CN105009725A - Peeling and recycling method for soil in plough layer - Google Patents
Peeling and recycling method for soil in plough layer Download PDFInfo
- Publication number
- CN105009725A CN105009725A CN201410168209.9A CN201410168209A CN105009725A CN 105009725 A CN105009725 A CN 105009725A CN 201410168209 A CN201410168209 A CN 201410168209A CN 105009725 A CN105009725 A CN 105009725A
- Authority
- CN
- China
- Prior art keywords
- soil
- earthing
- thickness
- earth
- heavy
- 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.)
- Granted
Links
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The invention provides a peeling and recycling method for soil in a plough layer. The method comprises the steps: gathering soil information of a borrowing area and determining the soil texture of the borrowing area and the borrowing thickness; borrowing soil in a classified manner according to the determined soil texture and the borrowing thickness; and conveying the soil and covering the soil. Furthermore, according to the embodiment of the invention, the method further comprises: gathering soil limitation information of a soil-covering area before soil is covered and determining the covered soil texture and the soil-covering thickness of the soil-covering area according to the gathered soil limitation information; and covering soil by selecting the soil texture which is the determined covered soil texture in the soil from the borrowing step when the soil is covered, wherein the soil-covering thickness of the determined soil-covering thickness. According to the embodiment of the invention, the soil borrowing quality of soil in the plough layer can be improved, and the recycling rate of a resource of soil in the plough layer is ensured.
Description
Technical field
The present invention relates to soil reutilization technology field, particularly relate to a kind of topsoil and peel off and reuse method.
Background technology
The topsoil thickness of ploughing is generally between 20 to 30cm, and its nutrient content is abundant, crop root is intensive and in crumbled structure, be the elite in soil, is also ensure that crops obtain the fundamental prerequisite of stable high yield.Topsoil is once run off; the speed of regeneration will slowly; have certain non-renewable; therefore when ploughing occupied; such as: non-agricultural construction is taken up an area; peel off the table soil in occupied arable land for newly-ploughed arable land, ground inferior or the improvement of other arable soils, valuable topsoil is preserved and realizes recycling, to raising farmland quality, improving the ecological environment has very important value.
But, existing topsoil peel off generally only to comprise with recycling mode fetch earth, muck haulage and earthing three step, and generally adopt the coarse mode that fetches earth in the link that fetches earth, very easily cause destruction and the waste of soil resource.
Summary of the invention
In view of this, the invention provides a kind of topsoil and peel off and reuse method, the soil sampling mass of topsoil can be improved, ensure the reuse ratio of topsoil resource.
A kind of topsoil provided by the invention is peeled off and reuse method, comprise: to fetch earth, muck haulage and earthing, described method also comprises: before described fetching earth, and gathers the soil information in borrow areas, according to the soil information gathered, determine the soil property in borrow areas and the thickness that fetches earth; Described fetching earth comprises: carry out classification according to the soil property determined and the thickness that fetches earth and fetch earth.
Further, described soil information comprises: grogs content, pH value, the content of organic matter and soil thickness.
Further, described soil property comprises: fertile table soil, barren table soil and contaminated surface soil.
Further, the described soil information according to gathering, determine the soil property in borrow areas, comprising:
When the chad of the content of organic matter >=1.5%, soil thickness >=40cm, > 1mm be less than full soil heavy 5%, the particle diameter granule content that is less than 0.01mm account for granule content that the heavy 10-60% of full soil or particle diameter be greater than 0.01mm account for full soil heavy 40-90% time, be that the fertile table that can fetch earth is native;
When the chad of content of organic matter < 1%, soil thickness < 30cm, > 1mm be greater than full soil heavy 10%, the particle diameter granule content that is less than 0.01mm account for granule content that more than 60% heavy or particle diameter of full soil be greater than 0.01mm account for full soil heavy more than 90%, be that the barren table that can not fetch earth is native;
As pH value < 5.5 or pH value > 8.5, it is the contaminated surface soil that can not fetch earth.
