated plant according to the length in vegetative period of cultivated plant with container, it is disintegrated in the appropriate time naturally, need adapt with plant-growth.
The stock growing alms bowl that fixes the sand provided by the present invention is divided into two portions up and down with the flowerpot body, above sub-alms bowl be used for the required solid materials of splendid attire cultivated plant, following female alms bowl can be used to splendid attire water or liquid nutriment, following liquid can slowly evaporate, and volatilize solid materials in the moistening sub-alms bowl of the breather hole by sub-alms bowl, the placement suction line and the line that will absorb water are fixed in the nursery stock root in sub-alms bowl, moisture constantly can be attracted seedling root partly, reach for a long time the effect that required moisture content is provided for plant-growth, the sub-alms bowl that fixes the sand the stock growing alms bowl provided by the present invention is made with the degradation material of different proportionings respectively with female alms bowl, can degrade earlier at plant-growth sub-alms bowl behind the certain phase, sub-alms bowl falls in female alms bowl together with solid materials after disintegrating, continuation is grown in female alms bowl, match with the growth cycle of plant, grow time limit of required moisture content of storing plant of the present invention was 2 years, can satisfy the needs most of the vegetation period, after 2 years, but female alms bowl natural degradation, allow the root system of plant grow in the cultivating soil, finish process the desert area cultivated plant.The rainwater or the snow-broth of female alms bowl upper surface of flowing through can add in female alms bowl.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing.
Fig. 1 fixes the sand stock growing alms bowl structural representation for embodiments of the invention 1;
Fig. 2 fixes the sand stock growing alms bowl vertical view for embodiments of the invention 1;
Fig. 3 fixes the sand stock growing alms bowl structural representation for embodiments of the invention 2;
Fig. 4 fixes the sand stock growing alms bowl vertical view for embodiments of the invention 2;
Fig. 5 fixes the sand stock growing alms bowl structural representation for embodiments of the invention 3;
Fig. 6 fixes the sand stock growing alms bowl vertical view for embodiments of the invention 3.
Among the figure: sub-alms bowl-1, female alms bowl-2, cover plate-3, opening-4, breather hole-5, suction line-6, sleeve pipe-7.
Embodiment
Embodiment 1:
Make of degradation material of the present invention and to fix the sand the stock growing alms bowl, the weight percent of the composite material of sub-alms bowl is 80%, and described composite dose weight percent is 20%, composite material is formed and weight ratio is: 10 parts of kaolin, 50 parts of perlites, 10 parts of wood chips, 8 parts of bamboo suedes.
The composition of described gum blend and weight ratio are: 1 part of starch, 14 parts of low-free formaldehyde Precondensed UreaFormaldehyde Resins, 2 parts in acrylate glue fat, 1 part in ceramic softening agent, 2 parts of white oils.
The weight percent of the composite material of female alms bowl is 67%, and composite dose weight percent is 33%, and described composite material forms and weight ratio is: 10 parts of kaolin, 30 parts of perlites, 20 parts of wood chips, 2 parts of composite fertilizers, 5 parts of paper suedes; Described gum blend is formed and weight ratio is: 1 part of suction starch, 25 parts of low-free formaldehyde Precondensed UreaFormaldehyde Resins, 4 parts of acrylate glue, 1 part in ceramic softening agent, 2 parts of white oils.
Fix the sand stock growing alms bowl structure as depicted in figs. 1 and 2 by what above-mentioned materials was made, it is made up of two stacked alms bowl bodies up and down, last alms bowl body is sub-alms bowl 1, following alms bowl body is female alms bowl 2, female alms bowl 2 is that the cross section is circular bucket, top is by the cover plate 3 hermetically enclosed encloses containers that constitute, have circular open 4 on the cover plate 3, cover plate 3 embeds in the bucket of female alms bowl 2, cover plate 3 embeds in the bucket of female alms bowl 2, constitute the vessel container shapes with barrel rim, sub-alms bowl 1 is rounded section and from top to bottom dwindles gradually, the bottom has the uncovered bucket of the circle of 3 breather holes 5, sub-alms bowl 1 bottom is inserted and to be left minim gap with cover plate 3 in the circular open 4 and cooperates, has 1 cotton suction line 6 to stretch in female alms bowl 2 in the sub-alms bowl 1, and suction line 6 stretches into interior one section of female alms bowl 2 and is fixed in female alms bowl 2 by sleeve pipe 7 suits.