Further, described method also comprises: before described earthing, gathers the restricted information of soil in earthing district, needs earthing matter and thickness of earth covering according to the soil restricted information determination earthing district gathered;
Described earthing comprises: from the soil that the described step that fetches earth obtains, choosing soil property is that the described soil of earthing matter that needs determined carries out earthing, and the thickness of earthing is the described thickness of earth covering determined.
Further, described soil restrictive factor comprises: soil types, grogs content, pH value, the content of organic matter and soil thickness.
Further, the earthing matter that needs in the described soil restricted information determination earthing district according to gathering comprises:
When soil types is paddy field, as soil thickness >=40cm, the chad of > 1mm be greater than full soil heavy 10%, the particle diameter granule content that is less than 0.01mm account for granule content that more than 60% heavy or particle diameter of full soil be greater than 0.01mm account for full soil heavy more than 90%, content of organic matter < 1%, need cover fertile table soil;
When soil types is paddy field, as soil thickness < 30cm, fertile table soil need be covered;
When soil types is nonirrigated farmland, as soil thickness >=40cm, the chad of > 1mm be greater than full soil heavy 10%, the particle diameter granule content that is less than 0.01mm account for granule content that more than 60% heavy or particle diameter of full soil be greater than 0.01mm account for full soil heavy more than 90%, fertile table need be covered native;
When soil types is nonirrigated farmland, as soil thickness < 30cm, or naked rock makes the region on ground, need cover fertile table soil.
Further, when fetching earth, fetch earth from top to bottom in hillside fields, and reverse the falling back in level land is fetched earth.
Further, when earthing, adopt even earthing and band earthing two kinds of Casing ways.
Beneficial effect of the present invention:
The embodiment of the present invention, when fetching earth, fetch earth by carrying out classification to the soil property in the determined borrow areas of the analysis of the soil information in borrow areas with the thickness that fetches earth according to before fetching earth, unwanted soil is got to avoid leakage getting effective soil or crossing, thus effectively can improve the soil sampling mass of topsoil, ensure the reuse ratio of topsoil resource.
The embodiment of the present invention, when earthing, according to before earthing, earthing is carried out to need earthing matter and thickness of earth covering that the analysis of the restricted information of the soil in earthing district is determined, to ensure that the soil in earthing district obtains good improvement, truly realize the recycling of topsoil.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is that topsoil provided by the invention peels off the schematic flow sheet with the first embodiment of reuse method.
Fig. 2 is that topsoil provided by the invention peels off the schematic flow sheet with the first embodiment of reuse method.
Fig. 3 is that topsoil provided by the invention stripping is intended to the flow process of the embody rule embodiment of reuse method.
Fig. 4 is the table soil resource and distribution schematic diagram thereof that in the embodiment of the present invention, construction project occupies cultivated land.
Fig. 5 is earthing Project Areas schematic diagram in example of the present invention.
Fig. 6 is muck haulage route and interim mound point schematic diagram in example of the present invention.
Fig. 7 is the mode schematic diagram that fetches earth in example of the present invention.
Fig. 8 is Casing ways schematic diagram in example of the present invention.
Embodiment
As shown in Figure 1, be that topsoil provided by the invention peels off the schematic flow sheet with the first embodiment of reuse method, it comprises:
The soil information in step S11, collection borrow areas, according to the soil information gathered, determines the soil property in borrow areas and the thickness that fetches earth.
Step S12, the soil property determined according to step S11 and the thickness that fetches earth carry out classification and fetch earth.
Step S13, muck haulage.
Step S14, earthing.
The embodiment of the present invention, when fetching earth, fetch earth by carrying out classification to the soil property in the determined borrow areas of the analysis of the soil information in borrow areas with the thickness that fetches earth according to before fetching earth, unwanted soil is got to avoid leakage getting effective soil or crossing, thus effectively can improve the soil sampling mass of topsoil, ensure the reuse ratio of topsoil resource.
In the step S11 of Fig. 1, soil information comprises: grogs content, pH value, the content of organic matter and soil thickness.Soil property comprises: fertile table soil, barren table soil and contaminated surface soil.
In step s 11, when the chad of the content of organic matter >=1.5%, soil thickness >=40cm, > 1mm be less than full soil heavy 5%, the particle diameter granule content that is less than 0.01mm account for granule content that the heavy 10-60% of full soil or particle diameter be greater than 0.01mm account for full soil heavy 40-90% time, be that the fertile table that can fetch earth is native; When the chad of content of organic matter < 1%, soil thickness < 30cm, > 1mm be greater than full soil heavy 10%, the particle diameter granule content that is less than 0.01mm account for granule content that more than 60% heavy or particle diameter of full soil be greater than 0.01mm account for full soil heavy more than 90%, be that the barren table that can not fetch earth is native; As pH value < 5.5 or pH value > 8.5, it is the contaminated surface soil that can not fetch earth.This kind of standard, is applicable to various soil types, such as: the anthropogenic soil that paddy field or dry land or field etc. affect through human production activity and transform.
In the step S12 of Fig. 1, carry out classification according to the soil property determined and the thickness that fetches earth to fetch earth and specifically refer to, for dissimilar soil property, separately fetch earth according to the thickness that fetches earth of its correspondence determined, avoid dissimilar soil property to occur the appearance of the phenomenons such as mixing.The mode wherein fetched earth can fully utilize excavator, bulldozer and the mode that fetches earth such as manually to fetch earth.Before specifically fetching earth, first can remove the attachment on stripping place and larger gravel, so that fetch earth; Simultaneously after having fetched earth, in time to place, stripping area and the compacting of construction disturbance face, in order to avoid raise native airborne dust.
In FIG during step S13, use existing road, the selected easy and route of haul distance optimum as far as possible.If there is not available existing road, newly can repair sidewalk, adopt the mode of newly repairing sidewalk simple and practical, account for arable land less, avert danger location.For remote muck haulage, the interim mound point closing on earthing district can also be selected with convenient transportation, and adopt at interim mound point and fill native woven bag and assemble simple and easy retaining wall, prevent erosion.
As shown in Figure 2, be that topsoil provided by the invention peels off the schematic flow sheet with the second embodiment of reuse method, it comprises:
The soil information in step S21, collection borrow areas, according to the soil information gathered, determines the soil property in borrow areas and the thickness that fetches earth.
Step S22, gather the restricted information of soil in earthing district, need earthing matter and thickness of earth covering according to the soil restricted information determination earthing district gathered.
Step S23, the soil property determined according to step S121 and the thickness that fetches earth carry out classification and fetch earth.
Step S24, muck haulage.
Step S25, from the soil that the step that fetches earth obtains, to choose soil property be that the soil of earthing matter that needs determined carries out earthing, and the thickness of earthing is the described thickness of earth covering determined.
The present embodiment, before earthing, need earthing matter and thickness of earth covering according to determining the analysis of the restricted information of the soil in earthing district carry out earthing, to ensure that the soil in earthing district obtains good improvement, truly realize the recycling of topsoil.
In Fig. 2 in step S22, soil restrictive factor comprises: soil types, gravel concentration, pH value, the content of organic matter and table soil thickness.Wherein soil types can be the anthropogenic soil that paddy field or dry land or field etc. affect through human production activity and transform.The earthing matter that needs according to soil restricted information determination earthing district comprises: when soil types is paddy field, as soil thickness >=40cm, the chad of > 1mm be greater than full soil heavy 10%, the particle diameter granule content that is less than 0.01mm account for granule content that more than 60% heavy or particle diameter of full soil be greater than 0.01mm account for full soil heavy more than 90%, content of organic matter < 1%, need cover fertile table soil; When soil types is paddy field, as soil thickness < 30cm, fertile table soil need be covered; When soil types is nonirrigated farmland, as soil thickness >=40cm, the chad of > 1mm be greater than full soil heavy 10%, the particle diameter granule content that is less than 0.01mm account for granule content that more than 60% heavy or particle diameter of full soil be greater than 0.01mm account for full soil heavy more than 90%, fertile table need be covered native; When soil types is nonirrigated farmland, as soil thickness < 30cm, or naked rock makes the region on ground, need cover fertile table soil.