This fixes the sand stock growing earthen bowl alms bowl degradation time is 1 year about half, and female alms bowl degradation time is about 2 years.
Embodiment 2:
Make of degradation material of the present invention and to fix the sand the stock growing alms bowl, the weight percent of the composite material of sub-alms bowl is 75%, and described composite dose weight percent is 25%, described composite material forms and weight ratio is: 8 parts of kaolin, 40 parts of perlites, 18 parts on husk, 2 parts of composite fertilizers, 7 parts of paper suedes.
Described gum blend is formed and weight ratio is: 1 part of starch, 16 parts of low-free formaldehyde Precondensed UreaFormaldehyde Resins, 3 parts in the silicon third glue fat, 3 parts in ceramic softening agent, 2 parts of white oils.
The weight percent of the composite material of female alms bowl is 69%, and described composite dose weight percent is 31%, and described composite material forms and weight ratio is: 15 parts of kaolin, 35 parts of perlites, 15 parts of wood chips, 2 parts of composite fertilizers, 2 parts of bamboo suedes; Described gum blend is formed and weight ratio is: 1 part of suction starch, 20 parts of low-free formaldehyde Precondensed UreaFormaldehyde Resins, 2 parts in acrylate glue fat, 6 parts in ceramic softening agent, 2 parts of white oils.
By above-mentioned materials make fix the sand the stock growing alms bowl structure as shown in Figure 3 and Figure 4: female alms bowl 2 is that the cross section is oval-shaped bucket, top is by the cover plate 3 hermetically enclosed encloses containers that constitute, have elliptical openings 4 on the cover plate 3, cover plate 3 embeds in the bucket of female alms bowl 2, sub-alms bowl 1 is elliptic cross-section and from top to bottom dwindles gradually, the bottom has the uncovered bucket of 10 breather holes 5, leaving minim gap with cover plate 3 in the sub-alms bowl 1 bottom insertion opening 4 cooperates, have 3 cottons suction lines 6 to stretch in female alms bowl 2 in the sub-alms bowl 1, suction line 6 stretches in female alms bowl 2 one section and is fixed in female alms bowl 2 by sleeve pipe 7 suits.
This fixes the sand stock growing earthen bowl alms bowl degradation time is 1 year about half, and female alms bowl degradation time is about 2 years.
Embodiment 3:
Make of degradation material of the present invention and to fix the sand the stock growing alms bowl, the weight percent of the composite material of sub-alms bowl is 76%, and described composite dose weight percent is 24%, described composite material forms and weight ratio is: 10 parts of kaolin, 45 parts of perlites, 13 parts on husk, 2 parts of composite fertilizers, 6 parts of bamboo suedes.
Described gum blend is formed and weight ratio is: 1 part of suction starch, 18 parts of low-free formaldehyde Precondensed UreaFormaldehyde Resins, 2 parts in acrylate glue fat, 1 part in softening agent, 2 parts of white oils.
The weight percent of the composite material of female alms bowl is 55%, and described composite dose weight percent is 45%, and composite material is formed and weight ratio is: 8 parts of kaolin, 28 parts of perlites, 14 parts on husk, 2 parts of composite fertilizers, 3 parts of bamboo suedes; Described gum blend is formed and weight ratio is: 1 part of suction starch, 38 parts of low-free formaldehyde Precondensed UreaFormaldehyde Resins, 3 parts in the silicon third glue fat, 2 parts in ceramic softening agent, 1 part of white oil.
By above-mentioned materials make fix the sand the stock growing alms bowl structure as shown in Figure 5 and Figure 6: female alms bowl 2 is that the cross section is a Square barrel, and top has circular open 4 by the cover plate 3 hermetically enclosed encloses containers that constitute on the cover plate 3, and cover plate 3 embeds in the bucket of female alms bowl 2.Cover plate 3 embeds in the bucket of female alms bowl 2, sub-alms bowl 1 be rounded section and from top to bottom dwindle gradually, the uncovered bucket of circle that the bottom has 4 breather holes 5, leaving minim gap with cover plate 3 in the sub-alms bowl 1 bottom insertion opening 4 cooperates, have 2 cottons suction lines 6 to stretch in female alms bowl in the sub-alms bowl 1, suction line 6 stretches in female 2 alms bowls one section and is fixed in female alms bowl 2 by sleeve pipe 7 suits.
This fixes the sand stock growing earthen bowl alms bowl degradation time is 1 year about half, and female alms bowl degradation time is about 2 years.