Below in conjunction with instantiation, the embodiment of the present invention is described.
As shown in Figure 3, be that topsoil provided by the invention peels off the schematic flow sheet with the 3rd embodiment of reuse method, it comprises:
In steps A, by the reconnaissance trip to project construction district sheet block B, unsoil is divided into fertile table soil, barren table soil and contaminated surface soil, using fertile table soil as the Tu Yuan that fetches earth, as shown in Figure 4.Wherein, fertile table soil fetches earth thickness 30cm.
In step B, by the investigation to earthing district sheet block F, according to soil restrictive factor difference, earthing is divided into 30cm fertile Biao Tu earthing district and 20cm fertile Biao Tu earthing district, as shown in Figure 5.
In step C, when fetching earth, hillside fields excavation carry out from top to bottom from eminence toward lower, level land from excavation the reverse excavation that falls back in end, as shown in Figure 6.
In step D, between sheet block B with sheet block F, an existing road communicates, and can make muck haulage route; But need newly to repair interim sidewalk to fetching earth with the road in earthing plot to be communicated with, as shown in Figure 7.
In addition, because haul distance is longer, in sheet block B, road is other builds two interim mound points.
In addition, earth moving tool adopts dump truck and lever rubber tire wheelbarrow to complete.
In step e, take even earthing and band earthing two kinds of Casing ways, as shown in Figure 8.Even earthing is by thickness of earth covering requirement, and by manually mound point soil being carried to earthing plot, even earthing in surface, and smoothly reaches tillage requirements; Band earthing increases by ridge culture requirement farming ridge earthing and improve.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (9)
1. a topsoil is peeled off and reuse method, comprise: to fetch earth, muck haulage and earthing, it is characterized in that: described method also comprises: before described fetching earth, gather the soil information in borrow areas, according to the soil information gathered, determine the soil property in borrow areas and the thickness that fetches earth; Described fetching earth comprises: carry out classification according to the soil property determined and the thickness that fetches earth and fetch earth.
2. topsoil as claimed in claim 1 is peeled off and reuse method, it is characterized in that: described soil information comprises: grogs content, pH value, the content of organic matter and soil thickness.
3. topsoil as claimed in claim 2 is peeled off and reuse method, it is characterized in that: described soil property comprises: fertile table soil, barren table soil and contaminated surface soil.
4. topsoil as claimed in claim 2 is peeled off and reuse method, it is characterized in that: the described soil information according to gathering, and determines the soil property in borrow areas, comprising:
When the chad of the content of organic matter >=1.5%, soil thickness >=40cm, > 1mm be less than full soil heavy 5%, the particle diameter granule content that is less than 0.01mm account for granule content that the heavy 10-60% of full soil or particle diameter be greater than 0.01mm account for full soil heavy 40-90% time, be that the fertile table that can fetch earth is native;
When the chad of content of organic matter < 1%, soil thickness < 30cm, > 1mm be greater than full soil heavy 10%, the particle diameter granule content that is less than 0.01mm account for granule content that more than 60% heavy or particle diameter of full soil be greater than 0.01mm account for full soil heavy more than 90%, be that the barren table that can not fetch earth is native;
As pH value < 5.5 or pH value > 8.5, it is the contaminated surface soil that can not fetch earth.
5. the topsoil according to any one of claim 1-4 is peeled off and reuse method, it is characterized in that: described method also comprises: before described earthing, gather the restricted information of soil in earthing district, need earthing matter and thickness of earth covering according to the soil restricted information determination earthing district gathered;
Described earthing comprises: from the soil that the described step that fetches earth obtains, choose soil property is that the described soil of earthing matter that needs determined carries out earthing, and the thickness of earthing is the described thickness of earth covering determined.
6. topsoil as claimed in claim 5 is peeled off and reuse method, it is characterized in that: described soil restrictive factor comprises: soil types, grogs content, pH value, the content of organic matter and soil thickness.
7. topsoil as claimed in claim 6 is peeled off and reuse method, it is characterized in that: the earthing matter that needs in the described soil restricted information determination earthing district according to gathering comprises:
When soil types is paddy field, as soil thickness >=40cm, the chad of > 1mm be greater than full soil heavy 10%, the particle diameter granule content that is less than 0.01mm account for granule content that more than 60% heavy or particle diameter of full soil be greater than 0.01mm account for full soil heavy more than 90%, content of organic matter < 1%, need cover fertile table soil;
When soil types is paddy field, as soil thickness < 30cm, fertile table soil need be covered;
When soil types is nonirrigated farmland, as soil thickness >=40cm, the chad of > 1mm be greater than full soil heavy 10%, the particle diameter granule content that is less than 0.01mm account for granule content that more than 60% heavy or particle diameter of full soil be greater than 0.01mm account for full soil heavy more than 90%, fertile table need be covered native;
When soil types is nonirrigated farmland, as soil thickness < 30cm, or naked rock makes the region on ground, need cover fertile table soil.
8. the topsoil according to any one of claim 1-4 is peeled off and reuse method, and it is characterized in that: when fetching earth, fetches earth from top to bottom in hillside fields, and reverse the falling back in level land is fetched earth.
9. the topsoil according to any one of claim 1-4 is peeled off and reuse method, it is characterized in that: when earthing, adopts even earthing and band earthing two kinds of Casing ways.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410168209.9A CN105009725B (en) | 2014-04-24 | 2014-04-24 | Topsoil is peeled off and reuse method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410168209.9A CN105009725B (en) | 2014-04-24 | 2014-04-24 | Topsoil is peeled off and reuse method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105009725A true CN105009725A (en) | 2015-11-04 |
| CN105009725B CN105009725B (en) | 2017-06-23 |
Family
ID=54400397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410168209.9A Active CN105009725B (en) | 2014-04-24 | 2014-04-24 | Topsoil is peeled off and reuse method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105009725B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106134557A (en) * | 2016-06-15 | 2016-11-23 | 上海市农业机械研究所 | What the supination of a kind of layer-stepping elder generation was ploughed ploughs deeply operational method |
| CN110140467A (en) * | 2019-06-21 | 2019-08-20 | 中国地质大学（北京） | A kind of reconstructing method of paddy fields in south china damage soil |
| CN113439498A (en) * | 2021-06-17 | 2021-09-28 | 广西壮族自治区自然资源生态修复中心 | Method for stripping plough layer in karst rocky mountain area |
| CN115004895A (en) * | 2022-05-13 | 2022-09-06 | 广东华远国土工程有限公司 | Method for stripping, storing and recycling plough layer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102301847A (en) * | 2011-06-22 | 2012-01-04 | 中国矿业大学(北京) | Construction method for land arrangement of rolling ground by topsoil stripping and backfilling |
| RU2476051C1 (en) * | 2012-01-10 | 2013-02-27 | Алексей Николаевич Рыжук | Method of crop growing |
| CN103081602A (en) * | 2012-12-28 | 2013-05-08 | 中国矿业大学(北京) | Method of soil reclamation project topsoil stripping |
| CN103283335A (en) * | 2013-05-22 | 2013-09-11 | 中国矿业大学(北京) | Filling reclamation method for reclaiming coal mining subsidence lands by Yellow River sediment |
| CN103614997A (en) * | 2013-12-19 | 2014-03-05 | 张大安 | Earth borrowing method in process of highway construction |
-
2014
- 2014-04-24 CN CN201410168209.9A patent/CN105009725B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102301847A (en) * | 2011-06-22 | 2012-01-04 | 中国矿业大学(北京) | Construction method for land arrangement of rolling ground by topsoil stripping and backfilling |
| RU2476051C1 (en) * | 2012-01-10 | 2013-02-27 | Алексей Николаевич Рыжук | Method of crop growing |
| CN103081602A (en) * | 2012-12-28 | 2013-05-08 | 中国矿业大学(北京) | Method of soil reclamation project topsoil stripping |