Embodiment 4:
Make of degradation material of the present invention and to fix the sand the stock growing alms bowl, the weight percent of the composite material of sub-alms bowl is 75%, and described composite dose weight percent is 25%, described composite material forms and weight ratio is: 8 parts of kaolin, 40 parts of perlites, 18 parts on husk, 2 parts of composite fertilizers, 7 parts of paper suedes.
Described gum blend is formed and weight ratio is: 1 part of suction starch, 16 parts of low-free formaldehyde Precondensed UreaFormaldehyde Resins, 3 parts in the silicon third glue fat, 3 parts in ceramic softening agent, 2 parts of white oils.
The weight percent of the composite material of female alms bowl is 72%, and described composite dose weight percent is 28%, and described composite material forms and weight ratio is: 8 parts of kaolin, 40 parts of perlites, 18 parts on husk, 2 parts of composite fertilizers, 4 parts of paper suedes.
Described gum blend is formed and weight ratio is: 1 part of suction starch, 20 parts of low-free formaldehyde Precondensed UreaFormaldehyde Resins, 5 parts in acrylate glue fat, 1 part in ceramic softening agent, 1 part of white oil.
By above-mentioned materials make fix the sand the stock growing alms bowl structure as shown in Figure 5 and Figure 6: female alms bowl 2 is that the cross section is a Square barrel, top is by the cover plate 3 hermetically enclosed encloses containers that constitute, have circular open 4 on the cover plate 3, cover plate 3 embeds in the bucket of female alms bowl 2, cover plate 3 embeds in the bucket of female alms bowl 2, constitute the vessel container shapes with barrel rim, sub-alms bowl 1 is rounded section and from top to bottom dwindles gradually, the bottom has the uncovered bucket of the circle of 4 breather holes 5, leaving minim gap with cover plate 3 in the sub-alms bowl 1 bottom insertion opening 4 cooperates, have 2 cottons suction lines 6 to stretch in female alms bowl in the sub-alms bowl 1, suction line 6 stretches in female 2 alms bowls one section and is fixed in female alms bowl 2 by sleeve pipe 7 suits.
This fixes the sand stock growing earthen bowl alms bowl degradation time is 1 year about half, and female alms bowl degradation time is about 2 years.
The present invention is including but not limited to above-mentioned embodiment, and softening agent and non-toxic water soluble glue commonly used in this area all can be used for the present invention, as long as adopted the alms bowl body for two stacked up and down structure formations that part is formed, promptly belongs to protection scope of the present invention.
Claims (10)
1, a kind of degradation material, it is made up of composite material, gum blend, and the weight percent of described composite material is 55～80%, and the weight percent of described gum blend is 20～45%, and described composite material forms and weight ratio is:
8～15 parts of kaolin
28～50 parts of perlites
10～20 parts on wood chip or husk
2 parts of composite fertilizers
2～8 parts of bamboo suede or paper suedes,
The composition of described gum blend and weight ratio are:
1～2 part of starch
14～38 parts of low-free formaldehyde Precondensed UreaFormaldehyde Resins
2～5 parts in non-toxic water soluble glue
1～6 part in softening agent
1～2 part of white oil.
2, a kind of degradation material according to claim 1 is characterized in that: described softening agent is ceramic softening agent, and described non-toxic water soluble glue is silicon third glue fat or acrylate glue fat.
3, a kind of degradation material according to claim 2 is characterized in that: described starch is suction starch.
4, fix the sand the stock growing alms bowl by what claim 1 or 2 or 3 described degradation materials were made, it is characterized in that it is made up of two stacked alms bowl bodies up and down, last alms bowl body is sub-alms bowl, following alms bowl body is female alms bowl, female alms bowl is the encloses container of upper opening, sub-alms bowl is the open container that the bottom has 2～10 breather holes, and described sub-alms bowl bottom places in female alms bowl upper opening.
5, the stock growing alms bowl that fixes the sand according to claim 4 is characterized in that: have 1～3 suction line to stretch in female alms bowl in the described sub-alms bowl.
6, the stock growing alms bowl that fixes the sand according to claim 5 is characterized in that: described suction line stretches in female alms bowl one section and is fixed in female alms bowl by the sleeve pipe suit.
7, the stock growing alms bowl that fixes the sand according to claim 6, it is characterized in that: the cross section of described female alms bowl is square.
8, the stock growing alms bowl that fixes the sand according to claim 6 is characterized in that: the cross section of described female alms bowl is for oval.
9, according to claim 7 or the 8 described stock growing alms bowls that fix the sand, it is characterized in that: described sub-alms bowl cross section from top to bottom dwindles gradually.
10, according to claim 7 or the 8 described stock growing alms bowls that fix the sand, it is characterized in that: described female alms bowl cross section from top to bottom dwindles gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100344894A CN100453495C (en) | 2007-02-28 | 2007-02-28 | Degradable material and sand-fixation nursery stock cultivation stoup manufactured by the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100344894A CN100453495C (en) | 2007-02-28 | 2007-02-28 | Degradable material and sand-fixation nursery stock cultivation stoup manufactured by the same |
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| Publication Number | Publication Date |
|---|---|
| CN101016202A true CN101016202A (en) | 2007-08-15 |
| CN100453495C CN100453495C (en) | 2009-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007100344894A Expired - Fee Related CN100453495C (en) | 2007-02-28 | 2007-02-28 | Degradable material and sand-fixation nursery stock cultivation stoup manufactured by the same |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101234925B (en) * | 2008-02-25 | 2010-06-02 | 刘东才 | Method for preparing fertilizer by using volcaniclastic rock and efflorescent matter thereof |
| CN102921716A (en) * | 2012-11-13 | 2013-02-13 | 南京农业大学 | Residual and leaching risk evaluation technology of chelate-induced phytoremediation in heavy-metal contaminated soil |
| CN105764327A (en) * | 2013-11-05 | 2016-07-13 | 埃勒加德控股有限公司 | Method of manufacturing a plant receptacle as well as a plant receptacle |
| CN108093956A (en) * | 2017-12-26 | 2018-06-01 | 沈于酰 | Degradable greening water storage water saving fixtures and implant system |
| CN112358316A (en) * | 2020-11-13 | 2021-02-12 | 萍乡市创优环保工程有限公司 | Degradable wind-shielding sand-fixing sponge ring and preparation method thereof |
| CN112997748A (en) * | 2021-02-24 | 2021-06-22 | 季岩 | Tree planting module and method for arid region and sandstone soil |
| CN113039985A (en) * | 2021-03-05 | 2021-06-29 | 南京市江宁区农业农村局 | Method for planting cinnamomum camphora seedlings |
| CN116200021A (en) * | 2023-03-06 | 2023-06-02 | 杭州智泓达科技有限公司 | Slow-release fertilizer reinforced degradable seedling cup and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1583656A (en) * | 2004-05-27 | 2005-02-23 | 韩长玉 | Easily-degradable ceramic materials and manufacturing method thereof |
| CN201018801Y (en) * | 2007-02-28 | 2008-02-13 | 尹经玲 | Sand-fixation nursery stock planting bowl |
-
2007
- 2007-02-28 CN CNB2007100344894A patent/CN100453495C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101234925B (en) * | 2008-02-25 | 2010-06-02 | 刘东才 | Method for preparing fertilizer by using volcaniclastic rock and efflorescent matter thereof |
| CN102921716A (en) * | 2012-11-13 | 2013-02-13 | 南京农业大学 | Residual and leaching risk evaluation technology of chelate-induced phytoremediation in heavy-metal contaminated soil |
| CN105764327A (en) * | 2013-11-05 | 2016-07-13 | 埃勒加德控股有限公司 | Method of manufacturing a plant receptacle as well as a plant receptacle |
| CN105764327B (en) * | 2013-11-05 | 2019-01-29 | 埃勒加德控股有限公司 | Manufacture the method and container for plants of container for plants |
| CN108093956A (en) * | 2017-12-26 | 2018-06-01 | 沈于酰 | Degradable greening water storage water saving fixtures and implant system |
| CN112358316A (en) * | 2020-11-13 | 2021-02-12 | 萍乡市创优环保工程有限公司 | Degradable wind-shielding sand-fixing sponge ring and preparation method thereof |
| CN112997748A (en) * | 2021-02-24 | 2021-06-22 | 季岩 | Tree planting module and method for arid region and sandstone soil |
| CN113039985A (en) * | 2021-03-05 | 2021-06-29 | 南京市江宁区农业农村局 | Method for planting cinnamomum camphora seedlings |
| CN116200021A (en) * | 2023-03-06 | 2023-06-02 | 杭州智泓达科技有限公司 | Slow-release fertilizer reinforced degradable seedling cup and preparation method thereof |
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|---|---|
| CN100453495C (en) | 2009-01-21 |
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Granted publication date: 20090121 Termination date: 20110228 |