| CN103283335A (en) * | 2013-05-22 | 2013-09-11 | 中国矿业大学(北京) | Filling reclamation method for reclaiming coal mining subsidence lands by Yellow River sediment |
| CN103614997A (en) * | 2013-12-19 | 2014-03-05 | 张大安 | Earth borrowing method in process of highway construction |
Non-Patent Citations (2)
| Title |
|---|
| 王锐等: "《建设占用耕地表土剥离的主要实施条件研究-以重庆市三峡库区移土培肥为例》", 《河北农业科学》 * |
| 董雪: "《吉林省黑土区村庄表土剥离技术集成方案》", 《中国优秀硕士学位论文全文数据库农业科技辑》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106134557A (en) * | 2016-06-15 | 2016-11-23 | 上海市农业机械研究所 | What the supination of a kind of layer-stepping elder generation was ploughed ploughs deeply operational method |
| CN110140467A (en) * | 2019-06-21 | 2019-08-20 | 中国地质大学（北京） | A kind of reconstructing method of paddy fields in south china damage soil |
| CN110140467B (en) * | 2019-06-21 | 2021-08-24 | 中国地质大学（北京） | Reconstruction method of southern paddy field damaged soil |
| CN113439498A (en) * | 2021-06-17 | 2021-09-28 | 广西壮族自治区自然资源生态修复中心 | Method for stripping plough layer in karst rocky mountain area |
| CN115004895A (en) * | 2022-05-13 | 2022-09-06 | 广东华远国土工程有限公司 | Method for stripping, storing and recycling plough layer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105009725B (en) | 2017-06-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Homburg et al. | Anthropogenic effects on soil quality of ancient agricultural systems of the American Southwest | |
| Blanco-Canqui et al. | Principles of soil conservation and management | |
| Ziegler et al. | Environmental consequences of the demise in swidden cultivation in montane mainland Southeast Asia: hydrology and geomorphology | |
| Baig et al. | Making rainfed agriculture sustainable through environmental friendly technologies in Pakistan: A review | |
| Liu et al. | Soil erosion control practices in Northeast China: A mini-review | |
| CN104686003A (en) | Reconstruction method of reclaimed soil profile in coal mining subsidence area | |
| Mitchell et al. | Sustainability of reclaimed desertified land in Ningxia, China | |
| Barclay et al. | The Cleaven Dyke and Littleour: monuments in the Neolithic of Tayside | |
| CN204220612U (en) | Repair the green of heavy metals mining area soil and plant structure | |
| CN105009725B (en) | Topsoil is peeled off and reuse method | |
| CN101743839A (en) | Quick ecological restoration method for destroyed homesteads after earthquakes | |
| CN106561206A (en) | Ecological landscape construction method of stopping and controlling non-point source pollution of multi-metal tailings | |
| CN105580684B (en) | A kind of tail sand bar phytoremediation cultural method | |
| CN206149744U (en) | Transfer system of mulch recycler group is remained to self -propelled | |
| CN104221525A (en) | Method for fast recovering rare earth tailing vegetation | |
| Juniah | Study of carbon value of the allotment of former coal mining land of PT Samantaka Batubara for sustainable mining environment | |
| Yuningsih et al. | Diversity, structure and composition of vegetation in post-coal mining reclamation area in Sumatra, Indonesia | |
| Hobson et al. | The establishment of winter wheat root system architecture in field soils: The effect of soil type on root development in a temperate climate | |
| Dudzińska et al. | Land consolidation as the driving force behind ecological and economic development of rural areas | |
| de Castro et al. | Soil erosion in Brazil from coffee to the present-day soy bean production | |
| Pierret et al. | Reshaping upland farming policies to support nature and livelihoods: lessons from soil erosion in Southeast Asia with emphasis on Lao PDR.[Report of the Management of Soil Erosion Consortium (MSEC) Project] | |
| CN204392789U (en) | The scraper of root stubble machine for recovering broken film | |
| CN205755419U (en) | A kind of bicycle type multifunctional seed drill | |
| CN206184909U (en) | Soil ecological environment recovery block | |
| CN204217433U (en) | Portable for harvester for potato excavates separator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |